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- Title
- RELATIONSHIP BETWEEN VELOCITY AND REPETITIONS IN RESERVE IN THE BACK SQUAT, BENCH PRESS, AND DEADLIFT.
- Creator
- Hickmott, Landyn M., Zourdos, Michael C., Florida Atlantic University, Department of Exercise Science and Health Promotion, Charles E. Schmidt College of Science
- Abstract/Description
-
This study examined the relationship between average concentric velocity (ACV) and repetitions in reserve (RIR) in the back squat, bench press, and deadlift. Fourteen resistance-trained men performed three experimental sessions (one for each exercise), which was comprised of 4 sets to failure at 80% of one-repetition maximum. The ACV was recorded on every repetition of every set and cross-referenced with RIR. The main findings of this study were that RIR was a significant predictor of ACV for...
Show moreThis study examined the relationship between average concentric velocity (ACV) and repetitions in reserve (RIR) in the back squat, bench press, and deadlift. Fourteen resistance-trained men performed three experimental sessions (one for each exercise), which was comprised of 4 sets to failure at 80% of one-repetition maximum. The ACV was recorded on every repetition of every set and cross-referenced with RIR. The main findings of this study were that RIR was a significant predictor of ACV for all three exercises; the mean set ACV was significantly different between exercises (p<0.001); and the relationship between RIR and ACV was set-dependent (p<0.001). However, the within-exercise difference in ACV from set-to-set is unlikely to be practically significant as all of these ACV differences were below the threshold of 0.06 m.s-1, which is the smallest worthwhile change in ACV. Therefore, these results suggest that the RIR/ACV relationship is exercise-specific, and is stable from set-to-set.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013522
- Subject Headings
- Resistance Training, Weight training, Resistance Training--methods, Velocity, Exertion
- Format
- Document (PDF)
- Title
- THE LONGITUDINAL RELATIONSHIP BETWEEN REPETITIONS IN RESERVE AND AVERAGE CONCENTRIC VELOCITY IN THE BACK SQUAT AND BENCH PRESS.
- Creator
- Cerminaro, Rebecca M., Zourdos, Michael C., Florida Atlantic University, Department of Exercise Science and Health Promotion, Charles E. Schmidt College of Science
- Abstract/Description
-
This study examined the longitudinal relationship between repetitions in reserve (RIR) and average concentric velocity (ACV) in the back squat and bench press exercises. Fourteen resistance-trained men were randomized into two groups (4-6RIR or 1-3RIR) and completed a six-week program. The RIR/ACV slope was significantly greater (p
Show moreThis study examined the longitudinal relationship between repetitions in reserve (RIR) and average concentric velocity (ACV) in the back squat and bench press exercises. Fourteen resistance-trained men were randomized into two groups (4-6RIR or 1-3RIR) and completed a six-week program. The RIR/ACV slope was significantly greater (p<0.001) in the bench press (0.027±}0.001m.s-1) than squat (0.020±}0.001m.s-1), and was steeper in 1-3RIR than 4-6RIR (p<0.001). The RIR/ACV relationship varied from set-to-set (p=0.001); however, the largest difference in ACV at the same RIR from set-to-set was only 0.044 m.s-1; likely not practically meaningful. The RIR/ACV relationship changed over time (p=0.004); however, since training was not to failure, it is unclear if this longitudinal change was due to improved RIR accuracy or a true change in the RIR/ACV relationship. Therefore, the RIR/ACV relationship is exercise-specific and practically stable from set-to-set; however, future research is needed to determine the long-term stability of this relationship.
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013752
- Subject Headings
- Resistance Training, Weight training, Velocity
- Format
- Document (PDF)
- Title
- THE ACCURACY OF PREDICTING ONE-REPETITION MAXIMUM FROM SUBMAXIMAL VELOCITY IN THE BACK SQUAT AND BENCH PRESS.
- Creator
- Macarilla, Christian T., Zourdos, Michael C., Florida Atlantic University, Department of Exercise Science and Health Promotion, Charles E. Schmidt College of Science
- Abstract/Description
-
This study examined the accuracy of predicting back squat and bench press one repetition maximum (1RM) from submaximal average concentric velocity (ACV).Seventeen resistance trained men performed a warm-up and 1RM test on the squat and bench press, in which ACV was assessed on all repetitions. The ACVs during the warmup closest to 1.0 and 0.5 m.s-1 were used in a 2-point linear regression forecast of 1RM and the ACVs established at the loads closest to 20, 50, 70, and 80% of 1RM were used in...
Show moreThis study examined the accuracy of predicting back squat and bench press one repetition maximum (1RM) from submaximal average concentric velocity (ACV).Seventeen resistance trained men performed a warm-up and 1RM test on the squat and bench press, in which ACV was assessed on all repetitions. The ACVs during the warmup closest to 1.0 and 0.5 m.s-1 were used in a 2-point linear regression forecast of 1RM and the ACVs established at the loads closest to 20, 50, 70, and 80% of 1RM were used in a 4-point 1RM prediction. An ANOVA indicated significant differences between predicted and actual 1RM for all predictions (p<0.001). Both Bland-Altman and Mountain plots confirmed the findings of the ANOVA as data were not tightly conformed to the respective zero difference lines. Therefore, these results suggest that a linear regression forecast using submaximal ACV does not accurately predict 1RM in the ¬back squat and bench press.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013525
- Subject Headings
- Velocity, Resistance Training--methods
- Format
- Document (PDF)
- Title
- EXPLORING INTENTION TO EXERCISE WITHIN A BREAST CANCER SURVIVOR POPULATION.
- Creator
- Hyatt, Brandice Jean, Hall, Michael, Florida Atlantic University, Department of Exercise Science and Health Promotion, Charles E. Schmidt College of Science
- Abstract/Description
-
One modality to improve quality of life, in Breast Cancer Survivors (BCS), is physical activity (PA). Less than 30% of BCS participate in PA. The purpose of this study is to explore BCS’s intention to exercise. Seventy-five BCS patients, undergoing treatment, completed a survey. The survey assessed the following: Health care practitioner influence, Demographics, Stages of Change (SOC), anxiety and depression, perceived barriers to exercise, past and current exercise, and the constructs of the...
Show moreOne modality to improve quality of life, in Breast Cancer Survivors (BCS), is physical activity (PA). Less than 30% of BCS participate in PA. The purpose of this study is to explore BCS’s intention to exercise. Seventy-five BCS patients, undergoing treatment, completed a survey. The survey assessed the following: Health care practitioner influence, Demographics, Stages of Change (SOC), anxiety and depression, perceived barriers to exercise, past and current exercise, and the constructs of the Theory of Planned Behavior (TPB). BCS who were older, had less education, did not exercise before diagnosis, were in the pre-contemplation and contemplation stages, and/or exhibited a low Perceived Behavioral Control had a lower intention to exercise. Incorporating the findings from this research into an intervention may assist with increasing intention to exercise among BCS.
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013703
- Subject Headings
- Breast--Cancer, Exercise, Quality of life
- Format
- Document (PDF)
- Title
- THE EFFECT OF RESISTANCE TRAINING VOLUME ON INDIVIDUAL-LEVEL SKELETAL MUSCLE ADAPTATIONS.
- Creator
- Robinson, Zac P., Zourdos, Michael C., Florida Atlantic University, Department of Exercise Science and Health Promotion, Charles E. Schmidt College of Science
- Abstract/Description
-
Purpose: This study examined inter-individual response variation in muscle size and strength following training with different resistance training (RT) volumes. We hypothesized that despite clear gross variability, we would not detect clear evidence of inter-individual response variation for the primary outcomes. Additionally, we hypothesized that higher weekly set volumes would benefit muscle hypertrophy but not strength outcomes at the group-level. Methods: Sixteen recreationally trained...
Show morePurpose: This study examined inter-individual response variation in muscle size and strength following training with different resistance training (RT) volumes. We hypothesized that despite clear gross variability, we would not detect clear evidence of inter-individual response variation for the primary outcomes. Additionally, we hypothesized that higher weekly set volumes would benefit muscle hypertrophy but not strength outcomes at the group-level. Methods: Sixteen recreationally trained individuals had their lower limbs randomized into either a low (LV = 8 sets per week) or high volume (HV = 16 sets per week) training condition for an initial 11-week intervention (phase 1). After a washout period, a second identical 11-week intervention (phase 2) was conducted with limbs re-randomized to the training conditions. Primary outcomes measured were vastus lateralis (VL) cross-sectional area (CSA), muscle thickness (MT), leg press one-repetition maximum (1RM), and isometric force (MVIC) at baseline, midpoint, and post-intervention for each phase. Results: Higher RT volumes benefited muscle hypertrophy (CSA = 2.04 cm2 [95% HDI: 0.11, 3.81], MT = 0.55 mm [95% HDI: -0.06, 1.19]) to a larger degree than strength outcomes (1RM = 4.05 kg [95% HDI: -1.67, 10.14], MVIC = 0.66 kg [95% HDI: -3.83, 5.07]) at the group-level. Clear gross variability was observed for all primary outcomes, but we did not detect strong evidence in support of true inter-individual response variation (CSA = 0.17 cm2 [95% HDI: 0, 3.54], MT = 0 mm [95% HDI: 0, 1.1], 1RM = 0.59 kg [95% HDI: 0, 7.92], MVIC = 4.49 kg [95% HDI: 0, 9.43]).Conclusion: Higher volumes appear to benefit muscle hypertrophy but not strength at the group-level. Additionally, we failed to detect strong evidence of interindividual response variation to different RT weekly set volumes, despite clear gross variability.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014452
- Subject Headings
- Isometric exercise, Muscles, Sports sciences, Vastus lateralis
- Format
- Document (PDF)
- Title
- The effects of compression socks on perception of post exercise muscle soreness.
- Creator
- Feil, Friederike., College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
Purpose: To evaluate the influence of compression socks worn post exercise on the perceived rating of muscle soreness. Methods: In a randomly cross over design, 16 subjects performed a soreness inducing protocol. Below knee CG (Compression garments) were worn for the next 6 hours post exercise. HR (Heart Rate), RPE (rate of perceived exhaustion) and time to complete one cycle was measured throughout the intervention. PS (Perceived Soreness) was assessed prior, immediate post, 6h, and 24h post...
Show morePurpose: To evaluate the influence of compression socks worn post exercise on the perceived rating of muscle soreness. Methods: In a randomly cross over design, 16 subjects performed a soreness inducing protocol. Below knee CG (Compression garments) were worn for the next 6 hours post exercise. HR (Heart Rate), RPE (rate of perceived exhaustion) and time to complete one cycle was measured throughout the intervention. PS (Perceived Soreness) was assessed prior, immediate post, 6h, and 24h post exercise. Results: There was no significant difference in perception of soreness between compression and no compression at 6h post exercise (p=.136) and at 24h post exercise (p=286). Conclusion: Compression socks worn post exercise did not significantly alter ratings of perceived soreness after a soreness inducing protocol.
Show less - Date Issued
- 2011
- PURL
- http://purl.flvc.org/FAU/3332181
- Subject Headings
- Exercise, Physiological aspects, Physical fitness, Physiological aspects, Musculoskeletal system, Wounds and injuries, Prevention
- Format
- Document (PDF)
- Title
- Assessment of Accuracy of Intra-Set Rating of Perceived Exertion in the Squat, Bench Press, and Deadlift.
- Creator
- Sousa, Colbey A., Zourdos, Michael C., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
The purpose of this research was to investigate how accurate trained lifters were at gauging intra-set rating of Perceived Exertion (RPE) in the squat, bench press, and deadlift. Ten resistance-trained males completed four sets to failure with 80% of their one-repetition maximum (1RM) and verbally indicated when they believed they were at a “6” and “9” RPE. Across all sets and all lifts, the called 9 RPE was more accurate than the called 6 RPE. Additionally, RPE calls were more accurate...
Show moreThe purpose of this research was to investigate how accurate trained lifters were at gauging intra-set rating of Perceived Exertion (RPE) in the squat, bench press, and deadlift. Ten resistance-trained males completed four sets to failure with 80% of their one-repetition maximum (1RM) and verbally indicated when they believed they were at a “6” and “9” RPE. Across all sets and all lifts, the called 9 RPE was more accurate than the called 6 RPE. Additionally, RPE calls were more accurate during set four vs. set one on the squat and deadlift at both the called 6 and 9 RPEs. Further bench press RPE calls were more accurate than squat and deadlift RPE at the called 6, while both bench and deadlift RPE calls were more accurate than squat RPEs at the called 9. Importantly across all sets all RPE calls assessed repetitions in reserve within one repetition of precision.
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00013099
- Subject Headings
- Weight training., Exertion.
- Format
- Document (PDF)
- Title
- Circulating Cell-free DNA and Interleukin-6 Expression Following Acute High-Intensity Interval Exercise in Obesity.
- Creator
- Ferrandi, Peter J., Huang, Chun-Jung, Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
The primary purpose of this study was to examine the impact of acute highintensity interval Exercise (HIIE) on plasma cfDNA and IL-6 responses in obese and normal-weight subjects. Fifteen subjects (8 obese and 7 normal-weight) were recruited to participate in an acute HIIE protocol. Our results demonstrated a significant elevation across time in plasma cfDNA and IL-6 immediately following acute HIIE, with no difference between obese and normal-weight subjects. Furthermore, cfDNA was not...
Show moreThe primary purpose of this study was to examine the impact of acute highintensity interval Exercise (HIIE) on plasma cfDNA and IL-6 responses in obese and normal-weight subjects. Fifteen subjects (8 obese and 7 normal-weight) were recruited to participate in an acute HIIE protocol. Our results demonstrated a significant elevation across time in plasma cfDNA and IL-6 immediately following acute HIIE, with no difference between obese and normal-weight subjects. Furthermore, cfDNA was not correlated with IL-6 in response to acute HIIE in either group. These findings indicate that the obese state does not further exacerbate the release of acute HIIE-induced inflammatory mediators (cfDNA and IL-6), which suggests that HIIE training may serve as a time-effective exercise strategy to improve obesity-associated inflammation.
Show less - Date Issued
- 2017
- PURL
- http://purl.flvc.org/fau/fd/FA00004929, http://purl.flvc.org/fau/fd/FA00004929
- Subject Headings
- Interval training--Physiological aspects., Exercise--Physiological aspects., Physical education and training--Measurement., Gene expression., Cellular control mechanisms.
- Format
- Document (PDF)
- Title
- Effects of Resistance and Aerobic Training on IGF-1 and BDNF Expression in a Murine Model of Alzheimer’s Disease.
- Creator
- Pena, Gabriel S., Whitehurst, Michael, Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
The primary purpose of this study was to investigate the effects of aerobic and resistance training on BDNF and IGF-I expression in a 3xTg-AD mouse model of Alzheimer’s disease. Twenty-four 3xTg-AD mice were randomly assigned to either an aerobic (AT, n=8), resistance (RT, n=8), or control (CNT, n=8) group. Intervention groups underwent 9 weeks of exercise training. Motor behavior and grip strength were measured pre- and post- intervention. Our results showed a significant increase in...
Show moreThe primary purpose of this study was to investigate the effects of aerobic and resistance training on BDNF and IGF-I expression in a 3xTg-AD mouse model of Alzheimer’s disease. Twenty-four 3xTg-AD mice were randomly assigned to either an aerobic (AT, n=8), resistance (RT, n=8), or control (CNT, n=8) group. Intervention groups underwent 9 weeks of exercise training. Motor behavior and grip strength were measured pre- and post- intervention. Our results showed a significant increase in hippocampal BDNF expression in AT mice after a 9-week intervention. Further, AT mice were found to have higher concentrations of IGF-I, and improved motor behavior when compared to RT and CNT. No significant differences were observed in IGF-I concentration between RT and other groups. RT improved grip strength after nine weeks of training. These findings support the use of AT and RT as a tool to improve comorbidities found in Alzheimer’s disease.
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00013094
- Subject Headings
- Alzheimer's disease., Insulin-Like Growth Factor I., Brain-Derived Neurotrophic Factor, Aerobic exercises., Resistance Training.
- Format
- Document (PDF)
- Title
- ACUTE RESPONSE OF NEUROPROTECTIVE ASSOCIATED BIOMARKERS TO VARIOUS COMPOUND RESISTANCE EXERCISES IN WELL-TRAINED MEN.
- Creator
- Johnson, Trevor K., Zourdos, Michael C., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
This study examined if multi-joint resistance exercises could elicit expression of biomarkers associated with neuroprotection. Thirteen well-trained males performed 4 sets to failure at 80% of a one-repetition maximum (1RM) on the back squat, bench press, and deadlift. The biomarkers measured immediately pre- and post-exercise were brain derived neurotrophic factor (BDNF), insulin-like growth factor 1 (IGF-1), cathepsin B (CatB), and interleukin 6 (IL-6). There was a main time effect (p0.05)....
Show moreThis study examined if multi-joint resistance exercises could elicit expression of biomarkers associated with neuroprotection. Thirteen well-trained males performed 4 sets to failure at 80% of a one-repetition maximum (1RM) on the back squat, bench press, and deadlift. The biomarkers measured immediately pre- and post-exercise were brain derived neurotrophic factor (BDNF), insulin-like growth factor 1 (IGF-1), cathepsin B (CatB), and interleukin 6 (IL-6). There was a main time effect (p<0.01) for BDNF with significant increases in the deadlift (p=0.01) and bench press (p=0.01) conditions, but not the squat (p=0.21). There was a main time effect (p<0.01) for IL-6 with a significant increase in the squat (p<0.01). There was no significant increase in CatB or IGF-1 (p>0.05). Additionally, there was no significant relationship between BDNF and IL-6 response.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FA00013322
- Subject Headings
- Biomarkers, Neuroprotection, Resistance Training, Brain-Derived Neurotrophic Factor, Insulin-Like Growth Factor I, Cathepsin B, Interleukin-6, Men.
- Format
- Document (PDF)
- Title
- Acute and temporal responses of brain–derived neurotrophic factor and Interleukin-6 to high and low repetition resistance training programs.
- Creator
- Quiles, Justin M., Zourdos, Michael C., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
The purpose of this study was to determine if resistance exercise altered peripheral BDNF concentration. Eighteen trained male subjects were split into two groups performing varied repetition ranges. DUP-HR and DUP-LR groups trained 3x/week for 8 weeks, and were equated for total volume (repetitions X sets X intensity). Plasma BDNF and interleukin-6 (IL-6) levels were measured prior to and immediately following the first exercise session of weeks 1, 2, 4 and 6. Pre-exercise levels were also...
Show moreThe purpose of this study was to determine if resistance exercise altered peripheral BDNF concentration. Eighteen trained male subjects were split into two groups performing varied repetition ranges. DUP-HR and DUP-LR groups trained 3x/week for 8 weeks, and were equated for total volume (repetitions X sets X intensity). Plasma BDNF and interleukin-6 (IL-6) levels were measured prior to and immediately following the first exercise session of weeks 1, 2, 4 and 6. Pre-exercise levels were also assessed prior to the second and third sessions of week 1 and 6. Lastly, resting levels were measured before and after training intervention. No group differences (p>0.05) were detected for either biomarker. An acute BDNF elevation (p=0.018) was detected only in the final week of training. IL-6 elevations were detected at all acute measurements (p<0.01). BDNF and IL-6 percentage change correlated significantly (p<0.05) in week-1. No chronic alterations were observed (p>0.05).
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00004461, http://purl.flvc.org/fau/fd/FA00004461
- Subject Headings
- Bioenergetics, Cognitive science, Exercise -- Physiological aspects, Kinesiology, Metabolic syndrome -- Pathophysiology, Neurons -- Physiology, Neurophysiology, Neurotrophic functions
- Format
- Document (PDF)
- Title
- Myokine Cathepsin B Expression with Exercise Training in the 3xTg-AD Murine Model of Alzheimer’s Disease.
- Creator
- Paez, Hector G., Khamoui, Andy V., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
This research investigated the relationship between exercise training and cathepsin B expression in the 3xTg-AD murine model of Alzheimer’s disease. 3xTg-AD mice were assigned to control (Tg, n=10), aerobic training (Tg+AT, n=10), or resistance training (Tg+RT, n=10). RotaRod peak latency and grip strength were assessed as preand post-measurements. Skeletal muscle was collected after training and analyzed for cathepsin B protein. Tg+RT showed greater grip strength than Tg and Tg+AT at...
Show moreThis research investigated the relationship between exercise training and cathepsin B expression in the 3xTg-AD murine model of Alzheimer’s disease. 3xTg-AD mice were assigned to control (Tg, n=10), aerobic training (Tg+AT, n=10), or resistance training (Tg+RT, n=10). RotaRod peak latency and grip strength were assessed as preand post-measurements. Skeletal muscle was collected after training and analyzed for cathepsin B protein. Tg+RT showed greater grip strength than Tg and Tg+AT at posttesting (p ≤ 0.05). Only Tg+AT showed an improvement in RotaRod peak latency (p ≤ 0.05). Gastrocnemius weight was greater in Tg+RT compared to Tg (p ≤ 0.05), and no differences were observed in cathepsin B or procathepsin B expression (p > 0.05). This data suggests that cathepsin B was not induced by either mode of exercise training, however, physical function and muscle mass were improved, therefore inclusion of both training modalities may address peripheral comorbidities in Alzheimer’s disease.
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00013092
- Subject Headings
- Cathepsins., Alzheimer's disease., Aerobic exercises., Resistance Training.
- Format
- Document (PDF)
- Title
- The effect of menopausal status on substrate utilization in younger women during submaximal exercise.
- Creator
- Pittinger, Elizabeth Smith, Zoeller, Robert F., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
The purpose of this study was to determine if surgically-induced menopause in younger women affects substrate utilization during submaximal exercise while controlling for other potential confounds. METHODS: Thirteen untrained female subjects (33-50 years old) were recruited: oophorectomized (Group O = 5) and premenopausal controls (Group C = 8). Two separate visits included: body composition and maximal treadmill exercise test; followed by substrate utilization via open-circuit spirometry...
Show moreThe purpose of this study was to determine if surgically-induced menopause in younger women affects substrate utilization during submaximal exercise while controlling for other potential confounds. METHODS: Thirteen untrained female subjects (33-50 years old) were recruited: oophorectomized (Group O = 5) and premenopausal controls (Group C = 8). Two separate visits included: body composition and maximal treadmill exercise test; followed by substrate utilization via open-circuit spirometry during 45 minutes of treadmill walking at 50% VO2max. RESULTS: When controlling for multiple variables affecting whole-body substrate utilization (age, VO2max, physical activity, body composition, fasting glucose, menstrual phase and diet), there was no difference in substrate utilization between pre- and postmenopausal women as measured by respiratory exchange ratio (RER) (0.83 ± 0.04 v 0.84 ± 0.03, p=0.47). CONCLUSIONS: Menopausal status does not appear to have an effect on substrate utilization during submaximal exercise in younger women.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00004400, http://purl.flvc.org/fau/fd/FA00004400
- Subject Headings
- Lipids--Metabolism, Exercise for women--Physiological aspects, Menopause--Physiological aspects, Endocrine gynecology
- Format
- Document (PDF)
- Title
- The effect of acute moderate-intensity continuous and high intensity interval exercise on serum brain-derived neurotrophic factor in recreationally trained males.
- Creator
- Mock, Thomas J., Whitehurst, Michael, Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
BDNF is a neurotrophin that enhances neural health and is increased by exercise. PURPOSE: To compare moderate continuous (MCE) and high-intensity interval exercise (HIE) effects on serum BDNF levels, and examine the relationship between BDNF and lactate. METHODS: Seven males completed a VO2peak test and two protocols on separate days, (MCE) 28 min at 60% Workrate max (WRmax) and (HIE) 28 min of intervals at 90%WRmax (10- 1 min intervals separated by 2 min of rest). Serum BDNF and lactate were...
Show moreBDNF is a neurotrophin that enhances neural health and is increased by exercise. PURPOSE: To compare moderate continuous (MCE) and high-intensity interval exercise (HIE) effects on serum BDNF levels, and examine the relationship between BDNF and lactate. METHODS: Seven males completed a VO2peak test and two protocols on separate days, (MCE) 28 min at 60% Workrate max (WRmax) and (HIE) 28 min of intervals at 90%WRmax (10- 1 min intervals separated by 2 min of rest). Serum BDNF and lactate were determined prior, during, and following both protocols. RESULTS: BDNF levels (pg/mL) increased from baseline during HIE and MCE (p<.05). The BDNF response to HIE correlated with lactate for area under the curve (AUC) (r=0.901; P<0.05). CONCLUSION: HIE is an effective alternative to MCE at increasing BDNF. Additionally, lactate may act as a measure of intensity or a mediator of the BDNF response to exercise.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00004219, http://purl.flvc.org/fau/fd/FA00004219
- Subject Headings
- Biochemical markers., Neurons--Physiology., Cell aging--Physiology., Neurotrophic function., Metabolic syndrome--Pathophysiology.
- Format
- Document (PDF)
- Title
- Temporal response of creatine kinase and fibroblast growth factor-21 to high and low repetition resistance training programs.
- Creator
- Blanco, Rocky, Zourdos, Michael C., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
The purpose of this study was to examine the acute and temporal response of CK- MM and FGF-21 to 3-day/wk. different repetition-range, volume-equated resistance training programs over 8-weeks in previously trained males. Sixteen trained, college- aged males were counterbalanced into high (DUP-HR) or low (DUP-LR) repetition groups. Subjects performed the squat and bench press 3x/wk. for 8 weeks. Blood samples were collected at various intervals throughout the study. Trained individuals did not...
Show moreThe purpose of this study was to examine the acute and temporal response of CK- MM and FGF-21 to 3-day/wk. different repetition-range, volume-equated resistance training programs over 8-weeks in previously trained males. Sixteen trained, college- aged males were counterbalanced into high (DUP-HR) or low (DUP-LR) repetition groups. Subjects performed the squat and bench press 3x/wk. for 8 weeks. Blood samples were collected at various intervals throughout the study. Trained individuals did not elicit significant acute or chronic changes in CK-MM or FGF-21 following training and the lack of change was present in both groups. Additionally, neither biomarker correlated with changes in 1RM strength. There was a very strong correlation between acute mean (r=0.95) and acute percentage change (r=0.97) increase from pre training to post training in week #1. Additionally, a moderate correlation in percentage change was observed (r=0.59) of both biomarkers from pre training to 48 hours post training in week #2.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00004429, http://purl.flvc.org/fau/fd/FA00004429
- Subject Headings
- Bioenergetics, Cellular signal transduction, Fibroblast growth factors, Metabolic syndrome -- Pathophysiology, Protein kinases -- Inhibitors -- Therapeutic use
- Format
- Document (PDF)
- Title
- Teaching Adolescents and Young Adults With Autism Spectrum Disorders How to Respond to Social Media Lures.
- Creator
- Agganis, Jennifer A., Dukes, Charles, Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
This study used a training package to teach social media safety skills, using Facebook, to adolescents and young adults diagnosed with autism spectrum disorders in a small group setting. Participants were taught to decline, block and report when they received a lure from someone that they do not know. A multiple baseline design across lures demonstrated the effects of the intervention on participant performance. Results confirmed an increase in social media safety skills performed by all...
Show moreThis study used a training package to teach social media safety skills, using Facebook, to adolescents and young adults diagnosed with autism spectrum disorders in a small group setting. Participants were taught to decline, block and report when they received a lure from someone that they do not know. A multiple baseline design across lures demonstrated the effects of the intervention on participant performance. Results confirmed an increase in social media safety skills performed by all participants. Participants were able to maintain this skill set once the training package was removed. Spontaneous generalization was demonstrated by all participants for some lures. Generalization of social media safety skills was demonstrated across participants in a setting where they did not receive instruction. Limitations and implications for future research are discussed.
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00013049
- Subject Headings
- Autism spectrum disorders., Social media., Safety education., Facebook (Electronic resource).
- Format
- Document (PDF)
- Title
- The Effect of Maximal Aerobic Exercise on Plasma BDNF and BDNF Expression in PBMCs in Obese and Non-Obese Individuals.
- Creator
- Maharaj, Arun, Whitehurst, Michael, Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
-
The purpose of this study was to determine if maximal aerobic exercise promotes BDNF expression in obese individuals. Plasma levels and the expression of BDNF in PBMCs were examined. 22 participants (10 obese, 12 non-obese) completed a V02max treadmill test and blood was obtained pre, post, and 1 and 2 hours into exercise recovery. Plasma and PBMCs were isolated and analyzed for BDNF via ELISA and Western blot techniques. A significant effect for time was observed for plasma BDNF (P=
Show moreThe purpose of this study was to determine if maximal aerobic exercise promotes BDNF expression in obese individuals. Plasma levels and the expression of BDNF in PBMCs were examined. 22 participants (10 obese, 12 non-obese) completed a V02max treadmill test and blood was obtained pre, post, and 1 and 2 hours into exercise recovery. Plasma and PBMCs were isolated and analyzed for BDNF via ELISA and Western blot techniques. A significant effect for time was observed for plasma BDNF (P= <0.00 1 ). Additionally, A significant group-by-time interaction was found from pre-to-RIH for BDNF expression in PBMCs (P= 0.046). Further, significant correlations were found between BMI and waist circumference (r= .91, P< 0.001), WHR (r= .51, P= 0.002) and Pre-to-RlH ratio (r=0.58, P=0.008). Young obese subject's BDNF response to maximal exercise was consistent with previous studies. Post-exercise BDNF expressed in PBMCs were significantly higher than rest suggesting immunological-neuroprotective interactions in the CNS.
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004664, http://purl.flvc.org/fau/fd/FA00004664
- Subject Headings
- Biochemical markers, Blood lipoproteins, Blood plasma -- Physiology, Exercise -- Physiological aspects, Obesity -- Exercise therapy
- Format
- Document (PDF)
- Title
- Time-course of Muscle Damage and Performance Fatigue in the Squat, Bench Press, and Deadlift in Resistance Trained Men.
- Creator
- Belcher, Daniel, Zourdos, Michael C., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
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This research examined the time-course of muscle damage in the squat, bench press, and deadlift. Ten resistance-trained males performed four sets to failure with 80% of one-repetition maximum (1RM) for each exercise on three separate weeks. Swelling, range of motion (ROM), delayed onset muscle soreness (DOMS), lactate dehydrogenase (LDH), creatine kinase (CK), and average concentric velocity (ACV) were assessed pretraining and at five timepoints post-training: -0, 24, 48, 72, and 96 hours....
Show moreThis research examined the time-course of muscle damage in the squat, bench press, and deadlift. Ten resistance-trained males performed four sets to failure with 80% of one-repetition maximum (1RM) for each exercise on three separate weeks. Swelling, range of motion (ROM), delayed onset muscle soreness (DOMS), lactate dehydrogenase (LDH), creatine kinase (CK), and average concentric velocity (ACV) were assessed pretraining and at five timepoints post-training: -0, 24, 48, 72, and 96 hours. Swelling (p<0.01) increased immediately post-training, and DOMS (p<0.01) increased at 24 hours post-training in the bench press condition. Additionally, DOMS increased at 48 hours in both squat and deadlift conditions (p<0.01). Squat and deadlift elevated CK immediately post-training (p<0.01), but LDH only increased in the squat post-training. Immediately post in the bench press ACV was decreased (p<0.01) along with in the squat for up to 72 hours (p<0.01), however, ACV did not change following the deadlift (p>0.05).
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00013053
- Subject Headings
- Resistance Training., Muscle Fatigue--physiology., Weight training--Physiological aspects.
- Format
- Document (PDF)
- Title
- Validity of Linear Position Transducers Versus the Optotrak Certus 3D Motion Capture System.
- Creator
- Goldsmith, Jacob A., Zourdos, Michael C., Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
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The purpose of this study was to investigate the validity of linear position transducers (LPTs), The Open Barbell System (OBS) and Tendo Weightlifting Analyzer System (TWAS), in comparison to criterion measure Optotrak Certus (OC3D). Further, we aimed to compare LPTs against each other. Twenty-five resistance-trained males were recruited, and reported to the laboratory for one day of data collection. Subjects performed one-repetition maximum (1 RM) testing of the squat, then had a...
Show moreThe purpose of this study was to investigate the validity of linear position transducers (LPTs), The Open Barbell System (OBS) and Tendo Weightlifting Analyzer System (TWAS), in comparison to criterion measure Optotrak Certus (OC3D). Further, we aimed to compare LPTs against each other. Twenty-five resistance-trained males were recruited, and reported to the laboratory for one day of data collection. Subjects performed one-repetition maximum (1 RM) testing of the squat, then had a standardized rest before completing one set to failure with 70% 1 RM. There was no significant difference in average velocity (AV) between either LPT vs. OC3D. T-tests revealed significant differences between LPTs and OC3D peak velocity (PV) (OBS: p=0.02080; TWAS: p<0.01). A significant difference was detected between OBS and TWAS PV (p<0.01). OBS and TWAS demonstrated concurrent validity compared to OC3D for AV (OBS: p=0.2014; TWAS: p=0.5466). Neither LPT was a valid measure ofPV (OBS: p=0.0208; TWAS: p<0.01).
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004711, http://purl.flvc.org/fau/fd/FA00004711
- Subject Headings
- Biomechanics, Computers, Special purpose, Coordinate measuring machines, Mechatronics, Medical electronics -- Instrumentation, Transducers
- Format
- Document (PDF)
- Title
- The Comparison of High-Intensity Interval Exercise vs. Continuous Moderate Exercise on C1q/TNF-Related Protein-9 Expression and Flow-Mediated Vasodilation.
- Creator
- Fico, Brandon G., Huang, Chun-Jung, Florida Atlantic University, College of Education, Department of Exercise Science and Health Promotion
- Abstract/Description
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The primary purpose of this study was to investigate the effect of acute high-intensity interval exercise (HIIE) vs. continuous moderate-intensity exercise (CME) on serum CTRP9 and brachial FMD responses in obese and normal-weight subjects. Sixteen participants (9 obese and 7 normal-weight) completed HIIE and CME in a randomized fashion. Our results showed a significant time effect for CTRP9 immediately following acute HIIE and CME in both groups. Furthermore, both significant treatment by...
Show moreThe primary purpose of this study was to investigate the effect of acute high-intensity interval exercise (HIIE) vs. continuous moderate-intensity exercise (CME) on serum CTRP9 and brachial FMD responses in obese and normal-weight subjects. Sixteen participants (9 obese and 7 normal-weight) completed HIIE and CME in a randomized fashion. Our results showed a significant time effect for CTRP9 immediately following acute HIIE and CME in both groups. Furthermore, both significant treatment by time and group by time interactions for FMD were observed following both exercise protocols, with greater CME-induced FMD response in obese subjects than normal-weight subjects. Additionally, a positive correlation in percent change (baseline to peak) between CTRP9 and FMD was observed following acute CME. These findings support acute CME for improvement of endothelial function in obesity. Furthermore, the novel results from this study provide a foundation for additional examination of the mechanisms of exercise-mediated CTRP9 on endothelial function.
Show less - Date Issued
- 2017
- PURL
- http://purl.flvc.org/fau/fd/FA00004915, http://purl.flvc.org/fau/fd/FA00004915
- Subject Headings
- Cardiovascular system--Physiology., Biological transport., Exercise--Physiological aspects., Interval training--Physiological aspects., Bioinformatics., Exercise--Health aspects., Lifestyles--Health aspects., Gene expression.
- Format
- Document (PDF)