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- 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
- 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
- THE INFLUENCE OF REPETITIONS PER SET ON BACK SQUAT AND BENCH PRESS REPETITIONS IN RESERVE RATING ACCURACY.
- Creator
- Pelland, Joshua C., Zourdos, Michael C., Florida Atlantic University, Department of Exercise Science and Health Promotion, College of Education
- Abstract/Description
-
This study examined the effect of repetitions per set as a function of changing load (percentage of one-repetition maximum) on the accuracy of intraset repetitions in reserve (RIR) predictions in the back squat and bench press. Twelve resistance trained men completed three multi-set back squat and bench press training sessions that differed in the number of target repetitions (session 1: 10 repetitions; session 2: 8 repetitions; session 3: 6 repetitions). The last set of each session was...
Show moreThis study examined the effect of repetitions per set as a function of changing load (percentage of one-repetition maximum) on the accuracy of intraset repetitions in reserve (RIR) predictions in the back squat and bench press. Twelve resistance trained men completed three multi-set back squat and bench press training sessions that differed in the number of target repetitions (session 1: 10 repetitions; session 2: 8 repetitions; session 3: 6 repetitions). The last set of each session was performed until muscular failure in which subjects verbally indicated when they perceived 4 RIR and 1 RIR. For each RIR prediction, RIRDIFF [perceived RIR - actual RIR] was calculated. Differences in RIRDIFF were analyzed using both raw RIRDIFF (including positive and negative values) and absolute RIRDIFF (absolute values) via MANOVA and factorial ANOVA. The model controlled for the covariates session-type, percentage of 1RM, and total repetitions per set. Overall, RIR accuracy at the predicted 1 RIR was significantly greater (i.e., lower absolute RIRDIFF) than at the predicted 4 RIR in both the bench press (4 RIR: 1.00 ± 0.18 vs. 1 RIR: 0.69 ± 0.12; p = 0.028) and the squat (4 RIR: 1.43 ± 0.31 vs. 1 RIR: 0.79 ± 0.26; p = 0.007). No covariates significantly affected RIR accuracy (p = 0.085 – 0.518) at the predicted 1 RIR. However, at the predicted 4 RIR, the covariate repetitions per set affected raw RIRDIFF in both the squat (p = 0.007) and bench press (p < 0.001), indicating that subjects tended to overpredict RIR in lower repetition sets and underpredict RIR in higher repetition sets.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014004
- Subject Headings
- Resistance Training, Weight training, Exercise--Research
- Format
- Document (PDF)
- 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
- CHANGES IN INTRASET RIR ACCURACY DURING SIX WEEKS OF BENCH PRESS TRAINING IN TRAINED MEN.
- Creator
- Remmert, Jacob F., Zourdos, Michael C., Florida Atlantic University, Department of Exercise Science and Health Promotion, College of Education
- Abstract/Description
-
This study examined whether accuracy of intraset RIR predictions changes over time. Nine resistance trained men completed three bench press training sessions per week for six weeks, with the last set of each session performed until muscular failure. During the set to failure, subjects verbally indicated when they perceived 4 repetitions in reserve (RIR) and 1 RIR during the set. For each RIR prediction, the difference between perceived RIR and actual RIR was calculated as RIRDIFF. We analyzed...
Show moreThis study examined whether accuracy of intraset RIR predictions changes over time. Nine resistance trained men completed three bench press training sessions per week for six weeks, with the last set of each session performed until muscular failure. During the set to failure, subjects verbally indicated when they perceived 4 repetitions in reserve (RIR) and 1 RIR during the set. For each RIR prediction, the difference between perceived RIR and actual RIR was calculated as RIRDIFF. We analyzed differences in RIRDIFF using both the raw RIRDIFF (including positive and negative values) and the absolute values of all RIRDIFF using a factorial MANOVA. Covariates included proximity to failure of the RIR prediction, total repetitions performed per set, percentage of one-repetition maximum lifted, the week of training, and the session (1, 2, or 3 within each seek). For the raw RIRDIFF all covariates, except for percentage of 1RM (p > 0.05) were significantly related to the outcome measure at both the predicted 4 and 1 RIR (p < 0.001 to p = 0.04). Specifically, RIRDIFF was significantly higher in weeks 1-4 versus weeks 5-6 (p < 0.001 to p = 0.005). However, the only covariate which significantly impacted the absolute value RIRDIFF at both the predicted 4 (p = 0.033) and 1 RIR (p = 0.022) was total repetitions per set. These results indicate that trained men tend to shift from overpredicting to underpredicting RIR over time and that more repetitions in a set is related to more inaccurate RIR predictions. However, the actual accuracy (i.e., absolute value RIRDIFF) did not significantly change over six weeks of training.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014007
- Subject Headings
- Resistance Training, Resistance Training--methods, Weight training
- Format
- Document (PDF)
- Title
- The scapula's role for optimizing recruitment of the pectoralis major during the supine dumbbell chest press.
- Creator
- Roberts, Jim., Florida Atlantic University, O'Kroy, Joseph A.
- Abstract/Description
-
The purpose of this investigation was to quantify the electrical activity in the pectoralis major during a supine dumbbell chest press while maintaining a fixed and non-fixed scapula. Fifteen neophyte male subjects between the ages of 18--45 participated in the investigation. Each subject performed five repetitions with 85% of their estimated 1RM in both a fixed (FI) and non-fixed (FL) scapulae position. Measurement of EMG activity was recorded from the shoulder girdle and localized...
Show moreThe purpose of this investigation was to quantify the electrical activity in the pectoralis major during a supine dumbbell chest press while maintaining a fixed and non-fixed scapula. Fifteen neophyte male subjects between the ages of 18--45 participated in the investigation. Each subject performed five repetitions with 85% of their estimated 1RM in both a fixed (FI) and non-fixed (FL) scapulae position. Measurement of EMG activity was recorded from the shoulder girdle and localized musculature via pre-amplified bipolar skin surface electrodes for the duration of both testing bouts. Data analysis employed a repeated measures ANOVA (p < 0.05). No significant difference in measured electrical activity was noted for the pectoralis major between the two tested positions of the scapulae. Therefore, it appeared scapular positioning did not influence measured electrical activity in the pectoralis major.
Show less - Date Issued
- 2001
- PURL
- http://purl.flvc.org/fcla/dt/12871
- Subject Headings
- Weight training--Physiological aspects, Electromyography, Scapula
- Format
- Document (PDF)
- Title
- The Effects of Eccentric Phase Duration on Concentric Outcomes in the Squat and Bench Press.
- Creator
- Carzoli, Joseph P., 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 the effects of eccentric phase duration on concentric outcomes at 60% and 80% of one-repetition maximum (1RM) in the squat and bench press. Sixteen resistance-trained males completed four laboratory visits as follows: Day 1- 1RM testing; Day 2- establishment of normative eccentric durations; Days 3 and 4- randomized fast (0.75 times) or slow (2 times) eccentric duration variations, which were controlled by visual and auditory metronomes....
Show moreThe purpose of this research was to investigate the effects of eccentric phase duration on concentric outcomes at 60% and 80% of one-repetition maximum (1RM) in the squat and bench press. Sixteen resistance-trained males completed four laboratory visits as follows: Day 1- 1RM testing; Day 2- establishment of normative eccentric durations; Days 3 and 4- randomized fast (0.75 times) or slow (2 times) eccentric duration variations, which were controlled by visual and auditory metronomes. Eccentric duration was significantly and inversely correlated with average concentric velocity (ACV) at 60% (r = 0.408) and 80% (r = -0.477) of 1RM squat and at 100% of 1RM bench press. At 60% of 1RM squat, both fast and slow eccentric conditions produced greater (p<0.001) peak concentric velocity (PCV) than normative duration with fast also producing greater PCV than slow (p=0.044). Therefore, fast eccentric durations may benefit concentric velocity.
Show less - Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FA00013055
- Subject Headings
- Weight training--Physiological aspects., Weight lifting--Physiological aspects., Resistance Training--methods.
- 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
-
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
- Effects of GravitronRTM training on upper body strength in 11--13 year old students.
- Creator
- Howard, Nancy Joanne., Florida Atlantic University, Torok, Don
- Abstract/Description
-
This study examined the effects of using one or three sets of assisted pull-ups on the GravitronRTM 2000 AT unit by StairMaster RTM to increase upper body strength in adolescents. Fifty-four students participated in the study consisting of three upper body strength tests: pull-ups, flexed-arm hang, and push-ups. Forty-two subjects engaged in a 12-week training protocol on the GravitronRTM performing either one set (T1, N = 21), or 3 sets (T3, N = 21). Statistical analysis supported a...
Show moreThis study examined the effects of using one or three sets of assisted pull-ups on the GravitronRTM 2000 AT unit by StairMaster RTM to increase upper body strength in adolescents. Fifty-four students participated in the study consisting of three upper body strength tests: pull-ups, flexed-arm hang, and push-ups. Forty-two subjects engaged in a 12-week training protocol on the GravitronRTM performing either one set (T1, N = 21), or 3 sets (T3, N = 21). Statistical analysis supported a significant improvement in strength (p < 0.05) as assessed by the number of pull-ups completed for the T3 group. All other test results revealed nonsignificant changes. This type of training did not significantly increase the passing rate on the President's Council on Physical Fitness and Sports standards for strength or endurance. In conclusion, upper body strength was improved with 3 sets of assisted pull-up training after 12 weeks of training as shown by an increase in number of pull-ups performed.
Show less - Date Issued
- 2002
- PURL
- http://purl.flvc.org/fcla/dt/12882
- Subject Headings
- Bodybuilding for children, Teenagers--Exercise, Weight training for children, Muscle strength
- Format
- Document (PDF)
- Title
- ISSN Exercise & Sport Nutrition Review: Research & Recommendations.
- Creator
- Kreider, Richard B., Almada, Anthony L., Antonio, Jose, Broeder, Craig, Earnest, Conrad, Greenwood, Mike, Incledon, Thomas, Kalman, Douglas S., Kleiner, Susan M., Leutholtz, Brian, Lowery, Lonnie M., Mendel, Ron, Stout, Jeffrey R., Willoughby, Darryn S., Ziegenfuss, Tim
- Date Issued
- 2004-05-15
- PURL
- http://purl.flvc.org/fcla/dt/3327171
- Subject Headings
- Sport Nutrition, Dietary Supplements, Ergogenic Aids, Weight Gain, Weight Loss, Athletes --Nutrition, Athletic Performance, Athletic Performance --Physiology, Athletic Training --Standards, Exercise --Physiological Aspects, Exercise Physiology
- Format
- Document (PDF)
- Title
- Allometric scaling models of isometric biceps strength and the effects of resistance training.
- Creator
- Ryan, Eric Dobert., Florida Atlantic University, Zoeller, Robert F.
- Abstract/Description
-
The purpose of this study was to (1) derive gender-specific allometric scaling models using pre-training muscle cross-sectional area (CSA) and body mass (BM) as scaling variables, (2) test model appropriateness using regression diagnostics, and (3) cross-validate the models before and after training. A subset of FAMuSS study data (n = 319, females = 183, males = 136) was randomly split into two groups (A & B). Group A pre-training data for female BM, female CSA, male BM, and male CSA models...
Show moreThe purpose of this study was to (1) derive gender-specific allometric scaling models using pre-training muscle cross-sectional area (CSA) and body mass (BM) as scaling variables, (2) test model appropriateness using regression diagnostics, and (3) cross-validate the models before and after training. A subset of FAMuSS study data (n = 319, females = 183, males = 136) was randomly split into two groups (A & B). Group A pre-training data for female BM, female CSA, male BM, and male CSA models produced scaling exponents of 1.08, 0.44, 0.63, and 0.68, respectively. The female BM model was deemed inappropriate due to non-normal distribution of residuals. All other models met statistical criteria including normal distribution of residuals. Cross-validation to Group B pre-training data revealed that the models were appropriate, with the possible exception of male CSA model. Twelve weeks of resistance training did not alter the relation between BM, CSA, and muscular strength assessed by allometric scaling.
Show less - Date Issued
- 2005
- PURL
- http://purl.flvc.org/fcla/dt/13251
- Subject Headings
- Body composition--Measurement, Exercise--Physiological aspects, Physical fitness--Nutritional aspects, Sports--Physiological aspects, Weight training
- Format
- Document (PDF)