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Impact of testing strategy on expression of upper-body work capacity and one-repetition maximum prediction after resistance training in college-aged men and women.
J Strength Cond Res. 2011 Oct; 25(10):2796-807.JS

Abstract

The purpose of this study was to assess the effect of resistance training on upper-body muscular strength and the expression of work capacity and muscular endurance. In addition, a training-induced change in the relationship between muscular strength and endurance was assessed by testing changes in the accuracy of using endurance repetitions to predict 1 repetition maximum (1RM) bench press before and after training. College-aged men (n = 85) and women (n = 62) completed a 12-week linear periodization resistance training program. Before and after training, the subjects were assessed for 1RM and repetitions to fatigue (RTFs) with a submaximal load. After pretraining 1RM determination, the subjects were randomly assigned to perform RTFs at 65% 1RM (n = 74) or 90% 1RM (n = 73). Pretraining and posttraining RTFs were conducted at the same respective % 1RM. Work capacity was determined from repetition weight × RTF. After training, there was a significant increase in 1RM in both men (∼14%) and women (∼23%). Posttraining RTF was not different from pretraining RTF at 65 %1RM (18.2 ± 5.1 and 19.0 ± 6.0, respectively) but was significantly reduced in the 90% 1RM group (6.1 ± 3.6 vs. 4.5 ± 2.7, respectively). Likewise, there was a differential effect of training on the expression of work capacity, which increased in the 65 % 1RM group (123 ± 155 kg-reps) but decreased in the 90% 1RM group (-62 ± 208 kg-reps); the effect was independent of gender within each testing group. In conclusion, the changes in muscular strength associated with resistance training produced an increase in work capacity when tested with a 65 % 1RM load without a change in endurance. In contrast, both work capacity and endurance decreased when tested with 90% 1RM. Thus, the impact of strength training on work capacity and muscle endurance is specific to the load at which endurance testing is performed.

Authors+Show Affiliations

Human Performance Laboratory, Truman State University, Kirksville, Missouri, USA. jmayhew@truman.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

21904231

Citation

Mayhew, Jerry L., et al. "Impact of Testing Strategy On Expression of Upper-body Work Capacity and One-repetition Maximum Prediction After Resistance Training in College-aged Men and Women." Journal of Strength and Conditioning Research, vol. 25, no. 10, 2011, pp. 2796-807.
Mayhew JL, Brechue WF, Smith AE, et al. Impact of testing strategy on expression of upper-body work capacity and one-repetition maximum prediction after resistance training in college-aged men and women. J Strength Cond Res. 2011;25(10):2796-807.
Mayhew, J. L., Brechue, W. F., Smith, A. E., Kemmler, W., Lauber, D., & Koch, A. J. (2011). Impact of testing strategy on expression of upper-body work capacity and one-repetition maximum prediction after resistance training in college-aged men and women. Journal of Strength and Conditioning Research, 25(10), 2796-807. https://doi.org/10.1519/JSC.0b013e31822dcea0
Mayhew JL, et al. Impact of Testing Strategy On Expression of Upper-body Work Capacity and One-repetition Maximum Prediction After Resistance Training in College-aged Men and Women. J Strength Cond Res. 2011;25(10):2796-807. PubMed PMID: 21904231.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of testing strategy on expression of upper-body work capacity and one-repetition maximum prediction after resistance training in college-aged men and women. AU - Mayhew,Jerry L, AU - Brechue,William F, AU - Smith,Abbie E, AU - Kemmler,Wolfgang, AU - Lauber,Dirk, AU - Koch,Alexander J, PY - 2011/9/10/entrez PY - 2011/9/10/pubmed PY - 2012/2/9/medline SP - 2796 EP - 807 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 25 IS - 10 N2 - The purpose of this study was to assess the effect of resistance training on upper-body muscular strength and the expression of work capacity and muscular endurance. In addition, a training-induced change in the relationship between muscular strength and endurance was assessed by testing changes in the accuracy of using endurance repetitions to predict 1 repetition maximum (1RM) bench press before and after training. College-aged men (n = 85) and women (n = 62) completed a 12-week linear periodization resistance training program. Before and after training, the subjects were assessed for 1RM and repetitions to fatigue (RTFs) with a submaximal load. After pretraining 1RM determination, the subjects were randomly assigned to perform RTFs at 65% 1RM (n = 74) or 90% 1RM (n = 73). Pretraining and posttraining RTFs were conducted at the same respective % 1RM. Work capacity was determined from repetition weight × RTF. After training, there was a significant increase in 1RM in both men (∼14%) and women (∼23%). Posttraining RTF was not different from pretraining RTF at 65 %1RM (18.2 ± 5.1 and 19.0 ± 6.0, respectively) but was significantly reduced in the 90% 1RM group (6.1 ± 3.6 vs. 4.5 ± 2.7, respectively). Likewise, there was a differential effect of training on the expression of work capacity, which increased in the 65 % 1RM group (123 ± 155 kg-reps) but decreased in the 90% 1RM group (-62 ± 208 kg-reps); the effect was independent of gender within each testing group. In conclusion, the changes in muscular strength associated with resistance training produced an increase in work capacity when tested with a 65 % 1RM load without a change in endurance. In contrast, both work capacity and endurance decreased when tested with 90% 1RM. Thus, the impact of strength training on work capacity and muscle endurance is specific to the load at which endurance testing is performed. SN - 1533-4287 UR - https://www.unboundmedicine.com/medline/citation/21904231/Impact_of_testing_strategy_on_expression_of_upper_body_work_capacity_and_one_repetition_maximum_prediction_after_resistance_training_in_college_aged_men_and_women_ L2 - http://dx.doi.org/10.1519/JSC.0b013e31822dcea0 DB - PRIME DP - Unbound Medicine ER -