Scott J Dankel1, Brittany R Counts1, Brian E Barnett1, Samuel L Buckner1, Takashi Abe2, Jeremy P Loenneke1. 1. Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, USA. 2. National Institute of Fitness and Sports, Kanoya, Kagoshima, Japan.
Abstract
INTRODUCTION: Large increases in 1-repetition maximum (1RM) strength have been demonstrated from repeated testing, but it is unknown whether these increases can be augmented by resistance training. METHODS: Five trained individuals performed a 1RM test and maximal voluntary isometric contraction (MVC) for unilateral elbow flexion exercise on 1 arm (testing arm), while the other arm performed a 1RM test and MVC, in addition to 3 sets of exercise (70% 1RM) (training arm), for 21 straight days. RESULTS: Although only the training arm had increased muscle thickness [mean 0.28 cm, 95% confidence interval (CI) 0.22-0.33 cm], 1RM strength increased similarly in the training (2.2 kg, 95% CI 0.9-3.4 kg; P = 0.008) and testing (1.9 kg, 95% CI 0.5-3.2 kg; P = 0.019) arms. CONCLUSION: Increases in 1RM strength from resistance training are related to the specificity of exercise and are likely driven by mechanisms other than muscle growth. Muscle Nerve 56: 307-314, 2017.
INTRODUCTION: Large increases in 1-repetition maximum (1RM) strength have been demonstrated from repeated testing, but it is unknown whether these increases can be augmented by resistance training. METHODS: Five trained individuals performed a 1RM test and maximal voluntary isometric contraction (MVC) for unilateral elbow flexion exercise on 1 arm (testing arm), while the other arm performed a 1RM test and MVC, in addition to 3 sets of exercise (70% 1RM) (training arm), for 21 straight days. RESULTS: Although only the training arm had increased muscle thickness [mean 0.28 cm, 95% confidence interval (CI) 0.22-0.33 cm], 1RM strength increased similarly in the training (2.2 kg, 95% CI 0.9-3.4 kg; P = 0.008) and testing (1.9 kg, 95% CI 0.5-3.2 kg; P = 0.019) arms. CONCLUSION: Increases in 1RM strength from resistance training are related to the specificity of exercise and are likely driven by mechanisms other than muscle growth. Muscle Nerve 56: 307-314, 2017.
Authors: Scott J Dankel; Kevin T Mattocks; Matthew B Jessee; Samuel L Buckner; J Grant Mouser; Jeremy P Loenneke Journal: Eur J Appl Physiol Date: 2017-08-03 Impact factor: 3.078
Authors: Samuel L Buckner; Scott J Dankel; Kevin T Mattocks; Matthew B Jessee; J Grant Mouser; Jeremy P Loenneke Journal: Eur J Appl Physiol Date: 2017-04-22 Impact factor: 3.078
Authors: Scott J Dankel; Samuel L Buckner; Matthew B Jessee; J Grant Mouser; Kevin T Mattocks; Takashi Abe; Jeremy P Loenneke Journal: Sports Med Date: 2018-01 Impact factor: 11.136
Authors: Jozo Grgic; Brad J Schoenfeld; Timothy B Davies; Bruno Lazinica; James W Krieger; Zeljko Pedisic Journal: Sports Med Date: 2018-05 Impact factor: 11.136