The effects of strength training on endurance performance and muscle characteristics

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Bishop, David, Jenkins, David G, Mackinnon, Laurel T, McEniery, Michael and Carey, Michael F (1999) The effects of strength training on endurance performance and muscle characteristics. Medicine and Science in Sports and Exercise , 31 (6). pp. 886-891. ISSN 0195-9131 (print) 1530-0315 (online)


The effects of strength training on endurance performance and muscle characteristics. Med. Sci. Sports Exerc., Vol. 31, No. 6, pp. 886-891, 1999. Purpose: The purpose of this study was to determine the effects of resistance training on endurance performance and selected muscle characteristics of female cyclists. Methods: Twenty-one endurance-trained, female cyclists, aged 18-42 yr, were randomly assigned to either a resistance training (RT; N = 14) or a control group (CON; N = 7). Resistance training (2×·wk-1) consisted of five sets to failure (2-8 RM) of parallel squats for 12 wk. Before and immediately after the resistance-training period, all subjects completed an incremental cycle test to allow determination of both their lactate threshold (LT) and peak oxygen consumption [latin capital V with dot above]O2). In addition, endurance performance was assessed by average power output during a 1-h cycle test (OHT), and leg strength was measured by recording the subject's one repetition maximum (1 RM) concentric squat. Before and after the 12-wk training program, resting muscle was sampled by needle biopsy from m. vastus lateralis and analyzed for fiber type diameter, fiber type percentage, and the activities of 2-oxoglutarate dehydrogenase and phosphofructokinase. Results: After the resistance training program, there was a significant increase in 1 RM concentric squat strength for RT (35.9%) but not for CON (3.7%) (P < 0.05). However, there were no significant changes in OHT performance, LT, [latin capital V with dot above]O2, muscle fiber characteristics, or enzyme activities in either group (P > 0.05). Conclusion: The present data suggest that increased leg strength does not improve cycle endurance performance in endurance-trained, female cyclists.

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Item type Article
Official URL
Subjects Historical > FOR Classification > 1106 Human Movement and Sports Science
Current > Division/Research > College of Sports and Exercise Science
Keywords strength, O2, lactate threshold, Dmax, fiber, composition, fiber area, fiber diameter, 2-oxoglutarate dehydrogenase, PFK, women
Citations in Scopus 92 - View on Scopus
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