The Effect of Muscular Endurance on Running Economy

Hayes, Phil, French, Duncan and Thomas, Kevin (2011) The Effect of Muscular Endurance on Running Economy. Journal of Strength and Conditioning Research, 25 (9). pp. 2464-2469. ISSN 1064-8011

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Official URL: http://dx.doi.org/10.1519/JSC.0b013e3181fb4284

Abstract

The effect of muscular endurance on running economy. J Strength Cond Res 25(9): 2464-2469, 2011-The purpose of this study was to examine the relationship between fatigue-induced changes in running economy (RE) and muscular strength endurance (MSE). Ten well-trained male runners completed 2 runs of the same energy expenditure at 20%[DELTA] [latin capital V with dot above]O2 below LT. In the middle of the experimental condition (high intensity exercise [HIE]), there was a 4-minute block at s[latin capital V with dot above]O2max. The aim of the 4-minute block was to increase RE through fatigue, without inducing exhaustion. The MSE of hip extensors (HEs) and knee flexors (KFs) was assessed by 2 20-second eccentric bouts on an isokinetic dynamometer at 180[degrees][middle dot]s-1. The RE increased after HIE compared to the control condition. Partial correlations found the increase in RE was strongly related with KF MSE (r = -0.709-0.798; p = 0.03-0.01). Greater MSE appeared to confer a fatigue resistant effect, resulting in a smaller increase in RE. The underlying mechanism of the fatigue resistant effect remains to be elucidated. Conditioning work focusing on augmenting eccentric muscular endurance of the legs may offer beneficial adaptations that promote fatigue resistance.

Item Type: Article
Uncontrolled Keywords: distance running, oxygen cost of running, maximal aerobic speed
Subjects: C600 Sports Science
Department: Faculties > Health and Life Sciences > School of Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Ay Okpokam
Date Deposited: 15 Dec 2011 15:23
Last Modified: 10 Aug 2015 11:39
URI: http://nrl.northumbria.ac.uk/id/eprint/4194

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