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SCIENTIFIC WORLD JOURNAL
Volume -, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2013/189149
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- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo
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Running economy (RE), defined as the energy demand for a given velocity of submaximal running, has been identified as a critical factor of overall distance running performance. Plyometric and resistance trainings, performed during a relatively short period of time (similar to 15-30 days), have been successfully used to improve RE in trained athletes. However, these exercise types, particularly when they are unaccustomed activities for the individuals, may cause delayed onset muscle soreness, swelling, and reduced muscle strength. Some studies have demonstrated that exercise-induced muscle damage has a negative impact on endurance running performance. Specifically, themuscular damage induced by an acute bout of downhill running has been shown to reduce RE during subsequentmoderate and high-intensity exercise (>65% VO(2)max). However, strengthexercise (i.e., jumps, isoinertial and isokinetic eccentric exercises) seems to impair RE only for subsequent high-intensity exercise (similar to 90% VO(2)max). Finally, a single session of resistance exercise or downhill running (i.e., repeated bout effect) attenuates changes in indirect markers of muscle damage and blunts changes in RE.
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