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Lower-volume muscle-damaging exercise protects against high-volume muscle-damaging exercise and the detrimental effects on endurance performance

Burt, Dean G.
; 
Lamb, Kevin L.
; 
Nicholas, Ceri
; 
Twist, Craig
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Affiliation
University of Chester; Staffordshire University
EPub Date
Publication Date
2015-02-21
Submitted Date
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Sport and Exercise Sciences
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Abstract
Purpose: This study examined whether lower-volume exercise-induced muscle damage (EIMD) performed 2 weeks before high-volume muscle-damaging exercise protects against its detrimental effect on running performance. Methods: Sixteen male participants were randomly assigned to a lower-volume (five sets of ten squats, n = 8) or high-volume (ten sets of ten squats, n = 8) EIMD group and completed baseline measurements for muscle soreness, knee extensor torque, creatine kinase (CK), a 5-min fixedintensity running bout and a 3-km running time-trial. Measurements were repeated 24 and 48 h after EIMD, and the running time-trial after 48 h. Two weeks later, both groups repeated the baseline measurements, ten sets of ten squats and the same follow-up testing (Bout 2). Results: Data analysis revealed increases in muscle soreness and CK and decreases in knee extensor torque 24–48 h after the initial bouts of EIMD. Increases in oxygen uptake ˙V O2 , minute ventilation ˙V E and rating of perceived exertion were observed during fixed-intensity running 24–48 h after EIMD Bout 1. Likewise, time increased and speed and ˙V O2 decreased during a 3-km running time-trial 48 h after EIMD. Symptoms of EIMD, responses during fixed-intensity and running time-trial were attenuated in the days after the repeated bout of high-volume EIMD performed 2 weeks after the initial bout. Conclusions: This study demonstrates that the protective effect of lower-volume EIMD on subsequent high-volume EIMD is transferable to endurance running. Furthermore, time-trial performance was found to be preserved after a repeated bout of EIMD.
Citation
Burt, D., Lamb, K.L., Nicholas, C., & Twist, C. (2015). Lower-volume muscle-damaging exercise protects against high-volume muscle-damaging exercise and the detrimental effects on endurance performance. European Journal of Applied Physiology, 115(7), 1523-1532
Publisher
Springer
Journal
European Journal of Applied Physiology
Research Unit
URI
http://hdl.handle.net/10034/620724
DOI
10.1007/s00421-015-3131-y
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PubMed Central ID
Type
Article
Language
en
Description
The final publication is available at Springer via http://dx.doi.org/10.1007/s00421-015-3131-y
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ISSN
1439-6319
EISSN
1439-6327
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https://link.springer.com/article/10.1007%2Fs00421-015-3131-y
https://link.springer.com/journal/421