September 1, 1995Medicine & Science in Sports & Exercise

Muscle damage following repeated bouts of high force eccentric exercise

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Why the study?

Does performing repeated bouts of eccentric exercise when muscles are not recovered exacerbate muscle damage in nonweight-trained males?

Population

12 nonweight-trained males, mean age 21.7 +/- 2.4 years

Design

Other

Follow-up

9 days

Authors

KNKazunori NosakaEdith Cowan University PCPriscilla M. ClarksonShinshu University Hospital

Discussion

Member takes

Implication

Eccentric bouts at 3-6 days may proceed without added harm; leaves open optimal protocols for trained athletes.

Structured PICO

Does performing repeated bouts of eccentric exercise when muscles are not recovered exacerbate muscle damage in nonweight-trained males?

Population

12 nonweight-trained males, mean age 21.7 +/- 2.4 years

Intervention

Three sets of 10 eccentric actions of the elbow flexors using a dumbbell at 80% preexercise maximal isometric force, repeated 3 and 6 days after the first exercise

Outcome

Muscle damage assessed by maximal isometric force, relaxed and flexed elbow joint angle, muscle soreness, plasma creatine kinase, glutamic-oxaloacetic transaminase activities, and ultrasound echointensitysurrogate

Performing strenuous eccentric exercise with unrecovered muscles does not exacerbate muscle damage or impair the repair process.

Cite This Study

Nosaka et al. (1995) studied this question.

synapsesocial.com/papers/69dcbb64a5c75be4cfe53a9e https://doi.org/10.1249/00005768-199509000-00005

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