Analysis Version
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Back to Study: Eccentric exercise per se does not affect muscle d...
causal
Analysis v1
58
Pro
0
Against

You can get stronger by doing hard exercises just once a week—even if they’re tough—without your muscles staying damaged or sore.

Scientific Claim

Isokinetic resistance training performed at maximal effort once weekly for 10 weeks improves muscle strength in untrained men without inducing persistent muscle damage, regardless of contraction type.

Original Statement

“Twenty-four men... performed 10 weeks of isokinetic resistance exercise (one session/week of 75 maximal knee extensors actions)... no alterations in muscle damage biomarkers were observed after either exercise protocol... strength gains... were comparable between the two groups.”

From study:Eccentric exercise per se does not affect muscle damage biomarkers: early and late phase adaptations

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

definitive

Can make definitive causal claims

Assessment Explanation

The RCT design with direct measurement of strength and biomarkers supports definitive causal language for this outcome.

Evidence from Studies

Supporting (1)

58
58

Eccentric exercise per se does not affect muscle damage biomarkers: early and late phase adaptations

Randomized Controlled Trial
Human
2021 Feb

After doing one tough workout a week for 10 weeks, untrained men got stronger without their muscles staying sore or damaged—whether they pushed their muscles to lengthen or shorten. The initial soreness went away after a few sessions.

Contradicting (0)

0
No contradicting evidence found

Source Study

Eccentric exercise per se does not affect muscle damage biomarkers: early and late phase adaptations

Score: 58
DOI: 10.1007/s00421-020-04528-w

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