For older adults, a special workout mixing two-arm lifting with one-arm lowering builds muscle just as well as regular strength training.
See the scientific wording
In older adults, a resistance exercise protocol that pairs bilateral concentric movements with unilateral eccentric movements produces muscle growth (hypertrophy) comparable to that achieved with standard (conventional) resistance training movement practice.
Not tested yet
No study measured the main part of this claim. No part of this claim has been tested yet.
Not tested yet
No study measured the main part of this claim. No part of this claim has been tested yet.
Parts of this claim
In older adults, exercise pairing bilateral concentric movements with unilateral eccentric movements results in muscle growth.
Not testedNo studiesIn older adults, the muscle growth from exercise pairing bilateral concentric movements with unilateral eccentric movements is comparable to the muscle growth from more standard movement practice.
Not testedNo studies
Evidence is judged against each part on its own, so a study that tests one part never counts as a verdict on the whole claim.
What the research says
1 study reviewedSupporting (1)
Systematic Review With Meta-AnalysisMeta-analysis2025
A big review found that in older adults, lowering weights (eccentric) and lifting weights (concentric) build muscle about the same. This supports the idea that a special mix of two-arm lifting and one-arm lowering works as well as regular training, though the review didn't test that exact mix.
Contradicting (0)
No contradicting studies found yet
That doesn't mean it's settled — it just means no study has tested the opposite.
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Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting study
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