Regular physical training helps people keep or increase their muscle mass and strength over time.
See the scientific wording
Regular physical training helps maintain or increase skeletal muscle mass and strength; the magnitude of effect, specific training dosage, and duration were not reported.
Not tested yet
Randomized trialsNo 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
Regular physical training involves use of skeletal muscle.
Not testedNo studiesRegular physical training helps maintain skeletal muscle mass.
Not testedNo studiesRegular physical training helps increase skeletal muscle mass.
Not testedNo studiesRegular physical training helps maintain skeletal muscle strength.
Not testedNo studiesRegular physical training helps increase skeletal muscle strength.
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
2 studies reviewedSupporting (2)
Randomized Controlled TrialHuman2024
In older women, doing resistance exercise increased muscle strength and lean mass, which matches the claim that regular muscle training helps people keep or build muscle.
Randomized Controlled TrialHuman2019
In older adults with early muscle loss, a 10-week resistance training program helped them gain about 1.1 kg of lean muscle and improved some strength measures. This supports the idea that regular physical training helps maintain or build muscle mass and strength.
Contradicting (0)
No contradicting studies found yet
That doesn't mean it's settled — it just means no study has tested the opposite.
Quality-weighted scoring: we follow the GRADE framework — each study is rated High, Moderate, Low, or Very Low based on study design, methodology rigor, and risk of bias. A single high-quality RCT can outweigh several weaker observational studies.
Scores reflect study quality, not just count.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
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