The Claim
Nutritional supplementation alone, without resistance training, does not significantly improve muscle strength or physical function in dynapenic older adults with low protein intake, except for a moderate improvement in gait speed.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In older adults with muscle weakness and low protein intake, taking nutritional supplements without doing strength training does not improve muscle strength or overall physical function, except for a small increase in walking speed.
See the scientific wording
Nutritional supplementation alone does not significantly improve muscle strength or physical function in dynapenic older adults with low protein intake beyond a moderate improvement in gait speed, suggesting that protein or calorie supplementation without resistance training has limited functional benefits in this population.
Without resistance training, muscles do not experience enough force to trigger new protein building or activate more muscle fibers, so strength and function stay the same even when protein intake increases. Only walking speed improves slightly because it requires less force and uses existing muscle patterns.
What the research says
1 studyGiving protein shakes to older adults with weak muscles only helped them walk a tiny bit faster, but didn’t make them stronger in their hands or better at standing up from a chair. Only lifting weights helped them get stronger.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.