The Claim
Home-based progressive resistance training performed three times per week for three months significantly improves handgrip strength and sit-to-stand performance in dynapenic older adults with low protein intake, with large effect sizes, despite no measurable change in muscle mass, indicating that strength gains are driven by neuromuscular adaptations rather than hypertrophy.
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, performing progressive resistance training at home three times a week for three months increases hand strength and ability to stand from a chair without increasing muscle size, showing that the improvement comes from better nerve-to-muscle communication.
See the scientific wording
Home-based progressive resistance training performed three times per week for three months significantly improves handgrip strength and sit-to-stand performance in dynapenic older adults with low protein intake, with large effect sizes, despite no measurable change in muscle mass, indicating that strength gains are driven by neuromuscular adaptations rather than hypertrophy.
The nervous system learns to activate more muscle fibers at the same time and fire them faster, making the muscles produce more force even though they don't get bigger.
What the research says
1 studyOlder adults who did simple home strength exercises three times a week for three months got stronger at gripping and standing up—even though their muscles didn’t get bigger. This means their nerves got better at telling muscles when to work, not their muscles growing larger.
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.