The Claim

Resistance training improves gait speed in dynapenic older adults with low protein intake with large effect sizes, while nutritional supplementation alone produces only a moderate improvement in gait speed.

Source: Independent and combined effect of home-based progressive resistance training and nutritional supplementation on muscle strength, muscle mass and physical function in dynapenic older adults with low protein intake: A randomized controlled trial.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
69score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

In older adults with muscle weakness and low protein intake, resistance training leads to greater improvements in walking speed than nutritional supplements alone.

See the scientific wording

Resistance training improves gait speed in dynapenic older adults with low protein intake, with large effect sizes, while nutritional supplementation alone produces only a moderate improvement, suggesting that movement-based training is more effective than dietary intervention for enhancing walking ability.

Why this might work

When older adults with weak muscles and low protein intake lift weights, their nerves send stronger signals to their muscles, making the muscles contract harder and faster. This increases the power of each step, allowing them to walk faster.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Independent and combined effect of home-based progressive resistance training and nutritional supplementation on muscle strength, muscle mass and physical function in dynapenic older adults with low protein intake: A randomized controlled trial.

    In older adults who are weak and eat little protein, lifting weights made them walk much faster, but just giving them protein supplements only helped a little. So moving your body works better than just eating more protein to improve walking.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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