The Claim

In healthy elderly men participating in concurrent training, increases in muscle hypertrophy, as assessed by quadriceps femoris thickness, occur only when training volume is sufficient, irrespective of whether repetitions are performed to concentric failure.

Source: Repetitions to failure versus not to failure during concurrent training in healthy elderly men: A randomized clinical trial

What the research says

Supports is higher

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

Supports
47score
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

For older guys doing strength and cardio workouts, their leg muscles only get bigger if they do enough total exercise—how close they push themselves to failure during each set doesn't matter, as long as the overall amount of work is high enough.

See the scientific wording

In healthy elderly men undergoing concurrent training, muscle hypertrophy—as measured by quadriceps femoris thickness—increases only when training volume is sufficient, regardless of whether repetitions are performed to concentric failure.

What the research says

1 study
  1. Study: Repetitions to failure versus not to failure during concurrent training in healthy elderly men: A randomized clinical trial

    The study shows that older men’s leg muscles grow when they do enough total reps, whether or not they push to exhaustion. It’s the amount of work that matters, not how close they get to failure.

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

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Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.