The Claim

Both free-weight and machine-based training significantly improve maximal strength, hypertrophy, and jump performance from baseline in healthy adults, indicating that either modality is effective for achieving general fitness and muscular adaptations.

Source: Effect of free-weight vs. machine-based strength training on maximal strength, hypertrophy and jump performance – a systematic review and meta-analysis

What the research says

Supports is higher

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

Supports
52score
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

Whether you lift weights the old-fashioned way or use machines, both ways will help you get stronger, build muscle, and jump higher — so you can pick whichever you like better.

See the scientific wording

Both free-weight and machine-based training significantly improve maximal strength, hypertrophy, and jump performance from baseline, indicating that either modality is effective for achieving general fitness and muscular adaptations in healthy adults.

What the research says

1 study

  1. Study: Effect of free-weight vs. machine-based strength training on maximal strength, hypertrophy and jump performance – a systematic review and meta-analysis

    Both free weights and machines helped people get stronger, build muscle, and jump higher — neither was clearly better than the other. So you can pick whichever you like better.

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

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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