The Claim

Doing more weight training raises levels of a protein called Frizzled-1 in older people’s muscles, no matter whether they gain muscle or not.

Source: Molecular signatures underlying heterogenous hypertrophy responsiveness to resistance training in older men and women: a within-subject design.

What the research says

Supports is higher

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

Supports
41score
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

Doing more weight training raises levels of a protein called Frizzled-1 in older people’s muscles, no matter whether they gain muscle or not.

See the scientific wording

Higher resistance training volume increases total protein expression of Frizzled-1 in older adults, regardless of their hypertrophy response category.

What the research says

1 study

  1. Study: Molecular signatures underlying heterogenous hypertrophy responsiveness to resistance training in older men and women: a within-subject design.

    Even if older people didn’t get bigger muscles from lifting weights, doing more sets still raised a specific protein called Frizzled-1 in their muscles — no matter how much they grew.

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.