The Claim

Resistance training alone significantly improved muscle strength, muscle thickness, and thigh lean mass in older men, regardless of HMB supplementation, demonstrating that exercise is the primary driver of muscle adaptation in this population.

Source: A double-blind placebo controlled trial into the impacts of HMB supplementation and exercise on free-living muscle protein synthesis, muscle mass and function, in older adults

What the research says

Supports is higher

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

Supports
60score
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 men, doing resistance exercises such as weightlifting increased muscle strength, muscle size, and lean tissue in the thighs, even without taking HMB supplements, indicating that the exercise itself was the main factor driving these changes.

See the scientific wording

Resistance training alone significantly improved muscle strength, muscle thickness, and thigh lean mass in older men, regardless of HMB supplementation, demonstrating that exercise is the primary driver of muscle adaptation in this population.

What the research says

1 study

  1. Study: A double-blind placebo controlled trial into the impacts of HMB supplementation and exercise on free-living muscle protein synthesis, muscle mass and function, in older adults

    The study found that older men got stronger and built more muscle just from doing weight training—even without taking any special supplement. The supplement didn’t make them any stronger or thicker than those who didn’t take it, so the exercise itself was the real hero.

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.