The Claim

In overweight or obese adults, endurance training preserves approximately 0.51 kg more fat-free mass than calorie restriction alone, but this difference is not statistically significant, and endurance training is less effective than resistance-based training for preserving fat-free mass.

Source: Effects of Calorie Restriction With and Without Strength, Endurance or Mixed Training on Fat-Free and Skeletal Muscle Mass in Overweight or Obese Individuals-A Systematic Review With Pairwise Meta-Analysis and Network Meta-Analysis of Randomized Controlled Studies.

What the research says

Supports is higher

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

Supports
77score
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.

Quantitative
1 study reviewed
In plain English

In overweight or obese adults, endurance training results in 0.51 kg more fat-free mass retention compared to calorie restriction alone, but this difference is not statistically significant, and resistance training preserves more fat-free mass than endurance training.

See the scientific wording

Endurance training preserves approximately 0.51 kg more fat-free mass than calorie restriction alone in overweight or obese adults, but this effect does not reach statistical significance, suggesting it may be less effective than resistance-based training.

Why this might work

When muscles are stretched and pulled under load, special sensors in the muscle fibers trigger a chain reaction that tells the cell to build more muscle proteins. This keeps muscle from breaking down even when the body is low on energy. Endurance exercise does not create enough of this pulling force to trigger the same response strongly.

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: Effects of Calorie Restriction With and Without Strength, Endurance or Mixed Training on Fat-Free and Skeletal Muscle Mass in Overweight or Obese Individuals-A Systematic Review With Pairwise Meta-Analysis and Network Meta-Analysis of Randomized Controlled Studies.

    Doing cardio while dieting might help keep a little more muscle than dieting alone, but the study wasn’t sure enough to say for sure — and lifting weights worked even 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.