The Claim
A 14-day period of unilateral lower limb immobilization using a knee brace at 60° flexion causes an average 9.6% reduction in quadriceps cross-sectional area and a 4.1% reduction in leg fat-free mass in healthy young adults.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Keeping one leg immobilized in a knee brace at 60° flexion for 14 days results in a 9.6% decrease in quadriceps muscle size and a 4.1% decrease in leg fat-free mass in healthy young adults.
See the scientific wording
A 14-day period of unilateral lower limb immobilization using a knee brace at 60° flexion results in an average 9.6% reduction in quadriceps cross-sectional area and a 4.1% reduction in leg fat-free mass in healthy young adults, confirming significant disuse atrophy under controlled conditions.
When a muscle is held still for days, the body stops building new muscle proteins and starts breaking down existing ones, causing the muscle to shrink and lose mass.
What the research says
1 studyAfter keeping one leg still in a brace for 14 days, healthy young adults lost about 10% of their thigh muscle and 4% of their leg muscle mass — and this study measured exactly that.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.