The Claim
In resistance-trained athletes, 12 weeks of accentuated eccentric loading squat training increases strength endurance by 28.6%, squat jump power by 7.3%, and countermovement jump power by 4.4%.
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.
Resistance-trained athletes who performed 12 weeks of squat training with extra emphasis on the lowering phase showed a 28.6% increase in strength endurance, a 7.3% increase in squat jump power, and a 4.4% increase in countermovement jump power.
See the scientific wording
In resistance-trained athletes, 12 weeks of accentuated eccentric loading squat training improves strength endurance (28.6%) and jump power (squat jump 7.3%, countermovement jump 4.4%), suggesting that eccentric-focused training enhances muscular endurance and explosive performance beyond maximal strength.
When muscles are stretched under heavy load, the sensors inside the muscle detect the stretch more strongly and send faster signals to the spinal cord and brain. This makes the nervous system activate more muscle fibers with each contraction, allowing the muscle to produce force for longer and explode faster without getting tired as quickly.
What the research says
1 studyThis study found that doing squats with a slow, heavy lowering phase for 3 months made athletes better at doing many reps and jumping higher — exactly what the claim says.
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.