The Claim
Deadlifts cause more persistent reductions in braking rate of force development and modified reactive strength index at 24 hours post-exercise than back squats in resistance-trained adults, indicating a delayed impairment in neuromuscular reactivity and stretch-shortening cycle efficiency.
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.
After exercise, deadlifts lead to greater and longer-lasting decreases in the ability to generate force quickly and respond to rapid movements compared to back squats in trained individuals, 24 hours after the workout.
See the scientific wording
Deadlifts induce more persistent reductions in braking rate of force development (RFD) and modified reactive strength index (RSImod) at 24 hours post-exercise compared to back squats in resistance-trained adults, suggesting a delayed impairment in neuromuscular reactivity and stretch-shortening cycle efficiency.
After heavy deadlifts, muscles accumulate fatigue chemicals that slow down their ability to generate force quickly, and the brain reduces its signals to the muscles. This makes the body less able to use the spring-like action of muscles and tendons during quick movements, so the braking phase of a jump takes longer to recover, and the body cannot respond rapidly even when jump height returns.
What the research says
1 studyAfter heavy deadlifts, athletes take longer to recover their quick, spring-like leg response when landing from a jump—even if their jump height comes back—compared to after squats. This means deadlifts mess with your body’s quick reaction ability for longer.
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.