The Claim
In resistance-trained adults, performing single-set resistance training twice weekly for 8 weeks results in modest improvements in countermovement jump height, with no statistically significant difference between training to failure and training with two repetitions in reserve.
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 adults who do one set of weight training twice a week for eight weeks see a small increase in how high they can jump, whether they train until they can't do another rep or stop two reps before failure.
See the scientific wording
In resistance-trained adults, single-set resistance training performed twice weekly for 8 weeks leads to modest improvements in countermovement jump height, with no clear statistical evidence favoring either training to failure or training with two repetitions in reserve.
Doing resistance exercises twice a week for eight weeks makes the nervous system better at activating muscle fibers quickly and in sync, which lets the body generate more force in a short burst like a jump, whether the person stops before exhaustion or pushes until the last rep.
What the research says
1 studyFor people who already lift weights, doing just one set of exercises twice a week for 8 weeks can make you jump a little higher, whether you push until you can’t do another rep or stop two reps before failure — the study found no clear winner between the two methods.
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.