The Claim
In heavy resistance-trained male youth rugby league players, higher-volume hypertrophy training is associated with a modest decline in drop jump performance (−4.1 ± 7.2%; ES = 0.7) compared to maximal strength training, although the use of two different force plate systems introduces technical limitations that reduce confidence in this finding.
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.
Young male rugby players who do high-volume muscle-building workouts might see a small drop in their jump performance compared to those doing heavy strength training — but the results aren't super clear because different equipment was used.
See the scientific wording
In heavy resistance-trained male youth rugby league players, higher-volume hypertrophy training is associated with a modest decline in drop jump performance (−4.1 ± 7.2%; ES = 0.7) compared to maximal strength training, though technical limitations due to use of two different force plate systems reduce confidence in this finding.
What the research says
1 studyThe study found that when young rugby players switched from strength training to higher-volume muscle-building training, their jump performance dropped slightly, just like the claim says, though the measurement had some technical issues.
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.