Lifters who did a medium amount of weightlifting exercises for 10 weeks got stronger in their main lifts than those who did either much less or much more — especially in the snatch, where the medium group improved the most.
Scientific Claim
Moderate-volume resistance training (2,481 repetitions over 10 weeks) results in greater strength gains in the snatch, clean & jerk, and squat exercises among experienced junior weightlifters compared to low-volume (1,923 repetitions) or high-volume (3,030 repetitions) training, with the snatch showing the most significant advantage over low volume (6.1% vs. 3.7% increase, p = 0.015).
Original Statement
“The MVG showed a significant increase for the Sn, C&J, and Sq exercises (6.1, 3.7, and 4.2%, respectively, p < 0.01), whereas in the LVG and HVG, the increase took place only with the C&J exercise (3.7 and 3%, respectively, p < 0.05) and the Sq exercise (4.6%, p < 0.05, and 4.8%, p < 0.01, respectively). The increase in the Sn exercise for the MVG was significantly higher than in the LVG (p = 0.015). Calculation of effect sizes showed higher strength gains in the MVG than in the HVG or LVG.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
probability
Can suggest probability/likelihood
Assessment Explanation
The study is an RCT with randomization, permitting causal language under GRADE rules. However, blinding is unknown and outcomes are limited to strength — 'probability' verb strength is conservative and appropriate given potential performance bias.
More Accurate Statement
“Moderate-volume resistance training (2,481 repetitions over 10 weeks) may result in greater strength gains in the snatch, clean & jerk, and squat exercises among experienced junior weightlifters compared to low-volume (1,923 repetitions) or high-volume (3,030 repetitions) training, with the snatch showing the most significant advantage over low volume (6.1% vs. 3.7% increase, p = 0.015).”
Evidence from Studies
Supporting (1)
MODERATE RESISTANCE TRAINING VOLUME PRODUCES MORE FAVORABLE STRENGTH GAINS THAN HIGH OR LOW VOLUMES DURING A SHORT‐TERM TRAINING CYCLE
This study found that weightlifters who did a medium amount of lifting got stronger in their main lifts—especially the snatch—better than those who did too little or too much, proving that more isn’t always better.