Effects Of High-intensity Strength Training On Muscle Strength Gain And Muscle Hypertrophy In Males And Females: A Meta-analysis: 776 Board #10 May 29 2:00 PM - 3:30 PM

High-intensity strength training is known to induce muscle strength gain and muscle hypertrophy. However, there are only few reports on the effects of high-intensity strength training on strength gain and muscle hypertrophy in females. PURPOSE:To conduct a systematic review of a meta-analysis to compare changes in strength gain and muscle hypertrophy between males and females after high intensity resistance training. METHODS: To carry out present review, English-language literature searches on PubMed and SPORTDiscus databases were conducted from all time points up until June 2018. Combinations of the following keywords were used as search terms: “training intensity,” “strength training,” “resistance training,” “strength,” “muscle hypertrophy.” RESULTS: Thirty-five articles were included in the meta-analysis. The standardized mean differences for muscle strength gain were 1.27 (95% confidence interval [CI], 0.99-1.55) and 1.16 (95% CI, 0.45-1.87), in males and females, respectively. The standardized mean differences for muscle hypertrophy were 0.73 (95% CI, 0.41-1.05) and 0.33 (95% CI, 0.07-0.60) in males and females, respectively. CONCLUSIONS: Our results suggested that high-intensity strength training induces muscle strength gain and increases muscle hypertrophy in both males and females. However, in the case of muscle hypertrophy, females tend to have lower standardized mean difference than males after high-intensity strength training.