TY - JOUR T1 - Push-Ups vs. Bench Press Differences in Repetitions and Muscle Activation between Sexes. AU - Alizadeh,Shahab, AU - Rayner,Machel, AU - Mahmoud,M Mamdouh Ibrahim, AU - Behm,David G, Y1 - 2020/05/01/ PY - 2019/12/02/received PY - 2020/01/21/accepted PY - 2020/5/12/entrez PY - 2020/5/12/pubmed PY - 2021/1/20/medline KW - Electromyography KW - females KW - gender KW - muscle endurance KW - resistance training SP - 289 EP - 297 JF - Journal of sports science & medicine JO - J Sports Sci Med VL - 19 IS - 2 N2 - Push-ups are an ubiquitous resistance training exercise. While exhibiting a relatively similar upper body motion to the bench press, there are substantial differences in repetitions when employing similar relative loads. The objective was to examine sex-related differences in repetitions and muscle activation associated with push-ups and bench press exercises. Twenty resistance-trained participants (10 men [22 ± 6.1 years] and 10 [24 ± 5.7 years] women) performed maximum push-up and bench press repetitions with loads relative to the body mass during a push-up. Electromyographic (EMG) electrodes were positioned on the middle and anterior deltoids, triceps and biceps brachii, and pectoralis major muscles and their relative (normalized to a maximum voluntary contraction) activity was compared between the two exercises performed to task failure. Both females (3.5 ± 3.9 vs.15.5 ± 8.0 repetitions; p = 0.0008) and males (12.0 ± 6.3 vs. 25.6 ± 5.2 repetitions; p < 0.0001) performed 77.4% and 53.1% less bench press than push-up repetitions respectively. Males significantly exceeded females with both push-ups (p = 0.01) and bench press (p = 0.004) repetitions. Significant linear regression equations were found for females (r2 = 0.55; p = 0.03), and males (r2 = 0.66; p < 0.0001) indicating that bench press repetitions increased 0.36 and 0.97 for each push-up repetition for females and males respectively. Triceps (p = 0.002) and biceps brachii (p = 0.03) EMG mean amplitude was significantly lower during the push-up concentric phase, while the anterior deltoid (p = 0.03) exhibited less activity during the bench press eccentric phase. The sex disparity in repetitions during these exercises indicates that a push-up provides a greater challenge for women than men and regression equations may be helpful for both sexes when formulating training programs. SN - 1303-2968 UR - https://www.unboundmedicine.com/medline/citation/32390722/Push_Ups_vs__Bench_Press_Differences_in_Repetitions_and_Muscle_Activation_between_Sexes_ DB - PRIME DP - Unbound Medicine ER -