The RHE movement profile is preferable because it provides greater hip ROM with less angular stress and equivalent erector spinae activity. However, the RHE used less lumbar flexion, 20.4 ° compared with 31.1 ° for the HE. The RHE resulted in a significantly greater thigh to trunk ROM, 76.6 ° compared with 64.7 °. The RHE exercise generated greater peak (+129%), integrated (+63%), and mean (+78%) low back moment as compared to the HE exercise. A Wilcoxon signed-rank test ( p = 0.05) revealed significantly greater integrated activity of the biceps femoris and gluteus maximus during the HE exercise. Peak, average, and integrated muscle activity, low back moment, and ROM between the trunk and pelvis and the thigh and trunk were calculated. Equivalent loads were used for each exercise. Motion and muscle activation of the trunk and lower extremity were measured while 20 recreationally active individuals performed 2 sets of 10 repetitions of each exercise. J Strength Cond Res 33(8): 2053–2056, 2019-The purpose of this study was to compare activation of the erector spinae, gluteus maximus, and biceps femoris muscles, lower back extension moment, and lower extremity range of motion (ROM) between the reverse hyperextension (RHE) and hyperextension (HE) exercises.
Biomechanical comparison of the reverse hyperextension machine and the hyperextension exercise.
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