Effect of Load on Muscle Activity, Kinematics, and Force Production During the Reverse Hyperextension Exercise

Autor:	Michael A, Lawrence, Matthew J, Somma, Brian T, Swanson
Rok vydání:	2022
Předmět:	Male Electromyography Rehabilitation Biophysics Humans Female Hamstring Muscles Orthopedics and Sports Medicine Muscle Skeletal Exercise Biomechanical Phenomena
Zdroj:	Journal of Applied Biomechanics. 38:336-345
ISSN:	1543-2688 1065-8483
DOI:	10.1123/jab.2022-0046
Popis:	The reverse hyperextension exercise is used to strengthen posterior chain musculature without axially loading the spine; however, there are no suggestions for loading. Twenty recreationally active individuals (13 males and 7 females; aged 25.4 [2.5] y; height 1.76 [0.09] m; mass 79.3 [15.8] kg) performed 2 sets of 10 repetitions with 50%, 100%, and 150% of bodyweight. Surface electromyography measured erector spinae, gluteus maximus, and biceps femoris activity. Motions of the trunk, lower extremities, and reverse hyperextension exercise pendulum were tracked. A 1-way repeated-measures analysis of variance was used to analyze differences. Few differences were found between 100% and 150% loads; however, heavier loads resulted in increased hip (5.0°) and trunk (4.0°) flexion compared with the 50% load. Similar patterns emerged for peak and integrated muscle activity, with erector spinae and gluteus maximus activity greater in the 100% and 150% loads than in the 50% load, and biceps femoris activation increasing as load increased. Peak force significantly (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::425aff6ad4c3e2d9deae1f57e63f09c1 https://doi.org/10.1123/jab.2022-0046 Zobrazit plný text záznamu