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Bret Contreras, Andrew D Vigotsky, Brad J Schoenfeld, Chris Beardsley, John Cronin
Background. The purpose of this study was to compare the peak electromyography (EMG) of the most commonly-used position in the literature, the prone bent-leg (90°) hip extension against manual resistance applied to the distal thigh (PRONE), to a novel position, the standing glute squeeze (SQUEEZE). Methods. Surface EMG electrodes were placed on the upper and lower gluteus maximus of thirteen recreationally active females (age = 28.9 years; height = 164 cm; body mass = 58.2 kg), before three maximum voluntary isometric contraction (MVIC) trials for each position were obtained in a randomized, counterbalanced fashion...
2015: PeerJ
Darryl J Cochrane, Michael C Harnett
The hip extensors are an important muscle group for sporting and functional movements, but assessing this muscle group for musculoskeletal dysfunction and strength testing has been performed in adult males and females as a prone, open-chain exercise, which provides little posture specificity for locomotive activities. Given the importance of closed-kinetic chain exercises for strength and rehabilitation requirements, there is an obvious need to assess hip extension but little is known about executing a closed-kinetic chain hip extension exercise for adolescents...
July 2015: Physiotherapy Theory and Practice
Matt J McAllister, Kelley G Hammond, Brian K Schilling, Lucas C Ferreria, Jacob P Reed, Lawrence W Weiss
The dorsal muscles of the lower torso and extremities have often been denoted the "posterior chain." These muscles are used to support the thoracic and lumbar spine and peripheral joints, including the hip, knee, and ankle on the dorsal aspect of the body. This study investigated the relative muscle activity of the hamstring group and selected surrounding musculature during the leg curl, good morning, glute-ham raise, and Romanian deadlift (RDL). Twelve healthy, weight-trained men performed duplicate trials of single repetitions at 85% 1-repetition maximum for each lift in random order, during which surface electromyography and joint angle data were obtained...
June 2014: Journal of Strength and Conditioning Research
No abstract text is available yet for this article.
1957: Quarterly Bulletin
K L Reichelt
No abstract text is available yet for this article.
April 30, 1991: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
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