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David’s research interest includes the following areas, Muscle mechanics, Eccentric exercise, Hamstring injuries.
Eccentric exercise
A branch of the study of lengthening muscle has been interest in eccentric exercise damage. This is the pain and tenderness in muscles typically felt one to two days after unaccustomed exercise involving lengthening of muscle while generating tension, known as eccentric exercise. Examples include climbing down mountains, running down hill, horse-riding and skiing, but not cycling, rowing or swimming, where active muscles are always shortening.
Such exercise is known to cause damage to cells, and the pain and recovery are resonably well understood. The mysteries have been why the damage occurs, and what changes with training to reduce the damage. I have suggested that it is the sarcomere non-uniformities that initiate the damage, and that training consists of growing extra sarcomeres in order to avoid working at long sarcomere length. Recent work has shown that decline exercised rats to have more sarcomeres in their fibres, and do generate optimum tension at longer muscle length. (Paper in review) Other work has shown extra series compliance after a series of stretches that is predicted by the theory in humans, whole muscles and single fibres, and shown the importance of muscle length in determining the extent of the damage.
The sensory consequences of ecentric exercise in terms of position and force sense have also been investigated.
研究兴趣
论文共 152 篇作者统计合作学者相似作者
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JOURNAL OF APPLIED PHYSIOLOGYno. 2 (2018): 388-399
JOURNAL OF SPINAL CORD MEDICINEno. 3.0 (2016): 335-343
Uwe Proske,David L. Morgan, Tamara Hew-Butler,Kevin G. Keenan,Roger M. Enoka,Sebastian Sixt, Josef Niebauer,John A. Hawley,Martin J. Gibala, Kathryn H. Myburgh, C. Capelli,P. Zamparo,
Encyclopedia of Exercise Medicine in Health and Diseasepp.269-272, (2012)
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