Stiffness of resting lumbar myofascia in healthy young subjects quantified using a handheld myotonometer and concurrently with surface electromyography monitoring

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• 作者：Kalyani Nair ; PhD^a ; ^{knair@bradley.edu" class="auth_mail" title="E-mail the corresponding author} ; Alfonse T. Masi ; MD ; DR.PH^b ; ^{amasi@uic.edu" class="auth_mail" title="E-mail the corresponding author} ; Brian J. Andonian ; MD^b ; ^{bandon2@uicomp.uic.edu" class="auth_mail" title="E-mail the corresponding author} ; Alexander J. Barry ; BS^a ; ^{abarry@mail.bradley.edu" class="auth_mail" title="E-mail the corresponding author} ; Brandon A. Coates ; BS^a ; ^{bcoates@mail.bradley.edu" class="auth_mail" title="E-mail the corresponding author} ; John Dougherty ; BS^a ; ^{jpdougherty@mail.bradley.edu" class="auth_mail" title="E-mail the corresponding author} ; Emily Schaefer ; BS^a ; ^{eschaefer@mail.bradley.edu" class="auth_mail" title="E-mail the corresponding author} ; Jacqueline Henderson ; PhD^a ; ^{jhenderson@bradley.edu" class="auth_mail" title="E-mail the corresponding author} ; Joseph Kelly ; PT ; MS^c ; ^{jpkelly@bradley.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：MyotonPro ; Biomechanics ; Lumbar ; Myofascial stiffness ; Passive property ; Surface electromyography
• 刊名：Journal of Bodywork and Movement Therapies
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：20
• 期：2
• 页码：388-396
• 全文大小：852 K

文摘

This study aimed to non-invasively quantify passive stiffness of superficial myofascia at a lower lumbar (L3-L4) anatomical level in young healthy male and female subjects and investigate its possible morphological variation. Resting prone lumbar myofascial measurements were quantified using MyotonPro^® and statistically analyzed in 20 young healthy individuals over 3-weekly intervals, concurrently with surface electromyography (sEMG). Averaged mean ± SE stiffness (Newton/meter) over three weeks was significantly (p < 0.001) greater in males (247.8 ± 11.3) than females (208.4 ± 11.3), on the right (237.7 ± 12.8) than left sides (218.5 ± 12.3), at 10-min (231.4 ± 9.1) than initial baseline (224.8 ± 9.1) values. A polymorphism of stiffness values in 10 male and 10 female subjects was suggested by box plot analyses of the 3 weekly measurements and greater inter-individual than intra-individual variances. Greater knowledge of lumbar myofascial stiffness can improve understanding of their contributions in health and chronic low back disorders.