کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6210254 1604184 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue-induced glenohumeral and scapulothoracic kinematic variability: Implications for subacromial space reduction
ترجمه فارسی عنوان
تغییرات سینماتیک گلنوهومرال و اسکاپولوتوراکسی ناشی از خستگی: پیامدهای کاهش فضای زیرابرومی
کلمات کلیدی
شانه، سندروم مبهم ساباکرومی، خستگی، ترجمه هوم هومرال، جهت گیری مچ پا،
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی

Superior humeral head translation and scapula reorientation can reduce the subacromial space. While these kinematic abnormalities exist in injured populations, the effect of muscle fatigue is unclear. Additionally, these mechanisms were typically studied independently, thereby neglecting potential covariance. This research evaluated the influence of upper extremity muscle fatigue on glenohumeral and scapulothoracic kinematics and defined their relationship. Radiography and motion tracking systems captured these kinematic relationships, during scapula plane elevation, both before and after fatigue. Fatigue-induced changes in humeral head position, scapular orientation and the minimum subacromial space width were measured. High inter-subject variability existed for each measure which precluded identification of mean differences at the population level. However, significant scapular upward rotation occurred following fatigue (p = 0.0002). Despite similar population mean results, between 39% and 57% of participants exhibited fatigue-related changes in disadvantageous orientations. Additionally, correlations between measures were generally fair (0.21-0.40) and highly dependent on elevation, likely attributed to the variable fatigue responses. Overall, the data confirms that fatigue-induced changes in kinematics poses highly variable risk of subacromial impingement syndrome across individuals. Thus, solely considering the “average” or mean population response likely underestimates potentially injurious fatigue consequences.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electromyography and Kinesiology - Volume 29, August 2016, Pages 55-63
نویسندگان
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