کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6211359 1267213 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lower extremity neuromuscular compensations during instrumented single leg hop testing 2-10 years following ACL reconstruction
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Lower extremity neuromuscular compensations during instrumented single leg hop testing 2-10 years following ACL reconstruction
چکیده انگلیسی

BackgroundThis study compared lower extremity EMG activation and sagittal plane kinematics of subjects at a minimum of 2 years post-successful ACL reconstruction and rehabilitation during instrumented single leg hop testing.MethodsComparisons were made based on subject responses to the following question, “compared to prior to your knee injury how capable are you now in performing sports activities”? Group 1 = very capable, Group 2 = capable, and Group 3 = not capable. In addition to EMG (1000 Hz) and kinematic (60 Hz) data, subjective knee function, internal health locus of control, sports activity characteristics (intensity, frequency) pre-knee injury, and at follow-up were also compared.ResultsGroup 3 had lower perceived knee function, decreased perceived sports intensity, and more subjects with decreased sports activity intensity by two levels compared to pre-injury values. Perceived function scores, anterior laxity measurements and grades were similar between groups. During single leg hop propulsion and landing Group 1 (very capable) had greater involved lower extremity gluteus maximus and medial hamstring activation amplitudes than Group 3 (not capable). Perceived sports capability was related to better subjective knee function, and higher perceived sports activity intensity.ConclusionNeuromuscular compensations suggesting a hip bias with increased gluteus maximus and medial hamstring activation were identified at the involved lower extremity among most subjects who perceived high perceived sports capability compared to pre-injury status. These compensations may be related to a permanent neurosensory deficit, and its influence on afferent pathway changes that influence CNS sensorimotor re-organization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Knee - Volume 21, Issue 6, December 2014, Pages 1191-1197
نویسندگان
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