کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4056003 1603850 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unilateral hip osteoarthritis: Its effects on preoperative lower limb muscle activation and intramuscular coordination patterns
ترجمه فارسی عنوان
استئوآرتریت حنجره یک طرفه: اثرات آن بر فعال سازی عضلات اندام تحتانی و الگوهای هماهنگی عضلانی
کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی


• Hip OA patients show altered activation patterns of paired lower limb muscles.
• Tibialis alterations may be due to greater GRF's in the non-affected limb.
• Gastrocnemius alterations may provide additional ankle joint stability.
• Tensor alterations of the affected limb may be required to stabilize the hip.
• Treatment of leg length discrepancy may reduce muscle activity alterations.

The objective of this study was to test if patients with unilateral hip osteoarthritis (OA) show greater muscle activity asymmetry between their affected and non-affected limbs than healthy controls between their left and right limbs. Seventeen patients with unilateral hip OA (7 females, 10 males) and 17 age-matched healthy controls (7 females, 10 males) participated in this study. Both groups performed instrumented gait analysis at comparable speeds. Muscle activity was recorded simultaneously for the tibialis anterior (TA), gastrocnemius medialis (GM), vastus lateralis (VL), semitendinosus (ST), tensor fasciae latae (TFL), and gluteus medius (GLM) muscles. In hip OA patients, EMG data showed greater activity of the TA muscle in the non-affected limb, and greater TFL muscle activity in the affected limb. Compared to healthy controls, greater asymmetries between paired limbs were observed for the TA and GM muscles. Finally, the TFL muscle of the affected limb contributed more to the total limb muscle activity than did the non-affected limb. The observed alterations in TA and GM muscle activity in hip OA patients may be due to the greater peak braking and peak vertical forces measured in the non-affected limb. Contrary to this, greater TLF muscle activity of the affected limb indicates the demands put on stabilizing the hip during stance phase. Further studies are necessary to test whether leg length discrepancy affects muscle activation alterations between the affected and non-affected limb in unilateral hip OA patients.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gait & Posture - Volume 45, March 2016, Pages 187–192
نویسندگان
, , , , , , ,