نتایج جستجو برای: flexion and extension
تعداد نتایج: 16844209 فیلتر نتایج به سال:
Objective: The aim of this study was to investigate the relationship between isokinetic relative torques of hip, knee and ankle joints and the height of guide leg jump in young men. Methods: 27 college male athletes with mean age of 25±3.5 years, height 178.5±7.8 cm and weight of 75.7±10.7 kg voluntarily participated in this study. Isokinetic torque of hip, knee and ankl...
I measured the knee extension torque, produced by eight hemiparetic patients during repeated knee extension-flexion reversals and during separated knee extension-flexion dyads, to determine the effect of "reversal of antagonists" on knee extension torque. The hemiparesis in these eight patients was secondary to intracranial lesions. I tested their involved lower extremity on an isokinetic dynam...
اغلب مدلهای بیومکانیکی دارای این نقص جدی هستند که مستقیماً شامل نیروی عضلات نمی شوند. در مدلهای بیومکانیکی اثر گشتاوری که هریک از عضلات حول مفاصل بدن ایجاد می کنند در هر یک از مفاصل بدن در نظر گرفته می شود و محاسبات تحلیل سینتیکی و سینماتیکی حرکت بر اساس آن انجام می شود. در این پایان نامه یک مدل جدید برای سیستم عضلانی اسکلتی ارایه شده است که اثراضافه کردن عضلات را بر نتایج مدل بررسی می کند. در ه...
Background: The present study examined the relationship between muscle strength and range of motion in the lower extremity, and balance and risk of falling in the elderly. Methods: This cross-sectional study was conducted on healthy elderly (mean±SD age: 65.64±4.95 y) in Rasht City, Iran. The study participants were 65 healthy male elderly who met the stud inclusion criteria. They were selecte...
Background and purpose: Ultrasonography is a reliable and valid method to assess the strength of neck extensors and measuring the neck muscles dimensions. Cervical muscles strength and dimensions may change in different positions. The aim of this study was to compare the strength of cervical extensor muscles and dimensions of semi-spinalis capitis muscle (SECM) in three different neck positions...
background: knee extension contracture is a disabling complication after fractures around the knee. in this study we aimed to study factors influencing the outcomes of quadricepsplasty for the treatment of traumatic knee extension contracture. we hypothesized that there is no factor influencing the final range of knee motion.methods: in this retrospective study, we included 64 patients who unde...
Background: Many researches have been conducted inorder to explore the ingredients of joint impairements like muscle spasticity and joint rigidity in which mechanical viscoelastic properties have been quantified during the joint movement. The aim of this study was to explore passive viscose and elastic properties at flexion and extension of the human elbow joint and to determine a mat...
Objective: Motor-sensory disorder and lymphatic edema in the upper extremity are rather common problems after mastectomy. The effect of rehabilitation programs on these problems is inconsistent. Therefore, current study was conducted to determine the effect two methods of Pilates and Yoga exercises on range of motion upper extremity in women after mastectomy. Materials & Methods: A quasi-exper...
Objective: The objective of the study was to assess and compare Early Active Tension and Immobilization Protocols in Rehabilitation of the Hand, Following Zone 5-6 Extensor Tendon Repair. Materials & Methods: From the 21 patients enrolled in a randomized controlled trial study, 18 cases with average age of 32. 43 years completed the protocol. A total of 41 extensor tendons from 27 fingers of...
Purpose: In approaching full trunk flexion (75%-80% of full flexion), myoelectric activity of lumbar erector spinae muscles is reduced or silenced; this response is known as flexion-relaxation phenomenon (FRP). FRP is a shift in load sharing and spinal stabilization from active structures (erector spinae muscles) to passive ligamentous and articular structures. Static lumbar flexi...
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