Objective(s): Osteoarthritis (OA) or degenerative joint disease is the commonest form of arthritis and can lead to joint pain, decrease in joint’s range of motion, loss of function, and ultimately disability. Exercise is considered as one of the non-pharmacological treatments of OA. But the effects of exercise on knee joint cartilage remain ambiguous. The aim of the present study was to inves...

background: the aim of this study was to investigate muscle damage indicators and electromyography activities of quadriceps muscles at 25° of hip flexion in untrained healthy females after an eccentric exercise induced muscle fiber damage.   methods : a total of 14 healthy females participated in this pre-experimental study. the subjects performed maximal eccentric quadriceps contractions at 25...

This paper presents a hip joint motion simulation method using accurate hip joint center and hip range of motion. We calculate the extreme hip joint range of motion centered on the hip joint center (HJC) that is located by an automatic calculation algorithm on 3D reconstructed surface models. We make 3D bone surface models from CT (Computer Tomography) or MRI (Magnetic Resonance Imaging). The m...

OBJECTIVE To determine if pelvic posture, hip, and knee positions influence range of motion about the ankle joint. STUDY DESIGN Quasi-experimental repeated measures. SETTING Biomechanics laboratory in a university setting. PARTICIPANTS Eleven men and six women free of ankle joint trauma. MAIN OUTCOME MEASURES Range of motion about the ankle joint. RESULTS ANOVA revealed a significant ...

[Purpose] This study aimed to examine the effects of joint exercise, taping, and stretching on hip joint flexion, flexibility, and range of motion. [Subjects and Methods] Forty-five college students in their 20s were randomly assigned and equally divided into three groups, as follows: a stretching group, a taping and exercise group, and an exercise group. Changes in trunk range of motion and hi...

In this paper we show that staggered joint interpolation [7] with maximaRy smooth joint motion can account for both the hand paths and tangential velocity profiles observed in human. multi-joint atm movements. Arm trajectories were recorded while subjects perfotmed point-to-point movements in a vertical plane. ‘Ihe shape of the tangential velocity profile of the hand was found to be symmeuica.l...

gait rehabilitation using body weight support on a treadmill is a recommended rehabilitation technique for neurological injuries, such as spinal cord injury. in this paper, a new robotic orthosis is presented for treadmill training. in the presented design the criteria such as low inertia of robot components, backdrivability, high safety and degrees of freedom based on human walking are conside...

The objective of this study is to validate previous descriptions of hindfoot kinematics using dual Euler angle methods in a passive cadaveric model. The dual Euler angle method was chosen so as to facilitate description of the translational and rotational movement occurring at both the ankle and subtalar joints. A non-metal experimental set-up was fabricated to generate motion in foot cadaver s...