Purpose: This study aimed to investigate excursion changes at the hip, knee, and ankle joints during gait in patients with knee osteoarthritis (KOA) of varying severity. Methods: The method of research was causal-comparative (Ex Post Facto). A Vicon motion analysis system with 4 T-Series cameras was used to measure the kinematics variables. Fifteen normal subjects without KOA and thirty patien...

objectives: the purpose of this study was to investigate the effect of 4-weeks rehabilitation, electrotherapy and kinesiotherapy programs on range of motion shoulder pain in men with idiopathic frozen shoulder. methods & materials: this was a semi experimental study on 18 patient (means±sd age 56.4±6.7 year, height 175.1±5.3 cm, weight 73.1±7.5 kg, history patient 9.2±5.1 month) who referred to...

We studied similarities and differences in the use of goal-equivalent patterns of joint coordination to stand up and sit down from different support surfaces, performed without vision. Sagittal plane motion of major body segments was measured and joint angles for the left upper and lower extremities and the trunk were calculated. We used a modeling strategy relating motion in the redundant spac...

This paper addresses the subspace properties and the recovery of articulated motion. We point out that the nature of the motion subspace of an articulated object is a combination of a number of intersecting rigid motion subspaces. The rank of that motion subspace is less than that of each articulated part combined, depending on the connection between every two linked parts, either a rotation ax...

objectives: this study was designed to evaluate the effectiveness of a modified floor reaction ankle foot orthosis (frafo) design on gait performance in children with cerebral palsy. methods: eight children with cerebral palsy wore a modified frafo bilaterally for six weeks. motion analysis was used to assess the immediate effectiveness of the orthosis on improving gait and also following six w...

the purpose of this study was to examine the effect of indomethacin on biochemical, functional and external symptoms of delayed onset muscle soreness (doms) following eccentric exercise. for this purpose, 20 untrained, healthy male volunteers (age 25.8+6.9 years and fat 15.9+9.3 %) were selected and randomly divided into experimental (n=10) and placebo (n=10) groups. in a double blind study, su...

The purpose of this study is to create an accurate experimental database for the passive (in vitro) freedom-of-motion characteristics of the human knee joint on a subject to subject basis, suitable for the verification and enhancement of mathematical knee-joint models. Knee-joint specimens in a six degree-of-freedom motion rig are moved through flexion under several combinations of external loa...

(i) Subjective rating a joint is moved through its range of motion by a tester who then grades the joint as ‘stiff’, ‘normal’ or ‘hypermobile’. (ii) Maximum range of motion (ROM) measured using goniometry and ruler scales. (iii) Joint stiffness – joint displacement and force applied are taken into account to calculate joint stiffness. In the foot, only the stiffness for the first ray has been r...

The standard Plug-in-Gait (PiG) protocol used in three-dimensional gait analysis is prone to errors arising from inconsistent anatomical landmark identification and knee axis malalignment. The purpose of this study was to estimate the reliability and accuracy of a custom made lower body protocol (MA) compared with the PiG protocol. Twenty-five subjects volunteered to evaluate the intertrial rel...

The objective of this study was to investigate the factors affecting ball velocity at the final instant of the impact phase (t1) in full instep soccer kicking. Five experienced male university soccer players performed maximal full instep kicks for various foot impact points using a one-step approach. The kicking motions were captured two dimensionally by a high-speed camera at 2,500 fps. The th...