background: movement dysfunction may be expressed in terms of symptoms experienced in non-physiological postures, and head-down crooked kneeling (hdck) is a posture frequently assumed by muslims during prayer activities. the purpose of this study was to investigate the cardiovascular responses in the hdck posture. methods: seventy healthy volunteers, comprising 35 males and 35 females, particip...

purpose: altered kinematics of the scapula or scapular dyskinesis (downward rotation, anterior tilt, and protraction) contribute to impingement syndrome by decreasing the subacromial space. given the critical role of scapular position and movement in the function of the shoulder, the aim of this study was to compare scapular position and dyskinesis in individuals with and without rounded should...

The vibration conditions to which tractor operators are subjected are complex and varied with multi axis translation and rotational vibration inputs to different parts of the body. Working under such conditions may lead to human fatigue and other driving related hazards. The present research was carried out to study the operators under varying conditions of vibration while driving a tractor wit...

background: the agricultural sector is one of the most important sectors in production. the safety and health of farmers are important factors that can cause a significant increase in efficiency and productivity. the aim of this study was the assessment of musculoskeletal disorders (msds) using the ovako working posture analysis system (owas) and evaluation of the effect of ergonomic training o...

Background: Movement dysfunction may be expressed in terms of symptoms experienced in non-physiological postures, and head-down crooked kneeling (HDCK) is a posture frequently assumed by Muslims during prayer activities. The purpose of this study was to investigate the cardiovascular responses in the HDCK posture. Methods: Seventy healthy volunteers, comprising 35 males and 35 females, ...

the facial esthetics after orthodontic treatment and orthognathic surgery may be affected by the patient's natural head position. the purpose of this study was to evaluate the natural head position for the three skeletal classes of malocclusion.our sample consisted of 102 lateral cephalometric radiographs of patients aged 15 to 18 years; class i (n=32), class ii (n=40) and class iii (n=30). nin...

The situational factors associated with youthful driving while intoxicated (DWI) and riding with an impaired driver (RWID) are examined. Data were collected from separate samples of youth who had driven while impaired by alcohol and who had ridden with an alcohol-impaired driver. The purpose of the study was to determine whether there are consistent situational factors associated with DWI and R...

background: musculoskeletal symptoms are the main cause of loss of working time, and increase in labor costs. poor posture is the most important risk factor for work-related musculoskeletal symptoms. this study aimed at evaluating the role of ergonomic risk factors in different surgical (open surgery, laparoscopy, and microsurgery) in the frequency or resonance frequency of musculoskeletal symp...