BACKGROUND Subacromial impingement is a common cause of shoulder pain and one cause of rotator cuff disease. We aimed to identify which shoulder motions cause subacromial impingement by measuring the vertical displacement and peak strain of the coracoacromial ligament using ultrasound speckle tracking imaging. METHODS Sixteen shoulders without shoulder disability were enrolled. All subjects w...

Background. The shoulder joint has a very complex structure. Normal shoulder function is dependent on joint stability and proper neuromuscular control. Given its anatomical structure and range of movement, this joint is highly susceptible to numerous disorders and injuries. Normal stability of the shoulder guarantees physiological function, and is also the most important element of injury preve...

[Purpose] The aim of this study was to present an individualized resistance training method to enable exercise while maintaining an exercise load that is set according to an individual's joint angle-torque using a haptic-based resistance training machine. [Methods] Five participants (machine group) performed individualized shoulder internal and external rotation training with a haptic resistanc...

Objectives This study aimed to determine the effects of soft tissue and bone widths patient's hip shoulder region on position postoperative acetabular inclination angles in lateral decubitus during replacement procedures. Materials Methods Seventy-three patients with primary coxarthrosis who underwent arthroplasty by a single experienced surgeon using water gauge assisted inclinometer were retr...

Much of the research on backpack design has been focused on spinal loading/biomechanics while the wearer is in a neutral/upright trunk posture, such as those employed by outdoor enthusiasts and schoolchildren. This research has led to some important harness design improvements that reduce trunk muscle exertions, fatigue and improve overall comfort. There are number of occupations, however, wher...

The influence of individual acromial morphology on the pathogenesis of rotator cuff tears remains controversial. Since Neer first described the impingement syndrome, several authors have described the morphology of the acromion. In this study, we try to find a physiopathological correlation between the anatomical morphology of the acromion based on these two recently descripted parameters (Acro...

This study investigated the relationship between forward head posture and temporomandibular disorder symptoms. Thirty-three temporomandibular disorder patients with predominant complaints of masticatory muscle pain were compared with an age- and gender-matched control group. Head position was measured from photographs taken with a plumb line drawn from the ceiling to the lateral malleolus of th...

The purpose of this study was to determine the kinematic factors related forward and vertical release velocities in male javelin throwers. movements 115 throwers who participated real competitions were videotaped by two cameras, coordinate values obtained using three-dimensional motion analysis technique. time-series changes data calculated, relationship with velocity directions confirmed calcu...