The aims of this study were: (i) to present the kinematic and electromyographic patterns of the choku-zuki punch performed by 18 experienced karatekas from the Portuguese team, and (ii) to compare it with the execution of 19 participants without any karate experience. The kinematic and electromyographic data were collected from the arm and forearm during the execution of the specific punch. A t...

This study's aim was to identify the effect of oscillation of torques in isometric tasks under identical mechanical conditions on the muscle synergies used. It was hypothesized that bi-functional muscles would play a lesser role in torque oscillation, because they would also generate an undesired oscillation. Thus, changes in muscle synergies were expected as a consequence of oscillation in tor...

<p class="abstract">Proximal radio ulnar synostosis is a rare entity presenting with restriction of supination and pronation. Among the various types, type 4 variety even more-rare its presentation, can pose diagnostic challenge specially, if history trauma. Radiologically, it usually overlooked as malunited radial neck therefore needs thorough evaluation. We presented case 15-year-old ma...

Background and Aims One of the most important structural abnormalities in foot is decrease height medial longitudinal arch when bearing body weight, which causes deformity ankle its pronation. The present study aims to compare static balance, posture, selected plantar parameters adolescent girls with pronation healthy peers. Methods This quasi-experimental causal-comparative study. Participants...

  Abstract   The supracondylar process is a beak-like bony projection that arises from the anteromedial   surface of the humerus. The process has rarely been associated with   compression of the median nerve and seldom requires treatment. We report a case   of a supracondylar process that caused tenting of the median nerve with elbow extension   and pronation.  

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The present paper proposes a technical analysis method for extracting information about movement patterning in studies of motor control, based on a cluster analysis of movement kinematics. In a tutorial fashion, data from three different experiments are presented to exemplify and validate the technical method. When applied to three different basketball-shooting techniques, the method clearly di...

BACKGROUND The motion control shoe is a well-developed technology in running shoe design for controlling excessive rearfoot pronation and plantar force distribution. However, there is little information on the leg muscle activation with different shoe conditions. HYPOTHESIS The motion control shoe can prevent excessive shank muscle activation and delay fatigue. STUDY DESIGN Controlled labor...

2 ABSTRACT The overuse injuries commonly experienced by runners can be attributed to a number of risk factors. The primary risk factor is repetitive impact loading of the lower extremity, but anatomical predispositions, excessive subtalar joint pronation, running surfaces, shoes and training habits all contribute to the probability of injury. Running shoes are rarely the sole cause of an injury...

OBJECTIVE To determine the kinematic, kinetic and EMG responses to perturbations of the foot by running in varus, neutral, and valgus-wedged shoes. DESIGN Within-subjects study comparing kinematics, kinetics and EMG while running in three different shoe conditions. BACKGROUND Excessive pronation has been cited as a key contributor to many types of running injuries. However, the roles of the...