Masayuki Saka

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BACKGROUND A semi-rigid brace or taping is often used to prevent giving-ways in the joint with chronic ankle instability (CAI). However, it remains unknown whether the application of a semi-rigid brace or taping modifies abnormal kinematics in CAI joints. The objective of this study was to determine if the application of a semi-rigid brace or taping of the(More)
HYPOTHESIS AND BACKGROUND Humeral retroversion is defined as the orientation of the humeral head relative to the distal humerus. Because none of the previous methods used to measure humeral retroversion strictly follow this definition, values obtained by these techniques vary and may be biased by morphologic variations of the humerus. The purpose of this(More)
CONTEXT Abnormal scapular kinematics during throwing motion in baseball players with shoulder disorders has not yet been clarified, although altered scapular position has been suggested to be associated with shoulder disorder. OBJECTIVE To determine if the shoulders of baseball players with throwing disorders demonstrate abnormal scapular kinematics(More)
BACKGROUND Chronic ankle instability (CAI) results in abnormal ankle kinematics, but there exists limited quantitative data characterizing these alterations. This study was undertaken to investigate kinematic alterations of the talocrural and subtalar joints in CAI. METHODS A total of 14 male patients with unilateral CAI (mean age = 21.1 ± 2.5 years) were(More)
BACKGROUND Humeral retroversion angles determined by previous techniques are varied and/or biased by morphologic variations of the proximal and distal humerus, and their validity should be revisited. To overcome the limitations of previous studies associated with 2-dimensional (2D) images and the reference axes, a 3-dimensional (3D) measurement of humeral(More)
EMPHASIZING THE SHOCK-INDUCED MICRODEFORMATIONS H. Nishido, K. Ninagawa, M. Sakamoto, A. Gucsik (ciklamensopron@yahoo.com), T. Okumura, S. Toyoda, Sz. Bérczi and Sz. Nagy, Okayama University of Science, 1-1 Ridai-cho, Okayama, 700-0005, Japan; Neba Elementary School, 80 Neba Village, Nagano, 395-0701, Japan; University of West Hungary, Bajcsy-Zs. u. 4.,(More)
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