咬合挙上装置(Splint)の装着が運動選手の筋力及び平衡性に与える影響

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A study was done to examine the effect of wearing splints, for treatment of temporomandibular joint dysfunctions, on muscle strength and equilibrium in athletes. Forty collegiate athletes participated. All the subjects were interviewed and examined by dental investigators. Splints were constructed on the basis of vertical dimensions deemed appropriate by the subjects' dentists. Three areas were then studied : First, isometric muscle strenght of grip, arm flexion, back extension, leg extension, and plantar flexion were measured with and without splints. Second, isokinetic muscle strength of knee extension and flexion were measured at angular velocities of 60 deg/s, 120 deg/s, and 240 deg/s, with and without splints. Third, a stepping test with closed eyes was used to determine equilibrium by measuring transfer distance, transfer angle and rotation angle with and without splints. The results are summarized as follows : 1)Isometric muscle atrength of back extension, leg extension, and plantar flexion were significantly increased when wearing splints (p<0.05). Arm flexion strength and grip strength showed no significant alteration. 2)Isokinetic muscle strength showed no significant difference at any angular velocity. 3)In the stepping test with closed eyes, transfer distance showed a significant decrease when splints were worn (p<0.01). Transfer angle and rotation angle showed no significant alteration. From the present results, it is suggested that wearing of splints is an effective aid for improving the muscle strength and equilibrium of athletes.
1993-06-01

咬合挙上装置(Splint)の装着が運動選手の筋力及び平衡性に与える影響

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