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KMID : 1002720120100010009
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Journal of Korean Proprioceptive Neuromuscular Facilitation Association
2012 Volume.10 No. 1 p.9 ~ p.17
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The Impact of Shoulder Flexion Angle on Hand Grip Strength in Male and Female Undergraduate Students
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Ha Kyung-Jin
Kim Dae-Kyeong
Hwang Seon-Keon
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Abstract
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Purpose : This study’s purpose is consideration about change of the hand grip strength according to different posture and shoulder flexion angle. The shoulder joint permits the greatest mobility and carries out the important function of stabilization for hand use. Hand grip activity is important to evaluate while assessing loads of shoulder in hand mobilities.
Methods : Thirty(15 male, 15 female) college students with unknown shoulder dysfunction participated subject in five different positions of elbow extension with sitting and standing posture, different positions is followed :
shoulder 0° flexion shoulder 45° flexion shoulder 90° flexion shoulder 135° flexion shoulder 180° flexion.
Results : On the average, in the hand grip strength, the standing posture is higher than sitting posture. Sitting posture showed a most high level at the man’s 0° and woman’s 135°. And standing posture showed a most high level at the man’s 135° and woman’s 90°.
Conclusion : The paired t-test was used to determine the different in grip strength between sitting and standing posture by shoulder angle change. There was no significant difference between the five position by sitting and standing posture. In man, correlation analysis revealed significant connection for all five position by sitting and standing posture. And in woman, correlation analysis revealed connection for all five position by sitting and standing posture.
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KEYWORD
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Shoulder, Hand grip strength, Posture, Angle
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