Earticle

초록

영어

Purpose: Although multi-directional reaching exercises are commonly used clinically, the effects of specific movement directions on the muscle systems of the lower extremities have not been explored. We therefore investigated lower extremity muscle activity during reaching exercises with different sagittal and horizontal plane movements. Methods: The surface electromyography responses of the bilateral rectus femoris, tibialis anterior, peroneus longus, and gastrocnemius muscles were measured during reaching exercises in three directions in the horizontal plane (neutral, 45°horizontal shoulder adduction, and 45°abduction) and three directions in the sagittal plane (neutral, 120° flexion, and 60° flexion). A total of 20 healthy, physically active participants completed six sets of reaching exercises. Two-way repeated ANOVA was performed: body side (ipsilateral and contralateral) was set as the intra-subject factor and direction of reach as the inter-subject factor. Results: Reaching at 45° horizontal shoulder adduction significantly increased the activity of the contralateral rectus femoris and gastrocnemius muscles, while 45° horizontal shoulder abduction activated the ipsilateral rectus femoris and gastrocnemius muscles. The rectus femoris activity was significantly higher with reaching at a 120° shoulder flexion compared to the other conditions. The gastrocnemius activity decreased significantly as the shoulder elevation angle increased from 60° to 120°. Conclusion: Our results suggest that multi-directional reaching stimulates the lower extremity muscles depending on the movement direction. The muscles acting on two different joints responded to the changes in reaching direction, whereas the muscles acting on one joint were not activated with changes in reaching direction.

목차

Abstract
Ⅰ. Introduction
Ⅱ. Materials and Method
1. Participants
2. Design
3. Instrumentation
4. Procedures
5. Statistical analy ysis
Ⅲ. Results
1. Muscle activities of the lower extremity during the reaching exercise with horizontal shoulder adduction-abduction variation
2. Muscle activities of the lower extremity during the reaching exercise with sagittal shoulder flexion variation
Ⅳ. Discussion
Ⅴ. Conclusion
References

키워드

저자

• Jwa-Jun Kim [ Department of Physical Therapy, Choonhae College of Health Sciences ]
• Dae-Kyung Kim [ Korea Proprioceptive Neuromuscular Facilitation Association Busan Branch ]
• Jae-Yong Kim [ Rehabilitation Center, Busan Medical Center ]
• Jae-Wook Shin [ Rehabilitation Center, Busan Medical Center ]
• Se-Yeon Park [ Department of Physical Therapy, Kaya University ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  PNF and Movement

• 간기

  연3회

• pISSN

  2508-6227

• eISSN

  2508-6472

• 수록기간

  2003~2020

• 등재여부

  KCI 등재

• 십진분류

  KDC 512 DDC 610