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KMID : 1012020230120020149
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Physical Therapy Rehabilitation Science
2023 Volume.12 No. 2 p.149 ~ p.154
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The Effects of Ankle Joint Position on Hip Extensor Muscle Activity for Bridging Exercise in Sagittal Plane
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Lee Hyun
Lee Seung-Won
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Abstract
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Objective : This study is designed to investigate the effect of ankle joint position on hip extensor muscle activity when bridging exercise in sagittal plane.
Design : Cross-sectional study
Methods : The subjects were recruited from 20 healthy adult men. The subjects performed three types of bridging exercises (normal bridging, ankle dorsiflexion bridging, ankle plantar flexion bridging) three times for five seconds with a rest of 15 seconds between measurements and two minutes of rest between each motion. The target muscles were the gluteus maximus, biceps femoris, soleus, and tibialis anterior. A surface electromyography was used to measure the muscle activity of these muscles.
Results : The results show there was no statistically significant difference between the three types of exercise in the gluteus maximus muscle activity. However, the biceps femoris showed a significant difference between the three types of exercises (p <0.05).
Conclusions : In conclusion, when the three different bridging exercises were performed by adding ankle motion to normal bridging exercise, there was a significant difference in the muscle activity of the gluteus maximus relative to the biceps femoris muscle activity in the order of the ankle dorsiflexion bridging, normal bridging, and ankle plantar flexion bridging exercise. Therefore, this could be an effective option for a bridging exercise if applied to patients with a weak gluteal muscle and shortening of the hamstring muscle in further studies.
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KEYWORD
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Bridging exercise, Electromyography, Gluteus maximus, Ankle joint
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