무용전공 여대생들과 일반 여대생들의 무릎과 발목 등속성 최대우력과 허리폄근 등척성 최대우력 비교 (Comparison of the Isokinetic Strength of the Knee and Ankle and Isometric Strength of the Lumbar Extensor in Female Collegiate Dancers and Controls)

서지정보

· 발행기관 : 한국전문물리치료학회
· 수록지 정보 : 한국전문물리치료학회지 / 16권 / 1호 / 25 ~ 33페이지
· 저자명 : 원종임

초록

In dancers, intact muscular coordination is a well balanced antagonist, which could be a decisive factor in protection against injury as dancers often have hypermobile joints and their ankle joints often bear their full body weight in extreme positions. The purposes of this study were to identify the isokinetic strength of the knee and ankle and the isometric strength of the trunk in female collegiate dancers and controls. Furthermore, the study aimed to investigate the peak torque ratio of knee extension to flexion, ankle plantarflexion (PF) to dorsiflexion (DF), and dominant legs to nondominant. Twenty-one female collegiate dancers (20.0 years of age) and twenty-one female collegiate students (19.3 years of age) performed isokinetic maximum efforts of the knee extensors and flexors at 60°/sec and 120°/sec, the ankle plantarflexors and dorsiflexors at 30°/sec and 120°/sec and isometric maximum efforts of the lumbar extensors at 0°, 12°, 24°, 36°, 48°, 60°, and 72°. The results were as follows: The isokinetic peak torque of the knee extensors and the ratio of knee extensors to flexors of dancers were significantly higher than those of controls (p<.01). However, the isometric peak torque of the back extensors (p<.01) and isokinetic peak torque of the ankle plantarflexors and dorsiflexors (p<.05) of dancers were significantly lower than those of controls. Further studies are needed to identify the difference in proprioception of the joints between dancers and controls.

영어초록

In dancers, intact muscular coordination is a well balanced antagonist, which could be a decisive factor in protection against injury as dancers often have hypermobile joints and their ankle joints often bear their full body weight in extreme positions. The purposes of this study were to identify the isokinetic strength of the knee and ankle and the isometric strength of the trunk in female collegiate dancers and controls. Furthermore, the study aimed to investigate the peak torque ratio of knee extension to flexion, ankle plantarflexion (PF) to dorsiflexion (DF), and dominant legs to nondominant. Twenty-one female collegiate dancers (20.0 years of age) and twenty-one female collegiate students (19.3 years of age) performed isokinetic maximum efforts of the knee extensors and flexors at 60°/sec and 120°/sec, the ankle plantarflexors and dorsiflexors at 30°/sec and 120°/sec and isometric maximum efforts of the lumbar extensors at 0°, 12°, 24°, 36°, 48°, 60°, and 72°. The results were as follows: The isokinetic peak torque of the knee extensors and the ratio of knee extensors to flexors of dancers were significantly higher than those of controls (p<.01). However, the isometric peak torque of the back extensors (p<.01) and isokinetic peak torque of the ankle plantarflexors and dorsiflexors (p<.05) of dancers were significantly lower than those of controls. Further studies are needed to identify the difference in proprioception of the joints between dancers and controls.

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