백 스쿼트의 운동 유형에 따른 iEMG와 MDF 비교 (Compare on the iEMG and MDF According to Performance of the 3 Different Ways during Back Squat Exercising)

서지정보

· 발행기관 : 한국발육발달학회
· 수록지 정보 : 한국발육발달학회지 / 22권 / 4호 / 349 ~ 354페이지
· 저자명 : 이형국

초록

The purpose of this experiment was to investigate that there are differences of 4 muscles of leg oniEMG and MDF in according to back squat ways, and exercise expertness. Subjects were 14 college male students,these were divided two groups. One was beginner in weight exercise, and the other was expert that they have trainedthe weight training more than 1 year. The sites of measuring in muscles were erector spine, gluteus maximus,quadriceps and hamstrings. They performed the three ways(without load, smith machine, and free weight) of backsquat exercise and we measured iEMG and MDF. On iEMG, there were no significant difference among back squatexercise ways in intermediate level group. But, in intermediate level group there were significant difference among thefour muscles within the back squat exercise ways respectively (p<.001, p<.01, p<.001). Also, there was the same resultin beginner group(respectively p<.01, p<.05, p<.05). Especially, gluteus maximus was mainly contributed in intermediatelevel group, and the erector spine and gluteus maximus were mainly contributed in beginner group. On MDF, therewas no significant difference between back squat exercise ways. in intermediate level group there was no significantdifference among the four muscles within the back squat exercise ways, but in beginner group, there were significantdifference among four muscles within the exercise ways respectively (p<.01, p<.01, p<.05).

영어초록

The purpose of this experiment was to investigate that there are differences of 4 muscles of leg oniEMG and MDF in according to back squat ways, and exercise expertness. Subjects were 14 college male students,these were divided two groups. One was beginner in weight exercise, and the other was expert that they have trainedthe weight training more than 1 year. The sites of measuring in muscles were erector spine, gluteus maximus,quadriceps and hamstrings. They performed the three ways(without load, smith machine, and free weight) of backsquat exercise and we measured iEMG and MDF. On iEMG, there were no significant difference among back squatexercise ways in intermediate level group. But, in intermediate level group there were significant difference among thefour muscles within the back squat exercise ways respectively (p<.001, p<.01, p<.001). Also, there was the same resultin beginner group(respectively p<.01, p<.05, p<.05). Especially, gluteus maximus was mainly contributed in intermediatelevel group, and the erector spine and gluteus maximus were mainly contributed in beginner group. On MDF, therewas no significant difference between back squat exercise ways. in intermediate level group there was no significantdifference among the four muscles within the back squat exercise ways, but in beginner group, there were significantdifference among four muscles within the exercise ways respectively (p<.01, p<.01, p<.05).

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