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고유수용성신경근촉진법(PNF) 수축-이완 기법의 직접적 간접적 방법의 비교
김난영,김은혜,김현지,김희온,박순우,박슬기,유승용,유지연,이현옥,Kim, Nan-Young,Kim, Eun-Hye,Kim, Hyeon-Ji,Kim, Hee-On,Park, Sun-U,Park, Seul-Gi,Yu, Seung-Yong,Yu, Ji-Yeon,Lee, Hyun-Ok 대한고유수용성신경근촉진법학회 2016 PNF and Movement Vol.14 No.1
Purpose: The purpose of this study was to determine the effectiveness of direct and indirect methods of contract-relax techniques in proprioceptive neuromuscular facilitation (PNF) stretching for improving hamstring flexibility. Methods: Twenty-six subjects were randomly assigned to either a direct contract-relax technique group or an indirect contract-relax group. For each group, stretching intervention was performed three times a week for a period of two weeks, with 12 seconds for the contraction and 10 seconds for the relaxation per once. The direct contract-relax technique for hamstring flexibility was applied by asking the subject to press down on the shoulder of the trainer in the straight leg-raising position. Conversely, the indirect contract-relax technique was performed by raising the leg with resistance. To facilitate a comparative analysis of hamstring flexibility between the two groups before and after the stretching intervention, two-way repeated ANOVA was performed. Hamstring flexibility for each group was measured using a passive straight leg-raising test. Results: The results showed significant improvement in hamstring flexibility for all subjects in the two groups. However, there was no significant difference between the groups. Conclusion: In conclusion, both direct and indirect contract-relax techniques are confirmed to be useful for improving hamstring flexibility. The choice of suitable technique has to be made individually according to the condition of each subject.