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KMID : 1142420220200030351
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PNF and Movement
2022 Volume.20 No. 3 p.351 ~ p.358
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Effects of PNF Stretching on Balance During Single-Leg Standing in Older Adults
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Park Jung-Seo
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Abstract
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Purpose: This study aims to determine the correlation between the effects of contract?relax?antagonist?contract (CRAC) and contract?relax (CR) forms of proprioceptive neuromuscular facilitation (PNF) stretching on balance during single-leg standing in elderly people.
Methods: The participants were 20 elderly people in healthy condition and divided equally into two groups: the CRAC stretching group and the CR stretching group. Subjects were made to walk on a treadmill for 6 minutes before the stretching as a warm-up. CR and CRAC stretching were performed on the soleus. The dependent variables used to assess single-leg standing balance were overall stability(OSI), anterior/posterior(A/P) movement, and medial/lateral(M/L) movement. The statistical methods used to assess the differences between groups were verified using the Mann?Whitney U test and the Wilcoxon signed-rank test.
Results: The CRAC group had significantly increased OSI, A/P and M/L after the PNF stretching intervention (p < 0.05). The CR group had significantly increased OSI and A/P after the PNF stretching intervention (p < 0.05), but M/L did not significantly increase (p > 0.05). There was no significant difference in stretching between CRAC and CR (p > 0.05).
Conclusion: The results of this study revealed that CR and CRAC PNF stretching improved single-leg standing balance. CARC stretching before exercise is helpful for elderly people, as it improves balance.
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KEYWORD
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Contract-relax-antagonist-contract, Single-leg standing, Balance
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