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KMID : 1137820220430020081
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의공학회지
2022 Volume.43 No. 2 p.81 ~ p.93
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Effects of Proprioceptive Neuromuscular Facilitation and Visual- Feedback based Joint Position Reproduction Training on the Level of Ankle Proprioception and One-leg Standing Balance Ability
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Ree Jae-Sun
Kim Jong-Ho
Kang Min-Joo
Hwang Ji-Sun
Hwang Seon-Hong
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Abstract
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Proprioception training has been considered a secondary method to facilitate postural control ability. This study investigated the effects of two different proprioception training methods - the proprioceptive neuromuscular facilitation (PNF) and visual feedback-based joint position and force reproduction (VF) - on postural control advance- ments. Sixteen healthy people volunteered for this study, and they randomly grouped two. Each group participated in the PNF and VF training for three weeks. We evaluated each subject's proprioception levels and balance ability before and after the training. We used a clinometer and electromyogram (EMG) for VF training. The joint position repro- duction test was also used to evaluate the position and force aspects of the proprioception level. We analyzed the trajectory of the center of pressure (COP) while subjects were standing on the firm floor and balance board with one leg using a pressure mat. The improvement of the position aspect of the proprioception level of the VF group (4.93±4.74°) was larger than that of the PNF group (-0.43±2.08°) significantly (p=0.012). The improvement of the anterior-pos- terior COP velocity of the PNF group (0.01±0.01 cm/s) was larger than that of VF group(0.002±0.01 cm/s) sig- nificantly (p=0.046). Changes of position error in the PNF group (rho=0.762, p=0.028) and tibialis anterior force reproduction error in the VF group showed a significantly strong relationship with balance ability variables. These results showed that different PNF and VF have different effects on improving two aspects of proprioception and their relationship with the balance ability. Therefore, these results might be useful for selecting proprioception or balance rehabilitation considering the clinical and patients’ situation.
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KEYWORD
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Balance, Proprioception, Proprioceptive neuromuscular facilitation, Visual feedback, Joint position reproduction
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