Differences in Effect of Proprioceptive Neuromuscular Facilitation in Consideration of Movement Characteristics on Standing up

Abstract

With 28 healthy students as subjects, we measured the floor reaction force in standing up from the sitting position for 3 conditions: control, after proprioceptive neuromuscular facilitation (PNF) with legs together, and after PNF with the legs apart. In the control condition, the maximum value of plus direction of Fx, the anterior force, showed a higher value in standing up with the legs together than the legs apart. Compared to the control condition, in the PNF conditions, the maximum value of Fz, the vertical force, showed greater values. And although a significant difference was found in standing up from sitting between legs together and apart in the control condition, this difference was not significant after PNF. In comparison of the PNF conditions, Fz in standing up with legs together showed a higher maximum value than in standing up with legs apart after PNF with legs together. These results suggest that in standing up, legs together and legs apart have different movement characteristics both of which are affected by PNF. Also, the PNF effect has a partial ripple effect according to the characteristics of the standing movement, and these characteristics are partially involved in methods showing the effectiveness of PNF.