Effects of different exercise interventions on arch morphology and function of the lower extremity in young adults with flexible flatfoot
10.3969/j.issn.1000-6710.2024.09.003
- VernacularTitle:不同运动疗法对青年柔韧性扁平足患者足弓形态和下肢功能的影响
- Author:
Xue SAI
1
;
Yuqing JIA
;
Shuyu ZHANG
;
Xindi LI
;
Gan ZHANG
;
Lu ZHANG
;
Shuo LUAN
;
Enming ZHANG
Author Information
1. 北京体育大学运动医学与康复学院运动康复科学教育部重点实验室(北京 100084)
- Keywords:
flexible flatfoot;
strength training;
eccentric training;
proprioceptive neuromuscular facil-itation(PNF)
- From:
Chinese Journal of Sports Medicine
2024;43(9):689-698
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the effects of proprioceptive neuromuscular facilitation(PNF),con-centric-isometric-eccentric fast training(CIEFT),and concentric-isometric-eccentric slow training(CI-EST)in young adults with flexible flatfoot.Methods Forty participants were randomly allocated into a PNF group,a CIEFT group,a CIEST group and a control group,each of 10.The PNF,CIEFT and CIEST groups underwent six weeks of training as their group names indicated.Then the height differ-ence in the navicular drop test(NDt),normalized navicular height truncated(NNHt),muscle strength of ankle joint,plantar pressure distribution characteristics,and dynamic balance of all groups were re-corded before and after the intervention.Results As to the arch morphology,compared with pre-inter-vention,NDt decreased significantly in the dominant side of PNF group(P=0.049)and the non-domi-nant side of CIEFT group(P=0.034),while NNHt increased significantly in the non-dominant side of CIEFT group(P=0.026).Moreover,compared with pre-intervention,the muscle strength of plantar flex-ion increased significantly in all groups except the control group(dominant/non-dominant side:P=0.003/P=0.004,P=0.000/P=0.000,P=0.001/P=0.001),and that of inversion increased significantly in both PNF and CIEFT groups(dominant/non-dominant side:P=0.011/P=0.005,P=0.003/P=0.003).When it comes to the plantar pressure distribution characteristics,after the intervention,in the non-dominant side,the incremental center of pressure(COP)connections decreased significantly in CIEFT group(P=0.037),while the ratio of medial arch load and the contact area of the medial arch in PNF group de-creased significantly(P=0.012,P=0.027).Moreover,in the dominant side,the contact area decreased significantly in CIEST group(P=0.038),but increased significantly in the control group(P=0.015).What's more,after intervention,the Y-balance test score increased significantly in both sides of PNF and CIEST groups and the dominant side of CIEFT group(P=0.006/P=0.023,P=0.001/P=0.035,P=0.011).Conclusion Through a 6-week exercise intervention,PNF can improve the foot arch morphology and enhance dynamic balance ability in young adults with flexible flatfoot,while concentric-isometric-eccen-tric fast and slow training is superior in improving the foot arch morphology and the dynamic balance ability,respectively.
