The arch support insoles show benefits to people with flatfoot on stance time, cadence, plantar pressure and contact area

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Title:	The arch support insoles show benefits to people with flatfoot on stance time, cadence, plantar pressure and contact area
Authors:	Huang, YP (Huang, Yu-ping) Peng, HT (Peng, Hsien-Te) Wang, X (Wang, Xin) Chen, ZR (Chen, Zong-Rong) Song, CY (Song, Chen-Yi)
Contributors:	運教所
Keywords:	MUSCLE STRENGTH HEEL LIFTS PES PLANUS FOOT GAIT STABILITY STRETCH WALKING HEIGHT SPEED
Date:	2020-08-20
Issue Date:	2020-10-26 14:44:59 (UTC+8)
Abstract:	Background Pes planus (flatfoot) is a common deformity characterized by the midfoot arch collapses during walking. As the midfoot is responsible for shock absorption, persons with flatfoot experience increased risk of injuries such as thumb valgus, tendinitis, plantar fasciitis, metatarsal pain, knee pain, lower-back pain with prolonged uphill, downhill, and level walking, depriving them of the physical and mental health benefits of walking as an exercise. Methods Fifteen female college students with flatfoot were recruited. A wireless plantar-pressure system was used to measure the stance time, cadence, plantar pressure, and contact area. Parameters were compared between wearing flat and arch-support insoles using a two-way repeated measures ANOVA with on an incline, decline, and level surface, respectively. The significance level alpha was set to 0.05. The effect size (ES) was calculated as a measure of the practical relevance of the significance using Cohen'sd. Results On the level surface, the stance time in the arch-support insole was significantly shorter than in the flat insole (pES= 0.48). The peak pressure of the big toe in the arch-support insole was significantly greater than in the flat insole on the uphill (pES= 0.53) and level surfaces (pES= 0.71). The peak pressure of the metatarsals 2-4 and the contact area of the midfoot in the arch-support insole were significantly greater than in the flat insole on all surfaces (allp< 0.05). Conclusions These results imply that wearing an arch-support insole provides benefits in the shortened stance time and generation of propulsion force to the big toe while walking on uphill and level surfaces and to the metatarsals 2-4 while walking on the level surface. More evenly distributed contact areas across the midfoot may help absorb shock during uphill, downhill and level walking.
Relation:	PLOS ONE 卷冊: 15 期: 8 文獻號碼: e0237382
Appears in Collections:	[Graduate Institute of Sport Coaching Science ] journal articles

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