Effect of Postural Insoles on Stability and Leg Muscular Activity

Not Applicable

Completed

• Conditions: Postural Stability; Muscular Activity

• Registration Number: NCT04836650
• Lead Sponsor: Universidad de Extremadura

Brief Summary

Posturology allows to treat postural problems by using postural insoles, which will have an effect at the neurophysiological level. Pieces of 1 to 3 millimeters are inserted to stimulate specific receptors located on the sole of the foot, which will affect the muscular proprioception and modify the activation of the ascending muscle chains.

The hypothesis of this work is based on the fact that the use of postural insoles with a 2 millimeters metatarsal bar will influence the displacement of the center of pressure and the muscle activity of the leg when compared with a placebo insoles.

Participants will be healthy subjects and will be divided into two groups, control and experimental. Subjects in the control group will be given a pair of flat insoles (placebo insoles) with 1.2 millimeters polyester resin. Those of the experimental group will be made the same insoles but they will include by thermal fusion a metatarsal bar of 2 millimeters polyester resin in the metatarsal zone corresponding to the 1st, 2nd, 3rd and 4th metatarsal head.

Postural stability analysis will be performed with the force platform of the Biomechanics Institute of Valencia (IBV-Spain) and at the same time an electromyographic analysis in the dominant leg with a surface electromyograph system. Subjects will be assessed with their eyes open and closed under two situations, with footwear and with footwear and insoles.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-02-26
• Status Verified: 2021-04
• Study Start: 2021-04-06
• Study First Submitted QC: 2021-04-07
• Study First Posted: 2021-04-08
• Primary Completion: 2021-04-15
• Study Completion: 2021-04-22
• Last Update Submitted: 2021-04-23
• Last Update Posted: 2021-04-26

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

• Healthy subjects with no discomfort in gait
• Subjects with not muscle and skeletal diseases

Exclusion Criteria

• Subjects with balance disorders, pain at legs
• Subjects with loss of balance

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Change of postural balance	From baseline to 10 minutes	The mediolateral and anteroposterior excursion of centre of pressures will be measured in millimeters with a force platform with and without the insoles
Change of muscular activity	From baseline to 10 minutes	The muscular activity in gastrocnemius, soleus and tibialis anterioris will be measured as a percentage (%) with a surface electromyograph in one leg with and without the insoles

Trial Locations

Locations (1)

Alfonso Martínez Nova; 🇪🇸 Plasencia, Cáceres, Spain