Tibialis Posterior Fatigue and Plantar Pressure

The Effect of Tibialis Posterior Muscle Fatigue on Plantar Pressure Characteristics

The purpose of this study is to find out the changes in the measurable parameters of the dynamic and static position of the foot, caused by the tibialis posterior muscle which is activated by the fatigue protocol. The study includes 30 healthy patients whose socio-demographic and descriptive characteristics are held. The changes in the dynamic and static position of foot were measured by pedobarography whereas the level of fatigue was measured by Borg Fatigue Scale.

Study Overview

• Status: Completed
• Conditions: Muscle Fatigue
• Intervention / Treatment: Other: Muscle fatigue protocol

Detailed Description

The purpose of this study is to find out the changes in the measurable parameters of the dynamic and static position of the foot, caused by the tibialis posterior muscle which is activated by the fatigue protocol. The study includes 30 healthy patients whose socio-demographic and descriptive characteristics are held. The changes in the dynamic and static position of foot were measured by pedobarography whereas the level of fatigue was measured by Borg Fatigue Scale. The variables were investigated using Shapiro-Wilk's test to determine the normality. The student's t-test for paired samples were used to analyse, means (X), standard deviations (SD), 95% confidence intervals (95%CI), mean difference and Cohen's d-effect size were calculated. The significance level was set at .05. The effect size was considered 'small' if d= .20; 'medium' if .d=.5; 'large' if d= .8.

• Study Type: Interventional
• Enrollment (Actual): 30
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Turkey
  • Ankara, Turkey
    • Pınar Kısacık

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 35 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• All participants were currently free from congenital or traumatic deformity to either lower extremity,
• A history of foot pain,
• Prior history of surgery to the foot and lower extremity
• A traumatic injury to the ankle or foot 12 months prior to the start of data collection.

Exclusion Criteria:

• Participants were excluded from this study if they had any orthopedic or neurological disorder, need to use an assistive device or orthoses.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Screening
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: One group; Only one group was assessed before and after performing muscle fatigue protocol.	Other: Muscle fatigue protocol; Tibialis posterior was fatigued using 2 exercises: Unilateral heel raise exercise; Close chain resisted foot adduction exercise

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Peak Plantar Pressures of the foot	The plantar pressure profiles were divided into 10 anatomical regions by using software support. These regions corresponded to followings : hallux (toe1), toes 2-5, first to fifth metatarsals (Meta1, Meta2, Meta3, Meta4, and Meta5), mid foot (MF), medial heel (MH), and lateral heel (LH). Peak pressure (PP, Newton-N) was analysed for all regions separately.	1 month

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Contact area of the foot	The percentage of the contact area (CA%) of forefoot (FF), midfoot (MF) and hindfoot (HF) was recorded. The right foot of each subjects was chosen to be analysed to maintain independence of data. In line with this, all tests' first and third trials were exculeded from statistical analysis, because of avoiding acclimatization and boredom or tiredness.	1 month
Foot axis angle	Foot axis angle (FAA) was recorded in unit of degree (o). The right foot of each subjects was chosen to be analysed to maintain independence of data. In line with this, all tests' first and third trials were exculeded from statistical analysis, because of avoiding acclimatization and boredom or tiredness.	1 month
Subtalar angle	Minimum and maximum value of the subtalar angle (STA) was recorded in unit of degree (o). The right foot of each subjects was chosen to be analysed to maintain independence of data. In line with this, all tests' first and third trials were exculeded from statistical analysis, because of avoiding acclimatization and boredom or tiredness.	1 month
Static plantar pressure	The plantar pressure profiles were divided into 10 anatomical regions by using software support. These regions corresponded to followings : hallux (toe1), toes 2-5, first to fifth metatarsals (Meta1, Meta2, Meta3, Meta4, and Meta5), mid foot (MF), medial heel (MH), and lateral heel (LH). Peak pressure (PP, Newton-N) was analysed for all regions separately.	1 month

Collaborators and Investigators

• Sponsor: Hacettepe University
• Investigators: Study Director: Nilgün Bek, Prof.Dr., Lokman Hekim Üniversitesi; Principal Investigator: Azize Reda Caferoglu Tunç, MSc, Lokman Hekim Üniversitesi

Study record dates

Study Major Dates

• Study Start (Actual): July 1, 2020
• Primary Completion (Actual): July 15, 2020
• Study Completion (Actual): July 15, 2020

Study Registration Dates

• First Submitted: April 14, 2020
• First Submitted That Met QC Criteria: May 30, 2020
• First Posted (Actual): June 4, 2020

Study Record Updates

• Last Update Posted (Actual): July 20, 2020
• Last Update Submitted That Met QC Criteria: July 17, 2020
• Last Verified: May 1, 2020

More Information

Terms related to this study

• Keywords: muscle fatigue; Plantar pressure distribution; tibialis posterior
• Additional Relevant MeSH Terms: Fatigue
• Other Study ID Numbers: LUT 12/46-16

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No