An interventional study of Body Position During Muscle Strength Assessment in Ankle Dorsiflexor, Hallux Dorsiflexor and Plantar Flexor Strength, sponsored by Istanbul Physical Medicine Rehabilitation Training and Research Hospital. Completed at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-02-09.
Sponsored by Istanbul Physical Medicine Rehabilitation Training and Research Hospital · Not applicable, Interventional, and Basic science
The purpose of this study is to investigate whether there is a difference in ankle dorsiflexor, hallux dorsiflexion and plantar flexor muscle strength measured in the supine position compared with the standing position. Muscle strength assessments are commonly performed in different body positions; however, the effect of weight-bearing and postural demands on ankle muscle strength measurements remains unclear. Understanding the influence of testing position may improve the standardization and clinical interpretation of muscle strength assessments.
Ankle dorsiflexor and plantar flexor muscles play a crucial role in gait, balance, and postural control. Muscle strength measurements of these muscle groups are widely used in both clinical practice and research to evaluate functional capacity and rehabilitation outcomes. Traditionally, strength assessments are performed in non-weight-bearing positions such as supine; however, standing assessments may better reflect functional and postural demands due to the involvement of balance control and weight-bearing.
In this study, ankle dorsiflexor, hallux dorsiflexion and plantar flexor muscle strength will be assessed in both supine and standing positions using standardized measurement procedures. Measurements will be performed under controlled conditions to minimize variability related to posture, stabilization, and examiner influence. The primary objective is to compare muscle strength values obtained in the two positions and to determine whether standing assessments yield significantly different results compared with supine assessments.
The findings of this study are expected to contribute to the optimization of clinical muscle strength evaluation protocols and to provide insight into the role of functional loading and postural control in ankle muscle strength measurements.
Istanbul Physical Medicine Rehabilitation Training and Research Hospital is the lead sponsor of 119 studies on the registry; 27 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Ankle dorsiflexor , hallux dorsiflexor and plantar flexor muscle strength assessed in the supine position.
Other: Body Position During Muscle Strength Assessment
Ankle dorsiflexor, hallux dorsiflexor and plantar flexor muscle strength assessed in the standing position.
Other: Body Position During Muscle Strength Assessment
Muscle strength was assessed in both supine and standing positions using standardized isometric testing. The order of testing positions and movement directions was randomized, and no visual feedback of force output was provided to participants.
Isometric Ankle Muscle Strength
maximum voluntary isometric contraction force of ankle dorsiflexor and plantar flexor muscles measured in supine and standing positions using a custom made force plate
Time frame: Day 1 ( Single assessment session)
Isometric Hallux Dorsiflexion Strength
Maximum voluntary isometric contraction force of the hallux dorsiflexor muscles measured in supine and standing positions using a custom made force plate
Time frame: Day 1 ( Single assessment session)
This study is completed, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Istanbul Physical Medicine Rehabilitation Training and Research Hospital