Completed

NCT Number: NCT02320097

A Study of the Impact of Head Position on Foot Pressure in Stance

When examining a subject in quiet stance from the side, the leg segment is usually seen to be oriented upwards and forwards by about 5°; the knee may be flexed by a few degrees, the shoulders are behind the great trochanter and the head is held forwards. The forward head position moves the center of gravity forwards and thus may increase pressure under the forefoot. Conversely, moving the head backwards should be accompanied by an increase in pressure under the heel and thus decreased pressure under the forefoot.

The study's objective is to study the influence of alignment of the head with the back (i.e. a rearward head position) and head rotation on the foot pressure distribution (measured using a foot pressure platform).

Completed

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Key information

Conditions

Study the Impact of Head Position

Age range

18 year–30 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Age between 18 and 30
Social security coverage
Ability to understand the study's objectives, procedures and risks and to provide informed, written consent

Exclusion criteria

Past or concomitant infectious or cancerous diseases of the spine
Vertebral osteosynthesis
Acute neck or arm pain
Limb trauma in the previous 12 months
Acute leg pain
Neuropathic disease or the sequelae of neuropathic disease of the legs
Myasthenia gravis
Central nervous system disorders
Inner ear problems
Subjects under legal guardianship
Known pregnancy
Simultaneous participation in another biomedical research study of a drug or medical device.

Treatment and study plan

Foot pressure measurement

Other

Description of the foot pressure measurement:

The subject stands on the platform, with the heels and buttocks touching a vertical plane and the head held freely. The subject then moves his/her head backwards so that it touches the vertical plane. Next, he/she turns the head to the right and then towards the left. Each of these positions is maintained for 2 minutes.

The platform's sensors measure the anteroposterior foot pressure distribution during the various acquisitions.

Primary outcomes

The foot pressure in g/cm2 and the anteroposterior pressure distribution, measured using a foot pressure platform.

Time frame: 1 hour

Sponsors and collaborators

Lead sponsor

University Hospital, Strasbourg, France

Other

Registry information

Official study title

A Study of the Impact of Head Position on Foot Pressure in Stance.

Important dates

Study start: 2015
Primary completion: 2015
Study completion: 2015
First posted: Dec 19, 2014
Registry last updated: Jan 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.