Health TrialsbyHealthPanel

Anchoring and Postural Stability

ConditionHealthy Adult Participants
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-50
SponsorUniversity of Central Florida

About this trial

This study will compare standing balance in adults ages 18 to 50 during normal standing, inward anchoring, and outward anchoring. Anchoring involves standing with the feet wider than shoulder width and trying to pull the legs together or push them apart without moving the feet. Participants will complete all three conditions in a randomly assigned order. A researcher will use a handheld force-measuring instrument at six points on the pelvis to measure how much pressure participants can resist before a foot lifts from the floor. Participants will also rate how stable they feel after each anchoring condition. The first 18 participants will repeat assessments to evaluate measurement consistency. Participation is expected to last 60 minutes, or 90 minutes for those completing repeat assessments.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Adults aged 18-50 years.

Able to provide informed consent and independently read, write, and communicate in English.

Disqualifiers

History of neurological or vestibular conditions affecting balance, such as stroke, Parkinson's disease, multiple sclerosis, or vertigo, or uncorrected/inadequately corrected visual deficits affecting postural control.

Lower-extremity or spinal injury, orthopedic surgery, or a musculoskeletal condition within the past 6-12 months that may affect balance, force production, or safe participation.

Current pain or dysfunction limiting safe standing or weight-bearing tasks.

Use of medications that may affect balance, coordination, or muscle performance, such as muscle relaxants, opioids, or sedatives.

Trial design

Design model

Crossover

Treatments tested in this trial

  • Normal Stance

    Other intervention

    Participants stand normally while the tester performs the protocol's pelvic force assessments. This condition provides the within-participant comparison for the two anchoring techniques

  • Inward Anchoring

    Other intervention

    Participants stand upright with their feet wider than shoulder width and attempt to pull their legs toward each other without moving the feet. They maintain the position during the pelvic force assessments.

  • Outward Anchoring

    Other intervention

    Participants stand upright with their feet wider than shoulder width and attempt to push their legs away from each other without moving the feet. They maintain the position during the pelvic force assessments.

Treatment groups

72 Participants
are divided into 6 treatment groups

6

Treatment groups

See each treatment group below.

Group A: Normal Stance → Inward Anchoring → Outward AnchoringExperimental treatment 3 interventions
Group B: Normal Stance → Outward Anchoring → Inward AnchoringExperimental treatment 3 interventions
Group C: Outward Anchoring → Normal Stance → Inward AnchoringExperimental treatment 3 interventions
Group D: Outward Anchoring → Inward Anchoring → Normal StanceExperimental treatment 3 interventions
Group E: Inward Anchoring → Normal Stance → Outward AnchoringExperimental treatment 3 interventions
Group F: Inward Anchoring → Outward Anchoring → Normal StanceExperimental treatment 3 interventions

Trial outcomes

Primary outcomes

1

Mean Break-Point Force at the Right Anterior Superior Iliac Spine

A microFET2 handheld dynamometer is applied at the right anterior superior iliac spine during normal stance, inward anchoring, and outward anchoring. Force in newtons is recorded when the sole of the foot closest to the tester leaves the floor. Three readings are collected per stance

Time frame
Day 1
2

Mean Break-Point Force at the Left Anterior Superior Iliac Spine

A microFET2 handheld dynamometer is applied at the left anterior superior iliac spine during normal stance, inward anchoring, and outward anchoring. Force in newtons is recorded when the sole of the foot closest to the tester leaves the floor. Three readings are collected per stance.

Time frame
Day 1
3

Mean Break-Point Force at the Right Iliac Crest

A microFET2 handheld dynamometer is applied at the right iliac crest during normal stance, inward anchoring, and outward anchoring. Force in newtons is recorded when the sole of the foot closest to the tester leaves the floor. Three readings are collected per stance

Time frame
Day 1
4

Mean Break-Point Force at the Left Iliac Crest

A microFET2 handheld dynamometer is applied at the left iliac crest during normal stance, inward anchoring, and outward anchoring. Force in newtons is recorded when the sole of the foot closest to the tester leaves the floor. Three readings are collected per stance.

Time frame
Day 1

Secondary outcomes

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of Central Florida

Lead sponsor

Source ClinicalTrials.gov
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