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Not yet recruitingNCT07890844Updated Oct 22, 2026

Associations of Respiratory Muscle Strength and Trunk Muscle Mechanical Properties With Dynamic Postural Control

An observational study in Postural Control, Muscle Tonus and Respiratory Muscle Strength, sponsored by Istinye University. Not yet recruiting. Open to participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-22.

Sponsored by Istinye University · Observational

Updated Oct 22, 2026Newly registeredGo to Updates ↓
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
50
Ages
18 Years to 30 Years
Sex
All
01

Study summary

This study will examine the associations of respiratory muscle strength and trunk muscle mechanical properties with dynamic balance and limits of stability in healthy young adults. The research will enroll healthy volunteers between the ages of 18 and 30. Participants will undergo assessments to measure their maximal inspiratory and expiratory pressures, as well as the tone and stiffness of their abdominal and lumbar paraspinal muscles. Additionally, the participants will complete computerized balance tests to evaluate their voluntary weight-shifting capabilities and their stability on a moving surface. Ultimately, the findings will determine whether evaluating these respiratory and trunk muscle characteristics will effectively complement standard clinical balance assessments.

02

Conditions studied

  • Postural Control
  • Muscle Tonus
  • Respiratory Muscle Strength

Keywords

  • Postural Balance
  • Dynamic Postural Control
  • Respiratory Muscle Strength
  • Muscle Tonus
03

In context

Lead sponsor

Istinye University is the lead sponsor of 216 studies on the registry; 92 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 30 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

The study population will consist of healthy young adult volunteers.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Being in good general health.
  • Demonstrating the physical capability to complete respiratory muscle strength testing, myotonometric assessments, and computerized balance evaluations.

Exclusion criteria

Exclusion Criteria:

  • Presenting with major musculoskeletal injuries or surgical interventions within the preceding six months.
  • Having chronic respiratory conditions such as asthma or chronic obstructive pulmonary disease.
  • Having cardiovascular disorders.
  • Having a documented history of neurological or neuromuscular pathologies (e.g., multiple sclerosis or Parkinson's disease).
  • Pregnancy or lactation.
  • Presenting with acute systemic illness, fever, or active infection during testing. - Inability to comprehend and execute the experimental protocols.
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
50 participants (estimated)
Target follow-up
1 Day
Patient registry
Yes

Groups and cohorts

  • Healthy Young Adults

    Other: Myotonometry, Respiratory Muscle Strength Testing, and Computerized Balance Assessment

Interventions

  • OtherMyotonometry, Respiratory Muscle Strength Testing, and Computerized Balance Assessment

    Participants will undergo three specific assessments during a single morning session: Trunk muscle mechanical properties: The muscle tone and dynamic stiffness of the lumbar paraspinal and rectus abdominis muscles will be assessed bilaterally using a handheld digital myotonometer (MyotonPRO). Respiratory muscle strength: Maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) will be evaluated using an electronic mouth pressure device (MicroRPM). Postural control: Balance will be assessed using a computerized balance system (Prokin 252) through two distinct tests: the Limits of Stability (LOS) test to evaluate voluntary dynamic balance and weight-shifting capability, and the Dynamic Bipedal Balance Test (DBBT) to measure postural stability on a multiaxial oscillating surface.

06

What researchers measure

Primary outcomes

  1. Score of The Limits of Stability

    Time frame: Baseline

  2. Score of The Dynamic Bipedal Balance Test

    Time frame: Baseline

Secondary outcomes

  1. Maximal Inspiratory Pressure

    Time frame: Baseline

  2. Maximal Expiratory Pressure

    Time frame: Baseline

  3. Score of Trunk Muscle Tone

    Time frame: Baseline

  4. Score of Muscle Dynamic Stiffness

    Time frame: Baseline

07

Study locations

No study locations are listed for this record.

08

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Oct 2026; primary completion for Dec 2026, 1 month later.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 10, 2026
First posted
Oct 22, 2026
StartEst.
Oct 15, 2026
Primary completionEst.
Dec 5, 2026
CompletionEst.
Dec 10, 2026
Last update
Oct 22, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Registered
First appeared on the registry. No changes since
Oct 22, 2026
Show all 1 update
  1. Oct 22, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07890844
Lead sponsor
Istinye University
Responsible party
Yunus Emre Tutuneken (Dr. Assistant Professor, Istinye University) — Principal investigator
First posted
Oct 22, 2026
Start date
Oct 15, 2026 (estimated)
Primary completion
Dec 5, 2026 (estimated)
Completion
Dec 10, 2026 (estimated)
Last update
Oct 22, 2026

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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