An observational study in Healthy, sponsored by Cairo University. Not yet recruiting at 1 site in Egypt. Open to female participants aged 25 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-09.
Sponsored by Cairo University · Observational
Accurate normalization of peak torque (PT) is critical for comparing muscle strength across individuals of varying body composition. While body weight (BW) is commonly used, body mass index (BMI) may provide a more stable representation of inter-individual variability. The study aims to compare the effects of BW and BMI normalization on inter-individual variability of trunk, hip, and knee muscle strength in healthy female participants.
Accurate normalization of peak torque (PT) is critical for comparing muscle strength across individuals of varying body composition. While body weight (BW) is commonly used, body mass index (BMI) may provide a more stable representation of inter-individual variability. The study aims to compare the effects of BW and BMI normalization on inter-individual variability of trunk, hip, and knee muscle strength in healthy female participants.
Thirty healthy adult females will undergo isokinetic testing of trunk flexors/extensors, hip flexors/extensors/abductors/adductors, and knee flexors/extensors. PT values will be normalized to BW and BMI. Coefficient of variation (CV%) will be calculated for each method to evaluate relative variability.
657 studies on the registry are indexed under Body Weight; 76 are open to participants now.
This study's planned enrollment of 112 is below the median of 147 across 141 observational studies indexed under Body Weight.
Browse Body Weight studies →Cairo University is the lead sponsor of 4,941 studies on the registry; 1,458 are open to participants now.
Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.
Counted across the registry records on this site, refreshed daily.
A total of 112 healthy sedentary females volunteered to participate in the study. Their demographic characteristics including age, weight, height and BMI are illustrated in Table 1. Ethical approval was obtained from the Research Ethics Committee of the Faculty of Physical Therapy, Cairo University. Prior to enrollment, all participants provided written informed consent after receiving a comprehensive explanation of the study objectives, procedures, and their rights as research subjects. All procedures were performed in accordance with the Helsinki Declaration. All participants provided informed written consent prior to participation, aligning with ethical standards for research with human subjects.
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.
he absence of any current or prior musculoskeletal injury or pain affecting the trunk, pelvis, or lower extremities within the preceding six months.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
effects of BW and BMI normalization on inter-individual variability of trunk, hip, and knee muscle strength in healthy female
trunk muscle peak torque
Isokinetic trunk muscle strength testing
Time frame: two weeks
hip muscle peak torque
Isokinetic hip muscle strength testing
Time frame: two weeks
Plan to share: No
Start is estimated for Mar 2026; primary completion for Apr 2026, 0 months later.
Of 40 non-industry observational studies under Body Weight, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 21 and three quarters within 72. This study's planned 0 months is below that.
Counting every sponsor, half of 41 studies reached it within 31 months; a quarter within 20 and three quarters within 71.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.
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