Resistive Exercise Versus HIIT on Calcium and Vitamin D
Launched by CAIRO UNIVERSITY · Mar 21, 2023
Trial Information
Current as of November 06, 2025
Enrolling by invitation
Keywords
ClinConnect Summary
This study is testing whether adding two types of exercise to vitamin D and calcium supplements can better improve vitamin D and calcium levels in premenopausal women who have low vitamin D and low calcium intake. Participants are randomly assigned to one of three groups for about 12 weeks: (1) resistive (strength) exercise plus calcium and vitamin D, (2) high‑intensity interval training (HIIT) plus calcium and vitamin D, or (3) calcium and vitamin D supplements alone. Researchers will take blood tests at the start and after about three months to measure vitamin D and calcium levels. Results are not yet available because the trial is ongoing.
Who can join? The study is for adult women aged 40–45 who are premenopausal, have a BMI between 25 and 30, a vitamin D level in the deficient range (about 12–19 ng/mL), and low calcium intake (less than roughly 500 mg per day). Key exclusions include smoking, serious health problems (like uncontrolled blood pressure or diabetes), osteoporosis, or current hormone replacement therapy. The trial is being conducted at the Cairo University Faculty of Physical Therapy in Giza, Egypt, and plans to enroll about 60 participants, with enrollment by invitation.
Gender
FEMALE
Eligibility criteria
- Inclusion Criteria:
- • Premenopausal women having reduced calcium level (less than 500mg) intake as recorded by 24 hours' dietary recall method and vitamin D deficiency (12-19 ng/ml).
- • Their ages will range from 40 to 45 years.
- • Their BMI will range from 25-30 kg/m2.
- • Don't receive hormonal replacement therapy.
- Exclusion Criteria:
- • Smoking.
- • History of chronic disease (uncontrolled hypertension, diabetes mellitus)
- • Osteoporosis.
- • severe musculoskeletal disorders
- • cardiovascular disease, thyroid dysfunction
About Cairo University
Cairo University, a premier institution in Egypt, is dedicated to advancing medical research and education through innovative clinical trials. With a strong emphasis on improving healthcare outcomes, the university collaborates with various stakeholders to conduct rigorous scientific studies that address critical health challenges. Leveraging its extensive resources and expert faculty, Cairo University aims to contribute valuable insights to the medical community and enhance patient care both locally and globally. Through its commitment to ethical research practices and excellence, the university plays a pivotal role in shaping the future of healthcare in the region.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Giza, Egypt
Patients applied
Trial Officials
Mai shehata
Principal Investigator
faculty of physical therapy
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
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