CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 18 enrolled
Drug / intervention
Endurance exercise interventionbehavioral
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05029128
NCT05029128N/ACompleted

Enhancing Skeletal Adaptation to Exercise by Attenuating the Acute Disruption of Calcium Homeostasis During Exercise

VA Office of Research and Development·interventional·Posted Aug 31, 2021·Updated Apr 6, 2026

In Brief

A clinical study evaluating Endurance exercise intervention for Exercise and 2 related conditions. Completed, enrolled 18 participants across 1 site.

Detailed Summary

Exercise is essential for building and maintaining bone mass and strength, but current exercise recommendations for how to achieve this lack detail on the optimal exercise prescription. Recent studies found that blood calcium level decreases during exercise, and that calcium is mobilized from bone to slow the decline. If this occurs repeatedly during exercise training, it could diminish the potential benefits of exercise to improve bone health. The proposed study will determine whether further research on pre-exercise supplemental calcium to minimize the decline in blood calcium level during exercise is warranted. This research is important for Veterans because they are at increased risk of hip fracture when compared with non-Veterans. Further, because osteoporosis in men is under-recognized and under-treated, providing male (and female) Veterans with more specific exercise and nutrition guidelines has the potential to enhance bone health, reduce fracture risk, and improve quality of life.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

N/ACompletedFinished
20222023202420252026
First PostedAug 31, 2021
Enrollment StartJan 1, 2023
Primary CompletionApr 1, 2025
Study CompletionDec 1, 2025
TodayJul 2, 2026
Enrollment to primary: 2.3 yearsPosted 4.8 years ago

Interventions

Endurance exercise interventionbehavioral

All participants engage in treadmill walking 4 days/week, 60 minutes/day, at 70-80% of HRmax for 4 weeks.