Two-Week Stair-Climbing “Exercise Snacks” to Test Metabolic Health
Official title: Effects of a Two-Week Stair-Climbing "Exercise Snacks" Intervention on Body Composition, Cardiovascular Fitness, and Metabolic Responses in Overweight and Obese Adults: A Pilot Study
Run by St. Louis University · NCT07849439 · Data updated 2026-11-12
In adults with overweight or obesity who don’t exercise regularly, a two-week program of short stair climbs throughout the day will be tested to see if it improves metabolic health and fitness.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 35 Years |
| Sex | All |
| Enrollment | 12 (estimated) |
| Sponsor | St. Louis University Academic / other |
| Locations | 1 site (St Louis, Missouri) |
| Status | Recruiting |
| Started | October 2026 |
| Main results expected | July 2027 |
| Study ends | July 2027 |
| Registry record updated | September 30, 2026 |
| Trial ID | NCT07849439 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 18-35 with BMI 25.0–34.9 kg/m², who are healthy aside from being overweight/obese and not regularly exercising.
✕Probably not a fit
Individuals with chronic diseases, cardiovascular or metabolic conditions, or those who cannot safely climb stairs may not benefit from this intervention.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This pilot interventional study will test whether brief stair-climbing bouts spread across each day for 14 days can improve metabolic and cardiovascular health in adults with overweight or obesity. About 12 participants will complete baseline measurements, a two-week stair-climbing intervention, and post-intervention assessments at Saint Louis University, including continuous glucose monitoring and a standardized meal challenge. Outcomes will include postprandial glucose responses, aerobic and anaerobic fitness, body composition, waist circumference, and strength, along with adherence and perceived intensity. The study aims to assess short-term feasibility and potential health benefits of incorporating frequent brief activity into daily life.
Why it matters
Potential benefit: If successful, participants may experience better blood glucose control and overall metabolic health from a time-efficient physical activity approach.
How similar studies have gone: Prior short, intermittent activity interventions have shown feasibility and potential metabolic benefits, but this exact stair-climbing snack approach is exploratory in this population.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18-35 years and able to provide informed consent. * Body mass index (BMI) 25.0-34.99 kg/m² and otherwise healthy, without chronic disease. * Sedentary or low-active lifestyle, defined as no regular structured exercise ≥3 days/week for ≥30 minutes per session during the past 3 months. * Access to a safe staircase that permits completion of approximately 60 total stair steps per exercise bout. Approximately 60 upward steps are preferred when available; one or more flights may be used repeatedly if needed. * No contraindications or increased-risk findings identified on the PAR-Q+ or health history screening. Exclusion Criteria: * Known cardiovascular, pulmonary, metabolic, renal, neurological, or musculoskeletal disease, or signs or symptoms suggesting increased risk during vigorous exercise, including diagnosed diabetes mellitus, cardiovascular disease, uncontrolled hypertension, chronic pulmonary disease, kidney disease, fainting or unexplained dizziness during exercise, chest pain with exertion, or severe shortness of breath with mild-to-moderate activity. * Current use of medications that may affect exercise tolerance, heart-rate response, balance, glucose metabolism, or safety during vigorous exercise, including insulin or other glucose-lowering medications, beta-blockers, anti-arrhythmic medications, systemic corticosteroids, or medications that may cause dizziness, impaired balance, or altered exercise response. * Orthopedic or joint conditions that could be aggravated by repeated stair climbing. * Allergy, intolerance, dietary restriction, or other condition preventing safe consumption of the standardized meal replacement shake. * Pregnancy or plans to become pregnant during the study period. * Any other medical or psychological condition that, in the investigator's judgment, could make adherence difficult or place the participant at risk. * Individuals currently enrolled in a course taught by the PI or other study personnel, or who are directly supervised, graded, or formally evaluated by a member of the study team.
Where it's running
-
Saint Louis University
St Louis, Missouri, United States Recruiting
Study contacts
- Principal investigator: Hossein Rafiei, PhD, RD — St. Louis University
- Study coordinator: Hossein Rafiei, PhD, RD
- Email: hossein.rafiei@health.slu.edu
- Phone: 314-977-8675
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.