Effects of Exercise Snacks on Muscle Size and Strength in Healthy Young Adults

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized, interventional study compares two resistance training regimens over 10 weeks in healthy, untrained adults. One group performs standard two full-body workouts per week, while the other group does ten brief, 5–15 minute workouts weekly. Primary outcomes are changes in muscle size and strength measured before and after the program. The study uses gym-based resistance training and includes testing periods around the training phase to assess training responses. Participants must attend in-person sessions at the Gateway Health Building and use a mobile app to support the program.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Can fluently read and write in English
* Lives, works, and/or studies at or near the Gateway Health Building (where all study visits will occur)
* Willing and able to commit to 2 or 10 in-person training sessions per week for 10 continuous weeks, as well as one week of testing before the training period and one week of testing after the training period
* Has continuous access to smartphone or other device that they can use to access the Technogym app
* Answers "No" to all questions on the Canadian Society for Exercise Physiology - Get Active Questonnaire (CSEP-GAQ) or has their doctor's approval to participate

Exclusion Criteria:

* Any major uncontrolled cardiovascular, muscular, metabolic, and/or neurological disorders
* Lung disease, kidney disease, or liver disease
* Current diagnosis of type 1 diabetes, type 2 diabetes, or cancer
* Medical conditions that limit their ability to undertake strenuous physical activity
* Regular use of any medications that may affect muscle physiology or body composition (i.e. benzodiazepines, hormone replacement therapy, ADHD medication, Metformin, Ozempic)
* Participated in consistent resistance exercise training more than twice per month in the previous 12 months
* Participated in consistent moderate or vigorous aerobic training more than twice per week in the previous 12 months, or planning to start consistent training in the next few months
* Significant gain or loss of body mass in the past 6 months (greater than 2 kg)
* Current smoker (including but not limited to cigarettes, e-cigarettes, or vaping)
* Body Mass Index of less than 18 kg/m2 or over 30 kg/m2
* Pregnancy or breastfeeding
* Currently taking blood thinners
* Allergic to Tegaderm medical tape (used with the activity trackers)

Where it's running

• University of British Columbia | Gateway Health Building
  Vancouver, British Columbia, Canada Recruiting

Study contacts

• Study coordinator: Cameron Mitchell, PhD
• Email: cameron.mitchell@ubc.ca
• Phone: 604-827-2072

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.