The Effect of High-Intensity Short-Duration Exercise Versus Moderate-Intensity High-Volume Exercise on Glucose Control

NCT07829042 — Not applicable, Not yet recruiting, 12 participants, University of California, San Francisco

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The Effect of High-Intensity Short-Duration Exercise Versus Moderate-Intensity High-Volume Exercise on Glucose Control as Measured by Continuous Glucose Monitoring

RegistryNCT07829042
StatusNot yet recruiting
PhaseNot applicable
Study typeInterventional; randomized, crossover, masking: none, prevention
Enrollment12 (Estimated)
SponsorUniversity of California, San Francisco (Other)
ConditionsGlucose Control
InterventionsHigh Intensity Interval Training, Moderate Intensity aerobic training (Other)
Datesstart 2026-09-15 (estimated), primary completion 2026-10-15 (estimated), completion 2026-10-20 (estimated), first posted 2026-09-18, last updated 2026-09-22
Locations1 site in United States

Related Papers Related Patents Related Grants Related Experts
All trials for Glucose Control All trials of High Intensity Interval Training All trials of Moderate Intensity aerobic training

-Summary

This study will be conducted as a prospective, randomized crossover trial evaluating non-diabetic and pre-diabetic adults ($n=12$) continuously monitored with Dexcom G7 continuous glucose monitors over an 11-day period. Participants will complete two distinct exercise protocols in a randomized sequence: five consecutive days of Zone 2 aerobic exercise and a single session of high-intensity interval training (HIIT). Primary outcome metrics will focus on mean glucose levels and time in range (TIR, defined as $\\le 120\\text{ mg/dL}$) recorded throughout each active exercise block and its associated recovery window. To evaluate the comparative efficacy of the two modalities, paired within-subject differences will be statistically analyzed against pre-specified non-inferiority margins set at $3\\text{ mg/dL}$ for mean glucose, as well as a primary $3$-point and secondary $5$-point margin for time in range.

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+Arms and interventions

ArmTypeInterventionsDescription
Moderate Intensity ExerciseExperimentalOther: Moderate Intensity aerobic trainingFive consecutive days of moderate intensity aerobic exercise
High Intensity ExerciseActive comparatorOther: High Intensity Interval TrainingOne session High-Intensity Interval training
  • High Intensity Interval Training (Other): The Norwegian 4x4: The workout begins with a 5-to-10-minute warm-up, followed by four separate 4-minute high-intensity intervals where you push your body to 85%-95% of your maximum heart rate (roughly an 8 or 9 out of 10 effort level, where you are breathing too heavily to speak full sentences). Each intense "push" is interspersed with a 3-minute active recovery period of low-intensity movement-such as walking or light cycling-to let your heart rate drop back down to roughly 60%-70% of its maximum before starting the next round.
  • Moderate Intensity aerobic training (Other): 45 minutes of zone 2 training for five consecutive days

+Outcome measures

Primary outcomes

  • Mean Glucose Concentration [Measured continuously over each 5-day exercise/recovery block within the 11-day monitoring period.]: Average glucose level recorded by continuous glucose monitor (CGM) across the exercise intervention block and its subsequent recovery window.
  • Time in Range (TIR) [Measured continuously over each 5-day exercise/recovery block within the 11-day monitoring period.]: Percentage of time spent with sensor glucose values under 120mg/dL during the active exercise block and its recovery window.

+Eligibility

Sex: All, ages: 18 Years to any, accepts healthy volunteers

Inclusion Criteria:

Age 18 years or older Non-diabetic or pre-diabetic status (defined by medical history or standard screening criteria, e.g., HbA1c < 6.5%) Capable and willing to participate in both Zone 2 aerobic exercise and high-intensity interval training (HIIT) protocols Willing to wear a continuous glucose monitor (Dexcom G7) continuously for the 11-day study duration Able to provide written informed consent

Exclusion Criteria:

Diagnosis of Type 1 or Type 2 diabetes Use of glucose-lowering medications, insulin, or other pharmaceuticals that significantly alter glucose metabolism Current skin conditions, allergies, or sensitivities to medical-grade adhesives that prevent continuous glucose monitor placement Musculoskeletal, cardiovascular, or neurological conditions that contraindicate vigorous exercise or high-intensity interval training Pregnant or planning to become pregnant during the study period Concurrent participation in another clinical trial or interventional exercise study

+Locations (1)

FacilityCityCountryStatus
University of California, San FranciscoSan Francisco, CaliforniaUnited States

+Publications

  • Dent JR, Stocks B, Campelj DG, Philp A. Transient changes to metabolic homeostasis initiate mitochondrial adaptation to endurance exercise. Semin Cell Dev Biol. 2023 Jul 15;143:3-16. doi: 10.1016/j.semcdb.2022.03.022. Epub 2022 Mar 26. PMID 35351374
  • Cartee GD. Mechanisms for greater insulin-stimulated glucose uptake in normal and insulin-resistant skeletal muscle after acute exercise. Am J Physiol Endocrinol Metab. 2015 Dec 15;309(12):E949-59. doi: 10.1152/ajpendo.00416.2015. Epub 2015 Oct 20. PMID 26487009
  • Colberg SR, Sigal RJ, Yardley JE, Riddell MC, Dunstan DW, Dempsey PC, Horton ES, Castorino K, Tate DF. Physical Activity/Exercise and Diabetes: A Position Statement of the American Diabetes Association. Diabetes Care. 2016 Nov;39(11):2065-2079. doi: 10.2337/dc16-1728. No abstract available. PMID 27926890
  • Tucker WJ, Fegers-Wustrow I, Halle M, Haykowsky MJ, Chung EH, Kovacic JC. Exercise for Primary and Secondary Prevention of Cardiovascular Disease: JACC Focus Seminar 1/4. J Am Coll Cardiol. 2022 Sep 13;80(11):1091-1106. doi: 10.1016/j.jacc.2022.07.004. PMID 36075680
  • Wei J, Shen M, Li S, Xiao Y, Luo D, Ferrari G, Lee DH, Rezende LFM, Gill JMR, Ahmadi MN, Stamatakis E, Chen X. Volume vs intensity of physical activity and risk of cardiovascular and non-cardiovascular chronic diseases. Eur Heart J. 2026 Mar 29:ehag168. doi: 10.1093/eurheartj/ehag168. Online ahead of print. PMID 41905344

+Investigators

  • Jeanne Noble, MD, Principal investigator, University of California, San Francisco