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Heat therapy and exercise to prevent diabetes in older adults

Plain-English translation of NCT06580964 on ClinicalTrials.gov ↗ · Source last updated June 2026 · Translation generated July 2026 · How we translate trials

This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.

What is this trial?

This study is testing whether local heat therapy applied to your thighs can help improve muscle health, physical fitness, and blood sugar control in people over 50 who are at risk for developing type 2 diabetes. You'll be placed into one of three groups: one receiving real heat therapy, one receiving sham (fake) heat therapy as a control, or one doing high-intensity exercise. The study lasts 24 weeks total, split into two 12-week phases.

Many older adults develop prediabetes (higher-than-normal blood sugar) and become frail as they age. This treatment explores whether heating muscle tissue might offer benefits similar to exercise, or whether it could work even better when combined with exercise — potentially offering a gentler alternative or addition to intense workouts.

Do you qualify?

You likely qualify if…

you are age 50 or older
you are postmenopausal (if female) or male of qualifying age
you have prediabetes, meaning your fasting blood sugar is 100–125 mg/dL or your A1c is 5.7–6.4%
you are currently sedentary, exercising less than 30 minutes per week
you weigh at least 110 pounds
you drink fewer than 8 alcoholic beverages per week (women) or fewer than 15 (men), and do not use nicotine or cannabis

You likely don't qualify if…

you have a history of nerve damage in your limbs (peripheral neuropathy)
you are currently taking prescription blood thinners or medications that could interfere with the study (such as insulin, metformin, certain antidepressants, or beta blockers)
you have significant heart problems, uncontrolled high blood pressure, diagnosed diabetes, kidney disease, or cancer being treated or in remission for less than 6 months
you have a history of slow wound healing or allergies to lidocaine or latex
you have symptoms of heart or lung problems, such as chest pain, shortness of breath, dizziness, or leg pain during activity

What participation looks like

You'll start with three days of baseline testing in the laboratory. Then, for 12 weeks (Phase 1), you'll either use heat pads on both thighs at home 5 days a week (plus one lab visit per week), or attend the lab for exercise training 3 days per week. In Phase 2, all remaining participants do exercise training 3 days per week for another 12 weeks. You'll have three days of testing at the end of each phase. In total, expect 1–2 visits per week over 24 weeks, with some time commitment to home-based heat therapy or structured exercise sessions.

AI-generated summary from trial data · Jul 1, 2026 · Not medical advice

Trial locations(1 site)

United States

Texas Tech University, Lubbock, Texas