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Human Subject Research Opportunities

Human participants are critical to the success of our research studies. Human Physiology studies cover a wide variety of research of the human body.

Come help us!

Acute Hot Tub Study

We are currently recruiting healthy paraplegic individuals for a study investigating the acute effects of hot tubbing. The study involves one screening session (60 min) and one experimental session (up to 3 hours), which includes 60 min in a hot tub. Subjects must be fasted from food and caffeine on study day and must refrain from all over-the-counter medications and exercise for 24 hours.

Upon participation, subjects will be compensated up to $40.

Eligible? Spinal cord injury at T4 or below (paraplegic; motor complete), Ages 18-50; no smoking, heart disease or other chronic diseases; women must not be pregnant or currently breast-feeding; men must not be undergoing treatment to increase sperm counts

If you are interested in participating, please contact Emily Larson via Email: or phone: 541‐346‐4507

Hot Tub Study for Women

The DEPARTMENT OF HUMAN PHYSIOLOGY at the UNIVERSITY OF OREGON is currently recruiting women with a Body Mass Index (BMI) between 30-45 for a study investigating the effects of long-term heat exposure on cardiovascular and metabolic health.

The study involves sitting in a hot tub 3-4 times per week for 8-10 weeks (one hour per session), with testing at the beginning, middle, and end of the 8 weeks to look at possible changes in cardiovascular and metabolic health.


  • Female
  • Between age 18-40
  • Body mass index (BMI) between 30-45 kg/m2
  • No smoking, heart disease, or diabetes (slightly high blood pressure and pre-diabetes are okay)
  • Not pregnant or currently breast feeding



  • Screening session (<1 hour)
  • 30 heating sessions over 8-10 weeks (1-1.5 hours each)
  • 8 experimental sessions: 3 prior to and 3 following the 8-10 weeks of heating, 2 after 4-5 weeks of heating (2-4 hours each).


If interested please contact Brett Ely, M.S. at

Upon participation in this study, subjects will be compensated for their time up to $400.

Muscle Temperature

Healthy, non-smoking males and females, age 18-40, are needed for studies on how muscle temperature changes when exposed to a heat source.

Subjects can be “sedentary” or “recreationally active”, but not engaging in more than 5 hours of exercise a week. Subjects must not be on any medications (oral contraceptives acceptable), must not be taking herbal remedies or dietary supplements, and cannot be pregnant or currently breast-feeding. Subjects may not be using illegal/recreational drugs.

Subjects must not have had prior allergic reactions to drugs or medication, specifically histamine receptor blockers (e.g.fexofenadine/Allegra, ranitidine/Zantac) and not be currently taking non-steroidal anti-inflammatory medications (NSAIDs). Subjects will be excluded if they have a pacemaker and/or have had any surgical procedure below the mid-section.  Participants will not be allowed to participate in vigorous exercise before and one week after the study. The study lasts approximately 3 hours. This study is being conducted in the Department of Human Physiology at the University of Oregon. This study is sponsored by the National Institute of Health. Subjects will be compensated for their participation in this study. If interested please contact Josh Mangum at 541-600-4095 or email