Time of Day Effects Anaerobic Performance using a Non-Motorized Treadmill

Time of Day Effects Anaerobic Performance using a Non-Motorized Treadmill

This research is examining time of day effects on sprint test performance and heart rate variability. It is also evaluating potential effects of circadian chronotypes on performance at different times throughout the day. For this study, participants will report to the lab on 5 occasions. The first two visits will be familiarization trials of the sprint test on a non-motorized treadmill (Woodway Curve). The last three visits will be testing sessions consisting of temperature, body composition, heart rate variability, and sprint performance assessments. These visits will be completed at ~9:00am, ~2:00pm, and ~7:00pm in the same 24 hour period and in a randomized order. Each visit will last approximately 30 minutes.

Inclusion Qualifications:

  • Male or female between the ages of 18-35 years old
  • Recreationally active (3+ days/week)
  • Free of any physical limitations

Exclusion Qualifications:

You may not participate in this research opportunity if any of the following applies to you:
  • Has physical limitations, including injuries, that prohibit participant from performing any assessment associated with this study
  • Inactive (exercises less than 3 days/week)
  • Any response of “yes” on the PAR-Q+

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UCF IRB#: STUDY00002986
PI: David Fukuda
IRB Expiration May 10, 2022
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Recruitment End Date:
February 18, 2022
Education Complex
12494 University Blvd.
Room 174b (POWER lab)
Orlando, FL 32816
Time Commitment:
Number of visits: 5
Expected time per visit: 30 minutes
Point of Contact:
Justine Renziehausen
Faculty Advisors:
David Fukuda
Associated Units:
Exercise Physiology & Rehabilitation Science
Short URL:

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