Timed Exercise Study

Completed · Not applicable

Conditions studied: Circadian Timing - Exercise

In brief

The purpose of this study was to investigate the effect of timed exercise on human circadian rhythms. Subjects were randomized to 5 days of morning or evening treadmill exercise. A measure of internal circadian timing, or phase, was measured at baseline and following the exercise intervention. Change in circadian phase was compared between the morning and evening group.

Key facts

Study ID

NCT04097886

Run by

Julie Pendergast

People needed

67

Starts

2017-06-27

Expected to finish

2019-03-09

Last updated by the study team

2019-09-20

Who can join

Age: 18 and older, up to 45. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• BMI 18.5-40.0
• sedentary; <=2 hrs structured exercise weekly
• medication free (other than birth control)

You may not qualify if…

• diagnosed conditions that would contraindicate safe participation in physical activity
• diagnosed psychiatric conditions
• night or rotating shift work 1-year prior to study
• travel across time zones within previous 4 weeks
• having children <2 years of age
• smoking

Where it is running

• University of Kentucky — Lexington, Kentucky, United States

Full record on ClinicalTrials.gov

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