Effects of Different Timing of Bodyweight High-intensity Exercise on Human Behaviours

Launched by NATIONAL TAIWAN NORMAL UNIVERSITY · May 7, 2025

Keywords

ClinConnect Summary

This clinical trial is studying how exercising at different times of the day affects eating habits, physical activity, and how much time people spend sitting. The researchers want to understand if the timing of high-intensity bodyweight exercises can influence these behaviors in adults who don't currently exercise much. They are looking for participants who are between 20 and 50 years old, have a body mass index (BMI) between 19 and 27, and have been relatively inactive, doing moderate exercise no more than three times a week.

If you decide to participate, you will be asked to engage in exercise and keep track of your eating and activity levels over a 72-hour period. It's important to note that you must not have any medical conditions that could interfere with the study, such as diabetes or heart problems, and you shouldn't be on any medications that affect your metabolism or appetite. Participants should also have consistent sleep patterns and no habits of heavy drinking or smoking. This study is a great opportunity to contribute to our understanding of how exercise timing can impact healthy living!

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Aged between 20 and 50 years, with a BMI ranging from 19 to 27 kg/m².
• • Classified as having "low" physical activity levels (750 Metabolic Equivalents / week) according to the International Physical Activity Questionnaire (IPAQ).
• • Engaged in moderate-intensity exercise for no more than 3 days per week and less than 30 minutes per session in the 3 months preceding the study.
• • Maintained a stable body weight (± 3 kg) during the 3 months prior to the main experiment.
• • Not taking any medications, supplements, or vitamins that might affect food intake, appetite, physical activity, weight loss, or metabolism.
• • Free from cardiovascular and metabolic diseases.
• • Not pregnant or planning to become pregnant.
• • Not currently on a diet or undergoing any specific dietary interventions (e.g., intermittent fasting, ketogenic diet).
• • No injuries or surgical wounds preventing physical activity.
• • Regular sleep patterns, averaging 7-9 hours per night, with no shift work.
• • No habits of heavy alcohol consumption or smoking.
• Exclusion Criteria:
• • Personal history of/existing diabetes, cardiovascular disease, metabolic disease or dyslipidaemia.
• • Taking medications that may influence lipid or carbohydrate metabolism or immune system function.
• • Unable to take part in exercise for any reason (e.g., injury or disability) or a positive response to any questions on the Physical Activity Readiness questionnaire (PAR-Q).