Breaking Prolonged Sitting with High-intensity Interval Training to Improve Cognitive and Brain Health in Older Adults: a Pilot Feasibility Trial.
University of Illinois at Urbana-Champaign
Summary
This trial will examine whether interrupting 3.5 hours of sitting every 30 min with 6 min high intensity interval training (HIIT) breaks compared to light intensity interval training (LIIT) will improve brain health in cognitively normal older adults. This trial will test the feasibility of HIIT breaks to sitting. It will also address several important but unanswered questions: (1) Does interrupting sitting with short HIIT breaks improve frontoparietal function? (2) Can interrupting sitting with HIIT breaks improve cognitive functions?
Description
The investigators are conducting an acute, single site randomized crossover trial testing two conditions lasting 3.5 hours each with a one to four-weeks washout period: (1) Interrupting sitting with 6 min of high-intensity interval training (HIIT) every 30 min, and (2) interrupting sitting with 6-min light-intensity interval training (LIIT) every 30 min. Investigators will administer the conditions in a counterbalanced order to 54 older adults (40-75 years). Brain function will be assessed using event-related brain potentials and measures of functional connectivity derived from electroencephal…
Eligibility
- Age range
- 40–75 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: 1. Age 40-75 years 2. BMI \<40 kg/m2 3. Sedentary (≥ 6 h/day sitting by a survey question) 4. Physically inactive adults based on the CSEP-PATH: Physical Activity and Sedentayr Behaviour Questionnaire (PASB-Q) Adult (low or medium physical activity range equivalent to less than 300 min of moderate intensity physical activity per week) 5. Capable of exercising vigorously based on the Physical Activity Readiness Questionnaire (PARQ+) 6. Has a medical clearance for maximal exercise and HIIT from a physician 7. Normotensive or participant's blood pressure is controlled 8. Inte…
Interventions
- BehavioralHigh-Intensity Interval Training (HIIT) Breaks to Sitting
HIIT Breaks: a 3.5-hour sitting will be interrupted every 30 min with 6-min HIIT Breaks. During sitting participants will engage in standardized sedentary activities. Each 6-min HIIT break comprises a one-minute warm-up, followed by a 2-minute high-intensity interval, one minute rest (sitting on a cycle ergometer) followed by another 2 minutes at high intensity.
- BehavioralLight-Intensity Interval Training (LIIT) Breaks to Sitting
LIIT Breaks: a 3.5-hour sitting will be interrupted every 30 min with 6-min LIIT Breaks. Each 6-min LIIT break comprises a one-minute warm-up, followed by a 2-minute light-intensity interval, one minute rest (sitting on a cycle ergometer) followed by another 2-minute light-intensity interval.
Location
- University of Illinois at Urbana-ChampaignUrbana, Illinois