NCT06976060

High-Intensity Interval Training in a Community Gym

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 6 (actual)
• Sponsor: Creighton University · Academic / Other
• Sex: All
• Age: 50 Years – 95 Years
• Healthy volunteers: Accepted

Summary

This study will deliver a 9 week high intensity interval training (HIIT) class using functional movements within a community based gym. The class will be twice a week. Outcomes are focused on cardiovascular endurance, balance, strength and muscle size and muscle quality changes. The outcomes will be assessed weekly.

Detailed description

We will measure cardiovascular endurance (2-minute Step Test; 2MST), balance (Functional Gait Assessment; FGA), muscular strength (Grip Strength and 5 times sit-to-stand; 5xSTS) and muscle size (thickness) and quality (echo intensity) on a weekly basis over the 9 week HIIT class.

Conditions

• Age-related Strength Loss

Interventions

Type	Name	Description
BEHAVIORAL	High-Intensity Interval Training	High-intensity interval training (HIIT) sessions will occur twice per week, on non-consecutive days. Each training session will last 45-60 minutes and consist of eight functional movement exercises incorporating the entire body (upper body, lower body, core/stability, cycling, and agility). Participants will complete two rounds of the 8-exercise circuit with 2-minutes of rest between rounds. The load/resistance used for each exercise will be self-selected by the participants that equates to 15-18 on the RPE scale. During each round, participants will have 1 minute to complete as many repetitions as possible of a given exercise and then have 1 minute of rest before completing the next exercise - giving the participants a 1:1 exercise-to-rest ratio.

Timeline

• Start date: 2025-06-03
• Primary completion: 2025-08-07
• Completion: 2025-08-07
• First posted: 2025-05-16
• Last updated: 2025-09-22

Locations

1 site across 1 country: United States