High-Intensity Interval Training in a Community Gym

Not Applicable

Not yet recruiting

• Conditions: Age-related Strength Loss

• Registration Number: NCT06976060
• Lead Sponsor: Creighton University

Brief 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.

Study Timeline

• Status Verified: 2025-05
• Study First Submitted: 2025-05-09
• Study First Submitted QC: 2025-05-09
• Last Update Submitted: 2025-05-09
• Study First Posted: 2025-05-16
• Last Update Posted: 2025-05-16
• Study Start: 2025-06
• Primary Completion: 2025-07
• Study Completion: 2025-07

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• no contraindications to exercise (PAR-Q+)
• do not have severe mental impairment (>14 on the SAGE)
• ability to walk 100 ft without the use of an assistive device

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Primary Outcome Measures

Name	Time	Method
2-minute Step Test Performance	Baseline and weekly over the 9 week intervention	Cardiovascular endurance metric, number of repetitions a single leg is able to complete in 2 minutes.

Secondary Outcome Measures

Name	Time	Method
5 times sit to stand	Baseline and weekly over the 9 week intervention	Lower extremity muscular strength. Recording the amount of time to complete 5 sit to stand repetitions.
Grip Strength	Baseline and weekly over the 9 week intervention	Upper Extremity Strength assessment. Peak grip strength measured with hand held dynamometer.
Muscle Thickness	Baseline and weekly over the 9 week intervention	Muscle thickness will be recorded via ultrasound
Functional Gait Asssessment	Baseline and weekly over the 9 week intervention	Balance metric, reporting the score out of 30 points
Muscle Echo Intensity	Baseline and weekly over the 9 week intervention	Ultrasound images of the vastus lateralis will be obtained and echo intensity for the muscle will be assessed.

Trial Locations

Locations (1)

UNMC Engage Wellness Medical Fitness Center; 🇺🇸 Omaha, Nebraska, United States