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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.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| High-Intensity Interval Training | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| High-Intensity Interval Training | Behavioral | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| 2-minute Step Test Performance | Cardiovascular endurance metric, number of repetitions a single leg is able to complete in 2 minutes. | Baseline and weekly over the 9 week intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Functional Gait Asssessment | Balance metric, reporting the score out of 30 points | Baseline and weekly over the 9 week intervention |
| 5 times sit to stand | Lower extremity muscular strength. Recording the amount of time to complete 5 sit to stand repetitions. |
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Inclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| UNMC Engage Wellness Medical Fitness Center | Omaha | Nebraska | 68105 | United States |
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| ID | Term |
|---|---|
| D000072696 | High-Intensity Interval Training |
| ID | Term |
|---|---|
| D064797 | Physical Conditioning, Human |
| D015444 | Exercise |
| D009043 | Motor Activity |
| D009068 | Movement |
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|
| Baseline and weekly over the 9 week intervention |
| Grip Strength | Upper Extremity Strength assessment. Peak grip strength measured with hand held dynamometer. | Baseline and weekly over the 9 week intervention |
| Muscle Thickness | Muscle thickness will be recorded via ultrasound | Baseline and weekly over the 9 week intervention |
| Muscle Echo Intensity | Ultrasound images of the vastus lateralis will be obtained and echo intensity for the muscle will be assessed. | Baseline and weekly over the 9 week intervention |
| D009142 |
| Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |