Age-related Strength Loss
Conditions
Keywords
high-intensity interval training, older adults
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.
Interventions
BEHAVIORALHigh-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.
Sponsors
Creighton University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
50 Years to 95 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| Functional Gait Asssessment | Baseline and weekly over the 9 week intervention | Balance metric, reporting the score out of 30 points |
| 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 |
| 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. |
Countries
United States
Outcome results
None listed