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Testing the efficacy of high intensity interval training (HIIT), as compared to current research supporting moderate intensity continuous training (MICT), as a means to improve cardiometabolic health after spinal cord injury.
This study aims to challenge the effectiveness of the current aerobic exercise recommendations for individuals with spinal cord injuries (SCI). Currently, moderate intensity continuous training (MICT) is suggested however this study intends to explore the effectiveness of high intensity interval training (HIIT). To do so, approximately 8 individuals with SCI will be undergo a 6 week HIIT intervention consisting of 3 sessions per week. With a focus on cardiometabolic health markers (listed in outcome measure section), we aim to provide support for HIIT as a viable method of mitigating cardiovascular risk in a SCI population.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| High Intensity Interval Training Group | Experimental | Approximately eight individuals with spinal cord injuries will participate in high intensity interval training for 6 weeks |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| High Intensity Interval Training | Other | Participants assigned to this group will perform a very mild 5-minute warm-up (0 resistance, and 60 rpm), followed by 5 one-minute bouts of high intensity exercise, with 90 seconds between each bout. These bouts will be followed by a 3-minute cool down (0 resistance, and 60 rpm). The high-intensity exercise will be performed at an intensity of 17 on the Borg rating of perceived exertion (RPE) scale (very hard), and the 90 second active rest intervals will be performed at an intensity of 7-9 (very, very light - very light). The exercise will be performed on the NuStep machine 3 times a week for 6 weeks. |
| Measure | Description | Time Frame |
|---|---|---|
| Waist circumference (inches) | Central adiposity will be measured by tape measure to monitor possible weight loss | 6 weeks |
| Cholesterol | Total and HDL cholesterol will be measured in serum | 6 weeks |
| Triglycerides | Triglycerides will be measured in serum | 6 weeks |
| Glycated Hemoglobin (HbA1c) | Glycated hemoglobin will be measured in whole blood as an indicator of diabetic risk | 6 weeks |
| Tumor necrosis factor (TNF-a) | TNF-a will be used as an inflammatory representative and will be measured in serum | 6 weeks |
| Interleukin - 10 (IL-10) | IL-10 will will be used as an anti-inflammatory representative and will be measured in serum | 6 weeks |
| Pulse Wave Velocity | Arterial stiffness, a common measure for cardiac risk will be measured | 6 weeks |
| Blood pressure | Measured through a digital cuff, the focus will be on both systolic and diastolic | 6 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Physical Activity Enjoyment Scale (PACES) | All participants will complete the physical activity enjoyment scale (PACES) to indicate enjoyment of HIIT. With a total of 18 questions, options 1 through 7 going from a positive to a negative overall experience with the HIIT protocol will be documented. | 6 weeks |
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Inclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Mitchel Gibson, BKin | Masters Student | Principal Investigator |
| Aaron Donst, BKin | Masters Student | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Brock University | Saint Catherines | Ontario | Canada |
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| ID | Term |
|---|---|
| D024821 | Metabolic Syndrome |
| D002318 | Cardiovascular Diseases |
| D013119 | Spinal Cord Injuries |
| ID | Term |
|---|---|
| D007333 | Insulin Resistance |
| D006946 | Hyperinsulinism |
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
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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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6 week exercise intervention testing the efficacy of high intensity interval training as compared to current research supporting moderate intensity continuous exercise as a means to mitigate cardiometabolic decline following spinal cord injury
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|
| Peak Oxygen Consumption (VO2 peak) | VO2 peak will be measured by a Moxus metabolic cart to determine changes in fitness | 6 weeks |
| C Reactive Protein (CRP) | CRP will will be used as an inflammatory representative and will be measured in serum | 6 weeks |
| Leptin | Leptin will will be used as a body fat representative and will be measured in serum | 6 weeks |
| Adiponectin | Adiponectin will will be used as a surrogate for insulin resistance and will be measured in serum | 6 weeks |
| D009750 |
| Nutritional and Metabolic Diseases |
| D013118 | Spinal Cord Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
| D020196 | Trauma, Nervous System |
| D014947 | Wounds and Injuries |
| D009142 |
| Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |