Examining the impact of a 10-week HIIT exercise program on recent cardiac rehabilitation graduates: a case for cardiac maintenance
Bibliographic record
Abstract
Abstract Introduction Exercise-based cardiac rehabilitation has been shown to improve aerobic capacity and mental health (i.e. anxiety and depression) and reduce the risk of a secondary cardiac event. Following hospital-based cardiac rehabilitation programs, patients are left largely on their own to return to their normal routines with no continuation of support for continued exercise training; many lack sufficient exercise experience and confidence to continue a regimen independently. High intensity interval training (HIIT) is effective when integrated into cardiac rehabilitation, but its effectiveness in a community setting is not established. Purpose To evaluate implementation of a HIIT exercise protocol into a community cardiac maintenance program, developed to provide supervised exercise training for graduates of hospital-based cardiac rehabilitation. Methods Recent (<1 year) graduates of hospital based cardiac rehabilitation patients were recruited to complete the 10-week program. Exercise sessions occurred 3 days per week for 50 minutes per session and consisted of the following: 1 day of strength training, 1 day of individual HIIT, and 1 day of group-based HIIT. Intensity prescription was based on ratings of perceived exertion (RPE). Aerobic intervals consisted of 4 minutes of high intensity (i.e. RPE of 15-17) and 3 minutes of low intensity (i.e. RPE of 9-11) on a modality of the participants choosing. RPE was recorded at the beginning, mid-point, and end of each interval to ensure intensity targets were being met. Assessments were completed at pre- and post-program for (1) physical fitness using the Seniors Fitness test; (2) mental health using the hospital anxiety and depression scale (HADS) and subscales HADS, for anxiety (HADS-A) and depression (HADS-D); and, (3) self-efficacy using the self-efficacy for exercise (SEE) questionnaire. Results To date, 17 participants (age: 66.9 ± 7.6 years (range: 48-75) [100% male]) have completed the 10-week HIIT program, and data collection is ongoing. Significant improvements have been observed in physical fitness, specifically in the 6MWT (pre: 526 post: 570m; p-value = <0.01) and in SEE (pre: 30.7 ± 9.0 post: 73.9 ± 12.8, p-value = <0.01). While no significant changes have occurred in the HADS-A (pre: 3.8 ± 3.4 post: p-value = 0.22) or HADS-D (pre: 3.9 ± 2.1, post: 2.2 ± 1.9; p-value = 0.17) clinically meaningful changes were noted in the HADS-D. Conclusion These results suggest that continued supervised exercise training in a community setting is effective for improving physical and mental health and increases self-efficacy for exercise in recent hospital-based cardiac rehabilitation settings. Future research should evaluate ways to increase female participation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.006 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".