Early Participation in Cardiac Rehabilitation Exercise Programming Further Improves Aerobic Capacity Post Myocardial Infarction
Bibliographic record
Abstract
Aerobic capacity is an important outcome of exercise based cardiac rehabilitation (CR) programs as it is a strong predictor of cardiac related death. Following a myocardial infarction (MI), engaging in aerobic exercise CR programming improves aerobic capacity, however, optimal timing of this programming remains controversial. PURPOSE: To determine if there are differences in aerobic capacity between subjects who engage in early compared to usual timing of aerobic exercise CR programming post MI. METHODS: One hundred and one patients diagnosed with a low risk (CADILLAC score 0-2) ST elevation MI participated in this analysis. Fifty three subjects (91% male, age: 56.1 ±9.1 years) were allocated to the Early Exercise arm, while forty eight subjects (81% male, age: 56.9 ±10.5 years), identified retrospectively and matched for Early Exercise criterion, served as the Usual Care comparison group. All subjects participated in a 12 week outpatient CR aerobic exercise program and underwent maximal exercise treadmill stress testing using BRUCE protocol, at baseline and at completion of their program. RESULTS: The following results are reported Early Exercise versus Usual Care group throughout. The time between MI event and baseline exercise testing was significantly shorter in the Early Exercise group (11.7 ±14.6 vs. 61.5 ±33.3 days, p<0.001). Baseline peak metabolic equivalent (MET) level was not significantly different (8.3 ±1.8 vs. 7.8 ±1.8 METs, p=0.25) between groups. While both groups experienced a significant improvement in post CR peak MET level (p<0.001) the mean change was significantly greater in the Early Exercise group (1.4 ±0.98 vs. 0.76 ±1.1 METs, p<0.005). CONCLUSION: The results of the present investigation are consistent with the vast body of previous literature demonstrating CR leads to a significant improvement in aerobic capacity. However, the mean improvement in aerobic capacity was significantly greater in the Early Exercise group compared to subjects entering Usual Care outpatient CR according to a more traditional initiation of exercise time-line. Hypotheses for this outcome include: 1) Less sedentary lifestyle-induced deconditioning following hospital discharge in the Early Exercise group and 2) Early cardiac follow-up care post MI leading to improved exercise compliance.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| 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) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".