Research
Cellular
Cardiac rehabilitation via traditional moderate-intensity continuous exercise (TRAD) or stair climbing-based high-intensity interval training (STAIR) improved the capillary-to-fiber ratio (C/Fi) in Type II fibers by 23% after 12 weeks.
Both TRAD and STAIR can be effective exercise modalities for improving muscle microvascular health in CAD patients.
StrongSupportsmedium confidence
However, 12 wk of cardiac rehabilitation with either TRAD or STAIR increased C/Fi (Type II, 23% ± 14%, P < 0.001).
Why this rating
The study involves a randomized controlled trial design.
Source
Both Traditional and Stair Climbing–based HIIT Cardiac Rehabilitation Induce Beneficial Muscle Adaptations
Changhyun Lim et al. · Medicine & Science in Sports & Exercise · 2020
DOI 10.1249/mss.0000000000002573
cohort · n=16Cited 9×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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- Cardiac rehabilitation increased the capillary-to-fiber perimeter exchange (CFPE) index in Type I fibers by 10% and in Type II fibers by 18% after 12 weeks.Strong
- Patients with coronary artery disease (CAD) have a lower capillary-to-fiber ratio (C/Fi) and capillary-to-fiber perimeter exchange (CFPE) index in Type II fibers compared to healthy controls.Strong
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