From the closing abstract passage
“These data suggest that trends in both absolute HRV values and day-to-day variations may be useful measurements indicative of the progression towards mal-adaptation or…”
A short excerpt, not the complete finding. Read the linked abstract for the comparison, measurements and context.
Publication details
- Record
- PubMed 22367011
- Publication types
- Comparative Study
- Indexed subjects
- Monitoring, Physiologic · Oxygen Consumption · Heart Rate · Physical Endurance · Running
- Source record checked
- 2026-10-16
Publication type and subject indexing describe the record; they are not a quality grade or proof of a benefit. An abstract does not replace a review of the full methods and results.
Adaptive AI coach for iPhone
Meet your adaptive AI coach.
Tell your coach what you are training for. It builds the plan, follows the work you complete, and adapts upcoming training when recovery, your schedule, or real life changes.
Keep going
Performance Science Lab
Research summaries for endurance athletes, with study context, practical protocols, and clear limitations.
Open guideMonitoring performance research
Monitoring is useful when it changes decisions: training load, recovery signals, and pacing control.
Open guideCaffeine for endurance performance: a practical protocol
Evidence-informed protocol: Caffeine for endurance performance: a practical protocol. Practical steps, who it helps, and what to watch out for.
Open guide