Explore how the body's systems support endurance performance. This category covers energy pathways, cardiovascular and muscular adaptations, recovery, nutrition timing, hydration, and how physiology informs pacing and zone training for ultrarunning, foundational endurance work, and advanced sessions.
0 articlesTraining guide path
Archive
Articles in this training path.
Read the guides as a focused product lane, then bring the decision back to the Training Log.
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iPhone product context
Read the guide. Open the log.
The blog explains the training decisions that Zone Training Log keeps visible inside the iOS-style product.
Training Log
Daily review, rest days, and workout cards stay close to the iPhone product.
Summaries
Long-range zone context for runners, cyclists, and mixed training blocks.
Settings
Apple Health, account sync, providers, and billing sit in one calm product family.
