Keep stacking healthy training blocks.
Label each injury by the specific tendon, muscle, or bone affected — e.g. "Left Achilles Tendon" or "Right Peroneal Tendon" rather than "Lower Leg".
No injuries added yet.
No check-in data yet. Complete a morning or evening check-in to start tracking symptoms.
No activity data yet. Sync your Strava activities to get started.
No manually logged activities yet.
Use this scale consistently each morning. Honest numbers over time reveal patterns your body can't fake.
StayStacking helps endurance athletes build fitness without breaking down. It tracks your training load so you can stack healthy weeks, not injuries.
Your weekly load is tracked across distance, elevation, time, and heart rate zones. Use the buttons above the chart to switch between views. Sudden week-over-week spikes are the primary warning sign of injury risk — a gradual, consistent build is the goal.
You can revisit this guide any time by tapping the ? button at the bottom right of the screen.
To log manual activities, StayStacking needs write access to Strava. Sign out and reconnect to grant access.