Last night's sleep, HRV, resting heart rate, and the past few workouts add context before you choose today's session.
Each signal can contain noise, disappear for a day, or move for reasons the app cannot see. A useful coach treats the numbers as evidence rather than instructions.
Sleep changes the training day
One poor night does not require rest, but it changes the likely value of a hard session. Several short nights may support a lighter session or mobility work in place of intervals.
HRV and resting heart rate need a trend
Stress, recovery, illness, and day-to-day variation can move HRV and resting heart rate. Read one value beside your recent pattern.
SlopeReady weighs those signals against recent workouts, available time, and your training goal before changing the plan.
Recent workouts show accumulated fatigue
Good sleep cannot erase a heavy week. A long endurance day, hard intervals, and strength work placed close together can leave fatigue that shapes the next session.
Readiness supports one practical decision: make today harder, lighter, or focused on recovery.