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Session debriefThreshold
Threshold climb 4x8min
Sentier des Crêtes, Salève
Tuesday, April 8 2026Duration1h12D+580m
01What happened
Observation
You lost 18s/km on the descent between km 14–17 compared to your usual GAP pace.
GAP pace deviation (s/km)
Normalkm 14–17
02Why
Diagnosis
Quad fatigue from the steep early climb. Blood glucose was likely dropping around km 14.
03What changes next week
Terrain adjustment
Saturday's long run uses the east face of Mont Lachat: same total D+ (820m), but the first 500m spread over 5km instead of 3. Goal: build eccentric quad strength progressively.
04Why that terrain
Justification
By targeting a more gradual climb, we avoid early quad fatigue. In 3 weeks, we retest the steep profile to measure progress.
Segmnt
Adaptive terrain coaching
Tuesday, April 8 2026
Segmnt · Private beta
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