4wk Fitness W2D4W2D4 Author: MarkSport: bikeDuration: 60 minDominant zone: thresholdIntensity: 0.84Updated: 2026-04-22T09:32:12.418ZStructure9 min @ 60% (60w)4X4:12 min @ 100% (100w)6 min @ 75% (75w)4:12 min @ 100% (100w)6 min @ 60% (60w)