Run — easy
32 min — 7:19–7:55 /km
- Jog 32 min at 7:19–7:55 /km — slow enough to talk in full sentences the whole way
- Watch on: heart rate stays under ~150. Over it → walk 60 sec, resume slower. Walk breaks are this session done right, not failed
- Then 4 hill sprints: 8 sec UP a steep slope, genuinely max effort, walk ALL the way back down between — leg-speed medicine, too short to be cardio