Track – C Pack – 2 sets: 1km, 800m, 600m, 400m (1km = 10k race pace)(800s, 600s, 400s = progressively faster) 200m rec between reps – 400m rec between sets
2 sets: 1km, 800m, 600m, 400m (1km = 10k race pace)(800s, 600s, 400s = progressively faster) 200m rec between reps - 400m rec between sets