September 23, 2026 · 12 MIN
Marathon Block Recovery: Managing Cumulative Fatigue in Peak Training
Peak marathon training blocks produce cumulative fatigue that reduces muscle glycogen by 25–40% across a training week and elevates cortisol by 20–35% above baseline. Strategic recovery protocols including glycogen supercompensation days, deload micro-cycles, and targeted sleep extension prevent the overreaching that derails 30% of marathon preparations.
