How to avoid overtraining when following a running plan

What actually counts as overtraining?

Overtraining is a build-up of fatigue that your body hasn't had the chance to absorb and adapt from. A single hard week that leaves you tired is normal training stress. Overtraining is what happens when that stress keeps stacking, week after week, without enough easy running, sleep or rest days to let the adaptation actually happen. The result isn't just tiredness — performance plateaus or drops even though you're doing more work, not less.

What are the early warning signs?

• Resting heart rate creeping up over several days rather than settling
• Paces that used to feel easy now feel hard at the same effort
• Sleep that's disrupted or unrefreshing despite being tired
• Persistent heavy legs that a normal easy day doesn't shake off
• Irritability, low motivation, or dreading runs you'd normally enjoy
• Getting minor colds or niggles more often than usual

Any one of these on its own is probably just a hard week. Several stacking together, especially over more than a few days, is the pattern worth acting on.

Can you overtrain even if you follow a plan perfectly?

Yes — this is the part that catches people out. A printed or downloaded plan is written for a hypothetical average runner, not for how well you personally slept this week, how stressful work has been, or whether you're still carrying fatigue from a session three days ago. Following it to the letter doesn't protect you if life outside running is adding load the plan can't see. This is exactly where rigid schedules cause the most damage — they keep prescribing hard sessions on top of fatigue the paper plan has no way of knowing about.

How do you build recovery into a running plan?

1. Keep easy days genuinely easy — a conversational pace, not a moderately hard one
2. Increase weekly volume gradually rather than in large jumps; roughly 10% a week is a common, sensible ceiling
3. Schedule at least one full rest or very light day after your hardest sessions
4. Treat sleep as part of training, not separate from it — most adaptation happens while you're asleep
5. Take a lighter recovery week every three to four weeks, even if you feel fine

What should you do if you spot the signs?

Back off before it becomes forced. Swap a hard session for an easy one, take an extra rest day, or cut a long run short — the training you skip this week is far cheaper than the injury or burnout that follows if you push through it. The hardest part is usually psychological: it feels like losing progress, when in practice it's what protects the progress you've already made. This is one area where an adaptive plan earns its keep — a coach that reads your recent training load and recovery signals and quietly eases a session, rather than one that just prints the same schedule regardless of how the week actually went. RunV works this way: it watches load and recovery trends from your watch and adjusts what's ahead instead of asking you to override the plan yourself.