How to get back to endurance training
Easy rides and runs, a small week, and a harder session only after those easy days feel ordinary.
Short answer: Once you can train, start with easy rides or runs you can repeat. Keep the week around two hours. Add one harder session only after those easy days feel ordinary.
A layoff, a long illness, and an injury that has been cleared all start smaller than you remember. Mostly easy, and often enough that the habit comes back.
On this page
- The first weeks
- One change at a time
- When a harder session belongs
- After illness or injury
- Use Based Training
The first weeks
Two or three sessions, with real rest days between them. Most of the time should be easy enough that you can talk, and easy enough that you could train again in a day or two.
Running usually needs the shorter start, because each step is impact. A 30-minute easy jog is a full session on the way back. The long run you used to finish is a later week. If cycling is what hurts, flip that and keep the rides short.
On the bike, a 30-minute easy ride is the same idea. You can sit a little longer than on foot. Stop well short of the old long ride.
If an hour already sounds like too much, stay with short sessions until an hour feels reasonable:
- Easy ride, 30 minutes
- Recovery spin, 40 minutes, very light
- Recovery jog, 30 minutes
Rest is a valid day. An easy spin does not clear a leftover illness.
One change at a time
When a small week feels repeatable, change one thing. A few more minutes, or one extra easy day. Not both. Not a harder session in the same week you add time.
If you are flattened the next day, that week was too big. Repeat the smaller one. Endurance comes back by repeating weeks you can absorb.
A few weeks off is enough for an old easy pace to feel harder. That is expected. Start lower than the numbers you remember.
When a harder session belongs
One controlled session is enough once easy days feel ordinary. A tempo effort, a short threshold run, or a short sweet-spot ride. Pick one. Leave the rest of the week easy.
VO2 intervals and race efforts can wait until the easy week feels dull. Best endurance workouts for running and cycling names those sessions and where the evidence stops.
A 2026 review backs easy training for aerobic fitness. It does not say how many minutes you need. Nuuttila et al., 2026.
After illness or injury
Fever, chest pain, dizziness, or an injury that changes how you move are reasons to wait and talk to a clinician. This page does not clear you to train.
A cough that lingers, or a week that still feels heavy, stays easy. Missed weeks are not a debt. Do not repay them by stacking sessions.
Pain that changes your stride or your pedal stroke is a reason to stop the session. Clearance for a specific injury belongs with a clinician. The small week is what you do after that.
Leave the race date off the first block. A date pulls the long session up. Add it when the easy hours feel ordinary.
Use Based Training
The calendar version of that week is a four-week plan at 2 hours.
Open Build a plan. Coming back from an injury or a long illness, use the low-volume settings:
- Keep riding or Keep running. Leave the dated event off.
- Cycling only or Running only. Strength uses the same weekly hours, so leave it off until easy sessions feel routine.
- Weekly training time: 2 hours. That is the low end. The form runs from 2 to 8 hours, in half-hour steps.
- I’m starting out or returning. “I already ride regularly” or “I already run regularly” leaves that lighter start off.
- A few days, with rest days left empty. The planner will not fill every day you tick.
Press Preview plan before anything lands on the calendar. Read the steps, then accept.
Two hours is the smallest week the planner will build. With two or more days selected, a cycling or running plan looks like this:
- Weeks 1, 2, and 3 stay at about 2 hours. At this setting the first week is the same length as the next two. A lighter opening week only appears when you set more than 2 hours.
- Week 1 includes one tempo session. The other time is easy.
- Weeks 2 and 3 replace that with one sustained session: sweet spot on the bike, threshold on the run. One harder day, then easy riding or running.
- Week 4 drops to about 80 minutes and drops the harder session. Easy only.
That tempo day is how “I’m starting out or returning” is built. Sessions on a cycling-only or running-only plan are about an hour. The 30-minute easy ride and the 30-minute recovery jog are shorter than anything this plan will place. One available day does the same thing on its own: the week becomes a single easy session, because a quality day needs another day beside it.
If a scheduled session is more than you want that day, open it, then Open workout. Rewrite the steps, or type a sentence such as “keep this in Zone 2” and save. Preview shorten trims the duration when the session is just too long. The plan stays. The session changes.
If one session is enough for now, generate that session instead of a four-week block. The easiest way to generate a workout and send it to a device.
For what easy should feel like, see Best endurance workouts for running and cycling.
Limits
- People come back at different speeds. A week that suits a friend can be too much for you.
- Build a plan is marked Beta. Four weeks is the length of this block.
- Week 4 is lighter because of the calendar, not because of how you feel. The 3am check only sees what you recorded.
- You still sync the watch or bike computer yourself. Sessions can go to Wahoo, Garmin, and Karoo.
- This page is not medical advice, and it is not a rehab program.
Common questions
How long does it take to get endurance back?
A couple of quiet weeks, if you were only off for a couple of weeks. Months, if the break was months. The useful check is whether this week’s easy sessions feel repeatable. Raise the week after they do.
Should I run and ride in the same return week?
Pick one until the easy sessions feel routine. Cycling is the gentler aerobic option when running impact is the problem. Add the second sport as easy time, not as a second hard day.
How many hours a week?
About two, across two or three days. That is also the smallest week Based Training will generate. If two hours is already too much, stay with one short session.
Is the plan all easy?
Most of the time is easy. With two or more days, week 1 still has one tempo session, and the next two weeks have one sweet-spot ride or one threshold run. Week 4 is easy only. If that harder day is too much, open it and change it.
Bottom line
Easy sessions you can repeat, about two hours a week. One harder day later, after the easy days feel ordinary. Once the plan is on the calendar, any session can be shortened or rewritten without throwing the week out.