Post long run recovery: what to do after a long run

Post long run recovery is not complicated. Keep moving for a few minutes, eat a proper meal with carbs and protein, drink enough to replace what you sweated out, sleep, and make the next day easy or off. No heavy leg session the day after. That's nearly all of it, and the rest is mostly products you don't need.

The long run is the most fatiguing session of most training weeks, even though it's slow. People treat the hours after it as an afterthought, then wonder why Tuesday's intervals feel like wading through soup. Below is what to do after a long run, hour by hour and day by day, and how to fit lifting around it. Do it by hand, or let exrsz, the AI coach put the long run and the leg day on the right days for you.

Post long run recovery: the short version

These are coaching conventions, not lab-tested rules. A 60-minute long run for a 10K plan costs less than a 20-miler in a marathon build. Scale accordingly.

The week the long run sits in matters more than any of the above. A plan where the long run has space around it, like a free hybrid workout plan that keeps heavy legs away from it, recovers itself. A plan that puts squats on Saturday and the long run on Sunday is asking the recovery to do the planning's job.

Why the long run needs real recovery

Two reasons. It empties your fuel tank, and it beats up your legs for a long time at low intensity. The low intensity is what fools people: you weren't breathing hard, so it doesn't feel like a hard session. Your quads and calves did a couple of hours of eccentric loading anyway.

That's why the long run counts as a hard day in any sensible week. The day after it is a recovery day, which works exactly like any other rest day. There's more on rest days and what to actually do on them, but the short version is walk, eat, sleep, and don't turn it into a secret training day.

The first hour after a long run

Keep moving briefly. Walk or jog very slowly for five to ten minutes. It's mostly about coming down gradually rather than going from running to standing still.

Drink. The joint position stand from the ACSM, the Academy of Nutrition and Dietetics and Dietitians of Canada notes that a loss of 1 kg of body weight during exercise represents roughly 1 L of sweat, and that effective rehydration means drinking more than the deficit, around 1.25 to 1.5 L of fluid for every 1 kg lost, because you keep losing fluid afterward (Thomas, Erdman and Burke, 2016). It also says sodium from food or drinks helps you hold on to the fluid. You don't need to weigh yourself after every run. Drink with your post-run food, and keep sipping through the afternoon.

Eat. Carbohydrate and protein, once your stomach settles. The same position stand recommends about 0.25 to 0.3 g of protein per kilogram after key sessions, roughly 15 to 25 g across typical body sizes, repeated every three to five hours over the day (Thomas, Erdman and Burke, 2016). A bowl of yogurt and granola, eggs on toast, a recovery shake, a sandwich: all of these count.

Do you need to rush the carbs?

Only if you're training hard again soon. The position stand's "speedy refuelling" target, 1 to 1.2 g of carbohydrate per kilogram per hour for the first four hours, is specifically for when there's less than eight hours before the next demanding session (Thomas, Erdman and Burke, 2016). After a Sunday long run with nothing hard until Tuesday, normal meals with plenty of carbohydrate over the rest of the day are enough.

This is general guidance, not a personal prescription. If you have diabetes, a GI condition, a history of disordered eating or anything clinical, talk to a doctor or registered dietitian.

The rest of the day

• ›A proper meal. Carb-forward, with protein. You burned a lot, so eat like it.
• ›A short walk later. Loosens things up better than six hours on the couch.
• ›Sleep. Boring and effective. If you can go to bed earlier, do.
• ›Recovery tools are optional. Foam rolling, compression or massage are fine if they make you feel better. None of them replace food, fluid and sleep, and the evidence for most of them is small.

One exception worth knowing if you lift: in a 12-week study, men who took a 10-minute cold water immersion after every strength session gained less strength and muscle mass than those who did active recovery instead (Roberts et al., 2015). That study was about lifting, not running. But if you're a hybrid athlete taking an ice bath after every hard session, it's worth knowing.

The day after a long run

Easy or off. Pick one:

• ›Rest. A walk counts.
• ›A short recovery run. 20 to 30 minutes, genuinely conversational. If it feels like work, walk instead.
• ›Cross-training. An easy spin or swim.
• ›Upper-body lifting. Fine, as long as it's not a two-hour ego session.

What it should not be: intervals, a tempo run, or heavy squats and deadlifts. That's the classic hybrid mistake, and it costs you both sessions.

If you're on a running streak, the day after the long run is where streaks quietly do damage. Whether is running every day bad for you has a good answer depends a lot on whether this day is truly easy.

Lifting after a long run

The long run and leg day fight over the same legs. The rules that keep the peace:

Sore after the long run? Easy movement usually helps, and training while sore is usually fine at lower intensity. Sore and slow for three days? The run was too long, too fast, or both.

Signs you didn't recover

One long run leaves you tired. It shouldn't leave you broken. Watch for:

• ›Legs still heavy two or three days later
• ›Easy runs that feel hard at your normal easy pace
• ›Poor sleep, low mood, or dreading the next session
• ›Something sharp or specific that hurts more as you run

The first three, once, mean back off for a few days. The first three, week after week, are a load problem. That's when recovering from overtraining becomes a real topic rather than a search term, and the difference between a hard block and a hole you've dug is the line between overreaching vs overtraining. The last one, sharp or specific pain, is a reason to stop running and see a professional.

Common mistakes after a long run

• ›Skipping food because you're "not hungry". Appetite often shows up hours later. Eat anyway.
• ›Running the long run too fast. Recovery starts during the run. Easy pace means easier recovery.
• ›Heavy legs the next day. Two bad sessions for the price of one.
• ›Racing the Monday recovery run. It's a recovery run. The name is a hint.
• ›Buying recovery instead of doing it. Food, fluid and sleep first.

How exrsz handles post long run recovery

exrsz builds a periodized plan from your goal, schedule, level and equipment, with running and lifting balanced in one plan, so heavy leg days stay away from the long run and the day after it stays easy. It adapts each week to how you actually trained and reshuffles missed sessions instead of stacking them.

FAQ

What should I do after a long run?

Walk or jog easily for a few minutes, drink, and eat something with carbs and protein once your stomach settles. Then a normal meal, a good night's sleep, and an easy day or rest day tomorrow.

What should I eat after a long run?

Carbs and protein. One position stand suggests about 0.25 to 0.3 g of protein per kg after key sessions, roughly 15 to 25 g, plus plenty of carbohydrate over your next meals (Thomas, Erdman and Burke, 2016).

Should I run the day after a long run?

You can, if it's short and genuinely easy, around 20 to 30 minutes at a conversational pace. A rest day or a walk is just as good.

Can I lift weights after a long run?

Upper body, yes, later that day or the next. Keep heavy lower-body work at least two days away from the long run on either side.

How long does it take to recover from a long run?

For most well-paced long runs, a day or two. If your legs are still heavy and easy runs feel hard after three days, the run was probably too long or too fast for where your training is.