Cardio for powerlifters and other lifters: how much, what kind, and when

Cardio for powerlifters has a reputation problem. Half the gym thinks it shrinks your squat. The other half does twenty minutes on the stair climber at a pace that would embarrass a golden retriever and calls it conditioning. Both are wrong, and both are fixable.

The short answer: most lifters should do some cardio, most of it should be easy, and none of the hard stuff should sit the day before heavy legs. That's the whole post in one sentence. The rest is how much, what kind and when, whether you write it into your week by hand or let a workout app that plans both lifting and running do the arithmetic.

Why cardio for powerlifters is worth doing

Not because a doctor on a podcast said so. Because it makes lifting better and life easier:

• ›You recover between sets. A lifter who gets winded walking the bar out of the rack spends the next rest period recovering from the walk instead of the set.
• ›You survive high-volume blocks. Accessory-heavy phases and bodybuilding-style weeks are long sessions. An engine makes the last exercise less of a negotiation.
• ›Stairs stop being an event. This is a low bar. Clear it anyway.
• ›It gives you somewhere to put easy days. Easy aerobic work is the closest thing to active recovery that actually counts as training.

The catch is that cardio added carelessly does compete with lifting, especially for the legs. So it needs a place in the week, not a slot wherever you feel guilty. That's exactly what our hybrid program is built around: the lifting leads, the cardio supports it, and the two never fight over the same day.

If you want the bigger picture of combining both, the hybrid training guide is the hub. This post is just the lifter's end of it.

Does cardio hurt strength? What the research says

The fear has a name, the interference effect, and the research on it is calmer than the gym is.

• ›A 2022 meta-analysis of 43 studies (Schumann et al., 2022) found that adding aerobic training to an identical strength program did not compromise muscle hypertrophy or maximal strength. Explosive strength gains may be blunted, especially when both are done in the same session.
• ›A 2021 meta-analysis of lower-body 1RM (Petré et al., 2021) found concurrent training negatively affected leg press and squat strength gains in trained individuals, but not in untrained or moderately trained people. The authors suggest trained lifters separate endurance from resistance training when maximal strength is the priority.
• ›An older meta-analysis (Wilson et al., 2012) found interference depended on the modality, frequency and duration of the endurance work. More frequent and longer endurance sessions meant more interference.

Read those together and the message for a powerlifter is specific. Your squat and deadlift are the qualities most at risk, you're more at risk the more trained you are, and the risk scales with how much cardio you do and how close you put it to your lifting. That's a dose-and-scheduling problem, not a reason to never get on a bike.

The muscle side of the question, whether cardio kills gains, has its own post. Short version: the usual culprit is eating less and lifting less, not the cardio itself.

What kind of cardio is best for lifters?

Three things decide it: how much it beats up your legs, how much eccentric loading it involves, and whether you'll actually do it.

Wilson's 2012 analysis linked running, but not cycling, to interference; Schumann's larger 2022 analysis found no significant difference between the two. The evidence is mixed, so pick the one you'll repeat for months. For a lifter in a heavy squat block, a bike or a sled is the low-drama choice. For a lifter who enjoys running, running is fine, built up slowly.

Good cardio for bodybuilders

Bodybuilders have one extra concern: cardio during a cut. The best cardio for bodybuilders is the kind that burns some energy without eating into the leg sessions that build the physique. That means mostly easy, low-impact work like incline walking or cycling, done on upper-body days or rest days.

The bigger muscle risk in a cut isn't the cardio anyway. A meta-analysis of resistance training in an energy deficit (Murphy & Koehler, 2022) found lean mass gains were impaired in a deficit while strength gains were comparable, and suggested avoiding deficits larger than 500 kcal per day when trying to preserve lean mass. Cardio is a tool for creating a deficit. Make the deficit modest and the tool stops being scary.

How much cardio should a powerlifter do?

There's no magic number in the literature, so here's the coaching version. Start small, keep most of it easy, and only add more once your lifts are still moving.

"Easy" is the part people get wrong. Easy cardio is easy aerobic work: conversational pace, full sentences, nothing that leaves your legs heavy tomorrow. If you finish a "light" bike session soaked and wrecked, it was a hard session wearing a disguise.

Hard cardio means intervals, sled sprints, conditioning circuits. They build an engine quickly, but they cost recovery, and for a powerlifter recovery is the currency that buys squat PRs. One hard session a week, kept well away from heavy lower-body days, is enough for most lifters.

When to do cardio around lifting

This is where most of the interference lives. The rules:

1. ›Never hard cardio the day before heavy squats or deadlifts. Hard intervals leave tired legs. Tired legs lift less.
2. ›Easy cardio goes almost anywhere. After an upper-body session, on rest days, or as a separate short session.
3. ›Lift first on shared days. A meta-analysis on session order (Murlasits et al., 2018) found lower-body 1RM gains were greater when strength training came before endurance in the same session, while aerobic capacity wasn't affected by the order.
4. ›Split sessions when you can. Schumann's analysis found the explosive-strength hit was most pronounced within the same session and not significant when sessions were at least three hours apart.

A sample powerlifting week with cardio in it:

Notice the interval session sits on Saturday, with Sunday rest and a full day before Monday's squats. Notice nothing hard lives on Wednesday, between the two heavy lower days. That's not clever. It's just not sabotaging yourself.

The reason running and lifting can live in the same week without wrecking each other comes down to this kind of arrangement, and why running and lifting can coexist is the research post behind it.

How to tell if cardio is costing you strength

Watch the bar, not your feelings.

• ›Your top sets stall for two or three weeks while the cardio went up. Cut the cardio back first, not the lifting.
• ›Your legs feel heavy on squat day every week. Move the hard cardio further away.
• ›You're getting lighter without meaning to. You've created a deficit. Eat more.
• ›Your easy cardio isn't easy. Check it against heart rate zones or the talk test. If you can't talk in full sentences, slow down.

If none of those are happening, the cardio isn't hurting you. Keep it.

Mistakes lifters make with cardio

• ›Doing it all hard. Every session a sweaty death march. That's five hard days on top of four lifting days. Most of it should be boring.
• ›Adding it all at once. Zero to five sessions a week is a recovery problem. Wilson's frequency and duration findings, in the wild.
• ›Putting it before heavy lifting. If strength is the goal, the bar comes first.
• ›Dropping it entirely in meet prep and then panicking. Keep one or two short easy sessions. They cost almost nothing.
• ›Picking cardio you hate. Consistency beats the theoretically perfect machine.

How exrsz handles cardio for lifters

exrsz builds one periodized plan from your goal, schedule, level and equipment, with lifting and cardio balanced in it from the start. If strength is the priority, the cardio is placed to support it, easy sessions on light days and hard sessions kept away from heavy legs. It adapts each week to how you actually trained and reshuffles missed sessions so the hard days don't end up stacked.

FAQ

Should powerlifters do cardio?

Yes, in sensible doses. A 2022 meta-analysis found concurrent training didn't compromise maximal strength on average, though trained lifters chasing lower-body maxes may see a cost when cardio is heavy or close to their lifting. Keep most cardio easy and away from heavy leg days.

What is good cardio for bodybuilders?

Low-impact, mostly easy cardio like incline walking, cycling or rowing, done on upper-body days or rest days. It burns energy without competing much with leg training.

How much cardio should a powerlifter do per week?

A common starting point is two or three easy sessions of 20–40 minutes and at most one hard session. Cut back if your top sets stall while cardio goes up.

Should I do cardio before or after lifting?

After, if strength is the goal. A 2018 meta-analysis found lower-body strength gains were greater when lifting came before endurance work in the same session.

Does cardio kill strength gains?

Not when it's programmed well. Interference grows with how often and how long you do endurance work (Wilson et al., 2012), so control the dose and keep hard cardio away from heavy lower-body days.