Zone 2 training: Explaining the latest trend in fitness

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Zone 2 training is getting a batch of buzz successful nan fittingness world. But what is it and should you care?

MICHEL MARTIN, HOST:

Hey, A.

A MARTÍNEZ, HOST:

Yes.

MARTIN: Did you get a workout successful this weekend? How'd it go?

MARTÍNEZ: I sewage two. One was an easy one, and nan 2nd 1 was I put myself done nan ringer.

MARTIN: (Laughter) Excruciating. OK.

MARTÍNEZ: Yes. Yeah.

MARTIN: Well, successful nan world of master sports and fitness, group talk astir training zones arsenic benignant of spectrum of strength from ray workout to really huffing and puffing - sounds for illustration that was you. For much casual athletes, 1 area successful peculiar is getting a batch of attraction - Zone 2. NPR's Will Stone has this report.

WILL STONE, BYLINE: Ask Carl Foster astir nan merits of Zone 2 training, and first, you'll get a question.

CARL FOSTER: What Zone 2 are you talking about?

STONE: The reply tin dangle connected nan sport, nan state aliases moreover nan benignant of interrogator you are. For instance, Foster is an workout physiologist.

FOSTER: And we thin to deliberation successful position of only 3 zones. And Zone 2 is benignant of nan mediate zone, and it's athletic.

STONE: Tough. You're not wholly astatine your max, though. And Foster says location are thresholds you tin intelligibly measurement pinch humor tests and breathing patterns. But if you tally into Zone 2 chatter these days, chances are, this is not nan strength group are talking about. Instead, they're describing thing much chill - you tin do for longer periods of time.

FOSTER: And Zone 2 is you tin do a batch of training, and you tin get a batch of use pinch very minimal pain. And truthful that's attractive.

STONE: Here, Zone 2 sits connected nan little extremity of a five- aliases six-zone scale, possibly moreover more. Stephen Seiler is an workout interrogator astatine nan University of Agder successful Norway. He says master cycling has fueled nan existent Zone 2 phenomenon. Because athletes are doing agelong training rides, they request to fine-tune their low-intensity work. But translating each this to nan wide nationalist and different endurance sports tin get tricky.

STEPHEN SEILER: There's not a magic zone. That's what nan investigation tells us.

STONE: Unlike elite athletes, nan mean runner doesn't needfully person this wide scope of lower-intensity effort.

SEILER: It tin beryllium very narrow. I cognize that by acquisition coming backmost into moving and emotion like, oh, my goodness, I tin hardly tally earlier I'm starting to consciousness for illustration this is nary fun.

STONE: Seiler has popularized polarized training. The thought present is that astir of your endurance training should beryllium successful this easier, much sustainable realm, and past a smaller percent astatine higher intensity. This is based connected investigation of apical athletes. But Seiler says nan rule is adjuvant for each of america because...

SEILER: The astir communal correction is everybody ends up - their workouts each benignant of regress towards nan middle. And there's thing incorrect pinch that benignant of workout, but if you do it each day, if you do it each clip you train, past you stagnate beautiful quickly.

STONE: So to debar slipping into that pattern, he says location are immoderate elemental hacks for uncovering this Zone 2 space. You tin fundamentally person a conversation. Your bosom complaint levels retired aft 10 to 15 minutes, and you tin eat beautiful quickly aft nan workout.

SEILER: Then, yeah, different days you're going to train harder, but you're putting together - you're composing an orchestra of training that's not each 1 note.

STONE: Now, immoderate of nan caller enthusiasm astir Zone 2 is based connected claims that it has typical metabolic benefits, including for burning fat that make it better. Brendon Gurd astatine Queen's University successful Canada says nan information don't really support that.

BRENDON GURD: If you conscionable want to get a small spot fitter and beryllium progressive and beryllium healthier, Zone 2 is great, but if you want to benignant of maximize your 4 hours a week, nan champion 4 hours is astir apt going to beryllium precocious intensity.

STONE: Billy Sperlich astatine nan University of Wurzburg successful Germany agrees. If you're conscionable looking astatine return connected finance for cardiovascular benefits, burning energy, precocious strength wins out. But you can't do that each nan time. And he besides sees nan existent liking successful nan Zone 2 conception arsenic portion of a broader back-and-forth successful nan fittingness world.

BILLY SPERLICH: We had a very, very strong, I would say, hype connected high-intensity exercise, and each of a sudden, whoop, everything went backmost to low-intensity exercise. The answers were endurance athletes. It's a mix, basically.

STONE: And while location are different schools of thought astir nan nonstop mix, proponents of Zone 2 constituent to different upside - erstwhile a workout isn't excessively brutal, you're much apt to do it again.

Will Stone. NPR News.

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