Oh, double threshold training, the holy grail of running circles these days. "Two sessions a day to turn you into an oxygen-processing cyborg," they say. Because clearly, one good workout isn't enough—we need to do it twice, with the unspoken goal of being just tired enough to question our life choices by dinner.
Let me get this straight: we're supposed to spend the first workout hovering at the threshold like it's some magical fitness portal, then recover just enough to shuffle back out there for round two. Why stop at two? Why not three? Four? Let’s just live in the lactate zone! Forget the threshold—let’s do double "throw up in a bush" sessions. That'll really teach our bodies who’s boss.
The Science? Sure. The Sanity? Questionable.
The science says it’s about "maximizing adaptation" by "accumulating time at threshold." You know what else maximizes adaptation? Not being so cooked from your morning run that the second session feels like you’re running on borrowed legs and bad decisions. Oh, but if you don't do both, you're told you're leaving "free fitness" on the table. Yeah, sure—right next to the free injury and free burnout that double threshold serves up like appetizers at a bad buffet.
The Reality of Double Threshold:
Morning Threshold:
You’re fresh(ish). The pace feels decent. You’re nailing splits. Confidence is high. You're thinking, "Wow, this isn’t so bad! I’m basically Jakob Ingebrigtsen."
Afternoon Threshold:
You lace up your shoes, feeling like you aged 20 years since breakfast. The splits you crushed earlier? Now they feel like you’re dragging a refrigerator behind you. Forget sub-threshold; you’re sub-alive. But hey, at least your Strava followers think you’re dedicated (or deranged).
The "Benefits":
Sure, double threshold might work if you’re a full-time pro who naps between sessions, gets weekly massages, and has a personal chef preparing your post-run avocado toast. For the rest of us mere mortals? It’s a one-way ticket to mediocre workouts and glorified overtraining.
"But it builds lactate clearance!" Yeah, and it also builds a burning hatred for that second session.
"It’s about teaching your body to recover faster!" Sure, if by recover you mean limping through your workday wondering if you’ll ever feel normal again.
The Alternatives?
Oh, you mean like normal, sane training? You know, where you crush one great session, recover properly, and come back stronger? Maybe even throw in a long run instead of this two-a-day circus. But no, let’s run ourselves into the ground twice a day because Jakob does it. Meanwhile, Jakob has been running since the womb and probably has mitochondria that could power a small country.
In Summary:
Double threshold is like pineapple on pizza—some people swear by it, but the rest of us are just quietly horrified. Unless you’re an elite with nothing better to do than lactate all day, maybe reconsider. One threshold session is hard, effective, and doesn’t leave you questioning your entire existence by the second workout. And honestly, isn't life too short for double pain served lukewarm twice a day?