Why We Get Injured: Load vs. Capacity 

If you feel like you’re always one workout away from something going wrong, this one’s for you. You’re not broken, you’re not bad at this, and it’s probably not the movement that’s the problem. There’s usually a bigger picture, and once you see it, things start to make a lot more sense.

We hear it all the time: “I wasn’t even doing anything crazy and I just got hurt.” A moderately heavy deadlift, a Tuesday run, a set of pull-ups you’ve done a hundred times before. The movement wasn’t the problem. The timing was.

To understand why, we need to talk about two things that are always in a relationship with each other: load and capacity.

Load vs. Capacity

Your body can handle a lot, and it’s remarkably adaptable. That’s the whole point of training. But at any given moment, it has a ceiling, and that ceiling is your capacity. Everything you ask your body to do, every squat, sprint, or snatch, is your load.

Injury happens when load exceeds capacity, and it’s really not more complicated than that.

The part that catches most people off guard is that capacity isn’t fixed. It shifts constantly depending on how you’re sleeping, how stressed you are, how well you’re eating, and a dozen other things that have nothing to do with the gym. So the back squat that felt totally fine last month might be genuinely too much this month, not because you got weaker, but because your capacity quietly dipped and you didn’t know it.

Training works by gradually increasing load in a way that nudges your capacity to rise and meet it. That’s adaptation, that’s progress. The problem comes when load spikes faster than capacity can follow, or when life quietly drains the tank without us noticing.

It’s also worth saying that not everyone has the same capacity for volume, and that’s completely normal. Some people genuinely thrive training six or seven days a week. Others do their best work, and stay their healthiest, training three to five days. Neither is wrong. More is not automatically better, and chasing volume for the sake of volume isn’t what makes us fitter or stronger. What makes us better is training in a way that our body can actually absorb and recover from. If you’re someone who feels beat up most of the time, it’s worth asking honestly whether the amount you’re doing is working for you, not just whether you’re tough enough to handle it.

Your Total Stress Bucket

Here’s where most people’s mental model breaks down: they think of training stress as its own separate thing, totally apart from the rest of life. But your nervous system, your hormones, your immune system, none of them care where the stress came from. It all lands in the same bucket.

The hard week at work, the poor sleep, the relationship tension, the skipped meals, the head cold you’re pushing through, it all counts. Training load, work stress, sleep debt, life stress, underfueling, it goes in together.

When the bucket overflows, injury is how your body gets your attention. It’s not random and it’s not bad luck. It’s a signal that the total accumulated stress finally exceeded what your body could absorb.

A deadlift that felt easy in January might genuinely hurt you in March, not because you’ve changed the weight, but because you’ve been sleeping five hours a night, working long weeks, and running on fumes. The lift is the same. The capacity is not.

This is why recovery isn’t optional. Managing what goes into the bucket matters just as much as what you put on the bar.

If You Keep Getting Hurt

If you’re constantly dealing with niggles, tweaks, and setbacks, the answer is almost never “stop training.” But it is almost always “let’s look at where the bucket is overflowing.”

Persistent injury patterns are information, not a life sentence. They’re pointing at something that needs attention, not a flaw in who you are or how you’re built. A few common places we see the bucket overflow:

You’ve been adding load faster than your body can adapt. Progress that feels exciting in the moment can accumulate faster than tissue is ready for. It’s not about going easy, it’s about going in a way your body can actually absorb.

Recovery has slipped down the priority list. Sleep is when tissue actually repairs itself, so if you’re chronically short on it, your capacity is chronically suppressed and the bucket never fully empties between sessions.

You’re doing more days than your body actually needs. This one is hard to hear, but more sessions don’t always mean more progress. If you’re someone who does better with four days than six, training six is just filling the bucket faster than you can empty it.

Life has been a lot lately. A hard season at work, a big life change, a stretch of emotional stress, these things genuinely reduce your physical capacity. It doesn’t mean you stop, it just means you need a little more awareness about how hard you’re pushing.

You’re not eating enough to support the work. Underfueling, especially when protein is low, slows the body’s ability to repair and reinforce tissue. You can absolutely out-train what you eat, just not in the direction you want.

Movement patterns have been loading things unevenly over time. This one is sneaky because it can take months to show up, but it’s usually pretty clear once you look for it.

None of this is meant to be overwhelming. Training done well is genuinely one of the best things you can do for your body, and the goal here is just to help you do more of it, with fewer interruptions.

If something keeps flaring up, come talk to us. We’re not going to tell you to stop. We’re going to help you figure out where the bucket is full, so you can keep going for a long time.