Fuel Sleep and a Growing Body

Fuel, Sleep, and a Growing Body

Fuel, Sleep, and a Growing Body: a LAX Goalie Hub article for parents of youth lacrosse goalies

Every parent I've coached with has, at some point, gone looking for the thing that will make their young athlete better.

It's a reasonable search and the answer is disappointing, because the two biggest levers in youth athletic development aren't drills. They're sleep and food, and neither one is interesting enough to sell you anything.

This part of the collection is about that half of it. The part that happens in your kitchen and his bedroom, on the days between games.

The honest framing, before anything else

I'm a coach. I'm not a doctor, a dietitian, or an athletic trainer, and I've never met your athlete.

So everything in this collection is one coach's experience of what tends to work for young goalies, offered as reasoning rather than instruction. The decision belongs to you and your athlete, and for anything involving an injury, a persistent symptom, a restrictive diet, or a medical condition, the person to talk to is a qualified clinician who can actually examine him.

Where I cite research I'll name it and link it, and where the popular version of a claim overstates what a study actually found, I'll say so. There's a fair amount of that in this corner of youth sports.

The three things that actually move

Sleep is the biggest one, and it's free. The American Academy of Sleep Medicine's consensus figures — endorsed by the American Academy of Pediatrics — are 9 to 12 hours for kids 6 to 12, and 8 to 10 hours for teenagers 13 to 18, per 24 hours, on a regular basis. Most American teenagers are nowhere close.

Chronic short sleep across a season is associated with a higher injury rate in adolescent athletes; a 2019 meta-analysis put the pooled odds ratio at about 1.58. Note chronic — the evidence on a single bad night is much weaker, and you'll see that number wildly inflated elsewhere, which the sleep article walks through.

Food is mostly about timing and defaults. Not macros, not supplements, not anything he needs to weigh. What actually seems to matter for a young goalie is whether there's something in him before a 7 a.m. game, whether the gap between Saturday's two games gets used, and whether the easy choice in your kitchen is a reasonable one. Building the house so the lazy option is fine does more than any amount of nutrition education aimed at a twelve-year-old.

A growing body sets the ceiling on everything else. Growth spurts scramble coordination for a few months. In-season fatigue is real and it compounds from March. The ADM's whole structure — what's trained at each stage, how much volume, how many months off — exists because bodies at these ages respond differently from adult bodies, and training a fourteen-year-old like a twenty-year-old is how you get a burned-out sixteen-year-old.

What this collection doesn't do

It doesn't give him a meal plan, a hydration formula in milliliters, or a supplement list. Those things exist and some of them are useful, and they belong with a registered dietitian who knows his history rather than with a coach writing for a few thousand families at once.

It also doesn't diagnose anything. There's a short list in the growing pains article of signs that are worth a phone call rather than a wait-and-see, and that list is deliberately about when to ask someone qualified, not about what the answer will be.

What's in this collection

Sleep Is the Drill Nobody Does — the research, honestly reported, including the famous injury statistic that everybody repeats and nobody checked.

The Tournament Weekend Cooler — feeding a goalie out of a parking lot for two days without living on concessions.

The Ninety Minutes Between Games — the window that decides how the second game goes.

Growing Pains, Sore Knees, and What's Normal — what a growing goalie's body tends to do over a season, and the short list worth a call.

Screens, Sleep, and the Night Before a Game — the one household rule worth having the argument about, once.

If you change one thing

Move the bedtime.

It costs nothing, it's the best-evidenced lever in this whole collection, and it'll do more for your young athlete this season than any piece of equipment you could buy him.


Rest days, fuel and recovery are written into the program the same way the drills are — including a full rest day every week, on purpose. Three real days of a fifth-grade week are open on the site, no signup. Take a look at the free week.

Coach Greg — LAX Goalie Hub

This collection is general information from a coach, not medical, nutritional or psychological advice. It isn't a substitute for a qualified clinician who can examine your athlete, and nothing here should delay getting an injury or a persistent symptom looked at.

Reading next

What That Flag Was For: a LAX Goalie Hub article for parents of youth lacrosse goalies
Breakfast Before a 7 A.M. Game: a LAX Goalie Hub article for parents of youth lacrosse goalies

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