There is a frustrating pattern that shows up in masters skiers who train hard and do everything else right. The sessions are consistent. The loading is sensible. The form is clean. And the strength still arrives slowly — slower than it did at 40, slower than the effort seems to justify. The work is going in. Less of it is coming back out.
Part of that is the training itself, and that is worth fixing first. But a large part of it is what happens in the hours after the session, in the part of the equation most masters skiers never program: protein intake, and the body’s diminished ability to use it.
The mechanism has a name. It is called anabolic resistance, and it is one of the more under-discussed realities of training after 50.
What Anabolic Resistance Actually Is
Muscle is not a static tissue. It is in constant turnover — proteins are broken down and rebuilt continuously, every day. Training tilts that balance toward building, but only if there is raw material available to build with. That raw material is dietary protein, specifically the amino acid leucine, which acts as the signal that switches on muscle protein synthesis.
In a younger athlete, a moderate dose of protein produces a strong synthesis response. The signal is loud. The machinery responds.
After roughly age 50, that response blunts. The same protein dose that produced a full anabolic response at 30 produces a weaker one. The muscle becomes, in effect, harder of hearing. It still responds — but it needs the signal delivered louder and more often to respond fully. That is anabolic resistance: not an inability to build muscle, but a higher threshold to trigger the building.
This is not a reason to train less or expect less. It is a specific, addressable variable. The same way recovery capacity changes after 50 without ending hard training, the protein requirement changes without ending muscle gain. You account for it, and you keep building.
Why This Matters Specifically for Skiers
A general fitness audience can treat protein as a vague wellness topic. For masters skiers, the connection is more direct, because the qualities skiing depends on are exactly the ones anabolic resistance puts at risk.
Skiing is a single-leg sport at the moment of maximum load. Edge engagement, mogul absorption, and turn finishing all run through one leg producing and controlling force. The strength that holds that position together is built in the off-season and defended through the winter. If the adaptation from your training is muffled because the building signal never fully fires, the single-leg strength you are counting on develops more slowly and erodes more easily.
The same applies to the slow-adapting tissues. Tendon and connective tissue already turn over more gradually than muscle, and they set the ceiling on how much you can load — a point worth its own discussion, covered in the post on tendon health for masters skiers. Underfeeding the recovery process narrows that ceiling further.
And there is the longer arc. The slow loss of lean muscle with age — sarcopenia — is not a cosmetic concern for a skier. It is the quiet erosion of the exact tissue that produces force on snow. Adequate protein paired with strength training is the most direct lever masters skiers have against that erosion. The physiological backdrop here connects to what is laid out in what actually changes after 50: the changes are real, they are specific, and they respond to specific action.
The Recovery Equation the Training Depends On
The CoreSkiing methodology is built on a recovery-first principle. Chapter 5 of Ski Strong for Life makes the case plainly: the best training is the training you recover from, and progress comes from consistency rather than exhaustion. That principle assumes the recovery actually happens. Sleep is part of it. Sensible loading is part of it. Protein is the part that supplies the material the recovery is made from.
Chapter 2 covers the physiological realities of training after 50 — recovery capacity, neural efficiency, connective tissue tolerance, and hormonal shifts. Anabolic resistance sits squarely inside that picture. The hormonal environment that supported easy muscle gain at 30 has shifted. The response to each protein feeding has blunted. None of that stops adaptation. It changes the inputs adaptation requires.
You can run a well-designed program and still leave gains on the table if the nutritional side of recovery is treated as an afterthought. The work is necessary, but the adaptation is where strength is actually made — and the adaptation has requirements of its own.
This is the same trap described in how smart recovery builds stronger skiers. The session is only the stimulus. What you do with the hours afterward decides how much of that stimulus becomes usable strength on snow.
What the Research Points Toward
Here the precision matters, and so does honesty about the limits of general guidance.
The research on masters athletes points consistently in a few directions. Total daily protein needs are higher for active adults over 50 than the baseline recommendations written for sedentary populations. The per-meal dose matters as much as the daily total, because anabolic resistance means a larger single feeding is needed to fully trigger synthesis. Spreading protein across the day in several meaningful servings appears to outperform loading most of it into one meal. And protein in the hours around training — particularly after a strength session — gives the building signal its best opening.
Practical shape, without turning this into a prescription: most masters skiers training seriously are under-eating protein relative to what their training is asking for, and the fix is usually structural rather than dramatic — a real protein source at each meal, a deliberate serving after training, and attention to the total rather than guesswork. Skiers traveling for a destination trip or grinding through a heavy ski week should hold that standard, not let it slide when it matters most.
I am deliberately not putting exact gram targets in this post, for a reason worth being upfront about: individual protein needs vary, and specific numbers are better set against your own body weight, training load, and any guidance from your own medical or nutrition professional than pulled from a blog post.
Where It Fits in the Training Year
The off-season is where this lever does the most work. The Summer Strength Build is built to add strength — bilateral and unilateral work, hip extension, loaded carries — across twelve weeks. That is the block where new muscle and new strength are most actively created, and therefore the block where the building material matters most. Training hard through a strength phase while under-fueling the recovery is the most common way to blunt the return on an otherwise sound program.
In-season, the goal shifts from building to holding. Protein still matters here, arguably more, because it defends the strength you spent the summer building against the slow drain of a long season and the higher recovery cost of skiing day after day.
None of this is exotic. It is the unglamorous side of training longevity — the steady inputs that, repeated for years, let a masters skier keep skiing hard into their 60s and beyond. That is the whole point of training this way: not a single strong season, but a long run of them.
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If you want the framework — including how the recovery inputs fit around the strength work — sent to your inbox, the list is at SkiFitNation.com.
This article is general training and physiology education for healthy masters skiers, not medical or dietary advice for any individual.