If you’re over 40 and you’ve never trained with weights, here’s the number that should get your attention: after 40, most adults lose roughly 8% of their muscle mass every decade. That’s not a slow fade you’ll notice in the mirror first. You’ll notice it when the stairs feel longer, when the grocery bags feel heavier, when your blood sugar starts drifting in the wrong direction.

The good news is that muscle responds at any age. And in 2026, the guidance for how to build it got dramatically simpler.

Why this matters more at 40+

Muscle isn’t just for looking strong. It’s the largest place your body stores and uses glucose, it’s a major driver of your basal metabolic rate — what your body burns just to keep the lights on — and it’s the single best predictor we have of staying independent later in life. When muscle mass goes down, fat mass tends to go up in its place, and the weight on the scale can stay exactly the same while your body composition quietly gets worse.

That’s why we look at fat mass and muscle mass separately on your InBody scan, not just the number on the scale. Two people can weigh the same and be in completely different health situations.

Twice a week is the whole ballgame

In 2026, the American College of Sports Medicine released its first major update to its resistance training guidelines in 17 years — built from 137 systematic reviews and more than 30,000 participants. The headline finding is refreshingly simple: training all major muscle groups twice a week is the primary driver of both strength and muscle growth.

Not five days a week. Not two-hour sessions. Twice a week, every major muscle group, consistently.

If muscle size is specifically your goal, the guidelines point toward roughly 10 sets per muscle group per week. That’s the difference between maintaining and actually building.

You don’t need a barbell to start

One of the most useful things the new guidelines confirmed: elastic bands, bodyweight work, and home-based routines produce real gains in strength, muscle size, and physical function. The equipment matters far less than showing up twice a week and adding a little challenge over time.

This matters if you’ve been putting off starting because you pictured a loud gym and a heavy barbell. That’s not the entry point. The entry point is a coach who meets you where your body actually is today.

Protein: get to enough, then stop worrying

Here’s where a lot of people over-complicate things. The research is fairly settled: protein supplementation stops adding to muscle and strength gains once total daily intake passes about 1.6 g per kilogram of body weight. Most experts working with adults 40+ land in the 1.2–1.6 g/kg range, sometimes up to 1.8.

What matters more than the total is how it’s distributed. Older adults need more protein in a single sitting than younger adults do — roughly 40 grams per meal versus 30 — to fully switch on muscle protein synthesis. The trigger is an amino acid called leucine, and you need about 2.5–3 grams of it per meal, which comes from roughly 25–30 grams of high-quality protein.

Practically: a breakfast of toast and coffee is doing nothing for your muscle. Anchor your first and last meals of the day around a real protein source and you’ve solved most of the problem.

And the timing debate? A 2026 trial in untrained older men found that 40 g of protein post-workout or pre-sleep didn’t beat resistance training alone. The training is the stimulus. Protein supports it. Don’t let supplement timing distract you from the sets.

What to do this week

1. Pick two days. Put them in your calendar like appointments, because they are.
2. Cover the whole body both days — legs, hips, back, chest, shoulders, core. Not an arm day.
3. Anchor breakfast around 30–40 g of protein. Eggs, Greek yogurt, cottage cheese, a quality shake.
4. Add one small thing each week — one more rep, a slightly heavier band, one more set.
5. Get a baseline. If you don’t know your current muscle mass, you can’t tell whether any of this is working.

That last one is the step most people skip, and it’s the one that makes everything else measurable.

Start with us in Middletown. Come in for an InBody scan and we’ll walk you through what your muscle mass, fat mass, and BMR actually mean for you, then build a plan around two days a week that fits your life. If your body feels tight or restricted before you add load, a stretch therapy session is often the right first step. And if Milford is the easier drive, we’ll take care of you there too.

You’re not behind. You just need a place to start, and we’re glad to be it.