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In shape at 45. Build the base now.

What to do first, and what to leave for later.

To get in shape at 45, measure where you are, then build strength, balance and daily movement in about three hours a week, often less. Do not start by cutting food, and do not train the way you did at 30. Retest every 12 weeks, so the numbers tell you what is working, not the mirror or the scale.

What in shape means

Strong, steady, and able to do what you want.

At 45, in shape does not mean training like an athlete or reaching a number on the scale. It means strength that lasts, balance you can rely on, energy through the day, and a body that moves well.

Those can be measured. Four short tests at home show where you stand against the published average for your age. Research links three of them, balance, push-ups and the floor sit and rise, with how long people live.

Research links: a pattern found across a group of people, not a prediction for any one person.

The first 12 weeks

Seven steps, in order.

  1. 1. Measure. Take the Five Minute Baseline at home, so you know where you start and can see what changes.
  2. 2. Strength first. It carries everything else. Support first, load later, and load goes up only when the current weight is steady.
  3. 3. Move more through the day. Research links short bursts of activity with better health, even in people who do no formal exercise. The stairs, a brisk walk between meetings, a few minutes away from the desk.
  4. 4. Practise balance, a little and often. Standing on one leg fits into the day and is easy to measure.
  5. 5. Structure food, do not cut it. We do not start by cutting food. Food comes into it, but cutting it is not where the work begins.
  6. 6. Protect recovery. Plan easier weeks in advance, rather than waiting until you are run down.
  7. 7. Retest at 12 weeks. The same measures, in the same way, so the numbers tell you what is working.

Short bursts of activity: Nature Medicine, 2022. A link found across a group of people, not a promise for any one person.

Mistakes at 45

Three things I would avoid.

  • Training the way you did at 30. In my clients over 40, the ability to build muscle has not gone, but the margin for error has. A missed night of sleep or a rough week of eating shows up sooner, and costs more. Doing too much early is the quickest way to stop.
  • Starting with a strict diet. Two big changes at once make both harder to keep. We do not start by cutting food.
  • Judging by the scale alone. The scale cannot tell you whether you are stronger or steadier. The measures can. A tape measure helps too: NICE advises keeping your waist to less than half your height.
Time

About three hours a week, often less.

At 45, most people I coach have a full diary: work, family, travel. The plan has to fit the week you actually have, at home, in a hotel room or in a gym. Every session has to earn its place.

A plan you keep for 12 weeks does more for you than a harder one you drop.

Questions

What people ask first

Is it too late to get in shape at 45?

No. In my clients over 40, the ability to build muscle has not gone; what has changed is the margin for error. Start where you are, measure it, and build from there.

How should a man get in shape at 45?

The same way, in the same order. One difference in the tests: the push-up reference data are for men only, so a man compares his count with published bands for men. Women compare a knee push-up count with separate norms.

How much exercise do I need at 45?

In my method, about three hours a week, often less. What matters more than the total is that the plan fits your week, so you keep it up.

Do I need a gym to get fit at 45?

No. The plan works at home, in a hotel room or in a gym.

Should I see my GP first?

If you have a health condition, or have not exercised for a long time, yes: talk to your GP before you start.

What does coaching with you cost?

Z12 is 12 weeks for £900 in total, with a full refund within 14 days. Z24 is 12 more weeks for £2,100, in one payment or two, only if we both agree it is needed.

Who wrote this
Francesco Zen

Francesco Zen, founder of ZTraining

  • 19 years in health and fitness, 15 of them as a one-to-one personal trainer.
  • Coaching since 2007, and senior executives since 2016, with clients in the UK, the US, the UAE and Europe. In London he built and led a team of trainers, all coaching with his method.
  • Studied engineering and worked as an engineering designer before coaching.
  • Recognised at the Premio Eccellenza Italiana, Washington DC, 2019. Quoted in Fit&Well, Yahoo and Eat This, Not That.

Last reviewed 10 November 2026. General information, not medical advice: if you have a health condition, or have not exercised for a long time, talk to your GP before you start.

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We talk about your week, your health and what you have tried before. If the programme fits you, I will say so. If it does not, I will say that too.