Here is the deal. When you are 80, nobody will care how your arms looked in 2026. What will matter is simple: can you get up from a chair without pushing on your knees? Can you climb the stairs? Can you run for the bus, or do you just watch it leave?
All of that is legs. Strong legs are your pension. You pay in now, you cash out later. And just like with money, if you start paying in at 70, it is a lot harder.
So here is a leg workout you can do in your living room. No machines, no excuses.
Before you start: three rules
1. Hard means hard. The last two or three reps of every set should feel tough. If you could easily do ten more, you are not training, you are just moving around. That is fine for a walk, not for this.
2. Good form beats more reps. Slow down. Control the way down. If your knee caves inwards or your back rounds, stop the set. A sloppy rep does not count.
3. Pain is a stop sign. Muscles burning and getting tired? Good, that is the point. Sharp pain in a joint, pain that gets worse rep by rep, chest pain, dizziness? Stop. If you have a heart problem, recent surgery or bad joints, talk to your doctor first. I am not your doctor.
The workout
Do it two or three times a week, with at least one rest day in between. Warm up with 5 minutes of marching on the spot or walking up and down the stairs.
| Exercise | Sets | Reps | Rest |
|---|---|---|---|
| Squat | 3 | 10–15 | 60 s |
| Reverse lunge | 3 | 8–12 per leg | 60 s |
| Step-up | 3 | 8–12 per leg | 60 s |
| Bulgarian split squat | 2–3 | 6–10 per leg | 90 s |
| Good morning | 3 | 12–15 | 45 s |
| Side lunge | 2 | 8–10 per side | 45 s |
| Dead bug | 2 | 8 per side | 30 s |
| Side plank | 2 | 20–40 s per side | 30 s |
Total: about 35–40 minutes. If you are a beginner, start with 2 sets of everything and skip the Bulgarian split squat for the first two weeks.
1. Squat
The king. Sit back like there is a chair behind you, chest up, knees go in the same direction as your toes. Go as deep as you can while keeping your heels on the floor. Stand up hard.
Too hard? Squat to a real chair and tap it with your backside every rep. That is not cheating. That is exactly the movement you need when you are old.
2. Reverse lunge
Step back, not forward. It is easier on the knees and you can control it better. Lower until your back knee almost touches the floor, then push through the front heel to come back up.
Hold a wall or the back of a chair if your balance is shaky. Balance gets better by training it, not by avoiding it.
3. Step-up
Use a stair or a sturdy, low step. Put the whole foot on it and push yourself up with that leg. Don't bounce off the bottom foot. Come down slowly.
This one is literally climbing stairs. Train it now, so you are not the person waiting for the lift later.
4. Bulgarian split squat
The one everyone hates, because it works. Back foot on a sofa or chair, front foot far enough forward that your knee stays roughly over your foot. Drop straight down.
If you can do 10 clean reps per leg, you have stronger legs than most people your age. Probably most people half your age too.
5. Good morning
This trains the back of your legs and your lower back. Hands behind your head, soft knees, push your hips back and lean forward with a straight back. Stand up by squeezing your glutes.
Only go as far as you can with a flat back. This is not a stretching contest.
6. Side lunge
Life is not only forward and backward. Step wide to the side, sit back into that hip, keep the other leg straight. Push back to the middle.
7. Dead bug
Now the core. Lie on your back, arms up, knees bent at 90 degrees. Press your lower back into the floor and keep it there while you slowly lower one arm and the opposite leg.
If your back lifts off the floor, you went too far. Shorter range, more control.
8. Side plank
Forearm under the shoulder, body in one straight line, hips up. Hold. Breathe.
Too hard? Do it from your knees. Still too hard? Do it against a wall. Everybody starts somewhere.
How to make it harder (this is the important part)
Doing the same workout forever does nothing after a few weeks. Your body gets used to it. You have to give it a reason to get stronger. Every week, make one thing a bit harder:
- add 1–2 reps per set,
- go slower on the way down (count to three),
- pause for two seconds at the bottom,
- add a backpack with books or water bottles,
- or move to the harder version: squat → Bulgarian split squat, step-up → higher step.
When you hit the top of the rep range on every set, make it harder. When you can't hit the bottom of the range, make it easier. That's it. That is the whole secret, and no app or influencer is going to tell you anything better.
Why I am this pushy about legs
Because muscle and strength drop with age if you do nothing, and the big leg muscles are what you need for walking, stairs, getting up and catching yourself when you trip. The WHO physical activity guidelines tell adults to do muscle-strengthening activity on at least two days a week, on top of the cardio, and older adults should add balance training too. Most people don't even do the minimum.
I don't want to be "most people" at 80. I want to be the old guy who still jogs. So I train my legs. Hard.
Your turn.