Varicose Veins and the Gym: What to Change and What to Keep

Varicose veins are a common reason people quit training legs, usually without needing to. For most people the training itself isn't the problem — the problem is how you breathe under load, how long you stand still, and how much you sit the rest of the day. Here's what actually needs changing, and what you can keep doing as is.

What varicose veins are and why they happen

Leg veins return blood to the heart against gravity. They contain one-way valves that stop blood from falling back down, and the main engine pushing blood upward is your calf muscle — every step squeezes blood out of the deep veins. When valves fail, blood pools, the vein gradually widens, and over time it becomes visible, twisted, and tender.

The risk factors are mostly outside your control: genetics (if both parents have them, your risk is over 80 percent), pregnancy, age, a job where you stand or sit for 8 hours without moving, and higher body weight. Lifting isn't on that list as a cause, but it can trigger uncomfortable symptoms if you do it the wrong way.

Does the gym make varicose veins worse?

Training doesn't create varicose veins. What temporarily aggravates them is a sharp spike in abdominal pressure, which transmits down to the leg veins. That happens during the Valsalva maneuver — holding your breath and bracing hard, say on the third rep of a squat at 90 percent of your max. Abdominal pressure can exceed 150 mmHg and blood briefly stalls in the legs. A few seconds isn't dangerous, but if every set looks like that, your legs will feel heavy and tight by the end of the session.

Practical rule: cap the breath hold at 1–2 seconds through the hardest point of the lift, then exhale through the rest of the rep. If your face goes red and your neck veins bulge, the load is heavier than the breathing you can control.

What to train — specifically

Calves and the muscle pump

This is the most useful part of your training for your veins. The goal isn't size, it's ankle mobility and a strong contraction.

• Standing calf raises: 3–4 sets of 15–25 reps with a 2-second hold at the top, 2–3 times per week.
• Seated calf raises (for the soleus): 3 sets of 20 reps at moderate load.
• Heel walks and toe walks, 30 metres each, 3 rounds, as a warm-up.
• Ankle pumps lying down: 30 reps, 2–3 times a day if you sit a lot.

Cardio

Aim for 150 minutes of moderate cardio per week — say 5 sessions of 30 minutes of brisk walking. Anything that moves the calves rhythmically without pounding the joints works: cycling 20–30 minutes, swimming, the elliptical. Swimming has a bonus — the horizontal position and water pressure both reduce swelling.

What to adjust in strength training

You don't have to drop squats, deadlifts, or leg press. Adjust them:

1. Shift the rep range. Instead of 5 sets of 3 at 85–90 percent, run 3–4 sets of 8–12 at 65–75 percent. Fewer maximal strains, same effect on the muscle.
2. Don't stand still between sets. Walk for 60–90 seconds instead of standing by the bar. Motionless standing is worse for your veins than the set itself.
3. Finish with legs up. Lie down for 5–10 minutes with your legs elevated 20–30 cm above heart level.
4. Be careful with the belt. A tight belt further raises abdominal pressure. Use it for your heaviest sets only, not the whole session.
5. Shorten long static holds. Cut 2-minute wall sits and farmer's carries down to 30–45 seconds.

Outside the gym

Compression stockings in the 15–20 mmHg class help with heaviness and swelling; stronger classes (20–30 mmHg and up) should be assessed by a doctor. Put them on in the morning before you get up, while your legs haven't swollen yet.

The rest: if you're carrying extra weight, losing 5 percent of body mass measurably lowers pressure in the leg veins. Get 25–30 grams of fibre a day — constipation means straining daily and spiking abdominal pressure. Keep salt under 5 grams a day and fluids around 2–2.5 litres. Cap saunas and hot baths at 10–15 minutes and finish with a cold rinse over the legs, since heat dilates veins and amplifies that heavy feeling.

The worst combination for veins isn't hard training — it's 9 hours of sitting plus 45 minutes of standing in one spot. Movement is the treatment, not rest.

When to see a doctor

Go in the same day if you get:

• sudden swelling in one leg with calf pain and warm, red skin — this can be deep vein thrombosis;
• chest pain or shortness of breath alongside a swollen leg — emergency care, don't wait;
• bleeding from a varicose vein — lie down, elevate the leg, and press with gauze for 10 minutes.

Book an appointment within a few weeks if you notice brown or hardened skin above the ankle, eczema and itching around a vein, a sore that won't heal, or pain that doesn't clear even after a night with your legs rested. A vein ultrasound takes 15–20 minutes and shows exactly which valves are leaking, which determines whether conservative treatment is enough.

The short version

• Training doesn't cause varicose veins — breath-holding under maximal loads makes symptoms worse.
• Calves are the pump: 3–4 sets of 15–25 reps, 2–3 times a week, plus 150 minutes of cardio weekly.
• Swap 5x3 at 90 percent for 3–4 sets of 8–12 at 65–75 percent, and walk between sets.
• Elevate legs 5–10 minutes after training; put 15–20 mmHg compression on first thing in the morning.
• Sudden one-sided swelling with pain and redness is an emergency, not something to postpone.