PHILA TODAY · LIVE WELL · EAT WELL · MOVE WELL
CHOLESTEROL SERIES · ARTICLE 7 OF 12
Moving your way to lower cholesterol
Exercise and the HDL story.
Of all the cholesterol levers — food, weight, smoking, alcohol, medication — exercise is the only one that consistently raises HDL. Diet barely moves it. Weight loss helps a little. Most cholesterol tablets don’t change it. But 30 minutes of brisk walking, five days a week, reliably raises HDL by 5 – 10% within three to six months. For a number that is notoriously stubborn, this is meaningful.
If you have read the BP series article 7, the walking plan in this article will look familiar. The basic 12-week build is the same. But what exercise does for cholesterol is different from what it does for BP, and it’s worth understanding the specifics — particularly for triglycerides, which respond fast and dramatically to movement.
Before you start
If you have known coronary artery disease, a previous heart attack, severe peripheral artery disease, or are over 65 and have not exercised in years, talk to your clinic before starting an exercise programme. A simple ECG and a five-minute conversation usually clears most people; people who genuinely need a stress test will be referred for one.
What exercise does to each of your numbers
LDL — modest effect
Aerobic exercise on its own lowers LDL by about 3 – 5% over 12 weeks. Smaller than diet (which can drop LDL by 10 – 15%) and much smaller than a statin (25 – 50%). But the LDL benefit compounds with everything else, and bringing LDL down through exercise costs nothing and has no side effects.
HDL — the headline benefit
Aerobic exercise raises HDL by 5 – 10% over 3 – 6 months. This is one of the few non-genetic things that reliably moves HDL. The benefit is largest in people who started with the lowest HDL — which is exactly the people who need it most.
Triglycerides — the fastest effect
Triglycerides respond faster than any other lipid number. A single session of moderate exercise lowers triglycerides for 24 – 48 hours. Sustained exercise lowers them by 20 – 30% within 8 – 12 weeks. People who do most of their high triglyceride damage from too much sugar, too much alcohol and too little movement can sometimes normalise their numbers in two months of consistent walking.
Cardiovascular risk overall
Even when the cholesterol numbers move only modestly, regular exercise cuts heart attack risk by about 30%, stroke risk by 25%, and overall cardiovascular death by 30% — bigger effects than the lipid changes alone would predict. The exercise itself protects arteries in ways that aren’t visible in the lipid panel.
Exercise is the only “treatment” that improves every number on the lipid panel at the same time.
The 12-week plan
This is the same gentle build as the BP series. If you are already active, jump to week 4 or 6. The pacing is gentle on purpose — most people who try to do too much in week 1 stop in week 2.
Week What to do Days/week Weeks 1 – 2 Walk for 10 minutes at any pace. Focus on showing up. 5 Weeks 3 – 4 Walk for 20 minutes at any comfortable pace. Split into two if needed. 5 Weeks 5 – 6 Walk 20 – 25 minutes, briskly for at least 10 of those minutes. 5 Weeks 7 – 8 Walk 30 minutes briskly. This is the target dose. 5 Weeks 9 – 10 Add a hill, stairs, or a faster patch in the middle. 5 Weeks 11 – 12 Lock in. Take a lipid panel before and after to see the change. 5
How fast is “brisk”?
Brisk walking is the pace at which:
• You are breathing harder than usual but can still hold a conversation.
• You feel slightly warm and your heart rate is up after 10 minutes.
• You could walk faster but only with real effort.
In numbers: roughly 100 – 120 steps a minute. About 5 to 6 km/h.
The “talk test” is the easiest gauge: at a brisk pace, you can talk in short sentences but not sing. If you can sing comfortably, walk faster. If you can’t say more than a few words at a time, slow down.
Adding some resistance training (optional but useful)
Walking alone is enough to move your cholesterol numbers in the right direction. But adding two short resistance-training sessions a week — pushing or pulling against something — adds an additional 3 – 5% HDL bump and another small LDL reduction. It also protects against the muscle loss that comes with aging.
You don’t need a gym. You don’t need weights. Bodyweight exercises work:
• Wall push-ups — stand a metre from a wall, place hands on it, lower yourself toward the wall, push back. 3 sets of 10.
• Chair sit-to-stand — sit on a sturdy chair, stand up without using your hands, sit back down. 3 sets of 10.
• Lunges — step forward into a lunge, then back. 3 sets of 8 each leg.
• Plank or modified plank on knees — hold for 20 – 60 seconds.
Two sessions of 15 – 20 minutes a week, on non-walking days, is plenty.
The triglyceride trick
If your triglycerides are the main problem on your lipid panel, three specific moves help fastest:
• Walk after meals. A 15-minute walk after dinner lowers post-meal triglycerides by 20 – 30%. This is one of the cheapest, fastest cholesterol interventions in medicine.
• Cut sugary drinks first. Triglycerides respond to sugar even more than to fat. One Coke a day pushes them up; cutting all sugar-sweetened drinks for two weeks usually drops triglycerides by 30%.
• Limit alcohol. Alcohol is converted directly to triglycerides in the liver. Cutting to two drinks a day or fewer normalises triglycerides in most people within a month.
The post-meal walk
If you only do one new thing from this article, do this: walk for 15 minutes after your biggest meal of the day, ideally dinner. Triglycerides peak 3 – 5 hours after a meal; a short walk during that window blunts the peak by 20 – 30%. It also improves blood sugar control (good for diabetics) and helps with BP. Three benefits, 15 minutes, no equipment.
What if you can’t walk outside?
South African walking conditions aren’t always friendly — weather, safety, no pavements, dogs. Almost all the cholesterol benefit comes from the movement itself, not the outdoors. If you can’t or don’t want to walk outside:
• Mall walking. Most malls open early and are quiet, flat, air-conditioned, and safe. Two laps is roughly 30 minutes.
• Treadmill at home. A second-hand entry-level model is R2 000 – R4 000. Walk at 5 km/h while watching TV.
• March in place. 30 minutes of marching while making dinner counts.
• Stairs. Climbing five flights and back, three times, is roughly equivalent to a 30-minute brisk walk.
• Swimming or aquaerobics. Particularly good for people with joint problems or PAD.
• Cycling (stationary or outdoor). Equivalent cholesterol benefit to walking.
The numbers, expected
Across 12 weeks of consistent walking, here’s what most people see on their next lipid panel:
Number Expected change LDL 3 – 5% lower HDL 5 – 10% higher Triglycerides 15 – 30% lower Total cholesterol 3 – 5% lower Total / HDL ratio 10 – 15% lower (this is the biggest improvement) 10-year heart attack risk 20 – 30% lower
These are averages. People who started with the worst numbers usually see the biggest improvements. People who combine walking with the food list from article 5 see roughly double the effect on every line.
How to make it stick
The habit-design tricks from the BP series apply here too:
• Pair it with something you already do. “After dinner I walk before I sit down.” “After dropping the kids at school I walk for 20 minutes.”
• Walk with someone. A partner is the strongest predictor of whether you’ll still be walking in six months.
• Track it. A tick on a calendar for each walking day is a remarkably powerful motivator.
• Take rest days. 5 days a week is the target. 2 rest days are part of the plan, not a failure.
• If you miss a week, just restart. Drop back one or two weeks in the plan and re-start there.
The bigger picture
Walking is one of the most accessible cholesterol interventions in medicine. It doesn’t require a gym, a doctor, a prescription, or a monthly fee. It works alongside food (article 5), salt-cutting (article 6 and BP article 6), and medication (article 9) to compound their effects.
Over a year, 30 minutes of brisk walking five days a week comes to roughly 130 hours of movement. In return, the body gives back better lipids, lower BP, better blood sugar, more energy, lower stroke risk, lower heart attack risk, lower dementia risk, and a longer healthy life.
The next article in the series covers the other lifestyle factors: smoking, alcohol, stress and sleep. Each one influences cholesterol independently of food and exercise — and most South Africans have at least one of them within their control to improve.
Where to get more help
Heart and Stroke Foundation South Africa — heartfoundation.co.za · 021 422 1586 — walking groups and printable trackers.
Phila Today Move tab — exercises for days you can’t walk outside.
Phila Today High Blood Pressure Series — Article 7 covers the walking plan in more detail.
Phila Today Cholesterol Series — next: smoking, alcohol, stress and sleep — the lifestyle factors that aren’t on your plate.
Phila Today · Article 7 of 12 in the Cholesterol Series