When should you walk indoors instead of outside?
Walk indoors when the AQI is above 200, in a heatwave between 12 noon and 3 PM, and when rain leaves roads flooded or slippery. The air-quality line comes from the health ministry's 2025 Advisory on Air Pollution and Health: on days of poor to severe air (AQI above 200), it asks people to avoid outdoor morning and late-evening walks, jogging, running and other exertional activity, and to stay indoors.
The Central Pollution Control Board's 2014 National Air Quality Index report gives a health statement for each of its six bands. Note the last: at Severe, effects may be felt even during light physical activity.
| AQI | Band | CPCB health statement |
|---|---|---|
| 0–50 | Good | Minimal impact |
| 51–100 | Satisfactory | May cause minor breathing discomfort to sensitive people |
| 101–200 | Moderate | May cause breathing discomfort to people with lung disease such as asthma, and discomfort to people with heart disease, children and older adults |
| 201–300 | Poor | May cause breathing discomfort on prolonged exposure, and discomfort to people with heart disease with short exposure |
| 301–400 | Very poor | May cause respiratory illness on prolonged exposure, more so in people with lung and heart diseases |
| 401–500 | Severe | May cause respiratory effects even in healthy people; impacts may be felt even during light physical activity |
For heat, the National Centre for Disease Control's Public Health Advisory on Extreme Heat and Heatwave 2026 advises avoiding the sun especially between 12 noon and 3 PM, avoiding strenuous activity outside in the afternoon, and drinking water even when you are not thirsty. Rain has no official threshold: if the footpath is under water, broken or badly lit, the risk of a fall decides it.
Does walking in place burn as many calories as walking outside?
Walking in place burns a little less than a moderate walk, but the gap is small. In a 2012 study in Medicine and Science in Sports and Exercise, Steeves and colleagues measured 23 adults averaging about 28 years: stepping in place used 258 kcal an hour and treadmill walking at 3.0 mph (4.8 km/h) used 304 kcal an hour. By our arithmetic, stepping in place cost about 85% as much, or roughly 129 against 152 kcal over 30 minutes.
For other indoor options, the 2024 Adult Compendium of Physical Activities rates each activity in METs. One MET is about 1 kcal per kg per hour, as the Compendium paper explains, so 30 minutes burns roughly METs × weight in kg × 0.5. Its walking and conditioning exercise lists have no entry for walking in place; the nearest, moderate military marching, is rated 4.5 METs. The figures include resting energy, and the paper says they are a starting point, not a precise value for any one person.
| Activity (Compendium description) | METs | 60 kg | 70 kg | 80 kg |
|---|---|---|---|---|
| Home exercise, general | 3.8 | 114 kcal | 133 kcal | 152 kcal |
| Treadmill, 4.8–5.5 km/h, flat | 3.8 | 114 kcal | 133 kcal | 152 kcal |
| Stair climbing, slow pace | 4.5 | 135 kcal | 158 kcal | 180 kcal |
| Aerobic dance, low impact, moderate effort | 4.8 | 144 kcal | 168 kcal | 192 kcal |
| Step aerobics on a 4-inch (10 cm) step | 5.5 | 165 kcal | 193 kcal | 220 kcal |
| Stair climbing, up and down | 7.5 | 225 kcal | 263 kcal | 300 kcal |
So a brisk session at home with knee lifts and a low step lands near a brisk walk outside, and stairs add more. Food still matters more than the room you walk in: find your maintenance with the TDEE calculator, then set a target with the calorie deficit calculator.
How many steps can you get walking at home?
Expect about 2,500 steps from 30 minutes of easy marching, and more if you march briskly. In the Steeves study, an hour of stepping in place during TV commercials added up to 25.2 minutes of activity and 2,111 steps, counted by hand, which is about 84 steps a minute by our arithmetic.
So 5,000 steps at home is two 30-minute sessions, or one plus walking during calls and after meals. In a 6-month randomised pilot study from 2012, 58 inactive adults with overweight either stepped in place during TV commercials for at least 90 minutes of TV, or walked at least 30 minutes, on at least 5 days a week. Both groups added about 3,000 steps a day, reaching roughly 7,600 to 7,900. Body weight did not change, though waist and hip measurements fell. Steps at home add activity; fat loss still needs the food side.
A 30-minute indoor walking workout for beginners
You need a clear strip of floor about two metres long, supportive shoes and water. Pace it by effort on a 0 to 10 scale: the CDC calls 5 or 6 moderate, when you can talk but not sing, and 7 or 8 vigorous, when you cannot say more than a few words without pausing for breath.
- 1
Minutes 0–5: easy march (effort 3–4)
March on the spot with relaxed arm swings, landing softly. Add shoulder rolls in the last minute.
- 2
Minutes 5–10: brisk march (effort 5)
Bend your elbows to 90 degrees and pump your arms. Lift your feet higher; you should still talk in sentences.
- 3
Minutes 10–15: march and step-touch (effort 5)
Alternate a minute of brisk marching with a minute of step-touch: step right, bring the left foot in, step left, bring the right in.
- 4
Minutes 15–20: walk the room (effort 5)
Walk the length of your room or hall and back with a long arm swing. Clear corners and furniture first.
- 5
Minutes 20–25: steady push (effort 5–6)
Brisk marching again, a little faster for the last 30 seconds of each minute. This is the hardest part.
- 6
Minutes 25–30: cool down
Slow the march for two minutes, then stretch your calves and the front of each hip for about 30 seconds a side.
An intermediate indoor walking workout with knee lifts and side steps
Move up once the beginner routine feels easy at effort 5. This version adds knee lifts, side steps and a low step; the Compendium rates step aerobics on a 10 cm step at 5.5 METs, against 3.8 for moderate treadmill walking. Use the bottom stair or a sturdy platform, never a stool.
- 1
Minutes 0–4: warm-up march (effort 3–4)
Easy marching, arm circles and a few slow knee lifts holding a wall.
- 2
Minutes 4–10: knee-lift intervals (effort 6–7)
Three rounds of one minute of high-knee marching, knees towards hip height, then one minute of brisk normal marching.
- 3
Minutes 10–16: side steps (effort 5–6)
Three wide side steps right and three back left, knees soft and hips low. Alternate each minute with step-touch and a forward arm press.
- 4
Minutes 16–22: step-ups (effort 6)
Step up and down on a 10 cm step, right foot leading for a minute, then left, three times each. Put the whole foot on the step and keep a hand near the rail.
- 5
Minutes 22–26: pace intervals (effort 7, then 4)
Four rounds of 30 seconds of fast marching with a strong arm drive and 30 seconds easy.
- 6
Minutes 26–30: cool down
Two minutes of slow marching, then calf, hip-flexor and thigh stretches.
A quiet walking workout for apartments and flats
This low-noise version keeps the thud out of the neighbours' ceiling: nothing leaves the floor at speed. Use a yoga mat or rug, go barefoot or in soft soles, and raise the effort with longer strides, arm work and slow, controlled movements instead of stamping.
- 1
Minutes 0–5: silent march (effort 3–4)
March on the mat, placing each foot down as if on glass, arms swinging fully.
- 2
Minutes 5–12: hallway laps (effort 5)
Walk the longest straight line in your flat with long strides and a strong arm swing, turn and repeat.
- 3
Minutes 12–18: toe taps and reaches (effort 5)
Tap one foot forward and reach both arms overhead, then switch. Alternate each minute with side step-touch, reaching across your body.
- 4
Minutes 18–24: slow knee lifts (effort 5–6)
Lift one knee to hip height, hold for two seconds, lower slowly and switch. Hold a wall if you wobble.
- 5
Minutes 24–27: back steps (effort 6)
Step one foot back into a short reverse lunge, return and switch, only as deep as your knees are comfortable.
- 6
Minutes 27–30: cool down
Slow marching, then calf and hip stretches, breathing out slowly.
For quiet strength work, our home workout plan for beginners has four weeks of no-jump sessions. If your building has a clubhouse gym with a treadmill, see training at your apartment gym with an online trainer.
Can you walk on stairs and building corridors safely?
Yes, if the stairwell is lit, dry and has a handrail, and you climb at a pace you control. The Compendium rates slow stair climbing at 4.5 METs and walking down at 3.5, so the climb does most of the work. If your knees complain on the way down, take the lift down.
- Keep a hand on or near the rail and take one step at a time.
- Watch for freshly mopped floors and wet monsoon landings.
- Don't read your phone on the stairs; set a timer before you start.
- Start with 5 minutes of stairs inside a 30-minute session and add a few minutes a week if your knees and breathing are comfortable.
How do you keep the air cleaner indoors on a high-AQI day?
Keep external doors and windows shut in the morning and late evening, and air the house, if you need to, between 12 noon and 4 PM. That is the 2025 health ministry advisory for days of poor to severe air. It also recommends wet mopping instead of sweeping, no mosquito coils or incense sticks in closed rooms, and a ventilated kitchen, with an exhaust fan or open window, while cooking.
The advisory is cautious on purifiers: they may be beneficial when the AQI is above 200, it suggests expert advice on size and type, and it warns against purifiers that generate ozone. It suggests air conditioners on recirculate. In a heatwave, the NCDC asks you to keep windows and curtains closed by day, especially on the sunny side, and open them at night, so walk in the coolest room, with a fan, early in the day.
How often should you do an indoor walking workout at home?
Five 30-minute sessions a week make 150 minutes, the weekly minimum of moderate activity the World Health Organization uses for adults. Do the beginner or quiet routine on most days and the intermediate one two or three times a week, with an easier day after it. Indoor days keep the habit alive through a smoggy fortnight or the wettest monsoon weeks.
WHO also says muscle strengthening benefits everyone, and walking doesn't cover it, so add two short strength sessions a week. For step targets and a 6-week outdoor plan, see walking for weight loss; the fat loss goal page shows how walking, strength and food fit together. With knee pain that is getting worse, read knee pain: exercises to avoid and ask a doctor or physiotherapist before adding stairs or step-ups.
When a live coach helps with indoor walking
Most people can follow these routines alone. A coach helps when indoor weeks stretch on, when you want the walking inside a fat-loss plan, or when you have never done strength work. MakeMyFitness is live one-to-one coaching on video across India, at ₹799 a session at a gym or ₹899 at home, and suits someone who wants pollution and monsoon weeks turned into a structured home plan. Personal Home Training is ₹8,080 for 12 sessions over 4 weeks and group classes start at ₹499 per person; see pricing and your first session.
Our coaches are fitness coaches, not doctors, dietitians or physiotherapists. With asthma, heart disease or a recent injury, get your doctor's advice first; Rehab & Recovery is exercise coaching only after a clinician has cleared you. See our medical disclaimer.
Sources
- National Air Quality Index (Control of Urban Pollution Series CUPS/82/2014-15), Central Pollution Control Board
- Advisory on Air Pollution and Health under NPCCHH (updated, with letter dated 1 November 2025), Ministry of Health and Family Welfare, Government of India
- Public Health Advisory: Extreme Heat/Heatwave 2026, National Centre for Disease Control, Ministry of Health and Family Welfare
- Energy cost of stepping in place while watching television commercials (2012), Medicine and Science in Sports and Exercise
- Can sedentary behavior be made more active? A randomized pilot study of TV commercial stepping versus walking (2012), International Journal of Behavioral Nutrition and Physical Activity
- 2024 Adult Compendium of Physical Activities: walking, Adult Compendium of Physical Activities
- 2024 Adult Compendium of Physical Activities: conditioning exercise, Adult Compendium of Physical Activities
- 2024 Adult Compendium of Physical Activities: a third update of the energy costs of human activities, Journal of Sport and Health Science
- How to Measure Physical Activity Intensity (4 December 2025), Centers for Disease Control and Prevention
- Physical activity fact sheet (26 June 2024), World Health Organization
Written by the MakeMyFitness team from the sources above. First published , last updated . Spotted something out of date? Tell us at hello@makemyfitness.com.
