Arnold Split: The 6-Day Workout Plan, Sample Week and Home Version
The Arnold split explained: a 6-day chest and back, shoulders and arms, legs rotation run twice a week. Full sample week, who it suits, home and 4-day versions.
By Jacob Chambers, Founder & Lead Reviewer · Updated 28 September 2026
A walking pad under a standing desk sounds like a gadget-shop idea, but it solves a real problem. Most home workers sit for eight hours or more, and the NHS warns that long spells of sitting raise health risks even in people who exercise. Walking slowly while you answer emails turns some of those hours into light activity without taking time out of your day.
The energy cost is bigger than most people expect. In a Mayo Clinic study, sedentary office workers with obesity burned an extra 119kcal an hour walking at a self-chosen 1.1mph at a treadmill workstation compared with sitting (British Journal of Sports Medicine, 2007). Two hours a day, five days a week, adds up to more than 1,000kcal.
What actually decides whether you keep doing it is the setup, because a pad at the wrong height with the screen too low will have you back in your chair by Wednesday.
Desk height. Stand on the pad (switched off) in your walking shoes. Let your arms hang, bend your elbows to 90 degrees, and set the desk at that height or a touch lower. Walking pads are usually 12cm to 16cm tall, so the desk has to rise that much higher than your normal standing position. Check your desk's maximum height before you buy anything.
Screen height. Top of the screen at or slightly below eye level, about an arm's length away. Laptop users need a stand and a separate keyboard; looking down at a laptop screen while walking is how you get a sore neck in a week.
Position of the pad. Centre it under the keyboard so you're walking in the middle of the belt, not drifting towards the front edge. If the desk has a crossbar at the back, make sure your toes won't catch it.
Floor. A rubber mat under the pad cuts noise and vibration, which your downstairs neighbours will appreciate.
If you'd rather skip the desk adjustment entirely, the UREVO 4-in-1 desk treadmill comes with its own height-adjustable desk built on.
Slower than you think. Start at 2km/h, which feels almost comically slow, and stay there for the first few days. Most people end up between 2km/h and 3.5km/h while working.
Match speed to the task:
| Task | Speed |
|---|---|
| Detailed spreadsheets, design, editing | 1.5 to 2km/h, or stop |
| Emails, writing, reading | 2 to 3km/h |
| Phone calls, video meetings (camera off) | 3 to 4km/h |
| Listening to a webinar or training video | 3.5 to 4.5km/h |
Keep the incline at zero while typing. Incline changes your posture and makes you reach for the desk.
Walking doesn't seem to hurt your thinking. In a randomised trial of 69 adults, walking at 1.5mph (about 2.4km/h) made no difference to performance on attention and response-control tasks compared with sitting (Frontiers in Psychology, 2015). Precise mouse work is another story, so slow down or stop for it.
Your feet and calves need time to adjust, even at slow speeds. A sensible first month:
Alternate walking and sitting rather than walking all day. The benefit comes from breaking up long stretches of sitting, and eight hours on your feet brings its own aches.
Holding the desk. If you're leaning on it, you're walking too fast or the desk's too high. Arms should rest lightly on the surface.
Wrong shoes. Slippers and socks slide, and bare feet on a warm belt for two hours gets uncomfortable. Wear the trainers you'd walk in outdoors.
Going too fast on day one. People set 4km/h, find they can't type, and decide the whole idea doesn't work. Start slow.
Forgetting the safety key. Clip it on. If you step off to answer the door, the belt should stop.
Buying a pad with too short a deck. A walking pad with a belt under about 100cm long feels cramped if you're tall. Our best walking pad guide lists belt lengths for every model.
A pad burns more energy and suits standing desks. An under-desk bike works with a normal sitting desk and is quieter, but your legs do less, and some people find the pedalling motion distracting. If your desk won't go high enough for a pad, an under-desk bike from our best under-desk bike guide is the practical alternative.
For proper workouts at lunchtime, lift the pad's handrail (if it has one) and do an incline session; the 12-3-30 workout is the obvious choice if your pad's incline goes high enough.
Most people type comfortably between 2km/h and 3.5km/h. Start at 2km/h for the first week. Go faster for calls and reading, and slow down for detailed work like spreadsheets or editing.
Start with two 30-minute blocks a day and add 15 minutes a week. Many regular users settle at 2 to 3 hours spread through the day. Walking all day isn't the goal; breaking up long stretches of sitting is.
Stand on the walking pad, let your arms hang, then bend your elbows to 90 degrees. The desk surface should sit at elbow height or just below. Remember the pad raises you by its own height, usually 12cm to 16cm, so the desk needs to go higher than your normal standing setting.
For thinking tasks, the evidence says not much. A randomised trial found walking at 1.5mph had no effect on attention or response-control tasks compared with sitting. Fine mouse work and fast typing are a bit harder, which is why most people slow down for them.
Most, provided the desk goes high enough once you add the pad's height and there's clearance between the legs. Measure the gap between your desk legs before buying; many walking pads are 55cm to 65cm wide.
The Arnold split explained: a 6-day chest and back, shoulders and arms, legs rotation run twice a week. Full sample week, who it suits, home and 4-day versions.
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