Warming up and cooling down are the two parts of a home workout that get skipped first when time is short — and they’re also the two parts with the clearest evidence behind them for reducing injury risk and improving how a session actually feels. This article covers what a warm-up and cool-down should include for common home equipment, how long they need to be, and where the evidence is solid versus where it’s more about comfort than proven injury prevention.
Why warming up matters
A cold muscle is less elastic and your joints move through a smaller comfortable range than they do once you’ve raised your body temperature and got blood moving through the muscles you’re about to use. NHS guidance recommends a warm-up of around 5 to 10 minutes before exercise, built around light aerobic movement and mobility work rather than static stretching held for long periods (NHS, How to warm up before exercising).
The practical effect for home training: a proper warm-up means the first “real” set of your workout — the first heavy squat, the first hard interval on the bike — happens with a body that’s actually ready for it, rather than being the warm-up by accident.
What a warm-up should actually include
A useful home warm-up has two parts, and both matter more than any single “magic” stretch:
1. General aerobic movement (2–5 minutes)
Anything that raises your heart rate gently and gets you slightly out of breath: marching on the spot, a light spin on an exercise bike, an easy jog on a treadmill, or a few minutes of rowing at low resistance. The goal is a mild sweat and warmer muscles, not fatigue.
2. Movement-specific mobility (3–5 minutes)
Dynamic movements that rehearse the pattern you’re about to train, rather than static stretches held still. Before a strength session this might mean bodyweight squats, arm circles, and light band pull-aparts; before a run or a rowing session it might mean leg swings and a few strides at an easy pace building towards your working intensity. The principle is to move the joints you’re about to load, through a range close to what you’ll use in the session, before adding weight or speed.
Static stretching — holding a stretch still for 20–30 seconds — is better placed after the session than immediately before a strength or power-focused workout; some evidence suggests holding deep static stretches right before lifting can temporarily reduce how much force a muscle can produce, which is the opposite of what you want heading into a working set.
Why cooling down matters
A cool-down brings your heart rate back down gradually rather than stopping abruptly, and gives you a structured few minutes to stretch muscles that are already warm — which is the point in a session when static stretching is most useful for improving flexibility and easing tension. The NHS recommends a cool-down routine of around 5 to 10 minutes, including stretches for the muscle groups you’ve just trained, done gradually rather than rushed (NHS, How to stretch after exercising).
A simple cool-down structure
- 2–3 minutes of easing off — slow walking, gentle pedalling at low resistance, or light rowing, to bring your breathing and heart rate down gradually rather than stopping abruptly mid-effort.
- 5 minutes of static stretching for the muscles you trained, holding each stretch for around 20–30 seconds without bouncing, breathing normally throughout.
This takes less time than most people assume, and fits naturally at the end of a session on whatever machine you finished on — an exercise bike or rowing machine both work well for the “easing off” phase since you can control the pace precisely as you wind down.
Common mistakes at home
- Skipping the warm-up entirely on “just a quick session” days. Short workouts are exactly when a rushed cold start is most tempting, and exactly when it matters just as much — a 20-minute session with no warm-up carries the same joint and muscle risks as a longer one.
- Doing the warm-up with the wrong equipment for the session. A general warm-up (a walk, some mobility work) is fine before any session, but if you’re about to do a heavy lower-body strength session, a few light warm-up sets of the actual exercise with an empty bar or light dumbbells — building up towards your working weight — is more effective at preparing the specific joints and muscles than cardio alone.
- Treating the cool-down as optional once the “real” workout is done. It’s a small time cost (5–10 minutes) against a workout that’s often 30–60 minutes, and the difference in next-day stiffness is often noticeable, particularly after a hard cardio or leg session.
- Static stretching cold, before any aerobic warm-up. Stretching a genuinely cold muscle is less effective and slightly increases strain risk compared with stretching after a few minutes of light movement has already raised its temperature.
Building it into equipment you already own
You don’t need separate warm-up equipment. A treadmill or exercise bike at an easy pace covers the aerobic portion; bodyweight squats, lunges and arm circles cover mobility without any kit at all; and the cool-down stretch routine needs nothing beyond floor space and, optionally, a mat. If you’re deciding what to buy for a small space and want one machine that can double as both your main cardio session and a reliable warm-up tool, our comparison of treadmills, exercise bikes and rowing machines covers which format suits a mixed cardio-and-warm-up role best.
When to be more cautious
If you’re returning to exercise after an injury, surgery, or a long break, or you have a joint condition, a longer and gentler warm-up — and specific mobility work recommended by a physiotherapist rather than a generic routine — is usually more appropriate than the general structure above. This article is general guidance for healthy adults; it isn’t a substitute for advice from a GP or physiotherapist about your specific situation.
Sources: NHS, How to warm up before exercising (nhs.uk); NHS, How to stretch after exercising (nhs.uk); NHS, Physical activity guidelines for adults aged 19 to 64 (reviewed 22 May 2024).