Training6 min read
A short warm-up to do before lifting
Skipping the warm-up is one of the easiest habits to fall into once a session feels routine, but a short one only costs a few minutes. This guide gives a repeatable 6-8 minute routine to do before every weights session, whatever you're training that day.
The short answer
Spend 2-3 minutes on light cardio such as walking or cycling, then 3-4 minutes on dynamic movements like leg swings, arm circles and bodyweight squats, followed by one or two light warm-up sets of your first exercise before your working weight. This raises your heart rate, prepares your joints and rehearses the movement pattern.
- 2-3 minutes of light cardio to raise your heart rate
- 3-4 minutes of dynamic movements for the joints you'll use
- One or two light sets of your first exercise before working weight
- Total time: about 6-8 minutes
Why a short warm-up is worth the time
A brief warm-up raises your body temperature and heart rate, which makes your muscles and joints more prepared for load. It also gives you a chance to rehearse the movement pattern of your first exercise with a light weight, so your first working set is not the first time you've moved that way that day. This guide is general fitness guidance for healthy adults aged 18 and over; anyone with a joint or muscle condition should check with a health professional first.
This does not need to take long. A focused 6-8 minutes covers the main benefits without cutting significantly into your session time.
- Raises heart rate and body temperature before working sets
- Rehearses movement patterns with light load first
- Takes only 6-8 minutes out of your session
- Can be adjusted based on which exercises you're doing that day
A 6-8 minute warm-up before lifting
Step 1
Light cardio (2-3 minutes)
Brisk walking, a stationary bike or a rowing machine at an easy pace.
Step 2
Leg swings and arm circles (1-2 minutes)
10-12 leg swings each side, then 10-12 arm circles each direction.
Step 3
Bodyweight squats (1 minute)
10-15 controlled bodyweight squats to open up the hips and knees.
Step 4
Light warm-up sets (2 minutes)
One or two sets of your first exercise using roughly 40-60% of your working weight.
Adjusting the warm-up to your session
| Session focus | Dynamic movements to prioritise |
|---|---|
| Legs (squat, leg press) | Leg swings, bodyweight squats, hip circles |
| Push (chest, shoulders) | Arm circles, shoulder rolls, light push-ups |
| Pull (back, biceps) | Band pull-aparts, arm swings, cat-cow stretch |
| Full body | A mix of leg swings, arm circles and bodyweight squats |
You don't need every movement in the table every session. Picking two or three relevant to your first exercise is enough to keep the whole warm-up within the 6-8 minute target.
Warm-up mistakes worth avoiding
| Mistake | Why it matters |
|---|---|
| Skipping the warm-up when short on time | First working set becomes the first movement rehearsal of the day |
| Long static stretches instead of dynamic movement | Can reduce muscle power just before lifting |
| Jumping straight to your heaviest weight | No lighter rehearsal set to check technique and readiness |
| Using a warm-up unrelated to the session | Misses the joints and muscles you're about to load |
Making the warm-up a habit
The warm-up is most useful when it's done every session, not just when you remember. Treating it as the fixed first 6-8 minutes of your gym time, rather than an optional extra, makes it far more likely to happen consistently.
What a warm-up changes, and what it does not
A warm-up raises muscle temperature, gets blood moving and rehearses the movement you are about to load. The practical result is that the first working set feels like the third one usually does. What it does not do is guarantee freedom from injury, and stretching a cold muscle hard beforehand can leave you slightly weaker for the session.
| Part | Purpose | Time |
|---|---|---|
| A few minutes of easy cardio | Raises temperature and heart rate | 3 to 5 minutes |
| Dynamic movement | Takes joints through the range you are about to use | 2 to 3 minutes |
| Light sets of the first lift | Rehearses the pattern and finds the right weight | 2 to 3 sets |
| Long static stretching | Little benefit before lifting, better afterwards | Skip beforehand |
The two-minute version
On a rushed day the temptation is to skip the warm-up entirely and start heavy. A shortened warm-up is a far better compromise, and it costs almost nothing.
Step 1
One minute of brisk walking or stair climbing
Enough to feel slightly warmer and breathing a little faster.
Step 2
One light set of your first exercise
Around half the weight you plan to work with, for about ten easy reps.
Step 3
One medium set
Roughly three quarters of your working weight, for about five reps.
Step 4
Start the session
Later exercises need no separate warm-up if they use muscles you have already trained.
Common questions
- How long should a warm-up be before lifting weights?
- Around 6 to 8 minutes is enough for most beginner sessions. This covers light cardio, a few dynamic movements, and one or two light warm-up sets of your first exercise, without cutting significantly into your training time.
- Should I stretch before or after lifting weights?
- Dynamic movements such as leg swings and arm circles are more useful before lifting, since they prepare joints for movement without reducing muscle power. Static stretching, holding a stretch for 20-30 seconds, is generally better saved for after your session.
- What is a dynamic warm-up?
- A dynamic warm-up uses moving stretches and light exercises, such as leg swings, arm circles and bodyweight squats, rather than holding a stretch still. It raises your heart rate and rehearses movement patterns you're about to use.
- Do I need to warm up if I'm only lifting light weights?
- A short warm-up is still worthwhile even with lighter weights, since it prepares your joints and raises your heart rate. It can be brief, perhaps 4-5 minutes, but skipping it entirely increases the chance your first set feels stiff or awkward.
- What should my warm-up sets look like before my main lift?
- One or two sets using roughly 40 to 60% of your planned working weight, for 5-8 reps, is a sensible approach. This rehearses the movement and prepares the muscle without adding fatigue before your working sets.
- Can a warm-up prevent injury during weight training?
- A warm-up helps prepare your muscles and joints for load and can make training feel more comfortable, but it cannot guarantee against injury. Using controlled technique and appropriate weights matters more overall, and you should speak to a health professional about any existing joint concerns.
References
Every figure in this guide traces to one of these documents. Open them and check.
- Acute effects of muscle stretching on physical performance, range of motion, and injury incidence — Applied Physiology, Nutrition, and Metabolism
- UK Chief Medical Officers' physical activity guidelines — Department of Health and Social Care
Educational information for adults aged 18 and over. It does not diagnose, treat or manage any medical condition. If you have a health condition, or symptoms that worry you, speak to a qualified clinician.