A few minutes of easy movement before your first set changes what your muscles, joints and nervous system can do, and it is the part people skip most often. Here is what it does and what a sensible one looks like at home.
What a warm-up changes in the body
A 2003 review by David Bishop in Sports Medicine put most of the benefit down to temperature. As working muscle warms, stiffness drops, nerves conduct faster, and the muscle produces force more quickly. Blood flow rises, so more oxygen reaches the tissue before it works hard.
- Warmer muscle lengthens more easily, so the first repetitions feel smoother.
- Joints move more freely after a few minutes of motion as synovial fluid spreads across the surfaces.
- Faster nerve conduction means better timing and control, which matters for balance work.
Does it reduce injury?
The FIFA 11+ is a structured 20-minute warm-up of running, strength, balance and landing drills. A 2017 meta-analysis in the British Journal of Sports Medicine pooled four cluster-randomised trials of it and found a 39 percent reduction in overall injuries (incidence rate ratio 0.61, 95 percent CI 0.48 to 0.77). That is far more than a rehab session needs, but the principle carries over: prepare the tissue before loading it.
What counts as a warm-up at home
You are not warming up for a match. Two to five minutes of easy, rhythmic movement is enough, then a light version of your first exercise.
- March on the spot for one to two minutes, swinging the arms.
- Step up and down on the bottom stair, or stand up from a chair, for 10 to 15 easy repetitions.
- Arm circles or shoulder rolls for an upper body session; ankle pumps or gentle knee bends for a leg session.
- Then one short set of the first exercise at half effort or half range.
Why static stretching is not the warm-up
Holding a stretch for 30 seconds feels like preparation, but it does the opposite of what a warm-up should. A 2013 meta-analysis in the Scandinavian Journal of Medicine and Science in Sports pooled 104 studies and found that static stretching before exercise cut strength by about 5 percent on average, with the smallest effect from holds of 45 seconds or less. The authors concluded it should not be the only activity in a warm-up. Keep long holds for the end of the session.
For where each kind belongs, see our guide to static vs dynamic stretching
When the plan is short, or you are older
If your plan is three exercises and ten minutes, do not spend half of it marching: one minute of easy movement plus a light first set is proportionate. If you are older, or stiff in the morning, lean the other way. Take the full five minutes, start slower, and give the joints a few extra gentle cycles first.
Warming up before a guided session
If you use KineTrue, a short warm-up before you press start helps the first repetitions match the movement the camera is checking for. Your therapist can compare early and later reps in the recorded results and adjust the lead-in if you seem to start cold.
A warm-up should feel easy and leave you slightly warmer, not breathless or sore. Stop and check with your therapist if gentle movement brings on sharp pain, swelling, dizziness or chest tightness, and ask before adding any activity your plan does not include.