"Stretch before you exercise" is a long-held belief — but not all stretching makes a good warm-up — done wrong, it can actually increase injury risk.
Static stretching vs dynamic warm-up
- Static stretching (holding a pose for 30+ sec, e.g. toe touch): done before exercise, it temporarily "relaxes" muscles, reducing power — research even suggests it may increase injury risk.
- Dynamic warm-up (jumping jacks, high knees, leg swings, walking lunges): raises body temperature and blood flow — the most effective pre-workout prep.
Key point: stretching is good — but at the wrong time it's a problem. Do a dynamic warm-up before; save static stretching for after.
What does the research say? — static stretching and injury
- Multiple studies find static stretching before exercise does not reduce injury risk, and may temporarily lower muscle strength (Behm et al., 2016).
- By contrast, dynamic warm-up improves performance and lowers injury risk.
- Static stretching is best done after training, to help recovery and joint mobility.
Conclusion: "stretching before exercise" isn't always right — pick the wrong type and you may "stretch yourself into injury".
Summary and recommendations
Remember this simple rule:
- Before training: do a dynamic warm-up (5-10 min) to heat up the body.
- After training: do static stretching (hold each 15-30 sec).
- Don't over-hold: static stretching isn't the longer the better.
- Stop if it hurts: any sharp pain means stop.
In one sentence: stretching before a workout can hurt you if done wrong — dynamic warm-up to prepare, static stretch to relax — getting the order wrong is the problem.
Pre-workout warm-up routine (upper / lower body)
Do a 5-10 min dynamic warm-up before training — no static stretching. Warm-up has three steps: ① activate muscles → ② mobility → ③ general movement. Upper and lower body sets — pick the area you're training today:
Upper body warm-up (shoulders, chest, back)
| Step | Move | Reps |
|---|---|---|
| ① Activate muscles | Band row / light shoulder press | 10 each |
| ② Mobility | Shoulder circles (both ways), thoracic rotation | 10 each |
| ③ General movement | Jumping jacks / march + light press | 30 sec + 10 |
Lower body warm-up (hips, legs, glutes)
| Step | Move | Reps |
|---|---|---|
| ① Activate muscles | Glute bridge / band side walk | 12 each |
| ② Mobility | Leg swings (front-back), hip circles | 10 each |
| ③ General movement | High knees + walking lunge + bodyweight squat | 10-15 each |
Tip: you just want to break a light sweat and raise the heart rate — don't stretch to the point of pain. Activate first, then mobility, then dynamic movement — so the body is truly "ready".