When we perform stretching exercises, we are not stretching the muscles and trying to make them longer. We are trying to teach the muscles to relax while under they are working under tension. This will let then reach the full length. If they are not relaxed, they will contract and get shorter. Therefore, to kick higher, relax the muscles. When muscles are stressed, they contact in self-defense, i.e. cramps. When they are happy, they relax. Keep your muscles happy!
When stretching muscles for flexibility, use temperature, tension, and time.
- Temperature. Warm the muscles with some light aerobic exercise, such as jogging in place.
- Tension. Apply the tension exercise slowly.
- Time. Hold the tension for at least 10 seconds before relaxing.