Stretching allows the body to cool down and also helps the heart beat to return to normalcy. The release of lactic acid during an intense workout is broken with stretching. This allows muscle recovery and repair. The blood circulation to the muscles is once again resumed with stretching
When it comes to pre-workout stretching, stretching before a workout helps your body to become more pliable, which decreases your risk for injury. … Post workout stretches are great for helping your body to move excess lactic acid out of your muscles, which can help you avoid post workout soreness.