Always start your workouts with a good, thorough dynamic warm-up, which activates and warms your muscle groups, and gets everything firing properly. This warm-up begins slowly on the floor and progresses all the way to jogging.
Positional breathing
Floor angels with posterior pelvic tilt
Posterior pelvic tilt w/ bridges
Knee to chest hugs
Quad stretch
Single leg dead lift w/ forward reach
Squats
Forward split squats
Jumping jacks
High knee jogging