5-Minute Core-Strengthening Workout For Runners

• Begin on your stomach with your arms extended in front of you.
• Keeping your neck neutral and in line with your spine, lift your feet, arms, and chest from the floor.
• Begin to "swim" by lifting your opposite arm and leg a little higher, then alternate sides making a fluttering motion.
• Continue for this movement for 60 seconds.

Sit back on your heels and lower your chest to your knees to stretch your back with a child's pose. Hold the stretch for 30 seconds.