Jog 100 meters, one squat Jog 100 meters, two squats Jog 100 meters, three squats Keep going to 10 squats and mix dynamic stretches as needed during any of the 100-meter jogs. Maintain running ...

Whether you're preparing for a fitness test, looking to increase your running performance, or simply seeking a challenging and effective way to train, this dynamic workout delivers.

A Salem teen holds the Guinness World Record for fastest female to run 100 meters on all fours. Mayumi Sugahara, 14, broke ...