These 10 simple exercises work as a dynamic warm up for kids of any age or sport. Do each exercise for 20 to 30 seconds. Repeat as necessary. 10 Dynamic Warm Up Exercises for Youth Athletes http://www.activekids.com/soccer/articles/10-dynamic-warm-up-exercises-for-youth-athletes?cmp=17N-DP20-BND20-SD80-DM10-T9-04262017-424