#fastfeetfriday coming in with a core drill you should be implementing into your speed training. Deadbugs and planks are great, but more dynamic core drills like this one help close the gap between general core strength and trunk stability during high speed running. The goal: keep your shoulders stacked and body tall as you march— the resistance from your partner and the band is going to try to pull you over with each step. Don’t let it. #athletedevelopment #sportsperformance #speeddevelopment #speedcoach