How many can you do in under 15 seconds??? This is possible the hardest challenge you yet have tried I’m not gonna lie, this might be easier for some of you than me. My hip flexibility and strength is really bad, so it’s a little more difficult for me to get off the bottom Get it done 💪🏽 #traininsaneorremainthesame #workoutmotivation #workoutchallenge #gymmotivation #fitnesschallenge #challenge #corestrength #coreworkout