@coach.bluee: Core strength Level 1000 🚨 Anyone out there wanna give this one a try ? Let’s see what we got… #traininsaneorremainthesame Tag a friend that trains insane !!! 🙏🏽 #corechallenge #corestrength #coreworkout #workoutchallenge #plank #plankchallenge #militaryfitness #supportmilitarymuscle #marines #armedforces #danger