@dustydoesmobility: Lifting the knee high enough to clear a curb or a stair without hitching the hip takes hip flexors that can actually lift, and sitting on them all day shuts them off. Seated Leg Lifts sit tall with the legs straight out and the hands beside the hips, then raise both heels off the floor and hold, so the hip flexors and quads do the lifting while the core keeps the back from rounding. 10 slow reps. Save this. Subscribe for daily mobility and strength. #seatedleglifts #hipflexors #quadstrength #corestrength #bodyweighttraining