Sit on weight bench. Stick one leg straight out. Get up all the way on one leg and back down, touching butt only a second before rising back up. Do 15 or so on one leg, then switch. Good for hams, quads and glutes.
Lie down face up. Position big swiss ball under heels, then raise your butt so you have a straight line from shoulders to heels. Raise one leg straight up into air. Keeping your bridge high, pull in ball with your one heel as far as possible, then roll slowly back out. Repeat to failure
At all times, no saggy butt! This works core as well as hams. Your hands will be flat on the floor beside you during the exercise.
I like walking lunges too and Bulgarian squats (one foot on weight bench - other foot way out on floor - bend knee on front leg as much as possible) JoAnn