Let’s launch the sequel to the beloved Rocket Legs workout to gain leg strength, endurance and cardio. Ready? Blast off! You need: A timer, a sturdy chair. Mat optional. Warm up: 25 jumping jacks | 20 half squats | 20 wall push-ups | 20 good mornings | 20 full squats | 20 walking lunges | 10 squat jumps | 30 high knees   […]