This isn’t a complete workout program, but it is a great routine that you can do almost anywhere, anytime. And it’s a fantastic substitute for 15 minutes on the treadmill.
Kettlebell (or Dumbbell) Swing
Bend at your hips, and hold a kettlebell (or dumbbbell) with both hands at arm’s length in front of you. Now, rock back slightly and “hike” the kettlebell between your legs. Then squeeze your glutes, thrust your hips forward forcefully, and swing the weight to shoulder height. Allow momentum to swing the weight—you’re not trying to actively lift it with your arms. Reverse the movement, so that you swing the kettlebell between your legs again. Make sure you don’t round your lower back at any time; it should stay naturally arched when you bend at your hips. Continue to swing back and forth.
Stand with your feet slightly wider than shoulder-width apart. Bending at your hips and knees, squat down and lower your body until you can place your hands on the floor. Kick your legs backward—into a pushup position—and then immediately reverse the move and quickly stand up from the squat. That’s one rep. To make the exercise even more challenging, you can jump up from the squat instead of simply standing up quickly