Push-upsA classic strength-training move that builds upper body strength and stabilizes the core, improving both muscle tone and endurance. Place your hands slightly wider than shoulder-width apart, keeping your body in a straight line from head to heels. Lower your chest towards the ground and then press back up. Jumping jacksHorrible as they are, these improve cardiovascular stamina and engage the lower body, arms, and core muscles. Start with your feet together and hands by your sides. Jump your feet out to the sides while raising your arms above your head, then return to the starting position. Forward foldThis underrated stretch helps relieve tension in the lower body and promotes flexibility along your backside. Stand with your feet hip-width apart, then hinge at the hips to slowly lower your torso toward the floor, keeping a slight bend in the knees. Reach toward the ground. If possible, touch your toes. Hold the position for 20-30 seconds. The TRX Tornado Vegas’ go-to full-body exercise is this TRX challenge, which targets strength, stability, and endurance. TRX Low Row …