Single-leg ab bike
Start by lying on your back on a yoga mat with your feet extended out in front of you. Bend your elbows to place your hands behind your earlobes. Gently raise both feet, your head and your shoulder blades off the floor. This is your start position. Bend your right leg to bring your knee into your chest. Extend your right leg to return to the start. Once you’ve grasped this, incorporate an upper-body twist (which can be achieved by meeting your knee with the opposite elbow). You’ve got it!