Lie on your back with your knees bent and feet flat on the floor.
Ensure your maintain a hips distance between your feet and knees.
Tighten your pelvic floor and abdominal muscles, ensuring you keep a small arch in your lower back.
Keeping the tension in your core stability muscles, lift one arm forwards and up towards the ceiling.
Simultaneously slide your foot on the same side along the floor until your leg is straight.
Continue the movement, raising your arm overhead.
Your lower and upper back should stay in the same position throughout this movement.
Once your arm and leg are straight, control the movement as you simultaneously bring your arm back down and bend your leg back in.
Relax your core stability muscles before you repeat the sequence again.