Come down to the floor on all fours with your shoulders over your wrists and your toes tucked under.
Activate your core by pulling your belly button in towards your spine.
Twist your hips to the right hand side so that they drop towards the floor.
As you do that, kick the right leg under and across the body with your foot flexed.
Bring your left hand behind your head and open your chest so that your elbow are turned towards the ceiling.
Take your right leg back, place your left arm down and bring your hips back to the starting position.
Repeat on the other side.

Home workouts: a quiet low-impact cardio workout so you won't disturb the people downstairs