Start with feet together, then jump while spreading arms and legs outwards. Return to starting position and repeat.
Stand in place and lift knees towards chest alternately, as if jogging in place.
Get into plank position and lower body by bending elbows, then push back up.
Stand with feet shoulder-width apart, then lower body into a sitting position, keeping knees behind toes.
Step forward with one leg, lowering body until both knees form 90-degree angles. Alternate legs.
Hold push-up position with body straight, resting weight on forearms and toes.
Lie on back, lift legs and bend knees. Touch right elbow to left knee, then alternate sides.