Plank jacks – how to do it right
In a plank, jump your feet apart and back together.
This is how Stickfreed, our glowing stick figure, shows you the exercise on your TV – here the start, middle and end position. In the app he turns slowly so you can see everything.
How to do it
- High plank, hands under your shoulders.
- Jump your feet apart and back together.
- Hips stay still and in line.
- Quieter: tap one foot out to the side in turn.
How long?
In BLOX: 30 seconds on, 10 seconds rest, three rounds.
If something niggles
Kids asleep or neighbours below? Don’t fancy the floor? Shoulder niggling? Then do Mountain climbers instead – BLOX swaps it automatically if you mention it at the start. Stop if it hurts; if you have complaints or pre-existing conditions, check with a doctor or physio first.
In BLOX
Part of these blocks: Full-body HIIT. BLOX builds your workout from them – based on your time, energy and how you feel today.