Stand where the camera sees you from head to feet, with room on both sides.
2
Do a jumping jack on each beat: arms up and feet apart, then back together.
3
Keep it going for four short sets. A jack on the beat sends a bigger firework.
About this game
Each jumping jack launches a firework over the city. Land it on the beat for a bigger one, and at the end every firework bursts again as a finale. Four sets with short rests. On a big screen, two people can share one sky.
Where to stand
Full body
Head to ankles in view. Stand 2 to 3 m from a laptop or 1.5 to 2 m from an upright phone.
What it measures
Whether both arms go overhead and your feet come apart.
How close each jack is to the beat.
It does not measure heart rate or give medical advice.
Seated, quiet and low impact
Seated version
Arm jacks: open and close your arms overhead from a chair.
Quiet mode
Step jacks: step one foot out to the side instead of jumping.
Safety
Before you start. Check with a doctor if you are pregnant, have a heart or joint condition, or feel pain when you move. Stop if you feel dizzy or a sharp pain. Children play with an adult nearby.