Jumping jack
Muscles worked: Full body
Coach tip
Keep your core tight and your movements controlled.
How to do it
- Stand facing the camera with your whole body in frame and your arms at your sides.
- Jump your feet apart and swing your arms overhead at the same time.
- Bring them back on the next jump - one out-and-back counts as a rep.
Where to put your phone
Standing up, phone upright, about 2 meters away, with your whole body in frame.
Free, right in your browser — nothing to install.
How Digital Fit counts and corrects
Your phone camera tracks 33 points on your body and Digital Fit reads the movement from them — the video never leaves your device and is never recorded.