鍛錬How to do Step jack
Step jack works the Full body (apartment-friendly cardio) with no equipment. Key cue: “Step one foot out as you raise your arms. No jumping, so it's quiet”
Steps
- Stand with your feet together
- Step your right foot out while raising both arms overhead
- Return and repeat with your left foot
How many: 30–60 sec
Muscles worked
Full body (apartment-friendly cardio)
Common mistakes
- Arms drooping
- Rounding your back
Easier or harder
| Easier | Raise your arms only to shoulder height |
|---|---|
| Harder | Sink into a slight squat on the stepping side |
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Results are rough estimates from general formulas, not medical advice. If you have a medical condition, are pregnant or breastfeeding, or are under treatment, talk to your doctor before you start. Stop right away if anything hurts.