FastFit BETA
BasicCardio
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Speed for this exercise

Low-Impact Step Jack

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3sets
45stime
20srest
~4.9kcal/min

How to do it

Muscles worked

Secondary
ShouldersAbductorsCalves

Secondary muscles help but are not the main target

Feel it right

Where you should feel it, the one cue to remember, and quick fixes when you feel it somewhere else.

You should feel it inFull Body

Breathing harder and heart rate up; legs (or arms) working steadily.

Key cue (the coach says it during the set)“Keep a pace where you can still say a short sentence.”

Tempo · Steady rhythm

Feel it somewhere else? Fix it like this

  • Feel it in KneesKnee or shin pain from impact. Land softly on the balls of the feet, shorten the stride, or switch to a low-impact version.
  • Feel it in Lower backLower back tired. Stand tall, brace lightly, avoid leaning forward.
  • Barely felt itNot breathing hard yet? Pick up the pace or add bigger arm movements.
  • Joint painSharp or joint pain is a stop sign: end this set, lower the weight, shorten the range — if it repeats, switch to an easier variation.

During a workout we ask after the first set where you felt it and give the fix right away — and remember it for next time.

Tips

  • A joint-friendly option when jumping is not comfortable — there is no impact at all.
  • Reach fully overhead and move briskly to keep your heart rate up.

Common mistakes

  • Moving so slowly that your heart rate barely rises.

Breathing

Breathe steadily, exhaling as your arms go up.

Equipment needed

Alternatives for the same muscle