I have been doing plank hold in good form since atleast 2-3 months. I get shakey after 10 seconds even though I can hold it between 60-75 seconds. I don't see any improvement in shakiness.

What does it mean? Is it Weak core?

  • Generally it's a weakness thing. If you're not already doing compound barbell work (deads/squats/ohp/cleans) consider starting. Front squats in particular require a lot of abdominal strength.
    – Eric
    Sep 20 '14 at 16:41

There are different reasons you start shaking when performing an exercise.

  1. Imbalance of power.
  2. Not enough muscle power.
  3. Fatigue.
  4. Lack of oxygen to the muscles.

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