1. Today, we will learn some yoga moves.

2. Today, we will learn some yoga movements.
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Can we use 'movements' instead of 'moves'? Which one do you use frequently?

3. Hold the tree pose for 30 seconds.
4. Keep the tree pose for 30 seconds.
5. Maintain the tree pose for 30 seconds.

(Can we use the three verbs? Do they have the same meaning? Which verb is freequently used?)

The verbs in both examples do mean the same thing. "Hold", "keep", and "maintain" are synonymous in this context. We might more frequently say, "Hold the pose...", but not necessarily. "Moves" and "movements" are synonymous. "Move" is rather an abridgement of "movement" in this context, and more casual. I have no idea what yoga participants would most commonly say. I don't do yoga. :)