Besides strength and agility it requires a bit of skill and like any skill it takes practice.
Learn how to stand from sitting on floor.
Because toddlers often play on the floor and also like to move around a lot i found many examples.
And that will help you build the strength to stand from a seated position on the floor.
Roll backwards and stand.
Doing the sit to stand exercise with a small object between your legs can help with this.
Press the ball or other object between your legs and squeeze your legs together to keep the object in place as you stand.
How to get up off the floor with minimal support.
Cross legged stand up with right leg in front.
The rotation also improve flexibility in the opposite hip.
Improving balance in standing with support.
From cross legged sitting position.
Place both hands back crab up walking feet in then come to squat and stand.
I did manage to find a few clips showing young children standing up from sitting.
Working on standing up from sitting strengthens the infant s leg muscles and trains coordination and control.
If you have a small exercise ball or even a kid s bouncy ball this is ideal but almost any small object can work.
Infants need to learn to balance in standing using one hand and to shift their weight across the feet before they are able to take a step and start to crusie.
Toddlers will usually stand up through bear standing while the older child prefers to move directly from sitting to squatting and then standing up.
Sitting down and standing up from the floor without leaning on anything or using your hands knees for support is actually a little tricky.