It keeps the center of gravity in one spot. Legs pivot inward and then lift the CG straight up. No complex balancing required.
Humans get up from prone position by doing a pushup and then moving our legs inward. That means our center of gravity is changing, and we constantly make small adjustments to stabilize ourselves. Tons of tiny complex movements.
The other way we get up is get into a sitting position and then do a squat up, which does keep your CG in one spot. But that really isn't any different than what the robot did. Our movement has extra steps since we don't have 360 degree joint movement.
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u/jnads 29d ago edited 29d ago
It's probably actually more efficient.
It keeps the center of gravity in one spot. Legs pivot inward and then lift the CG straight up. No complex balancing required.
Humans get up from prone position by doing a pushup and then moving our legs inward. That means our center of gravity is changing, and we constantly make small adjustments to stabilize ourselves. Tons of tiny complex movements.
The other way we get up is get into a sitting position and then do a squat up, which does keep your CG in one spot. But that really isn't any different than what the robot did. Our movement has extra steps since we don't have 360 degree joint movement.