They discover that to stay balanced, they must keep their feet directly below their center of mass. Students then compare their own stability as their center of mass shifts when they make postural changes and lift heavy objects.
(they; lift; heavy objects) (they; make; postural changes) (Students; compare; their own stability; as their center of mass shifts; T:then) Context(Students compare,List([100, 121))):(They; discover; that to stay balanced, they must keep their feet directly below their center of mass) Context(They discover Students compare,List([0, 121))):(they; must keep; their feet)
Students compare,List([100, 121)) They discover Students compare,List([0, 121))
they they Students They they
lift make compare discover must keep
heavy objects
postural changes
their own stability as their center of mass shifts T:then
that to stay balanced, they must keep their feet directly below their center of mass
their feet