Healthcare and Medicine Reference
In-Depth Information
Fig. 10.28 Lying on the back, a baby's first postural preference, supports all three axial weights - head, chest, and pelvis - and all four
appendicular weights - arms and legs - when the baby relaxes them.
Fig. 10.29 Lying on the belly, a baby's first real postural change, achieves support for the head, allowing greater movement, and sets
the stage for its first automotivation, creeping.
Fig. 10.30 Sitting supports two of the heavy axial weights above the pelvis, and allows the baby more manipulative freedom.
Fig. 10.31 Crawling liberates the last of the axial weights - the pelvis - from the floor, but involves support from all four, or at least three
of the four, appendicular limbs.
Fig. 10.32 The increased precision in balance involved in kneeling can only be built on the skills in the previous stages.
Fig. 10.33 As the baby gets on top of the second foot, the seemingly precarious act of walking provides a momentum that makes this
motion easier to maintain at first than the really precarious act of standing.
would disagree and development is malleable and
differs among individuals, most children can walk
before they can comfortably stand, as the momentum is
easier to maintain than the stasis (as in riding a bike). In
the walking or running position, the body is supported
primarily on one foot, with a part of the other - the heel
or the ball of the foot - providing some balance as the
child moves.
True standing - and an approach to the balance of the
lines approaching Figure 10.1 - requires all this develop-
mental movement, which has strengthened and aligned
bones, developed joints, and brought fascial strength as
well as muscular strength and coordination to these lon-
gitudinal lines of stability and support, all in the service
of easy, balanced standing and marvelously efficient
walking (Fig. 10.34).
All human activities rest in the cradle of this basic
sequencing of perception and movement that leads the
baby from a passive lying on the back to active partici-
pation in the world. Since you cannot talk a baby in and
out of clothes, car seats, etc. during that first year, a great
deal of what is communicated to the baby during this
sequence is conveyed kinesthetically. This suggests that
anyone who interacts with babies should be learning
basic handling skills that could do a lot for alleviating
movement problems in later life.
All parents and all therapists would benefit from
being familiar with both this sequence, and with under-
standing the consequences when this sequence is
interrupted or diverted. Children and this process are
resilient, so even badly handled children arrive at stand-
ing and walking, but missing pieces can nevertheless
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