fundamental and derived positions
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Fundamental and Derived Positions. Fundamental and Derived Positions. 5 fundamental positions usually described along with their derivatives starting positions from which exercises start or in which they may be given. Lying (Ly) or Supine (Sup.). - PowerPoint PPT PresentationTRANSCRIPT
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5 fundamental positions ◦ usually described along with their derivatives
starting positions from which exercises start or in which they may be given
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The body is supine with the arms by the sides and legs straight.
◦ This is the position in which the body is most supported with a large base and low centre of gravity.
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Body is erect, arms by the sides, thighs are fully supported and together. Right angles are maintained at the hips, knees and ankles.
◦ The centre of gravity is low but near to the rear edge of the base
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Body is upright from the knees which are held at a right angle. Arms are by the sides.
◦ The base consists only of the legs and the centre of gravity is high and the line of gravity falls close to the edge of the base unstable and difficult to maintain.
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Body is erect with arms by the sides. The feet are slightly apart at the toes.
◦ The base is small and the centre of gravity is high.
◦ Easier to maintain than kneeling.
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Body hangs from a beam or overhead support. Arms are wide apart
◦ Used only for very strong people
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obtained from the fundamental positions by changing the position of the arms, legs, and trunk in each of the fundamental position
The purposes of derived positions :◦ Increase or decrease the size and stability of BOS.◦ Raise or lower the COG.◦ Ensure general or local relaxation.◦ Alter the position of the body in relation to gravity.
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The purposes of derived positions :◦ Provide control or fixation for a particular part of
the body, so that movement may be localized to a specific area.
◦ Increase or decrease the muscle work required to maintain the position.
◦ Increase or decrease the leverage.◦ Provide a convenient position from which a
particular exercise is to be performed.
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Side Lying (S. Ly.) ◦ Turning onto the side with the under arm by the
side and legs straight
Rarely used
The base is small and rounded
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Prone Lying (Pr. Ly.) or Prone (Pr.) ◦ Body is face down with arms by the side and legs
straight.
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Across Prone Lying (Acr. Pr. Ly.) ◦ Lying across a support with the anterior superior
iliac spines just off the front edge of the support◦ The head and hands may rest on the floor◦ The feet should be held by a partner or support
from a wall bar.
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Quarter Turn (1/4 Tn.) ◦ Body is turned through 45° from either Lying,
Side Lying or Prone Lying and supported by pillows down the raised side of the trunk.
◦ The direction of the 1/4 turn is indicated by stating the starting position and direction, e.g. 1/4 Tn.L. from Ly.
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Half Lying (1/2 Ly.) ◦ Body is bent at the hips and the trunk is raised
from lying to any angle up to 90°. ◦ More comfortably the legs may be slightly raised
or lowered from the horizontal and the knees bent.
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Side Half Lying (S. 1/2 Ly.)
◦ The trunk and head are turned to one side so that the patient rests on one buttock and leg and that side of the trunk
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Forward Lean Sitting (Fwd. Ln. Sitt.)
◦ The trunk is inclined forwards and the head is supported on pillows on a table at the front.
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Half Sitting (1/2 Silt.) ◦ Sitting on the side of a seat so that only one
buttock is supported. ◦ The leg on the side of the unsupported buttock is
usually bent at the knee
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Long Sitting (Long Sitt.) ◦ The legs are stretched out in front, knees straight.
The trunk is upright and position is an uncomfortable one to maintain.
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Kneel Sitting (Kn. Sitt.) ◦ From kneeling to sitting back on the heels.◦ A stable position and much used for retraining
balance and by children at play.
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Side Sitting (Side Sitt.) ◦ From kneel sitting the buttocks are moved
sideways so that one or both buttocks rest on the floor beside the feet
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Half Kneeling (1/2 Kn.) ◦ From kneeling, one leg is taken forward to be
bent at right angles at the hip, knee and ankle.◦ A stage in rising from kneeling to standing or
transferring from floor to stool.
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Prone Kneeling (Pr. Kn.) ◦ Kneeling supported by all four limbs. ◦ The arms should be straight and the hands in line
below the shoulders. ◦ Right angles should be maintained at the hip and
knee and the ankles may be plantarflexed or dorsiflexed
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Inclined prone kneeling: ◦ the same as prone kneeling, but there is more
that 90 degrees flexion of both elbows, shoulders are flexed and abducted, the head rested on the hands or on the plinth.
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High Standing (High St.) ◦ Standing on a platform or stool of any height.◦ Normally used when one leg is to be moved and
allows the patient to be more accessible to the therapist.
◦ The position is usually stabilized by allowing the patient to grasp a support.
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Step Standing (Step. St.) ◦ Standing with one foot on a higher level than the
other. ◦ Used for teaching weight transference before
walking upstairs
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Half Standing (1/2 St.) ◦ Standing on one leg
one hip is hitched up or one leg is bent at the hip and knee.
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Close Standing (Cl. St.)
◦ The feet are together and parallel.◦ Harder to maintain than standing
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Toe Standing (T. St.)
◦ The body is raised onto the toes. ◦ The smallest possible base is now in use.
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Arch Hanging (Arch Hang.) ◦ The starting position for forward and backward
swinging of the trunk or for bar somersaults.
Half Hanging (1/2 Hang.) Hanging by one arm. The position achieved during
lateral travel on the beam.
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Half (1/2) ◦ One arm.
Stretch (Str.) ◦ The arms are held straight above the
head in the position of elevation at the shoulder, i.e. palms facing inwards.
Yard (Yd.) ◦ The arms are held straight out from
the side of the body, palms facing downwards
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Reach (Rch.) ◦ The arms are held straight in front of the
body palms facing inwards Head Rest (H. Rst.)
◦ The hands rest on the head, more usually on the occiput, and the position is usually used to gain upper trunk extension
Bend (Bd.) ◦ The elbow is bent and the hands lie
adjacent to the shoulders. A starting position usually used for thrusts upwards, forwards, downwards and backwards.
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Wing (Wg.) ◦ The hands rest on the hips. ◦ used in rotatory movements of the trunk
Heave (Hve.) ◦ Usually used with a grasp. The arms lie abducted
at the shoulder, the elbows bent upwards at a right angle so that a grasp may be taken of the edges of the bed or plinth.
◦ Used to fix the upper half of the body
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Grasp (Gr.) ◦ The hands grasp a convenient support. May be
used with Stretch, Yard, Reach or Heave
Low Grasp (Low Gr.) ◦ The hands grasp when they are by the sides.
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Forehead Support (F. head Supp.) ◦ The forehead rests on the hands placed
either palm down or with loosely grasping thumb and forefinger
Arm Lean (A. Ln.) ◦ The forearms and the hands palms down
are placed on a support in front of the body, the head may rest on them or they may rest on and be covered by a pillow on which the head rests. Used in Forward Lean positions
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Forward Propping (Fwd. Prop.) ◦ The hands rest flat on the seat and in front of
the trunk. Backward Propping (Bwd. Prop.)
◦ The hands rest flat On the seat fingers pointing backwards and behind the trunk
Reverse Propping (Rev. Prop.) ◦ The hands rest as above but the fingers point
forwards.
All three propping positions are used for thrusting actions in which the arm is braced in extension and the trunk may be balanced and/or moved on the arm/s.
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Stride (Std.) ◦ The feet are a sideways pace apart and the base
is therefore wide from side to side giving good lateral stability.
Walk (Wk.) ◦ The feet are a forward pace apart and the base
wide from front to back giving good anteroposterior stability.
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Oblique Stride (Obl. Std.) ◦ The feet are a pace apart part way between walk and
stride. This position allows oblique transfer of weight. Lunge (Lge.)
◦ The feet are well apart and at right angles to each other. ◦ If the rear leg is bent then the weight is in a back lunge
position. ◦ If the front leg is bent the weight is in a forward lunge
position. ◦ This position allows transfer of body weigh. from one leg
to the other, with maximum stability for working in this position.
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Step ◦ One foot is supported on a stool of any height.
The weight may be on either the rear or the stepping foot.
Crook (Ck.) ◦ The knees and hips may be bent slightly by using
one pillow under the knees or, in the extremely flexed position, the soles of the feet will be flat on the support
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Cross Leg (X Leg) ◦ The legs are crossed at the ankles.The knees are
flexed and the hips flexed, abducted and laterally rotated.
◦ This position is taken up on the floor or on a high mat.
Cross Ankle (X Ankle) ◦ The legs may be crossed at the ankles when the
body is in the Lying, Sitting,Kneeling or Standing positions.
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Stoop (Stp.) ◦ The body is bent forwards at the hips with erect
back and head. Relaxed or Slack Stoop (Lax Stp.)
◦ The head and trunk are flexed. Arch
◦ The head and trunk are extended.
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Turn (Tn.) ◦ The trunk is rotated through any degree less than
90° either by moving the shoulder girdle or the pelvis or both depending on the fundamental position
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First consider which parts of the body are not in the normal relationships as in the fundamental position.
Then name their position in the following order—Head, Arm, Trunk, Leg and fundamental position◦ Head Support Arm Lean Forward Stride Sitting;◦ 1/2 Low Grasp 1/2 High Standing.
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Flexion (Flex.) ◦ An angular movement. A forward movement in which
joints are bent. Usually the approximation of two ventral surfaces. Takes place about a transverse axis and in the median or sagittal plane.
Extension (Ext.) ◦ An angular movement. A backward movement in
which joints are straightened. The opposite of flexion with the same axis and plane.
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Abduction (Abd.) ◦ An angular movement. Movement away from the mid-line of
the body, occurs round an anteroposterior, i.e. sagittal axis and in the coronal or frontal plane. The exceptions are the shoulder joint and the carpometacarpal joint of the thumb.
Adduction (Add.) ◦ An angular movement, the opposite of the above.
Movements towards the midline of the body. Circumduction O
◦ A combination of the four angular movements so that each position is adopted in turn and in sequence. The moving bone/s circumscribe a conical space.
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Rotation (Rot.) ◦ A turning movement, about a vertical axis and in a
horizontal plane, of limbs, head or trunk in which case the direction in which the anterior surface is turning is first indicated.
Medial Rotation (M. Rot.) ◦ Occurs around a vertical axis. The anterior aspect
of the limb turns towards the mid-line. Lateral Rotation (L. Rot.)
◦ The opposite of the above, though the axis is the same.
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Side Flexion (S. Flex.) ◦ An angular movement. Movements of the head or
trunk away from the mid-line in a lateral direction. Inversion (Inv.)
◦ Applies to the foot and is a movement of adduction and inward rotation of the forefoot of which the sole faces inwards.
Eversion (Ev.) ◦ Applies to the foot and is the opposite of the above.
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Supination (Sup.) ◦ Applies to the forearm. The palm of the hand is
turned forwards so that the thumb is lying laterally.
Pronation (Pron.) ◦ The opposite of the above.
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Line of Gravity Centre of Gravity Base of Support
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Line of Gravity◦ Is the imaginary vertical
line that extended from the COG to the ground. It has a inverse relationship with the stability. The longer the LOG of a position, the lesser the stability of that position.
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Centre of Gravity◦ The point through which the LOG would pass with
the body orientated in any direction is called the centre of gravity
◦ This lies at approximately the level of the second sacral vertebra.
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Base of Support◦ The base of support (BOS) refers to the
supporting area beneath a body. ◦ It includes both the parts of the body in direct
contact with the surface and the area enclosed by the contact points.
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