POSTURE Dr. Quazi Huma MPT Neurosciences Asst Professor Objectives Definition Human posture – quadruped to bipedal Postural Control Analysis of all views Physiological Deviations Factors affecting posture Definition Good posture is the attitude which, is assumed by body parts to maintain stability and balance with minimum effort and least strain during supportive and non supportive positions. CHARACTERISTICS OF GOOD POSTURE (Prerequisites of good posture) For good posture to be maintained the following must be obtained: The ability to maintain 'the body upright in good and erect position with less energy. The ability to maintain balance in upright position via keeping the line of gravity near the center of the base of support. Quadruped Vs Bipedal Quadruped posture Body weight is distributed between the upper and lower extremities Good stability Bipedal posture Unique found in human Small BOS Use of upper extremities Instability caused by a small BoS and a high CoM BASE OF SUPPORT BOS is defined by an area bounded posteriorly by the tips of the heels and anteriorly by a line joining the tips of the toes CENTER OF MASS It is the point where the mass of the body is centered Position of the CoM is not fixed CoM moves lower to a location in the standing adult at about the level of the second sacral segment in the midsagittal plane. POSTURAL CONTROL refers to a person’s ability to maintain stability of the body and body segments in response to forces that threaten to disturb the body’s equilibrium POSTURAL CONTROL STATIC POSTUREThe body and its segments are aligned and maintained in certain position DYNAMIC POSTUREPostures in which the body or its segments are moving PLUMB LINE ANALYSIS OF POSTURE IN SAGITTAL VIEW DEVIATION IN SAGITTAL VIEW FLEXED KNEE POSTURE GENU RECURVATUM KYPHOTIC AND LORDOTIC CURVES DOWAGERS HUMP AND GIBBUS DEFORMITY ANALYSIS OF POSTURE IN FRONTAL VIEW A. NORMAL FOOT B. PES PLANUS C. PES CAVUS ANALYSIS OF POSTURE IN CORONAL VIEW FACTORS AFFECTING POSTURE THANK YOU!!!! Pamela K. Levangie, Cynthia C. Norkin; Joint Structure and Function: A Comprehensive Analysis 4th Edition.

1. POSTURE
Dr. Quazi Huma
MPT Neurosciences
Asst Professor

2. Objectives
◦ Definition
◦ Human posture – quadruped to bipedal
◦ Postural Control
◦ Analysis of all views
◦ Physiological Deviations
◦ Factors affecting posture

3. Definition
◦ Good posture is the attitude which, is assumed by body parts to
maintain stability and balance with minimum effort and least strain
during supportive and non supportive positions.

4. CHARACTERISTICS OF GOOD POSTURE
(Prerequisites of good posture)
◦ For good posture to be maintained the following must be obtained:
◦ The ability to maintain 'the body upright in good and erect position with less
energy.
◦ The ability to maintain balance in upright position via keeping the line of
gravity near the center of the base of support.

5. Quadruped Vs Bipedal
Quadruped posture
◦ Body weight is distributed between the
upper and lower extremities
◦ Good stability
Bipedal posture
◦ Unique found in human
◦ Small BOS
◦ Use of upper extremities
◦ Instability caused by a small BoS and a high
CoM

6. BASE OF
SUPPORT
BOS is defined by an
area bounded posteriorly
by the tips of the heels
and anteriorly by a line
joining the tips of the
toes

7. CENTER OF
MASS
• It is the point where the
mass of the body is
centered
• Position of the CoM is
not fixed
• CoM moves lower to a
location in the standing
adult at about the level
of the second sacral
segment in the
midsagittal plane.

8. POSTURAL CONTROL
◦ refers to a person’s ability to maintain stability of the body and body segments in
response to forces that threaten to disturb the body’s equilibrium

9. POSTURAL CONTROL
CNS
VESTIBU
LAR
VISUAL
MUSCULOS
KELETAL

10. STATIC POSTURE
The body and its segments are aligned and maintained in certain position
KNEELIN
G
LYING
SITTING
STANDIN
G

11. DYNAMIC POSTURE
Postures in which the body or its segments are moving

12. PLUMB LINE
• Plumb line is a line with a weight on one end, dropped from the
ceiling and passing through the external auditory meatus of the ear
may be used to represent the LoG.
• Evaluators of posture should be able to determine whether a body
segment or joint deviates widely from the normal optimal postural
alignment by using their observational skills

14. ANALYSIS OF POSTURE IN SAGITTAL
VIEW

15. DEVIATION IN SAGITTAL VIEW
 Claw toes: hyperextension of the metatarsophalangeal
(MTP) joint, combined with flexion of the PIP and
DIP
 Hammer toes: hyperextension of the MTP joint,
flexion of the PIP joint, and hyperextension of the
DIP joint

16. FLEXED KNEE POSTURE GENU RECURVATUM

17. KYPHOTIC AND LORDOTIC CURVES
DOWAGERS HUMP AND GIBBUS
DEFORMITY

19. ANALYSIS OF POSTURE IN FRONTAL
VIEW
 PES PLANUS
 PES CAVUS
 GENU VARUM
 GENU VALGUM

20. A. NORMAL FOOT B. PES PLANUS C. PES CAVUS

21. ANALYSIS OF POSTURE IN CORONAL
VIEW

23. A. GENU VALGUM B. GENU VARUM

24. FACTORS AFFECTING POSTURE
POSTURE
PREGNANCY
AGE
OCCUPATION

25. ?????????

26. THANK YOU!!!!

27. Pamela K. Levangie, Cynthia C. Norkin; Joint Structure
and Function: A Comprehensive Analysis 4th Edition.
REFERENCES