Body Mechanics- Basic Terms

Question 1

BOS

Answer 1

Area which an object rests and provides support for object.

Question 2

Isometric

Answer 2

Maintaining same length

Question 3

Kyphosis

Answer 3

Abnormally increased convexity of curvature of thoracic spine seen from side

Question 4

Lever arm

Answer 4

-mechanical component
-best mechanical lever system= length of force arm is increased and length of weight arm is decreased

Question 5

Lordosis

Answer 5

Increased forward convexity in lumbar and cervical spine

Question 6

Recumbent

Answer 6

Lying down

Question 7

Squat

Answer 7

To sit on heels and knees fully bent

Question 8

Torque

Answer 8

FxD
-effectiveness of a force in a turning lever system

Question 9

Lower torque=

Answer 9

Less energy used= less strain on body= shorter arms

Question 10

Higher torque

Answer 10

More energy= more strain on body= object away from body

Question 11

Vassalva phenomenon

Answer 11

Increased intrthoracic pressure caused by forced exhalation against closed glottis
- decreases return on venous blood to right side of heart and increases peripheral bp

Question 12

Valsalva phenomenon results in?

Answer 12

CVA or cerebral vessel rupture

Question 13

High COG

Answer 13

Less stable

Question 14

To increase stability

Answer 14

-increase BOS
-lower COG
-maintain VGL
-position feet in direction of movement

Question 15

Foot positions to increase stability

Answer 15

-anterior posterior stance
-medial lateral stance