Biomechanics Flashcards Preview

PCM Exam 1 > Biomechanics > Flashcards

Flashcards in Biomechanics Deck (14):
1

The moment

A force applied plus the moment arm

2

Moment arm:

The distance from center of a joint to the muscle attachment site. Moment arm = force x distance

3

joint reaction force:

Summation of the separate moments and force affecting a contracting muscle

4

Slower stretch

Less resistance. Associated with creep. The slower, longer the squeeze, the more complete expression of fluid from within muscle matrix.

5

Internal and external forces can:

Fracture bones, dislocate joints, disrupt muscle and connective tissue

6

Consistent repetitive stress can cause an alteration to the structure in the form of:

Structural failure, deformation, adaptation

7

What behavior can create as many problems in a structure as the original insult?

Guarding

8

Always check a joint ___ and ____ when assessing viscerosomatic dysfunction

Above and below

9

biotribology is what

study of biological systems, human joints

10

Wolff's law is:

Notion that bone is increased where needed and reabsorbed where it is not

11

Hypertrophy of skeletal muscle is due to:

increased cross section of muscle fibers due to physical training.

12

Atrophy of skeletal muscle occurs due to:

Disuse or functional alteration of nerve stimulus to the msucle

13

Progression of OSE

Gait and posture, A/P Spinal Curvature (scoliosis), TART findings, Inspection (?), Percussion, Papation

14

Always assess:

ROM, pain, stability, muscle strength/tone, note any atrophy and abnormal movements