Week 3 part 2

Question 1

open chain - percussive or sustained action. (striking or stroking)

Answer 1

non-gripping action

Question 2

open chain on verge of closing - hook grip, scooping, and cupping.

Answer 2

transitional forms

Question 3

thumb wraps around back of fingers to provide additional force

Answer 3

crude power grip/sledgehammer

Question 4

if more control is needed (with less force) to grip, where does the thumb move?

Answer 4

thumb moves along shaft of tool handle

Question 5

*what should the diameter of the handle of single handle tools for POWER TASKS be? and what can be used to increase the diameter and provide comfort?

Answer 5

1 1/4 - 2 inches, a sleeve

Question 6

pressure from a hard surface, point, or edge on any part of the body

Answer 6

contact pressure

Question 7

what are contact pressures made worse from?

Answer 7

repetitive tasks

Question 8

what should the diameter of the handle of single handle tools for PRECISION TASKS be?

Answer 8

handle diameter 1/4 - 1/2 an inch

Question 9

what should the maximum open span be for double handle tools for PRECISION TASKS?

Answer 9

no more than 3 inches

Question 10

what should the minimum closed grip span be for double handle tools for PRECISION TASKS?

Answer 10

not less than 1 inch

Question 11

placement of work piece will affect posture in which 5 body parts?

Answer 11

• shoulder
• elbow
• wrist
• hand
• back

Question 12

awkward postures may cause you to use more ___.

Answer 12

force

Question 13

the right tool will not cause __ and __.

Answer 13

pain, fatigue

Question 14

what should the maximum open grip span be for double handle tools for POWER TASKS?

Answer 14

no more than 3.5 inches

Question 15

what should the minimum closed grip span be for double handle tools for POWER TASKS?

Answer 15

no less than 2 inches

Question 16

what should the handle legnth be for tools for high force tasks?

Answer 16

longer than the widest part of your hand - usually 4-6 inches

Question 17

name 6 OT treatments for hand tool injuries.

Answer 17

• modalities as indicated
• splinting
• therex/stretching as indicated
• nerve glides
• k tape during work
• ergonomic education

Question 18

teach patient about natural alignment and maintaining non awkward body postures during work, hand position with tool use

Answer 18

ergonomic education

Question 19

vibration transmitted to hand and arm from power tools

Answer 19

hand arm vibration syndrome

Question 20

• disc presses on nerves

- may or may not cause pain

Answer 20

herniated/bulging disc

Question 21

*name the 2 most common sites of disc herniation.

Answer 21

• L4-L5

- L5-S1

Question 22

wear and tear on discs btwn vertebrae

Answer 22

degenerative disc disease

Question 23

when does disc disease become degenerative?

Answer 23

over 3 months

Question 24

• pain, weakness, numbness, and other discomfort along the path of the sciatic nerve
• low back pain
• symptom of a problem at some point along the sciatic nerve rather than an ailment in and of itself.
• causes include herniated disc, spinal stenosis, and others.
• often develops over time from low back injuries and wear and tear

Answer 24

sciatica

Question 25

• common name for neck sprains
• neck or back is thrown forwards and/or backwards at a rapid speed
• may cause the fibers of the neck muscles to tear, resulting in pain and often a decreased range of movement.

Answer 25

whiplash

Question 26

name 3 lifting recommendations/guidelines.

Answer 26

• two-handed lifting
• comfortable lifting postures
• comfortable environments and non-slip floorings

Question 27

what is the calculation called for lifting?

Answer 27

revised lifting calculation

Question 28

when the multiplier factors are all in the best range the weight limit for lifting or lowering is about how many pounds?

Answer 28

51 pounds

Question 29

when the multiplier factors are not in the best ranges, what must happen?

Answer 29

the weight limit must be reduced accordingly

Question 30

the distance from the starting point of the lift (height hands from ground)

Answer 30

vertical multiplier

Question 31

the number of centimeters the load travels up (or down) from the starting position

Answer 31

distance multiplier

Question 32

how often the lift is repeated within a certain time period. you need to determine if the lift is done - while standing or stooping, for more or less than one hour (in total time for the shift), and how much time there is for rest btwn lifts

Answer 32

frequency multiplier

Question 33

if the body twists or turns during the lift, measured in degrees (with 360 being one complete circle)

Answer 33

asymmetric multiplier

Question 34

determines the “coupling” or type of grasp the person has on the container. it rates the type of handles as good, fair, or poor.

Answer 34

coupling multiplier