[Back to Index] [Back to Personal]  [Back to Homepage]

Roof Bolter Study Conclusions

• Through the range of motion of the bolting maneuver, the forces vary from 30 to 50% higher stress on the shoulder joint.

• Forces are up to 68 lb. of force on the shoulder, arm extended, vs. 44 lb. for arm close to body.

• If roof bolting maneuver can be modified, shoulder stress reduction will be 30 to 50%.

Previous slide

Next slide

Back to first slide

View graphic version

[Back to Personal]  [Back to Homepage]