Date of Award
Fall 2000
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Mechanical and Industrial Engineering
First Advisor
Marklin, Richard
Second Advisor
Ropella, Kristina
Third Advisor
Simoneau, Guy
Abstract
Ergonomic design of hand tools has become an increasingly important factor in both commercial and consumer product markets. Tools such as screw drivers, hammers and other common tools have been studied with respect to ergonomics, however, there is very little information on lopper design and its effects on the muscles of the shoulder. This thesis seeks to determine the effects of lopper damping systems on the muscular effort requirements while cutting tree branches. The study of loppers and other similar cutting tools has become important as the age of Americans increases and older individuals are more active. The effect of age on the musculoskeletal system increases the risk of injuries. There is currently no information on the effects of damping systems on the upper extremities, specifically the shoulder complex. The research conducted in this thesis will address this current research void and create a range of muscular effort requirements for horizontal lopping for the pectoralis major, upper trapezius, middle deltoid, and latissimus dorsi. This information will help designers understand the requirements of horizontal lopping.
Recommended Citation
Schermerhorn, Eric J., "Ergonomic Evaluation of Lopper Damping System Using Electromyography (EMG) and Strain Gage" (2000). Master's Theses (1922-2009) Access restricted to Marquette Campus. 4039.
https://epublications.marquette.edu/theses/4039