Margaret N Friesen

Learn More
There is evidence that performing job tasks involving repetition, vibration, sustained posture or forceful movement may contribute to symptoms of work related upper extremity disorders. Typing is one such activity; symptoms that develop as a result of this activity can affect performance of work, self-care and leisure occupations. Studies investigating the(More)
Platelet function studies were performed on 18 patients with end stage chronic renal failure receiving treatment by long-term peritoneal dialysis. The results of these studies were compared with previously reported data on healthy volunteers, non-dialyzed patients with chronic renal failure and patients treated by hemodialysis. Platelet adhesiveness was(More)
The purpose of this study was to compare the epidemiology of musculoskeletal injuries and workplace ergonomics among rural-based sonographers compared to urban-based sonographers. The authors also tested the use of a biomechanical software program to assess load on the spine and upper extremity joints. A mail-in survey was sent to all practicing(More)
OBJECTIVES The purpose of this article is to share the details, outcomes and deliverables from an international workshop on work transitions in London, Ontario, Canada. PARTICIPANTS Researchers, graduate students, and community group members met to identity ways to advance the knowledge base of strategies to enhance work participation for those in the(More)
These studies clearly indicate that heparin has 2 antagonistic effects in this platelet-foreign surface interaction; it acts directly on platelets to increase retention, while acting on the foreign surface to reduce platelet retention, perhaps by competing for cationic sites. This study also suggests that it is unlikely that heparin bonding confers reduced(More)
Introduction Social support in the workplace has been has been demonstrated to serve as a contributor to a worker’s ability to manage work demands and to manage stress. Research in the area of disability management indicates that interpersonal factors play an important role in the success of return-to-work interventions. The role of workplace support has(More)
To return to farming following the onset of a disabling injury or health condition is predicated on a supportive environment for the farm owner-operator. The purpose of this study was to examine barriers and facilitators of returning to work after an injury or acquired disability, and to identify community supports (formal and informal) needed and available(More)
BACKGROUND Farmers who live with a disability face multiple challenges that impact their ability to continue farming. The purpose of this article was to review the literature concerning the impact of a disability on farmers' work and life. METHOD Six electronic databases were searched for articles published in English, from 1992 to 2009. RESULTS Farmers(More)