PubMed Health⌕ Search

Biomedical subjects

S J Morrissey

Publications and source records attributed to S J Morrissey.

6 recordsLinked to original sources
PubMed1985

Metabolic costs of stoopwalking and crawling.

This paper is a study of the metabolic costs of crawling and stoopwalking as performed by trained male and female subjects. After training, male and female subjects crawled and stoopwalked at a range of task speeds and in task postures set at 100, 90, 80, 70, and 60% of each subject's erect stature. It was found that as the task posture became more stooped, or the task speed increased, there were marked increases in metabolic cost. Further analysis found these increases to be due to the task speed within a posture rather than from the task posture. It was also found that in some task postures, the combination of speed and posture resulted in metabolic costs of performance which would be limiting in terms of non-fatigued task performance time.

Journal Article↗
PubMed1978

Isodecrement curves for task performance in hot environments.

This paper proposes a set of isodecrement curves for performance of perceptual motor tasks as a function of temperature and exposure time. Tasks studied include reaction time, mental tasks, vigilance, tracking, complex tasks, and combination of these tasks.

Journal Article↗
PubMedDate not supplied

Cross-sectional comparison of nerve conduction and vibration threshold testing: do screening tools for occupationally induced cumulative trauma disorders result in differing outcomes?

PURPOSE/METHOD: Early diagnosis of Carpal Tunnel Syndrome (CTS) is essential for its effective treatment and subsequent reduction or prevention of the personal and economic losses associated with it. This paper describes a comparison of vibration threshold testing (VTT) and nerve conduction testing (NCT) within the same subjects. RESULTS: Across age and diagnostic category there was little difference between VTT results and the NCT velocity measure in their ability to identify individuals with CTS. CONCLUSION: This is important because VTT is more easily administered and tolerated than NCT and can be used in general screening studies to identify potential CTS cases.

Adult↗