Institution
University of Saskatchewan
Education•Saskatoon, Saskatchewan, Canada•
About: University of Saskatchewan is a education organization based out in Saskatoon, Saskatchewan, Canada. It is known for research contribution in the topics: Population & Health care. The organization has 25021 authors who have published 52579 publications receiving 1483049 citations. The organization is also known as: USask.
Papers published on a yearly basis
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TL;DR: An understanding of the factors that influence physical activity behavior in older adults is critical to developing effective intervention strategies that will address the problem of physical inactivity in this population, and in doing so improve the health status and quality of life of the older adult, while having a significant impact on healthcare expenditures.
Abstract: Purpose: To examine relationships between selected sociodemographic, health-related and environmental factors and levels of physical activity in older adults across three age groups.
Methods: Seven hundred sixty-four older adults (mean age = 77.4 +/- 8.6 yr) from a midsize Canadian city completed a self-administered questionnaire under researcher supervision. Level of physical activity was determined using the Physical Activity Scale for the Elderly (PASE). Correlates of physical activity were examined using previously validated questionnaires. The findings pertaining to personal and environmental factors are presented.
Results: Overall, significantly higher mean PASE scores were seen in those individuals in the following categories: male (P < 0.001), married or common-law (P < 0.001), not living alone (P < 0.001), not living in senior's housing (P < 0.001), higher levels of education (P < 0.001) and higher incomes (P < 0.001). Better physical health showed significant positive associations (P < 0.001) with PASE score. Individuals reporting at least four or more chronic health conditions had significantly lower PASE scores than those reporting no chronic conditions (P < 0.001). Significantly lower PASE scores were also reported in those using domestic services (P < 0.001). Higher PASE scores were related to the presence of hills, biking and walking trails, street lights, various recreation facilities, seeing others active and unattended dogs (P < 0.001 to P < 0.05).
Conclusion: An understanding of the factors that influence physical activity behavior in older adults is critical to developing effective intervention strategies that will address the problem of physical inactivity in this population, and in doing so, improve the health status and quality of life of the older adult, while having a significant impact on healthcare expenditures
231 citations
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TL;DR: The “Chimpanzee Stone Age” pre-dates the advent of settled farming villages in this part of the African rainforest and suggests that percussive material culture could have been inherited from an common human–chimpanzees clade, rather than invented by hominins.
Abstract: Archaeological research in the African rainforest reveals unexpected results in the search for the origins of hominoid technology. The ancient Panin sites from Cote d'Ivoire constitute the only evidence of prehistoric ape behavior known to date anywhere in the world. Recent archaeological work has yielded behaviorally modified stones, dated by chronometric means to 4,300 years of age, lodging starch residue suggestive of prehistoric dietary practices by ancient chimpanzees. The “Chimpanzee Stone Age” pre-dates the advent of settled farming villages in this part of the African rainforest and suggests that percussive material culture could have been inherited from an common human–chimpanzee clade, rather than invented by hominins, or have arisen by imitation, or resulted from independent technological convergence.
231 citations
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TL;DR: It is concluded that, under the conditions imposed, feeding additional concentrate prepartum does not reduce postpartum RA, and the incidence and severity of RA increases immediately post partum, emphasizing the need to develop and implement feeding strategies that reduce this risk.
231 citations
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TL;DR: It is shown that training of a reaching task promotes recovery of the trained task following partial SCI by enhancing plasticity at various levels of the central nervous system (CNS), but may come at the cost of an untrained task.
Abstract: In the current study we examined the effects of training in adult rats with a cervical spinal cord injury (SCI). One group of rats received 6 weeks of training in a single pellet reaching task immediately after injury, while a second group did not receive training. Following this period changes in cortical levels of BDNF and GAP-43 were analysed in trained and untrained animals and in a group with training but no injury. In another group of rats, functional recovery was analysed in the reaching task and when walking on a horizontal ladder. Thereupon, the cortical forelimb area was electrophysiologically examined using micro-stimulation followed by tracing of the lesioned corticospinal tract (CST). We found that trained rats improved substantially in the reaching task, when compared to their untrained counterparts. Trained rats however, performed significantly worse with their injured forelimb when walking on a horizontal ladder. In parallel to the improved recovery in the trained task, we found that the cortical area where wrist movements could be evoked by micro-stimulation expanded in trained rats in comparison to both untrained and uninjured rats. Furthermore, collateral sprouting of lesioned CST fibres rostral to the injury was increased in trained rats. Post-injury training was also found to increase cortical levels of GAP-43 but not BDNF. In conclusion we show that training of a reaching task promotes recovery of the trained task following partial SCI by enhancing plasticity at various levels of the central nervous system (CNS), but may come at the cost of an untrained task.
231 citations
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TL;DR: Overall, the observation indicates that both TDCPP and TPP could disturb the sex hormone balance by altering regulatory mechanisms of the HPG axis, eventually leading to disruption of reproductive performance in fish.
231 citations
Authors
Showing all 25277 results
Name | H-index | Papers | Citations |
---|---|---|---|
Tomas Hökfelt | 158 | 1033 | 95979 |
Frederick Wolfe | 119 | 417 | 101272 |
Christopher G. Goetz | 116 | 651 | 59510 |
John P. Giesy | 114 | 1162 | 62790 |
Helmut Kettenmann | 104 | 380 | 40211 |
Paul M. O'Byrne | 104 | 605 | 56520 |
Susan S. Taylor | 104 | 518 | 42108 |
Keith A. Hobson | 103 | 653 | 41300 |
Mark S. Tremblay | 100 | 541 | 43843 |
James F. Fries | 100 | 369 | 83589 |
Gordon McKay | 97 | 661 | 61390 |
Jonathan D. Adachi | 96 | 589 | 31641 |
Wenjun Zhang | 96 | 976 | 38530 |
William C. Dement | 96 | 340 | 43014 |
Chris Ryan | 95 | 971 | 34388 |