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841.
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Norman R. Beaupre Ph.D. Robert E. Haskell Ph.D. Spencer Lavan Ph.D. Sandra L. Bertman Leonard M. Fleck Ph.D. Lois LaCivita Nixon Ph.D. M.P.H. Willard P. Green Ph.D. Rosa Lynn Pinkus Ph.D. Joel Frader M.D. Marilynn Rosenthal Ph.D T. Forcht Dagi M.D. Daniel M. Fox Ph.D. Erwin A. Blackstone Norman Gevitz Ph.D. William B. Bondeson Ph.D. 《The Journal of medical humanities》1988,9(1):60-94
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This paper reports a prospective study which applied the Theory of Planned Behaviour (TPB) to the prediction of exercise behaviour over a six-month period. The study addressed a number of issues which have been identified in the literature on the TPB; these being the role of prior behaviour in the TPB, the distinction between desires and self-predictions, and the question of attitude variability. The findings showed prior behaviour to be the strongest predictor of exercise behaviour at six months. Contrary to expectations, the self-prediction measure was not found to be a better predictor of behaviour than the desire measure. Attitude variability was found to be related to perceptions of control. However, attitude variability was not found to moderate relationships between components of the TPB. The implications of the results for the development of the TPB are discussed. 相似文献
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Dehydroepiandrosterone (DHEA) is quantitatively the most abundant hormone in humans and mammals, with a wide variety of physiological
effects, including major regulatory effects upon the immune system. Two of the most striking aspects of DHEA are a steady
decline in DHEA with age and a significant deficiency in DHEA in patients with several major diseases, including cancer, atherosclerosis,
and Alzheimer’s disease.
The hormone is secreted in a non-sulfated (DHEA) and sulfated form (DHEA-S). The two are apparently interchangeable, and it
appears likely that its physiological effects are achieved by derivative molecules that have yet to be identified. 相似文献
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