Physical Activity — Making Healthy Choices: Does Having an Online Health Coach Help?
Citation(s)
Booth M Assessment of physical activity: an international perspective. Res Q Exerc Sport. 2000 Jun;71(2 Suppl):S114-20.
Deci, E L., Ryan, R.M., Gagne, M., Leone, D.R., Usunov, J., & Kornazheva, B.P. (2001). Need satisfaction, motivation, and well-being in the work organizations of a former eastern bloc country: A cross-sectional study of self-determination. Journal of Personality and Social Psychology, 27(8), 930-942.
Trowbridge FL, Wong FL, Byers TE, Serdula MK Methodological issues in nutrition surveillance: the CDC experience. J Nutr. 1990 Nov;120 Suppl 11:1512-8. doi: 10.1093/jn/120.suppl_11.1512. Review.
Williams, G C., Deci, E. L., & Ryan, R. M. (1998). Building health-care partnerships by supporting autonomy: Promoting maintained behavior change and positive health outcomes. In A. L. Suchman, P. Hinton-Walker, & R. Botelho (Ed.), Partnerships in healthcare: Transforming relational process (pp. 67-87). Rochester, NY: University of Rochester Press.
Wilson, P M., Rogers, W. T., Rodgers, W. M., & Wild, T. C. (2006). Psychological need satisfaction in exercise scale. Journal of Sport & Exercise Psychology, 28, 231-251.
Helping Rural-living Young Adult Cancer Survivors Make Healthy Lifestyle Choices: Does Having a Telehealth Personal Health Coach Help?
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
