The scientific data management CORE has 2 major responsibilities. First, the CORE will recruit, characterize, perform baseline evaluations and be responsible for the interventions common to the individual projects. This includes endurance exercise training (conditioning and deconditioning) and nutrition/weight loss. Second, the CORE poses scientific questions that can be divided into three areas: cross sectional studies, studies pre and post exercise (and diet) interventions and long-term follow up of current TNH subjects. The CORE will characterize the study populations in terms of their exercise capacity and its relationship to age, body composition, level of physical activity as well as motivational and hereditary factors. It will study the ability or inability of middle aged to elderly individuals to train and improve their VO2 max. While VO2 max decreases with aging we hypothesize that older individuals are able to increase VO2 max in response to vigorous endurance training and that inability to alter VO2 max is related to other factors such that as obesity, cardiovascular function and motivation. The CORE will investigate the effects of combined diet and exercise interventions in a group of middle aged to elderly men to determine the interaction between age, body composition and the ability to effectively train and increase VO2 max. It will study the effects of changes in physical activity (exercise for sedentary, rest for the highly conditioned), body weight (hypocaloric feeding) and age (time control) on measures of body composition and their relationship to physiologic and metabolic parameters. Finally, the CORE will study the physiologic and metabolic effects of long term interventions (exercise and diet training) lasting from two to eight years in Sedentary overweight middle aged to elderly men.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Program Projects (P01)
Project #
5P01AG004402-08
Application #
3809085
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
8
Fiscal Year
1990
Total Cost
Indirect Cost
Name
Johns Hopkins University
Department
Type
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218
Vaitkevicius, Peter V; Ebersold, Caroline; Shah, Muhammad S et al. (2002) Effects of aerobic exercise training in community-based subjects aged 80 and older: a pilot study. J Am Geriatr Soc 50:2009-13
Punjabi, Naresh M; Sorkin, John D; Katzel, Leslie I et al. (2002) Sleep-disordered breathing and insulin resistance in middle-aged and overweight men. Am J Respir Crit Care Med 165:677-82
Ferrara, C M; Goldberg, A P (2001) Limited value of the homeostasis model assessment to predict insulin resistance in older men with impaired glucose tolerance. Diabetes Care 24:245-9
Katzel, L I; Sorkin, J D; Fleg, J L (2001) A comparison of longitudinal changes in aerobic fitness in older endurance athletes and sedentary men. J Am Geriatr Soc 49:1657-64
Womack, C J; Harris, D L; Katzel, L I et al. (2000) Weight loss, not aerobic exercise, improves pulmonary function in older obese men. J Gerontol A Biol Sci Med Sci 55:M453-7
Goldberg, A P; Busby-Whitehead, M J; Katzel, L I et al. (2000) Cardiovascular fitness, body composition, and lipoprotein lipid metabolism in older men. J Gerontol A Biol Sci Med Sci 55:M342-9
Katzel, L I; Sorkin, J D; Goldberg, A P (1999) Exercise-induced silent myocardial ischemia and future cardiac events in healthy, sedentary, middle-aged and older men. J Am Geriatr Soc 47:923-9
Berman, D M; Rogus, E M; Busby-Whitehead, M J et al. (1999) Predictors of adipose tissue lipoprotein lipase in middle-aged and older men: relationship to leptin and obesity, but not cardiovascular fitness. Metabolism 48:183-9
Hagberg, J M; Ferrell, R E; Katzel, L I et al. (1999) Apolipoprotein E genotype and exercise training-induced increases in plasma high-density lipoprotein (HDL)- and HDL2-cholesterol levels in overweight men. Metabolism 48:943-5
Bunyard, L B; Katzel, L I; Busby-Whitehead, M J et al. (1998) Energy requirements of middle-aged men are modifiable by physical activity. Am J Clin Nutr 68:1136-42

Showing the most recent 10 out of 77 publications