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Biomedical subjects

T T Baker

Publications and source records attributed to T T Baker.

2 recordsLinked to original sources

A multifactorial weight control program in a corporate setting.

Behavior modification, nutrition education, and exercise were the chief characteristics of an 8-week weight management program implemented in a corporate setting. Emphasis was placed on participants identifying needs and making their own behavior changes. Results indicated that this was a favorable approach. Male participants averaged a weight decrease of 12.4 lb (5.5 kg) and a decrease of 1.4% total body fat per person over an 8-week period. Female participants averaged a weight loss of 4.1 lb (1.9 kg) and a 3.9% decrease in total body fat per person. A survey completed by participants at the end of the 8-week period showed that they found behavior modification, nutrition education, and exercise all to be beneficial components of the weight management program and believed that the self-directed changes would be easy to continue. Regular aerobic exercise, recording food intake, and counting calories were rated by the participants as the three behavior practices most frequently used to aid in weight loss.

Adult

Alterations in lipid and protein profiles of plasma lipoproteins in middle-aged men consequent to an aerobic exercise program.

Thirty-four healthy, untrained middle-aged males (mean = 58.2 years) volunteered for a longitudinal study investigating alterations in lipoprotein profiles consequent to 20 weeks of aerobic training. Twenty randomly selected experimental subjects (E) participated in a walk/run training program 3 d/wk, 48 min/d, at an intensity equal to 65% to 85% of their heart rate reserve, while 14 control subjects (C) remained in an untrained state. Blood samples were obtained in the morning after a 14-hour fast. Plasma lipoproteins were separated by ultracentrifugation and agarose-column chromatography into very low (VLDL), low (LDL), and high (HDL) density lipoprotein fractions. A training effect was evidenced in E by significant increases (P less than 0.001) in absolute VO2 max (15.2%) and relative VO2 max (16.8%). Dietary composition was monitored pretraining and posttraining with no significant change seen in either E or C. Alterations in the lipoprotein profile of E included a significant increase in HDL-cholesterol (16.6%) and significant reductions in VLDL-cholesterol (72.1%), LDL-triglyceride (26.5%), VLDL-protein (33.5%), and LDL-protein (18.7%). Furthermore, no significant changes in the level of HDL-protein and apolipoprotein AI in the HDL fraction were observed in either E or C. These data suggest that aerobic training can significantly increase HDL-cholesterol and alter lipoprotein profiles, which may subsequently reduce the risk of coronary artery disease.

Cholesterol