Krassimir Petkov¹

¹National Sports Academy (Sofia, Bulgaria)

CHANGES IN SERUM CHOLESTEROL AND GLUCOSE LEVELS OF OBESE PEOPLE DURING A 8 WEEK LONG CYCLE OF PHYSICAL ACTIVITY COMBINED WITH ENERGY DEFFICIENT DIET

Sport Mont 2014, XII(40-41-42), 113-119

Abstract

Introduction. The rate of obesity among people in many countries escalated in recent years. A lot of different methodologies were implemented to address this problem. To address these problems in this study we tried to evaluate the impact of a daily schedule, consisting of physical activity of anaerobic-lactic type (duration of 20-30 sec), combined with an energy deficient diet on the blood cholesterol and glucose levels in obese people. Methods: The participants were 20 healthy adults of both sexes with Body Mass Index (BMI) values above 27. They were randomly assigned to 2 groups – the first one underwent an energy deficient diet with a energy restriction of 30% of the theoretically calculated energy balance. The second group was the control one with no dietary restrictions. All participants performed 30 min. circuit training sessions of resistance exercises 3 times a week. The study was 8 weeks long. We measured the following blood components twice – once in the beginning and once at the end of the experiment: 1. Glucose; 2. Total cholesterol; 3. High density lipoproteins (HDL); 4. Low density lipoproteins (LDL); 5. Triglycerides. Results. We found no statistically significant differences (p≤0.05) in all of the blood serum variables we studied in both groups of participants. Discussion: We found no evidence of any favorable effects of a daily regimen consisting of anaerobic-lactic type of physical exercises and low caloric diet on the serum levels of cholesterol and glucose. When interpreting the results one must consider two facts (important in our opinion): 1. The relatively low number of the subjects and 2. the duration of the study, which was only 8 weeks. It is possible that such a methodology has to be applied for longer periods of time for the achievement of significant results. This could be a topic for future studies. References: References: 1. Želяzkov CV, Daseva D (2002). Osnovi na sportnata trenirovka.[Basics of sports training. In Bulgarian]. Sofiя, Gera art. Van Aggel-Leijssen DP, Saris WH, Wagenmakers AJ, et al. (2001). Obes Res, 9(2), 86-96. Brill JB, Perry AC, Parker L, et al. (2002). Int J Obes, 26(11), 1484-93. Borsheim E, Bahr R. (2003). Sports Med, 33(14), 1037-60. Brzycki M (1998). A Practical Approach To Strength Training. McGraw-Hill Baechle TR. Cullinen K, Caldwell M (1998). J Am Diet Assoc; 98(4), 414-8.

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