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CASE STUDY – Year 3 (KNOWNING AND UNDERSTANDING)
A 16year old boy has a body fat of 50.8% and a Body Mass Index (BMI) of 42.8kg/m2 was seeking medical treatment in an outpatient obesity hospital at Korle-Bu Teaching Hospital (KBTH), Ghana. He has suffered from several cardiorespiratory diseases and is not qualified for surgery of this condition until his BMI reduces to 25kg/m2. Additionally he was physically challenged and all treatment option used to control his obesity proved futile. He has been worried about his weight because he is not capable of doing any physical exercises. As a year three student and as part of the IB learner profile, being a communicator to the patient, the essential benefits of weight loss with the help of the following guidelines listed below.

CRITERIA B (GUIDELINES)
1. With the help of diagrams and your knowledge and understanding in Physical and Health Education, please draw a two-month plan to aid him with his weight loss from BMI of 48.2kg/m2 to 25kg/m2 and body fat of 50.8% to a normal of 22.9% which are considered as normal body weight at that age.

Sagot :

noorliya

Answer:

Obesity is a major contributor to the burden of metabolic dysfunction and to several chronic diseases including type 2 diabetes [1]. In the southern parts of Ghana, especially in the Greater Accra region and its environs, the prevalence of obesity and type 2 diabetes have been reported to be increasing steadily [2, 16]. What is not clear is the contributory effects of gender, physical activity and diabetes mellitus on obesity. The present study evaluated the impact of serum leptin and hsCRP levels in obese Ghanaian subjects with and/or without type 2 diabetes. In this study, obese subjects with type 2 diabetes had lower serum leptin but higher hsCRP concentrations than obese non-diabetic individuals. Multivariate analysis further revealed that, obese persons with type 2 diabetes were three times less likely to have elevated leptin levels than obese controls. Further, obese diabetic men in this study, with poor glycemic control, had lower leptin levels. A possible explanation for reduced leptin levels in persons with type 2 diabetes may be due to insulin resistance, a modulator of leptin production. Thus defect in glucose sensing, as seen in type 2 diabetes could be responsible for the lower leptin production, suggesting a signalling crosstalk in glucose regulation. Altered body fat distribution in diabetic subjects have been suggested as an alternative explanation for lowered leptin levels [17,18,19,20]. Even though this study did not observe differences in visceral fat among the two groups, leptin levels correlated positively with measures of adiposity and body composition in both groups indicating a possible synergistic effect. A third explanation could be due to the use of statin medications. Twelve (12) of our case subjects were on lipid lowering drugs and this could have contributed to such an observation. Result however were not statistically significantly when we excluded those on lipid lowering drugs from the analysis. Serum leptin levels in this study was also influenced by gender. Obese females were about 10 times more likely to have higher leptin levels than obese males. Stimulation of leptin mRNA production by 17β-estradiol in females could explain the above observation [21]. An inverse relationship has also been observed in a male cohort for leptin versus testosterone levels [22]. Levels of hsCRP among obese persons with type 2 diabetes in this study, was significantly higher than controls suggesting a possible directional relationship between insulin resistance and chronic inflammation. Whereas this study showed no variations in body composition, prior studies showed a strong association between hsCRP and measures of central obesity [23]. In summary, results highlight relationships of leptin and hsCRP with obesity and type 2 diabetes. We demonstrated that type 2 diabetes and gender were independent factors in determining serum leptin levels among obese subjects.

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