Browsing by Author "Senekal, Marjanne"

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    The association between the body mass index of first-year female university students and their weight-related perceptions and practices, psychological health, physical activity and other physical health indicators
    (Cambridge University Press, 2006) Cilliers, Janetta; Senekal, Marjanne; Kunneke, Ernesta
    To investigate the association between the weight status of first-year female students (FYFS) and various weight management-related characteristics to identify possible components of a weight management programme for students. Mean (^standard deviation (SD)) body mass index (BMI) of the FYFS was 21.8 ^ 2.6 kg m22 , with 7.2% being underweight, 81.9% normal-weight, 10.0% overweight and 0.8% obese. Underweight, normal-weight and overweight students differed with regard to their perception of their weight (P , 0.001), weight goals (P , 0.001) and previous weight-loss practices (P , 0.001). Mean ^ SD score on the 26-item Eating Attitudes Test (EAT-26) was 8.5 ^ 9.0 with 8.4% classified as high scorers. Mean ^ SD score on the 34-item Body Shape Questionnaire (BSQ) was 87.7 ^ 32.2, with 76.1% classified as low, 11.9% as medium and 11.9% as high scorers. The self-concept questionnaire indicated that 36.7% had a high, 43.9% a medium and 19.4% a low self-concept. Higher BMI correlated with a higher BSQ score (P , 0.001), a lower self-concept (P ¼ 0.029) and a higher EAT-26 score (P , 0.001). Smoking was prevalent amongst 13.1% of students, and 51.2% used vitamin and/or mineral supplements. Students who quitted smoking had higher (P ¼ 0.006) BMI (22.7 ^ 2.9 kg m22 ) than those who never smoked before (21.6 ^ 2.5 kg m22 ).
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    Obesity in South Africa: Challenges for government and health professionals
    (Nutrition Society, 2005) Kruger, Salome H; Puoane, Thandi; Senekal, Marjanne; Van Der Merwe, Theresa M
    OBJECTIVES: To review data on the prevalence, causes and health consequences of obesity in South Africa and propose interventions to prevent and treat obesity and related outcomes. METHODS: Data from existing literature were reviewed with an emphasis on changing eating and activity patterns, cultural factors, perceptions and beliefs, urbanisation and globalisation. Results of studies on the health consequences of obesity in South Africans are also reviewed. RESULTS: Shifts in dietary intakes and activity patterns to higher fat intakes and lower physical activity are contributing to a higher prevalence of obesity. Few overweight black women view themselves as overweight, and some associate thinness with HIV/AIDS. Glucose and lipid toxicity, associated with insulin resistance, play roles in the pathogenesis of the co-morbid diseases of obesity. Elevated free fatty acids in the black population predispose obese black patients to type 2 diabetes. CONCLUSION & RECOMMENDATIONS: Obesity prevention and treatment should be based on education, behaviour change, political support, intersectoral collaboration and community participation, local actions, wide inclusion of the population, adequately resourced programmes, infiltration of existing initiatives, evidence-based planning, and proper monitoring and evaluation. Interventions should have the following components: reasonable weight goals, healthful eating, physical activity and behavioural change. Genes and mutations affecting susceptibility to the development of co-morbidities of obesity and vulnerable periods of life for the development of obesity should be prioritised. Prevention should be managed in community services, identification of high-risk patients in primary healthcare services and treatment of co-morbid diseases in hospital services.