Persons who have survived a heart attack are included in a cardiovascular rehabilitation program that encompasses physicalactivity, education on healthy lifestyle choices, and psychologicaltreatment components. Nutrition plays an important part in the lifestyle modifications for patients following a heart attack. The Mediterranean diet is recommended by guidelines due to numerous studies that have shown its effectiveness in reducing the risk of cardiovascular diseases and early mortality. The objective of this master's thesis was to assess and evaluate the efficacy of dietary habits questionnaires and standard nutritional intervention on key factors such as sex, age, education, body composition, body mass index, waist circumference, blood pressure (mmHg) measurements and laboratory indicators in comparison with lifestyle changes. These evaluations were conducted both at the start and the conclusion of the cardiovascular rehabilitation program. A total of 101 pacients were included in the study. The results of the dietary habits questionnaire indicated differences in dietary patterns with respect to sex, age, and education. Statistical significance was observed in the reduction of processed meat comsumption, moderate aerobic exercise, sleep, blood pressure, total cholesterol and LDL cholesterol. Changes in dietary habits before and after cardiovascular rehabilitation were not proven. We concluded that to change dietary habits more than just one nutrition consultation is required.
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