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[Low-fat diet and physical training in coronary heart disease. Long-term results of secondary prevention]
J Niebauer1, R Hambrecht, C Marburger
1Abteilung Innere Medizin III, Medizinische Universitätsklinik Heidelberg.
Insights
A structured low-fat diet and regular physical training significantly improved cholesterol levels and physical performance in men with coronary heart disease over six years.
Area of Science:
- Cardiology
- Preventive Medicine
- Exercise Physiology
Background:
- Coronary heart disease (CHD) poses a significant health burden.
- Lifestyle modifications, including diet and exercise, are crucial for managing CHD.
- Long-term effects of structured interventions require further investigation.
Purpose of the Study:
- To evaluate the long-term impact of a supervised low-fat diet and physical training program on CHD patients.
- To compare the outcomes of an intervention group with a control group receiving standard advice.
Main Methods:
- A 6-year prospective study involving 36 men with diagnosed CHD.
- Intervention group: structured low-fat diet, supervised exercise (sport group, ergometry).
- Control group: received advice but relied on self-initiative for diet and exercise.
Main Results:
- The intervention group showed a significant decrease in total cholesterol (243 to 219 mg/dl) and a significant increase in physical performance (169 to 202 W).
- The control group exhibited no significant changes in total cholesterol or physical performance.
- Significant differences in outcomes were observed between the groups after 6 years.
Conclusions:
- A structured low-fat diet combined with regular physical training offers significant long-term benefits for patients with coronary heart disease.
- This intervention appears to slow the progression of CHD compared to standard care.
- Supervised lifestyle modification programs are effective in improving cardiovascular health markers.
Abstract:
The long-term effect of a low-fat diet and physical training was investigated in 36 men (mean age 51 +/- 6 years) with coronary heart disease (one-vessel disease, n = 11; two vessel-disease: n = 18; three-vessel disease: n = 7). 18 patients (interventionist, group 1) undertook physical training within a coronary sport group (1 h twice weekly) and daily bicycle ergometry (30 min). They were held to a low-fat diet. In the remaining 18 patients (control, group 2), physical training and low-fat diet depended on own initiative after receiving advice. Over an observation period of 6 years total cholesterol concentration in the 17 patients of group 1 decreased significantly (243 +/- 33 vs. 219 +/- 28 mg/dl; P < 0.02). Physical performance in 12 patients (group 1) increased from 169 +/- 40 to 202 +/- 42 W in (P < 0.01). In contrast, total cholesterol increased slightly in group 2 (n = 16) from 245 +/- 31 at the beginning to 247 +/- 39 mg/dl (no significant change) at the end of the 6 years. Physical performance (n = 12) decreased slightly from 165 +/- 45 to 146 +/- 52 W (not significant). The difference between the two groups was significant after 6 years (P < 0.02 and P < 0.007, respectively). There seemed to be a tendency for progression of the coronary heart disease to be slower in the interventionist than the control group.
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