Deakin University

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Effect of dietary fat reduction and increased aerobic exercise on cardiovascular risk factors

journal contribution
posted on 1997-01-01, 00:00 authored by L J Nolte, Caryl NowsonCaryl Nowson, A C Dyke
1. The combined effect of dietary fat reduction and increased aerobic exercise on coronary heart disease (CHD) risk factors was investigated in healthy, normolipidaemic, normotensive, sedentary individuals. 2. After a baseline period of 2 weeks, 21 subjects were randomly allocated to one of two intervention groups (low fat exercise (LFEX) or low fat control (LFC) for 8 weeks. Both groups were counselled to reduce their dietary fat intake to 20-25% energy from fat. The LFEX group was also required to commence an aerobic exercise programme (4 x 45 min per week). 3. In both groups, the falls in total cholesterol seen at week 4 were not maintained at the end of the study; however, the LFEX group maintained a fall in low-density lipoprotein (LDL) of 0.21 ± 0.11 mmol/L. At the end of the study, the LFC group experienced a fall in high-density lipoprotein (HDL)-cholesterol of 0.16 ± 0.05 mmol/L, due to a 0.19 ± 0.07 mmol/L fall in the HDL2 subfraction. The LFEX group experienced no change in HDL (- 0.09 ± 0.06 mmol/L) or HDL2 (- 0.09 ± 0.05 mmol/L). 4. At the end of the study the LFEX and LFC groups experienced a 7 ± 3 and 5 ± 1 mmHg fall in systolic blood pressure, respectively, while the LFEX group also observed a 4 ± 2 mmHg fall in diastolic blood pressure. 5. The benefits of a low-fat diet combined with aerobic exercise include a reduction in LDL and blood pressure, while maintaining HDL through the HDL2 subfraction.



Clinical and Experimental Pharmacology and Physiology






901 - 903



Publication classification

CN.1 Other journal article