Omega-3 vetzuren samen met bewegen voor vetverlies en een gezond hart.*
Uit een kleine studie blijkt dat visolie samen met bewegen het beste voor hart- en bloedvaten is. 75 vrijwilligers werden in 4 groepen verdeeld die dagelijks of 6 gram visolie + bewegen, alleen visolie, 6 gram zonnebloemolie + bewegen of alleen zonnebloemolie als toevoeging aan hun dieet ontvingen. De 6 gram visolie was inclusief 260 mg omega-3 vetzuur DHA en 60 gram EPA. Het bewegen bestond uit 3x in de week 45 minuten lopen of wandelen. Na 12 weken bleek de groep van de visolie en bewegen veruit de beste waarden triglyceriden, goed cholesterol (HDL) en bloeddoorstroming te hebben. Ook het meeste vet werd in deze groep verbrand.
Fish
Oil-Exercise Combo May Boost Cardio Health
A
combination of fish-oil supplements and exercise may help improve cardiovascular
health more than either one alone, an Australian study suggests.
The
study, published in this month's issue of the American Journal of Clinical
Nutrition, included 75 overweight men and women, ages 25 to 65, who had at
least one of the following cardiovascular risk factors -- mild hypertension,
elevated total cholesterol, and elevated plasma triacylglycerols.
The
volunteers were divided into groups that received either: 6 grams fish oil (including
260 milligrams docosahexaenoic acid and 60 milligrams eicosapentaenoic acid); 6
grams fish oil/day and an exercise regimen of 45 minutes of running or walking 3
times weekly; 6 grams sunflower oil (placebo)/day; or 6 grams sunflower oil/day
and the exercise regimen.
The
study found that the use of fish oil resulted in a larger decrease in plasma
triacylglycerols, a larger increase in plasma HDL ("good")
cholesterol, and greater improvement in flow-mediated vascular dilation (a
healthy opening of the blood vessels) than the sunflower oil.
Exercise
improved small artery flexibility, and both exercise and fish oil reduced fat
mass.
The study confirms the findings of previous research that found that exercise and fish oil benefit cardiovascular health, the study authors said. They suggested that fish oil could be a useful adjunct to exercise programs designed to improve body composition. Further studies should be conducted to better understand how fish oil and exercise achieve this improvement. (Mei 2007)