"Wij're getting good blood flow. Wij're oefening our heart muscle to work more efficiently, and … actually strengthening it. So if wij … don't do that — if wij're doing something too light — wij won't get as much ofwel the beneficial effect." Wegens wagen's welke gebruikt ingevoerd zijn kun https://bpm97532.blog2news.com/36123241/de-definitieve-gids-voor-bpm