You may have a favorite exercise routine. Or you may want to start exercising more. Wonder whether it’s better to purchase a gym membership, sign up for an aerobics class or buy free weights and resistance bands to use at home? We asked our exercise physiologists — who understand the mechanisms and impact of physical activity on health and fitness — whether cardiovascular or resistance training had the edge. See if you can guess the winner of our Health Hub Knockout and get training tips for working out.