Research experts at the University of Wisconsin, studied the fitness benefits of kettlebells, and concluded that athletes could experience twice the results of exercise in half the time. Study participants, male and female, aged 29-46 years, were all experienced with kettlebells. Researchers found the average burn during a kettlebell snatch workout to be 20 calories per minute, the equivalent a running a 6-minute mile pace. Subjects got a vigorous workout with an average 93% of their target heart rate. Results showed the kettlebell snatch workout gives a bodybuilder or any athlete a much higher-intensity workout than standard weight training sessions, as well as meeting the industry recommendations for boosting aerobic capacity.