vendredi 9 août 2013

Kettlebells Vs Dumbbells - Which Method Returns Best Results?

By Russ Howe


If you were to put kettlebells vs dumbbells into a fight to see which training method returned the best overall strength gains, who do you think would come out on top? This is a popular gym argument which has raged for many years, and today we will use the latest science to teach you the answer.

If there is one thing which many people mistakenly do in gyms around the world, it is buying in to the false belief that one way of training is the best over any other method. This is particularly true with the two mentioned above. Many people are either on one side of the fence or the other. Optimal results can be achieved by combining these methods with lesser known techniques, such as yoga, suspension trainers and body weight exercises.

However, recent scientific research looked into the kettlebell training style in direct comparison to free weight training in a bid to put an end to the arguments among fitness enthusiasts.

The study followed a protocol where Group A would be using a 16 kilogram weight to perform a six week program of swings, accelerated swings and goblet squats in an attempt to boost vertical leap, power clean and squat strength levels.

The free weights group performed a six week program of barbell squat, power clean and high pull using around 80% of their one rep max on each exercise.

The results clearly showed that the free weight group enjoyed much greater gains in strength than the kettlebell group. First of all, the barbell/dumbbell group noticed a massive increase in their squat strength of 15%, as well as an increase in power clean strength of 10% and a vertical leap boost of 4%.

The kettlebell group lagged behind with only a 4% power clean boost and 1% vertical leap improvement. Given that this piece of kit is well known for it's explosiveness, a mere 1% boost to vertical leap strength was surprisingly low in comparison to what could be achieved through free weights.

These results clearly document that free weights return superior strength gains overall.

Of course, it would be very silly to take this study on face value and insist that you are only going to train with barbells and dumbbells from now on. Just because they were shown to be superior across the board for strength gains does not mean that any other form of training is useless. For example, body weight jump squats have been shown to recruit 40% more muscle fibers than barbell squats, does this mean you should never squat with a barbell again? No, of course not.

The best way to develop a well rounded training program is to use aspects of different training methods until you find something which works for you. It is not uncommon to see bodybuilders, who are primarily known to use free weights and machines, adopt exercises like swings into their routine from time to time.

The battle between kettlebells vs dumbbells will be one that undoubtedly cuts most gyms down the middle depending upon personal choice. However, the latest scientific research clearly documents one winner.




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