mercredi 31 juillet 2013

Are Kettlebells Or Dumbbells Superior For Gym Based Strength Gains?

By Russ Howe


It's a war which has raged on for the best part of ten years but, thanks to recent scientific research, today you will get a definite answer to the question: Kettlebells vs dumbbells - which method will give you the best results?

While it's not uncommon to meet individuals who swear blindly that following one protocol is the best way to build muscle and lose body fat, the general consensus is that the optimal results can be achieved through a varied combination of both methods as well as lesser known styles, including resistance bands and suspension trainers.

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.

In the study, researchers ordered their first group of subjects to perform a six week course of swings, goblet squats and accelerated swings using a 35 pound weight. Improvements of squat ability, vertical leap and power clean strength were documented.

Group B, on the other hand, were made to follow a six week program using roughly 80% of their one repetition maximum on squat, power clean and high pulls using a barbell.

At the end of the six week study, the results of the two groups were compiled and compared. The overwhelming winner was the second group - the free weight group. These individuals boasted improvements of a 15% higher squat compared to group A's 5% increase. They also noticed a 10% power clean and 4% vertical leap boost.

Their kettlebell counterparts, on the other hand, could only manage a 4% increase to their power clean and added just 1% to their vertical leap. Those results were quite surprising, given the explosive nature of kettlebell training in general.

So if the results of this study from California State University, Fullerton are to be used as evidence in ending this popular argument then free weights certainly won the war hands down.

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.

So, who wins the battle of kettlebells vs dumbbells? If the latest scientific research is to be used as a barometer to end the argument then you have to jump on the side of free weights.




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