This is a study that has just been published:
Farrar, Ryan E; Mayhew, Jerry L; Koch, Alexander J. Oxygen Cost of Kettlebell Swings. The Journal of Strength & Conditioning Research. 24(4):1034-1036,
April 2010.
The short version of this study: Kettlebell swings are an excellent exercise for improving your conditioning, especially when performed as a "US Department of Energy Man-Maker".
This protocol is quite simple, perform as many swings as you can in 12 minutes. The program comes from one of the best Kettlebell training books on the market today, "Enter the Kettlebell".
In the book, "Enter the Kettlebell", the author Pavel Tsatsouline outlines a simple and effective plan of training with kettlebells. One of the programs outlined in the book is the exact same program used in this research.
Abstract (from the above research)
In recent years, kettlebells have re-emerged as a popular training modality for the conditioning of athletes. We sought to quantify the aerobic challenge of one popularly recommended kettlebell workout. Ten college-aged men (age = 20.8 6 1.1 years, height = 179 6 3 cm, body mass = 77.3 6 7.7 kg, _VO2max = 52.78 6 6.22 mlkg21min21) completed a graded exercise test to exhaustion for the determination of _ VO2max. Two to 7 days later, subjects completed a kettlebell exercise routine consisting of as many 2-handed swings as could be completed in 12 minutes using a 16-kg kettlebell. During this exercise bout, subjects’ expired gases were collected and analyzed for the determination of _VO2, and heart rate (HR) was continuously measured. Percent HRmax and %_ VO2max achieved during the kettlebell exercise were compared with each other using a paired t-test. Subjects completed 265 6 68 swings during the 12 minutes and achieved an average _VO2 of 34.31 6 5.67 mlkg21min21 and an average HR of 165 6 13 bmin21. The average %HRmax (86.8 6 6.0%) during kettlebell exercise was significantly higher (p , 0.001) than the average %_VO2max (65.3 6 9.8%) that was achieved. Continuous kettlebell swings can impart a metabolic challenge of sufficient intensity to increase _VO2max. Heart rate was substantially higher than _VO2 during kettlebell swings. Kettlebells provide a useful tool with which coaches may improve the cardiorespiratory fitness of their athletes. However, HRs achieved during continuous kettlebell exercise are significantly higher than actual _ VO2.
Where to get the best Kettlebells?
I know that lately I have been writing a lot about this kettlebell thing
but it is the real deal BUT only when used correctly and intelligently.
Application of this research is really wide spread to many sports and simply just active people who have limited time for lots of physical training.
For example, take any sport that requires lots of running and where chronic knee pain is highly prevalent (e.g. basketball, volleyball, handball, football, soccer, ...). The kettlebell swing performed as a "US
Department of Energy Man-Maker" can be a very time-efficient way to condition the athlete while at the same time saving their knees in the process. So, instead of doing extra running for conditioning, just do Kettlebell Swings a few times per week.
The Kettlebell Swing also has the benefit of extensively training the posterior chain (back side), which is usually very underdeveloped in many athletes who have chronic knee pain (e.g. conditions like jumpers knee). Just playing the sport overdevelops the anterior aspect of the thigh so the Kettlebell Swing becomes not only great for conditioning but can also be used for therapeutic purposes.
Enjoy and Be Well,
Michael Reid,
B.HE. CSCS, RKC
www.michaelreid.ca
www.WaterPoloTraining.net
References:
"Enter the Kettlebell" - the book that outlines the exact same program used in the above research and the most safe and effective technique of using kettlebells.
"Enter the Kettlebell - DVD" - a detailed video outlining how to properly perform the kettlebell swing and all the other exercises outlined in the book of the same name.
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