Network Magazine spring 2015 | Page 39

EVIDENCE-BASED PRACTICE: KETTLEBELL TRAINING Kettlebell routines feature in many clients’ exercise programs, so how does this form of training stack up against other methods? WORDS: DR MARK MCKEAN PhD itness professionals have an array of training tools and styles available to use in exercise prescription. While many of these create interest and provide variety for clients, it can be challenging to keep abreast of how effective each practice is. In this series of evidence-based articles, we summarise the latest research on a range of training tools and styles to help you better serve your clients. Here, we look at kettlebell training. F Effect on aerobic system Several recent studies have suggested that kettlebell (KB) training has a positive effect on the cardiovascular system. However, most are acute studies comparing measures or short term interventions with low numbers. Farrar et al. (2010) showed that completing as many two-handed KB swings (16kg) as possible in 12 minutes (265±68) achieved an average VO2 of 34.31 ± 5.67 ml.kg-1.min-1 and an average HR of 165 ± 13 b.min-1. This was equal to 87 per cent of the %HR max and 65 per cent of the %VO2 max achieved on the graded exercise test to exhaustion for the determination of VO2 max on the treadmill. Even though the research only used 10 recreationally active collegeaged males, the overall values suggest that such a training protocol may be useful for improving cardiovascular fitness. Using RPE to compare treadmill and KB swings, Hulsey et al. found that for their (