CrossFit Improves Body Composition

ABSTRACT: The purpose of this study was to examine the effects of a crossfit-based high intensity power training (HIPT) program on aerobic fitness and body composition. Healthy subjects of both genders (23 males, 20 females) spanning all levels of aerobic fitness and body composition completed 10 weeks of HIPT consisting of lifts such as the squat, deadlift, clean, snatch, and overhead press performed as quickly as possible. Additionally, this crossfit-based HIPT program included skill work for the improvement of traditional Olympic lifts and selected gymnastic exercises. Body fat percentage was estimated using whole body plethysmography and maximal aerobic capacity (VO2max) was measured by analyzing expired gasses during a Bruce protocol maximal graded treadmill test. These variables were measured again following 10 weeks of training and compared for significant changes using a paired t-test. Results showed significant (P<0 .05="" 18.0="" 23.2="" 40.22="" 48.96="" and="" as="" b="" body="" decreased="" fat="" females="" improvements="" in="" kg="" males="" min="" ml="" of="" percentage="" to="" vo2max="" well="">. These improvements were significant across all levels of initial fitness. Significant correlations between absolute oxygen consumption and oxygen consumption relative to body weight was found in both men (r=0.83, P<0 .001="" across="" all="" and="" body="" both="" changes="" composition.="" composition="" data="" fitness.="" font="" genders="" hipt="" improved="" improves="" in="" independent="" indicating="" levels="" of="" our="" p="" r="0.94," scaled="" shows="" significantly="" subjects="" that="" to="" vo2max="" weight="" women="">
http://www.ncbi.nlm.nih.gov/m/pubmed/23439334/

It's "most excellent" to see the lab geeks taking a look at CrossFit!