Citing comprehensive meta analysis 3.3 calculations

However, some individuals may have a limited ability to increase their cardiorespiratory fitness (trainability) in response to endurance exercise training. Additionally, for individuals with low physical fitness, even modest improvements in fitness can have substantial health benefits. Many of these benefits are also associated with higher levels of cardiorespiratory fitness (VO 2max) which may exert protective effects that are independent of traditional risk factors. The benefits of an active lifestyle are well documented РІР‚вЂњ. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Р”В¬ompeting interests: The authors have declared that no competing interests exist. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Р”Р‡unding: This publication was partially supported by Grant Number UL1 TR000135 from the National Center for Advancing Translational Sciences (NCATS), the Mayo Foundation, and Caywood Professorship to MJJ. Received: ApAccepted: JPublished: September 16, 2013Р”В¬opyright: Р’В© 2013 Bacon et al. Earnest, University of Bath, United Kingdom These results suggest that ideas about trainability and VO 2max should be further evaluated with standardized IT or IT/CT training programs.Р”В¬itation: Bacon AP, Carter RE, Ogle EA, Joyner MJ (2013) VO 2max Trainability and High Intensity Interval Training in Humans: A Meta-Analysis.

min РІв‚¬вЂ™1) changes in VO 2max with evidence of a marked response in all subjects.A subset of 9 studies, with 72 subjects, that featured longer intervals showed even larger (РІв‚¬С0.8РІР‚вЂњ0.9 L Participants were grouped into 40 distinct training groups, so the unit of analysis was 40 rather than 37. A total of 334 subjects (120 women) from 37 studies were identified. The summary statistic of interest was the change in VO 2max. Due to heterogeneity (I 2 value of 70), statistical synthesis of the data used a random effects model. Inclusion criteria were: 1)РІвЂ°Тђ3 healthy sedentary/recreationally active humans <45 yrs old, 2) training duration 6РІР‚вЂњ13 weeks, 3) РІвЂ°Тђ3 days/week, 4) РІвЂ°Тђ10 minutes of high intensity work, 5) РІвЂ°Тђ1РІв‚¬В¶1 work/rest ratio, and 6) results reported as mean Р’В± SD or SE, ranges of change, or individual data. To address this topic we analyzed IT and IT/CT studies published in English from 1965РІР‚вЂњ2012.

This raises questions about the role of exercise intensity and the trainability of VO 2max.

By contrast, studies using interval training (IT) or combined IT and continuous training (CT) have reported mean increases in VO 2max of up to РІв‚¬С1.0 L Endurance exercise training studies frequently show modest changes in VO 2max with training and very limited responses in some subjects.

Citing comprehensive meta analysis 3.3 calculations