Shepherd et al 2015 Low Volue HIIT.PDF - RESEARCH ARTICLE Low-Volume High-Intensity Interval Trainin in a Gym Setting Improves Cardio-Metabo and

Shepherd et al 2015 Low Volue HIIT.PDF - RESEARCH ARTICLE...

This preview shows page 1 - 2 out of 17 pages.

RESEARCH ARTICLE Low-Volume High-Intensity Interval Trainin in a Gym Setting Improves Cardio-Metabo and Psychological Health Sam O. Shepherd 1 , Oliver J. Wilson 2 , Alexandra S. Taylor 3 , Cecilie Thøgersen-Ntoumani 4 , Ahmed M. Adlan 5 , Anton J. M. Wagenmakers 1 , Christopher S. Shaw 6 * 1 Research Institute for Sport & Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom, 2 Institute for Sport, Physical Activity & Leisure, Carnegie Faculty, Leeds Beckett University, Leeds, United Kingdom, 3 UBSport Hi Performance Centre, University of Birmingham, Birmingham, United Kingdom, 4 School of Psychology & Speech Pathology, Curtin University, Perth, Australia, 5 Department of Cardiology, Heartlands Hospital, Birmingham, United Kingdom, 6 School of Exercise & Nutrition Sciences, Deakin University, Geelong, Victoria, Australia * [email protected] Abstract Background Within a controlled laboratory environment, high-intensity interval training (HIT) elicits lar cardiovascular and metabolic benefits as traditional moderate-intensity continuous ing (MICT). It is currently unclear how HIT can be applied effectively in a real-world environment. Purpose To investigate the hypothesis that 10 weeks of HIT, performed in an instructor-led, grou based gym setting, elicits improvements in aerobic capacity (VO 2max ), cardio-metabolic risk and psychological health which are comparable to MICT. Methods Ninety physically inactive volunteers (42±11 y, 27.7±4.8 kg.m -2 ) were randomly assigned to HIT or MICT group exercise classes. HIT consisted of repeated sprints (15–60 seconds, >90% HR max ) interspersed with periods of recovery cycling (25 min.session -1 , 3 sessions. week -1 ). MICT participants performed continuous cycling (~70% HR max , 30–45 min.ses- sion -1 , 5 sessions.week -1 ). VO 2max , markers of cardio-metabolic risk, and psychological health were assessed pre and post-intervention. Results Mean weekly training time was 55±10 (HIT) and 128±44 min (MICT) (p<0.05), with gre adherence to HIT (83±14% vs. 61±15% prescribed sessions attended, respectively; p<0.05). HIT improved VO 2max , insulin sensitivity, reduced abdominal fat mass, and induced favourable changes in blood lipids (p<0.05). HIT also induced beneficial effects PLOS ONE | DOI:10.1371/journal.pone.0139056 September 24, 2015 1 / 17 a11111 OPEN ACCESS Citation: Shepherd SO, Wilson OJ, Taylor AS, Thøgersen-Ntoumani C, Adlan AM, Wagenmakers AJM, et al. (2015) Low-Volume High-Intensity Interval Training in a Gym Setting Improves Cardio-Metabolic and Psychological Health. PLoS ONE 10(9): e0139056. doi:10.1371/journal.pone.0139056 Editor: Stephen E Alway, West Virginia University School of Medicine, UNITED STATES Received: February 21, 2015 Accepted: September 7, 2015 Published: September 24, 2015 Copyright: © 2015 Shepherd et al. 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.
Image of page 1
Image of page 2

You've reached the end of your free preview.

Want to read all 17 pages?

  • Spring '16
  • London

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors