We have located links that may give you full text access.
Training intensity relative to ventilatory thresholds determines cardiorespiratory fitness improvements in sedentary adults with obesity.
European Journal of Sport Science 2018 October 32
The aim of the present study was to study if training intensity relative to ventilatory thresholds (VTs) determines the improvements in cardiorespiratory fitness (CRF) in middle-aged sedentary individuals with obesity. Before and after 16-weeks of HIIT (43-min alternating bouts at 70/90% of HRMAX ), oxygen consumption ([Formula: see text]O2 ) and heart rate (HR) at ventilatory threshold 1 ([Formula: see text]O2VT1, HRVT1 ), ventilatory threshold 2 ([Formula: see text]O2VT2 , HRVT2 ) and at maximal effort ([Formula: see text]O2MAX , HRMAX ) were assessed during a graded cycle-ergometer exercise test. Retrospectively, participants were divided into two groups based on whether training intensities were under (UNDER; n = 39) or over (OVER; n = 37) VT1 and VT2 . At baseline, age, body composition, [Formula: see text]O2VT1, [Formula: see text]O2VT2 , and HRMAX were similar in both groups. However, [Formula: see text]O2MAX was higher in OVER (P = 0.033), whereas HRVT1 and HRVT2 were higher in UNDER (P < 0.05). [Formula: see text]O2MAX (9.0%) and HRMAX (2.2%) improved similarly in both groups. [Formula: see text]O2VT1 and [Formula: see text]O2VT2 improved with training in both groups (P < 0.001) but the improvement was larger in OVER versus UNDER in [Formula: see text]O2VT1 (P = 0.013) and tended to be higher in [Formula: see text]O2VT2 (P = 0.068). HRVT1 increased only in OVER (P < 0.001), whereas HRVT2 did not change in any group (P = 0.248). A 16-week programme of HIIT improves [Formula: see text]O2MAX similarly in individuals training at intensities over or under their VTs. However, individuals training over their VTs showed a larger improvements in [Formula: see text]O2VT1 expanding exercise workloads fuelled by oxidative metabolism.
Full text links
Related Resources
Trending Papers
Proximal versus distal diuretics in congestive heart failure.Nephrology, Dialysis, Transplantation 2024 Februrary 30
World Health Organization and International Consensus Classification of eosinophilic disorders: 2024 update on diagnosis, risk stratification, and management.American Journal of Hematology 2024 March 30
Heart failure with preserved ejection fraction: diagnosis, risk assessment, and treatment.Clinical Research in Cardiology : Official Journal of the German Cardiac Society 2024 April 12
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app