scholarly journals Changes in VO2max and cardiac output in response to short-term high-intensity interval training in Caucasian and Hispanic young women: A pilot study

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0244850
Author(s):  
Jamie L. De Revere ◽  
Rasmus D. Clausen ◽  
Todd A. Astorino
Keyword(s):  
Cardiac Output ◽  
Exercise Training ◽  
High Intensity ◽  
Interval Training ◽  
Similar Response ◽  
High Intensity Interval Training ◽  
African American Adults ◽  
Main Effect ◽  
High Intensity Interval ◽  
Post Hoc

Data obtained in primarily Caucasian (C) and African American adults show that ethnicity does not mediate responsiveness to exercise training. It is unknown if Hispanics (H), who face elevated health risks and are less active than C, exhibit a similar response to exercise training. This study compared cardiorespiratory and hemodynamic responses to high intensity interval training (HIIT) between C and H women. Twelve C and ten H women ages 19–35 yr who were non-obese and inactive completed nine sessions of HIIT over a 3 wk period. Maximal oxygen uptake (VO2max) was assessed twice at baseline during which thoracic impedance was used to evaluate heart rate (HR), stroke volume (SV) and cardiac output (CO). Habitual physical activity was assessed using accelerometry. Results showed a significant main effect of training for VO2max in C and H (F = 13.97, p = 0.001) and no group by training interaction (p = 0.65). There was a main effect of training for CO and SV in C and H (F = 7.57, p = 0.01; F = 7.16, p = 0.02), yet post hoc analyses revealed significant increases were only exhibited in C. There was a tendency for a group by training interaction for a-VO2diff (F = 1.32, p = 0.054), and a large effect size was seen in H (d = 1.02). Overall, data show no effect of ethnicity on changes in VO2max with low-volume HIIT, yet C and H may achieve this outcome differently. Longer studies in similar populations are needed to verify this result.

High intensity interval training reduces systemic inflammation in post-PCI patients

2011 ◽  
Vol 18 (6) ◽  
pp. 850-857 ◽  
Author(s):  
Peter Scott Munk ◽  
Unni Mathilde Breland ◽  
Pål Aukrust ◽  
Thor Ueland ◽  
Jan Terje Kvaløy ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Exercise Training ◽  
Stable Angina ◽  
High Intensity ◽  
Inflammatory Markers ◽  
Cell Activation ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Endothelial Cell Activation ◽  
High Intensity Interval

Background: Increased plasma levels of inflammatory markers and markers of endothelial cell activation have been associated with increased risk for cardiovascular events. Exercise training may lower the risk for coronary heart disease by attenuating inflammation and improving endothelial function. The objective of this study was to evaluate effects of regular high-intensity exercise training on a wide range of markers of inflammation and endothelial cell activation. Materials and methods: Consecutively, 40 patients were prospectively randomized to a 6 months supervised high-intensity interval training programme or to a control group following successful percutaneous coronary intervention (PCI). Blood samples of 36 patients with stable angina, drawn at baseline (before PCI) and at 6 months, were analysed. Late luminal loss was measured at 6 months using quantitative coronary angiography. Results: At 6 months, levels of the inflammatory markers interleukin (IL)-6 and IL-8 were reduced and levels of the anti-inflammatory cytokine IL-10 increased in the training group only. The decrease in IL-6 and C-reactive protein levels were significantly correlated with the decrease in luminal loss following PCI. In contrast to these anti-inflammatory effects, training had no effect on markers of platelet-mediated inflammation, and the effect of training on markers on endothelial cell activation were rather complex showing attenuating (von Willebrand factor) and enhancing (E-selectin and vascular cell adhesion molecule 1) effects. Conclusions: Regular exercise training in stable angina patients following PCI may attenuate some, but not all, inflammatory pathways, potentially contributing to the beneficial effects of exercise training on restenosis.

scholarly journals Personalized Moderate-Intensity Exercise Training Combined with High-Intensity Interval Training Enhances Training Responsiveness

2019 ◽  
Vol 16 (12) ◽  
pp. 2088 ◽  
Author(s):  
Bryant R. Byrd ◽  
Jamie Keith ◽  
Shawn M. Keeling ◽  
Ryan M. Weatherwax ◽  
Paul B. Nolan ◽  
...  
Keyword(s):  
Resistance Training ◽  
Exercise Training ◽  
Training Program ◽  
High Intensity ◽  
Interval Training ◽  
Moderate Intensity ◽  
Z Score ◽  
High Intensity Interval Training ◽  
Resistance Training Program ◽  
High Intensity Interval

This study sought to determine if personalized moderate-intensity continuous exercise training (MICT) combined with high-intensity interval training (HIIT) was more effective at improving comprehensive training responsiveness than MICT alone. Apparently healthy, but physically inactive men and women (n = 54) were randomized to a non-exercise control group or one of two 13-week exercise training groups: (1) a personalized MICT + HIIT aerobic and resistance training program based on the American Council on Exercise guidelines, or (2) a standardized MICT aerobic and resistance training program designed according to current American College of Sports Medicine guidelines. Mean changes in maximal oxygen uptake (VO2max) and Metabolic (MetS) z-score in the personalized MICT + HIIT group were more favorable (p < 0.05) when compared to both the standardized MICT and control groups. Additionally, on the individual level, there were positive improvements in VO2max (Δ > 4.9%) and MetS z-score (Δ ≤ −0.48) in 100% (16/16) of participants in the personalized MICT + HIIT group. In the present study, a personalized exercise prescription combining MICT + HIIT in conjunction with resistance training elicited greater improvements in VO2max, MetS z-score reductions, and diminished inter-individual variation in VO2max and cardiometabolic training responses when compared to standardized MICT.

The effects of short-term high-intensity interval training vs. moderate-intensity continuous training on plasma levels of nesfatin-1 and inflammatory markers

2015 ◽  
Vol 21 (3) ◽  
Author(s):  
Sajad Ahmadizad ◽  
Alireza Salimi Avansar ◽  
Khosrow Ebrahim ◽  
Mohsen Avandi ◽  
Mansour Ghasemikaram
Keyword(s):  
Insulin Resistance ◽  
Exercise Training ◽  
Weight Management ◽  
High Intensity ◽  
Inflammatory Markers ◽  
Interval Training ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
Tnf Α ◽  
High Intensity Interval

AbstractExercise training is an effective method of weight management, and knowing about its influence on the hormones involved in the regulation of food intake and inflammation could be useful for body weight management. Therefore, the purpose of this study was to compare the effects of 6 weeks of high-intensity interval training (HIIT) and moderate-intensity continuous exercise training (MCT) on nesfatin-1, interleukin (IL)-6, and tumor necrosis factor alpha (TNF-α).Thirty sedentary overweight men (Mean±SD; age, 25±1 years) were divided into three (n=10) body mass index-matched groups. The participants in the training groups performed either HIIT or MCT protocols 3 days per week for 6 weeks followed by a week of detraining.Plasma IL-6 and TNF-α did not significantly change after training, but nesfatin increased significantly only with HIIT compared with the control group (p<0.05). In addition, fasting glucose, insulin, and homeostasis model estimated insulin resistance (HOMA-IR), decreased significantly following both HIIT and MCT training (p<0.05). After a detraining period, the plasma nesfatin-1 did not return to pre-training levels in the HIIT group.Both the HIIT and MCT groups had similar effects on inflammatory markers and insulin resistance in men who are overweight, but the HIIT seems to have better anorectic effects (as indicated by nesfatin) compared with MCT.

High-Intensity Interval Training Increases Cardiac Output and V˙O2max

2017 ◽  
Vol 49 (2) ◽  
pp. 265-273 ◽  
Author(s):  
TODD A. ASTORINO ◽  
ROSS M. EDMUNDS ◽  
AMY CLARK ◽  
LEESA KING ◽  
RACHAEL A. GALLANT ◽  
...  
Keyword(s):  
Cardiac Output ◽  
High Intensity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
High Intensity Interval

scholarly journals Exercise training in heart failure: role, prescription and program

2018 ◽  
Vol 38 (4) ◽  
pp. 226-233
Author(s):  
Raymond Pranata ◽  
Emir Yonas ◽  
Bambang B. Siswanto ◽  
Budhi S. Purwowiyoto
Keyword(s):  
Quality Of Life ◽  
Heart Failure ◽  
Exercise Training ◽  
High Intensity ◽  
Exercise Prescription ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Continuous Training ◽  
High Intensity Interval

Heart failure is one of the most common cardiovascular diseases and is a final pathway of various cardiac pathologies. Exercise intolerance and dyspnea accompanied by dete­riorating quality of life are common issues in those suffering from heart failure and may persist despite optimal medical therapy. Exercise training in heart failure theoretically helps to slow down the deterioration of the heart by antagonizing excess neurohormonal activity in heart failure, which translated into better functional capacity and quality of life. Exercise prescription is a mean of assessing and interpreting clinical information and applying the principles of training to develop an appropriate regimen and should be tailored to patient’s clinical condition. Resistance training improves peak VO2, exercise capacity and quality of life in heart failure patients. Both continuous and interval exercise training are linked to better quality of life despite ambiguous results in mortality. The aim of this article is to discuss the benefits of exercise in patients with congestive heart failure, exercise prescription, and exercise program including high-intensity interval training, continuous training and resistance exercise.   Abstrak Gagal jantung adalah salah satu penyakit kardiovaskular yang paling sering ditemui dan merupakan akhir daripada banyak jenis patologi jantung. Intoleransi olahraga dan sesak nafas disertai dengan memburuknya kualitas hidup merupakan beberapa masalah yang sering dihadapi oleh pasien gagal jantung, meskipun telah diberikan pengobatan yang optimal. Latihan olahraga pada gagal jantung secara teoritis dapat memperlambat menurunnya fungsi jantung dengan melawan aktivitas neurohormonal yang meningkat pada kondisi gagal jantung yang dicerminkan dengan kapasitas fungsional dan kualitas hidup yang lebih baik. Preskripsi olahraga meliputi pemeriksaan dan interpretasi dari informasi klinis dan aplikasi dari prinsip latihan untuk membentuk regimen yang sesuai dan harus di sesuaikan dengan keadaan klinis pasien. Latihan beban memperbaiki fungsi VO2 puncak, kapasitas olahraga dan kualitas hidup pada pasien dengan gagal jantung. Kedua metode olahraga baik secara kontinu ataupun interval dihubungkan dengan kualitas hidup yang lebih baik meskipun masih ambigu dalam hal mortalitas. Tujuan artikel ini adalah membahas manfaat latihan fisik pada pasien dengan gagal jantung kongestif, cara peresepan serta membahas program high intensity interval training, continuous training serta latihan beban.

scholarly journals High intensity interval training versus moderate intensity continuous training for people with interstitial lung disease: protocol for a randomised controlled trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Leona M. Dowman ◽  
Anthony K. May ◽  
Catherine J. Hill ◽  
Janet Bondarenko ◽  
Lissa Spencer ◽  
...  
Keyword(s):  
Interstitial Lung Disease ◽  
Exercise Training ◽  
Lung Disease ◽  
High Intensity ◽  
Pulmonary Rehabilitation ◽  
Interval Training ◽  
Trial Registration ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
High Intensity Interval

Abstract Background Interstitial lung disease is a debilitating condition associated with significant dyspnoea, fatigue, and poor exercise tolerance. Pulmonary rehabilitation is an effective and key intervention in people with interstitial lung disease. However, despite the best efforts of patients and clinicians, many of those who participate are not achieving clinically meaningful benefits. This assessor-blinded, multi-centre, randomised controlled trial aims to compare the clinical benefits of high intensity interval exercise training versus the standard pulmonary rehabilitation method of continuous training at moderate intensity in people with fibrotic interstitial lung disease. Methods Eligible participants will be randomised to either a standard pulmonary rehabilitation group using moderate intensity continuous exercise training or high intensity interval exercise training. Participants in both groups will undertake an 8-week pulmonary rehabilitation program of twice-weekly supervised exercise training including aerobic (cycling) and strengthening exercises. In addition, participants in both groups will be prescribed a home exercise program. Outcomes will be assessed at baseline, upon completion of the intervention and at six months following the intervention by a blinded assessor. The primary outcome is endurance time on a constant work rate test. Secondary outcomes are functional capacity (6-min walk distance), health-related quality of life (Chronic Respiratory Disease Questionnaire (CRQ), St George’s Respiratory Questionnaire idiopathic pulmonary fibrosis specific version (SGRQ-I), breathlessness (Dyspnoea 12, Modified Medical Research Council Dyspnoea Scale), fatigue (fatigue severity scale), anxiety (Hospital Anxiety and Depression Scale), physical activity level (GeneActiv), skeletal muscle changes (ultrasonography) and completion and adherence to pulmonary rehabilitation. Discussion The standard exercise training strategies used in pulmonary rehabilitation may not provide an optimal exercise training stimulus for people with interstitial lung disease. This study will determine whether high intensity interval training can produce equivalent or even superior changes in exercise performance and symptoms. If high intensity interval training proves effective, it will provide an exercise training strategy that can readily be implemented into clinical practice for people with interstitial lung disease. Trial registration ClinicalTrials.gov Registry (NCT03800914). Registered 11 January 2019, https://clinicaltrials.gov/ct2/show/NCT03800914 Australian New Zealand Clinical Trials Registry ACTRN12619000019101. Registered 9 January 2019, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=376050&isReview=true

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