The Effects of Low Volume High Intensity Interval Training Vs. Periodized High Intensity Interval Training on Cardiorespiratory Fitness in Sedentary Women with Obesity - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Effects of Low Volume High Intensity Interval Training Vs. Periodized High Intensity Interval Training on Cardiorespiratory Fitness in Sedentary Women with Obesity write by Amy Clark. This book was released on 2018. The Effects of Low Volume High Intensity Interval Training Vs. Periodized High Intensity Interval Training on Cardiorespiratory Fitness in Sedentary Women with Obesity available in PDF, EPUB and Kindle. To investigate effects of two high intensity interval training (HIIT) regimes on changes in maximal oxygen uptake (VO2max), O2 pulse and ventilatory threshold (VT) in obese, sedentary women. Methods: 17 obese sedentary women (age and BMI=37.5±10.5 years and 39.0±4.7 kg/m2) participated in a six-week exercise intervention with three training sessions per week. Participants were randomized to low volume HIIT (LOW) (n=9, VO2max=21.5±3.2 mL/kg/min) or periodized HIIT (PER) (n=8, VO2max=17.3±2.4mL/kg/min). VO2max and peak power output (PPO) were measured on a cycle ergometer at baseline and at 3 and at 6 weeks using a ramp exercise test. Women in LOW completed repeated 60 second bouts of HIIT at 70-85% PPO; whereas, women in PER performed a different number of bouts and intensities each week. Results: There was a significant difference in relative (p=0.002; LOW: 21.5±3.2 vs. 22.5±3.2 mL/kg/min; PER: 17.3±2.41 vs. 18.0±2.2 mL/kg/min) and absolute (p=0.001; LOW: 2.1±0.3 vs. 2.2±0.3 L/min; PER: 1.9±0.4 vs. 2.0±0.3 L/min) VO2max across time, but no interaction (p=0.79 and p=0.53). There was no change in VT expressed as VT % VO2max (p=0.24) yet there was a group X time interaction (p=0.043). VT expressed in Watts was significantly different over time (p=0.001) but there was no group X time interaction (p=0.09). O2 pulse significantly increased from pre- to post-training (p=.003) but there was no time X group interaction (p=0.95). Conclusion: Although there were no significant differences between regimes, HIIT elicits significant changes in VO2max, O2 pulse and VT in sedentary women with obesity, which are improve health status.
The Effects of Low Volume HIIT Vs. Periodized HIIT on Changes in Body Composition and Muscular Strength in Sedentary Women with Obesity
The Effects of Low Volume HIIT Vs. Periodized HIIT on Changes in Body Composition and Muscular Strength in Sedentary Women with Obesity - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Effects of Low Volume HIIT Vs. Periodized HIIT on Changes in Body Composition and Muscular Strength in Sedentary Women with Obesity write by Annie B. De La Rosa. This book was released on 2018. The Effects of Low Volume HIIT Vs. Periodized HIIT on Changes in Body Composition and Muscular Strength in Sedentary Women with Obesity available in PDF, EPUB and Kindle. The purpose of this study was to determine the effects of two high intensity interval training (HIIT) regimens (low volume (LOW) and periodized (PER)) on changes in body composition and muscular strength in sedentary, obese women. METHODS: Seventeen women (age = 37.5 ± 10.5 yr.; BMI = 39.1 ± 4.3 kg/m2) were randomized into LOW or PER and completed a 6-week exercise intervention. Participants completed three training sessions/week, two in the laboratory and one on their own either at home or in a gym. Pre- and post-training, body composition and muscular strength of the knee extensors and flexors were assessed via air displacement plythesmography and isokinetic dynamometry, respectively. RESULTS: There were no significant changes (p > 0.05) in body mass, fat mass, or waist-to-hip ratio in response to training. There was a significant change in percent body fat (p = 0.03), percent fat free mass (p = 0.03), and absolute fat free mass (p = 0.03) in LOW, but not PER in response to training, yet no group X time interaction (p >0.05). There were no significant changes in peak knee extension torque (p = 0.36) or peak knee flexion torque (p = 0.75) in response to training and no group X time interaction (p >0.05). CONCLUSIONS: Low volume HIIT improved body composition, while periodized only maintained body composition in sedentary, obese women. Neither regimen improved muscular strength, which suggests that obese women desiring to increase strength should initiate more intense HIIT or partake in formal resistance training.
Effects of High Intensity Interval Training on Cardiorespiratory Fitness and Body Composition in Women
Effects of High Intensity Interval Training on Cardiorespiratory Fitness and Body Composition in Women - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Effects of High Intensity Interval Training on Cardiorespiratory Fitness and Body Composition in Women write by Rachel Marie Dykstra. This book was released on 2021. Effects of High Intensity Interval Training on Cardiorespiratory Fitness and Body Composition in Women available in PDF, EPUB and Kindle. Background: A growing body of literature indicates that women, in comparison to men, report significantly more barriers to exercise, often times related to perceived lack of time due to their social roles (e.g. family responsibility, childcare). Therefore, it has been considered that exercise programs that require less time commitments would be more attractive for women to alleviate this concern. Objective: This review was conducted to comprehensively understand the present literature surrounding women and such a time-efficient protocol: high intensity interval training (HIIT). The primary aim was to determine the impact of HIIT on both cardiorespiratory fitness (CRF) and body composition. The secondary aim was to identify what variables, if any, influence the effect of HIIT on changes in CRF and body composition. Methods: A database search was conducted in MEDLINE (PubMed), CENTRAL (Cochrane), and ESCO (SPORTdiscus) to obtain all peer-reviewed publications up until November 2020. Studies were included if HIIT protocols were aerobic-based, a minimum of two weeks in duration, participants were between the ages of 18-65 years and free from cardiovascular, metabolic, or renal disease and cancers. Comparisons were made for changes in maximal or peak oxygen consumption (VO2max or VO2peak), fat mass (FM), fat-free mass (FFM), and body fat percentage (BF%). Results: 41 studies were included in this review, involving a total of 628 female subjects who were predominantly younger (582 subjects between ages 18-35 years) and overweight (body mass index ranging from 20.3-35.7 kg-m-2). Exercise intervention duration ranged from 2-15 weeks (7.8±3.7 weeks), utilizing between 2-5 sessions (3.1±0.4 visits) per week. Of the 37 studies with CRF as an outcome measures, 34 reported improvements. 35 studies reported pre- and post-intervention assessments surrounding body composition. 14 determined significant improvements in BF% and 12 studies reported a significant decrease in FM, six showed significant increases in FFM. Conclusion: It is suggested that HIIT can significantly improve CRF in women, irrespective of age, training status, BMI, and training frequency. However, exercise intervention duration, in conjunction with the appropriate intensity of exercise may influence the improvements. HIIT interventions that are shorter in duration (≤7 week) should consider utilizing intensities >100% VO2max (supramaximal) to elicit improvements in CRF. Intensities ranging from 85-95% VO2max are sufficient to augment CRF in interventions exceeding 7 weeks. The effect of HIIT on body composition is less clear. Excess post-exercise oxygen consumption (EPOC) and energy expenditure greatly exceeding 1000 MET-minutes per week may account for reductions in FM. However, there is no guarantee that these reasons alone account for all reductions in FM. There were improvements in FFM across very few studies (n = 6). It is suggested that aerobic-based HIIT be supplemented with resistance training to generate superior improvements in FFM. Furthermore, lack of controlled diet across all studies makes it difficult to determine if caloric intake could account for any changes in body composition. While HIIT may be an effective and time-efficient protocol for women, future research should focus on ecological validity and women’s adherence to such vigorous training, specifically within non-athletic and sedentary subgroups.
Effect of a Single Low Volume High-intensity Interval Training Bout on Excess Post-exercise Oxygen Consumption Levels Between Obese and Non-obese Adults
Effect of a Single Low Volume High-intensity Interval Training Bout on Excess Post-exercise Oxygen Consumption Levels Between Obese and Non-obese Adults - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Effect of a Single Low Volume High-intensity Interval Training Bout on Excess Post-exercise Oxygen Consumption Levels Between Obese and Non-obese Adults write by Thomas J. Madden. This book was released on 2018. Effect of a Single Low Volume High-intensity Interval Training Bout on Excess Post-exercise Oxygen Consumption Levels Between Obese and Non-obese Adults available in PDF, EPUB and Kindle. ABSTRACT: The purpose of the current study was to determine if obesity affects the excess post-exercise oxygen consumption (EPOC) values and caloric expenditure (CE) after a single bout of high intensity interval exercise (HIIE). Twenty adults (12 men and 8 women) were divided into two groups based on BMI: obese (OB) or non-obese (NOB). All subjects completed a single 20 min HIIE bout on a Velotron cycle. Intervals were 1 min of exercise at 85-85% HRmax followed by 1 min of rest. Oxygen consumption was measured post exercise to estimate EPOC and CE. There was a significant difference in the absolute total EPOC (L) between OB (M = 3.80, SD = 1.27) and NOB (M = 2.40, SD = 0.88) groups, t(18) = 2.88, p = .01, d = -1.29. There was a significant difference in CE (kcal) between OB (M = 19.03, SD = 6.35) and NOB (M = 11.99, SD = 4.41) groups; t(18) = 2.87, p = .010, d = -1.29. No significant mean differences were found in time (min) spent in EPOC and absolute magnitude (L/min) between OB and NOB. A medium effect size was found with time spent in EPOC (d = .64) and the absolute magnitude (d = .69) between NOB and OB groups. Differences between OB and NOB groups may be attributed to the total mass of an individual while relative values seem to be similar between groups.
Whole-body Electromyostimulation: A Training Technology to Improve Health and Performance in Humans?
Whole-body Electromyostimulation: A Training Technology to Improve Health and Performance in Humans? - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Whole-body Electromyostimulation: A Training Technology to Improve Health and Performance in Humans? write by Wolfgang Kemmler. This book was released on 2020-07-08. Whole-body Electromyostimulation: A Training Technology to Improve Health and Performance in Humans? available in PDF, EPUB and Kindle.
