scholarly journals SWEAT RATE MEASUREMENTS AFTER HIGH INTENSITY INTERVAL TRAINING USING BODY WEIGHT

2018 ◽  
Vol 24 (3) ◽  
pp. 197-201
Author(s):  
Alexandre Fernandes Machado ◽  
Alexandre Lopes Evangelista ◽  
João Marcelo de Queiroz Miranda ◽  
Cauê Vazquez La Scala Teixeira ◽  
Gerson dos Santos Leite ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
High Intensity ◽  
Sweat Rate ◽  
Interval Training ◽  
Activity Level ◽  
High Intensity Interval Training ◽  
Sweating Rate ◽  
Single Bout ◽  
High Intensity Interval

ABSTRACT Introduction: Physical activity raises body temperature, increases the sweat rate and accelerates fluid loss during exercise, thereby impairing exercise performance. However, studies using the high intensity interval training (HIIT) approach and its effects on rates of perspiration and hydration are still inconclusive. Objectives: The objective of this study was to assess sweating and water loss during an HIIT workout session, using body weight, with healthy college students. Methods: Twenty male individuals (31 ± 07 years) were split into two groups: Active group (AG) and Inactive group (IG). The HIIT workout protocol, using body weight, consisted of a single bout with 1:1 stimuli, being: 30” “all out” intensity, involving jumping jack, mountain climber, burpee and squat jump exercises; and 30” of passive recovery, totaling 20 minutes of exercises. For comparison purposes, after 48 hours all the individuals underwent the continuous running protocol with intensity corresponding to 75% of maximum heart rate for 40 minutes. The intensity of the session was monitored continuously, at each 30”, using the perceived exertion scale for both protocols. To ensure euhydration status, all individuals ingested 500 ml of water 120 minutes before the training session. Results: Significant differences (p= 0.01) were found in body mass after HIIT compared to the Moderate session in both Active (HIIT: -0.60 ± 0.29 kg, Moderate: -0.26 ± 0.12 kg) and Inactive (HIIT: -0.92 ± 0.30 kg, Moderate: -0.26 ± 0.26 kg) groups, however, no differences were found between groups. Absolute sweating rate values comparing moderate and HIIT single bout in Inactive (Moderate: 10.55 ± 10.59 ml/min; HIIT: 28.90 ± 13.88 ml/min) and Active (Moderate: 9.60 ± 4.52 ml/min; HIIT: 26.00 ± 15.06 ml/min) groups were different between types of exercise, but not between groups. Conclusions: The sweating rate is influenced by the intensity of the exercise, being higher after HIIT than after a moderate exercise session. However, the sweating rate variation is not affected by the subjects’ physical activity level. Level of Evidence II; Diagnostic studies-Investigating a diagnostic test.

scholarly journals High Intensity Interval Training Does Not Have Compensatory Effects on Physical Activity Levels in Older Adults

2020 ◽  
Vol 17 (3) ◽  
pp. 1083
Author(s):  
Paolo Bruseghini ◽  
Enrico Tam ◽  
Elisa Calabria ◽  
Chiara Milanese ◽  
Carlo Capelli ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Energy Expenditure ◽  
High Intensity ◽  
Sedentary Time ◽  
Interval Training ◽  
Activity Level ◽  
Moderate Intensity ◽  
High Intensity Interval Training ◽  
High Intensity Interval

Background: Exercise has beneficial effects on older adults, but controversy surrounds the purported “compensatory effects” that training may have on total daily physical activity and energy expenditure in the elderly. We wanted to determine whether 8 weeks of high-intensity interval training (HIIT) induced such effects on physical activity and energy expenditure in healthy, active older adult men. Methods: Twenty-four healthy elderly male volunteers were randomized to two groups. The experimental group performed HIIT (7 × 2 min cycling repetitions, 3 d/w); the control group performed continuous moderate-intensity training (20–30 min cycling, 3 d/w). Physical activity and energy expenditure were measured with a multisensor activity monitor SenseWear Armband Mini. Results: During HIIT, significant changes were observed in moderate and vigorous physical activity, average daily metabolic equivalents (METs), physical activity level, and activity energy expenditure (p < 0.05) but not in total energy expenditure. Sleep and sedentary time, and levels of light physical activity remained constant during the training period. Conclusions: The findings suggest that HIIT induced no compensatory effect: HIIT does not adversely affect lifestyle, as it does not reduce daily energy expenditure and/or increase sedentary time.

scholarly journals High-intensity Interval Training Improves Inflammatory Mediators in Obese Women: Based on the Study of the UCP2 Ala55Val Gene

2021 ◽  
Vol 9 (A) ◽  
pp. 871-875
Author(s):  
Susiana Candrawati ◽  
Emy Huriyati ◽  
Zaenal Muttaqien Sofro ◽  
Lantip Rujito ◽  
Aulia Nury Faza ◽  
...  
Keyword(s):  
Body Weight ◽  
Inflammatory Mediators ◽  
High Intensity ◽  
Interval Training ◽  
T Test ◽  
Wilcoxon Test ◽  
Obese Women ◽  
High Intensity Interval Training ◽  
Before And After ◽  
High Intensity Interval

Background: Increased inflammatory mediators in obesity are associated with metabolic syndrome. Exercise is an effective effort to reduce the incidence of obesity. The High-Intensity Interval Training (HIIT) program is an exercise which include combination of high-intensity exercise and rest periods. The decrease in body fat levels due to physical training will further affect inflammatory mediators such as IL6 and TNFα. Besides training factor, genetic also play a role on obesity. One of the genes that influence obesity is the UCP2 Ala55Val gene. Objectives: This research aims to see the effect of HIIT on the levels of inflammatory mediators in obese patients based on the study of the Ala55Val UCP2 gene. Methods: This study was a Quasi-Experimental Pre and Post Design Without Control Group. Thirty obese women (BMI≥25 kg/m2) were given High-Intensity Interval Training (HIIT) as an intervention by comparing the data before and after the intervention. The training intervention was conducted for 12 weeks, consisting of two weeks of adaptation and ten weeks of HIIT intervention. The body weight, BMI and inflammatory mediators (TNFα and IL 6) before and after the intervention were analyzed using the Dependent T-Test and Wilcoxon Test as a nonparametric test. Independent T-Test and Mann Whitney test used to determine the effect of the UCP2 Ala55Val gene on changes in body weight, BMI and the inflammatory mediator. The test results were considered significantly different if p<0.05. Results: Bivariate analysis using Dependent T-Test showed that HIIT significantly improved Body Weight, BMI and IL6 with p=0.0001. Wilcoxon Test showed that HIIT significantly improved TNFα with p=0.0001. Independent T-Test showed no difference in body weight (p=0.719), BMI (p=0.663) and TNFα (p=0.264) improvement in the two genotypes of the UCP2 Ala55Val gene. Mann Whitney Test showed no difference in IL6 (p=0.288) improvement in the two genotypes of the UCP2 Ala55Val gene. Conclusion: The research concluded that the 12-week HIIT interventions improved inflammatory mediators by reducing IL6 and TNFα in obese women. There was no effect of genetic variation on the response to training intervention.

scholarly journals Light-intensity and high-intensity interval training improve cardiometabolic health in rats

2016 ◽  
Vol 41 (9) ◽  
pp. 945-952 ◽  
Author(s):  
Romeo B. Batacan ◽  
Mitch J. Duncan ◽  
Vincent J. Dalbo ◽  
Kylie J. Connolly ◽  
Andrew S. Fenning
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Light Intensity ◽  
High Intensity ◽  
Cardiometabolic Risk ◽  
Interval Training ◽  
Cardiometabolic Risk Factors ◽  
Cardiac Conduction ◽  
High Intensity Interval Training ◽  
High Intensity Interval

Physical activity has the potential to reduce cardiometabolic risk factors but evaluation of different intensities of physical activity and the mechanisms behind their health effects still need to be fully established. This study examined the effects of sedentary behaviour, light-intensity training, and high-intensity interval training on biometric indices, glucose and lipid metabolism, inflammatory and oxidative stress markers, and vascular and cardiac function in adult rats. Rats (12 weeks old) were randomly assigned to 1 of 4 groups: control (CTL; no exercise), sedentary (SED; no exercise and housed in small cages to reduce activity), light-intensity trained (LIT; four 30-min exercise bouts/day at 8 m/min separated by 2-h rest period, 5 days/week), and high-intensity interval trained (HIIT, four 2.5-min work bouts/day at 50 m/min separated by 3-min rest periods, 5 days/week). After 12 weeks of intervention, SED had greater visceral fat accumulation (p < 0.01) and slower cardiac conduction (p = 0.04) compared with the CTL group. LIT and HIIT demonstrated beneficial changes in body weight, visceral and epididymal fat weight, glucose regulation, low-density lipoprotein cholesterol, total cholesterol, and mesenteric vessel contractile response compared with the CTL group (p < 0.05). LIT had significant improvements in insulin sensitivity and cardiac conduction compared with the CTL and SED groups whilst HIIT had significant improvements in systolic blood pressure and endothelium-independent vasodilation to aorta and mesenteric artery compared with the CTL group (p < 0.05). LIT and HIIT induce health benefits by improving traditional cardiometabolic risk factors. LIT improves cardiac health while HIIT promotes improvements in vascular health.

School-Based High-Intensity Interval Training Programs for Promoting Physical Activity and Fitness in Adolescents: A Systematic Review

2021 ◽  
pp. 1-13
Author(s):  
André Filipe Paulino da Silva Bento ◽  
Luis Carrasco Páez ◽  
Armando Manuel de Mendonça Raimundo
Keyword(s):  
Physical Activity ◽  
Physical Education ◽  
Physical Fitness ◽  
Effect Size ◽  
High Intensity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Moderate Effect Size ◽  
Moderate Effect ◽  
High Intensity Interval

Purpose: This review aimed to evaluate the utility of high-intensity interval training (HIIT) programs integrated into physical education classes. Method: Searches of electronic databases from January 2008 to March 2020. Inclusion criteria: Applied to adolescents aged 10–19 years; applied in school settings; reported results on physical fitness, physical activity (PA), and motivation; at least for 4 weeks; and randomized controlled trials. Studies with adolescents with physical or intellectual limitations were excluded, as well as other interventions parallel to HIIT. Results: Fourteen studies were included. All works present significant improvements in physical fitness and PA. Improvements in body composition recorded, at most, a moderate effect size. HIIT is presented as a powerful stimulus on cardiorespiratory fitness. Improvements in PA registered, a least, a moderate effect size. Conclusions: HIIT in the school context has great potential in improving physical fitness and PA in adolescents. HIIT efficiency (about 10 min) reflects the wide applicability that these protocols can have in physical education classes and great adaptation to the facilities.

scholarly journals Effects of Online Bodyweight High-Intensity Interval Training Intervention and Health Education on the Mental Health and Cognition of Sedentary Young Females

2021 ◽  
Vol 18 (1) ◽  
pp. 302
Author(s):  
Yao Zhang ◽  
Beier Zhang ◽  
Liaoyan Gan ◽  
Limei Ke ◽  
Yingyao Fu ◽  
...  
Keyword(s):  
Mental Health ◽  
Physical Activity ◽  
Cognitive Function ◽  
Health Education ◽  
High Intensity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Young Females ◽  
Post Test ◽  
High Intensity Interval

This study aimed to assess the effectiveness of an online high-intensity interval training (HIIT) intervention and health education on the behaviors, mental health, and cognitive function of sedentary young females. A single-blinded, six-week, randomized controlled pilot trial involving 70 sedentary young Chinese females, aged 18–30 years, was conducted. An intervention group (IG) (n = 33) underwent a HIIT intervention and health education, while a waitlist group (WG) (n = 37) only received health education. In pre-, mid-, and post-tests, both groups filled out questionnaires about physical activity, sedentary behavior, and mental health. Cognitive functions were assessed at the pre- and post-tests by computer-administered cognitive tests. A mixed-effect model with repeated measures was used to analyze outcomes of interest. The retention rate of the IG and WG was 100% and 78.38%, respectively. The IG were found to have significantly increased rates of moderate-to-vigorous physical activity (MVPA) (Mdiff = 940.61, p < 0.001, 95% confidence interval (95% CI): 576.67, 1304.55) from pre-test to post-test, while the WG demonstrated a more marked reduction in sedentary time (Mdiff = −73.02, p = 0.038, 95% CI: −141.90, −4.14) compared with the IG in the post-test. Moreover, anxiety and stress levels were shown to significantly reduce in the IG over the six-week period (Mdiff = −4.73, p = 0.002, 95% CI: −7.30, −2.15 and Mdiff = −5.09, p = 0.001, 95% CI: −8.29, −1.89, respectively). In addition, we observed a significant improvement in verbal ability (p = 0.008, ηp2 = 0.19) following the HIIT intervention and effects of the interaction with time on processing speed (p = 0.050, ηp2 = 0.10) and episodic memory (p = 0.048, ηp2 = 0.11). Moreover, the IG had better global cognitive performance than the WG in the post-test (Mdiff = 8.28, p = 0.003, 95% CI: 3.06, 13.50). In summary, both an online bodyweight HIIT intervention combined with health education, or health education alone, can effectively improve health-related behaviors, but the behavioral consequences may differ based on the emphasis of different intervention modalities. Furthermore, the “bodyweight HIIT plus health education” modality might be a more promising online intervention strategy to mitigate against negative emotions and improve cognitive function.

scholarly journals High Intensity Interval Training (HIIT) as a Potential Countermeasure for Phenotypic Characteristics of Sarcopenia: A Scoping Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Lawrence D. Hayes ◽  
Bradley T. Elliott ◽  
Zerbu Yasar ◽  
Theodoros M. Bampouras ◽  
Nicholas F. Sculthorpe ◽  
...  
Keyword(s):  
Physical Activity ◽  
Physical Performance ◽  
Scoping Review ◽  
High Intensity ◽  
Muscle Function ◽  
Oldest Old ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Phenotypic Characteristics ◽  
High Intensity Interval

Background: Sarcopenia is defined as a progressive and generalized loss of skeletal muscle quantity and function associated predominantly with aging. Physical activity appears the most promising intervention to attenuate sarcopenia, yet physical activity guidelines are rarely met. In recent years high intensity interval training (HIIT) has garnered interested in athletic populations, clinical populations, and general population alike. There is emerging evidence of the efficacy of HIIT in the young old (i.e. seventh decade of life), yet data concerning the oldest old (i.e., ninth decade of life onwards), and those diagnosed with sarcopenic are sparse.Objectives: In this scoping review of the literature, we aggregated information regarding HIIT as a potential intervention to attenuate phenotypic characteristics of sarcopenia.Eligibility Criteria: Original investigations concerning the impact of HIIT on muscle function, muscle quantity or quality, and physical performance in older individuals (mean age ≥60 years of age) were considered.Sources of Evidence: Five electronic databases (Medline, EMBASE, Web of Science, Scopus, and the Cochrane Central Register of Controlled Trials [CENTRAL]) were searched.Methods: A scoping review was conducted using the Arksey and O'Malley methodological framework (2005). Review selection and characterization were performed by two independent reviewers using pretested forms.Results: Authors reviewed 1,063 titles and abstracts for inclusion with 74 selected for full text review. Thirty-two studies were analyzed. Twenty-seven studies had a mean participant age in the 60s, two in the 70s, and three in the 80s. There were 20 studies which examined the effect of HIIT on muscle function, 22 which examined muscle quantity, and 12 which examined physical performance. HIIT was generally effective in Improving muscle function and physical performance compared to non-exercised controls, moderate intensity continuous training, or pre-HIIT (study design-dependent), with more ambiguity concerning muscle quantity.Conclusions: Most studies presented herein utilized outcome measures defined by the European Working Group on Sarcopenia in Older People (EWGSOP). However, there are too few studies investigating any form of HIIT in the oldest old (i.e., ≥80 years of age), or those already sarcopenic. Therefore, more intervention studies are needed in this population.

scholarly journals The Effect of High Intensity Interval Training During Eight Weeks on Speed, Agility, and Acceleration in U19 Soccer Players

2021 ◽  
Vol 15 (8) ◽  
pp. 2390-2395
Author(s):  
Kadir Gökkurt ◽  
Ali Osman Kıvrak
Keyword(s):  
Body Weight ◽  
High Intensity ◽  
Interval Training ◽  
Soccer Players ◽  
Control Group ◽  
High Intensity Interval Training ◽  
Training Schedule ◽  
Post Test ◽  
High Intensity Interval ◽  
Experimental Group

Aim: The aim in this study was to examine the impact of eight-week high-Intensity interval training on speed, agility, and acceleration under 19 (U19) soccer players. Materials and methods: Healthy 22 soccer players from Anadolu Selçukspor U19 football team, one of the 2nd League teams of Turkish Football Federation (TFF), participated voluntarily in this study. The soccer players taking part in the study were separated randomly into two as the experimental and control groups. It was determined that the age average of the players constituting the experimental group was 18.36±0.51 years, their height average was 1.77±0.06 m, and their body weight average was 71.76±6.52 kg while the control group’s age average was 17.55±0.69 years, height average was 1.76±0.04 m, and body weight average was 70.85±5.40 kg. In the study, the soccer players forming the experimental group attended a high-intensity interval training program three days a week for eight weeks, in addition to their regular training. The players of the control group continued their normal training schedule. The soccer players taking part in the study are the players who practice five days a week and play one official match. Results: In this study, through the comparison of the values of the pre-test and post-test regarding the speed and acceleration property of the soccer players of the experimental group, it was found that their post-test values were better (p<0.05). In terms of their agility property, an improvement of pro-rata 0.008 was seen in the experimental group, while the improvement of the control group took place at the proportion of 0.004 (p<0.05). Conclusion: It has been observed that 8-week high-intensity interval training is statistically significant in the speed and acceleration of soccer players. We contemplate that the inclusion of the high-intensity interval training within the annual training schedule in the field of soccer will affect the performance of the soccer players during the season more positively. Keywords: Agility, Soccer; Interval Training, Acceleration, Speed

The Effect of Different Training Strategies Applied to Football Referees On Maxvo2 and Running Performance

2021 ◽  
Vol 15 (9) ◽  
pp. 3053-3057
Author(s):  
Bariş Baydemir ◽  
Hüseyin Ö. Yurdakul ◽  
Serkan Aksoy
Keyword(s):  
Body Weight ◽  
High Intensity ◽  
Interval Training ◽  
Average Height ◽  
Distributed Data ◽  
High Intensity Interval Training ◽  
Significant Difference ◽  
Post Test ◽  
High Intensity Interval ◽  
Normally Distributed

Aim: In this study, the effects of high-intensity interval training and sprint training on amateur football referees running performances expressed by the FIFA Athletic Test, Cooper Test and MAXVO2 were investigated. Methods: Football referees average age (23.88±2.10); average height (181.16±1.99) cm; body weight (74.42±2.46) kg and body mass index (22.66±.62) kg/m2 calculated. They were applied high-intensity interval training and speed training 3 days a week for 16 weeks. FIFA Athletic Test and Cooper Test were applied in the pre-test and post-test to see the effect of the training process on the referees. SPSS package program was used to analyze the data. "Paired Sample t-Test" was used for the normally distributed data, and the "Wilcoxon Signed Rows Test", which is a nonparametric test, for non-normally distributed data, and the effect size was calculated. The results were evaluated according to the significance level "0.01" and "0.05". Results: When the FIFA Athletic Test, Cooper Test, body weight, and BMI pre-test and post-test values were compared in football referees, a statistically significant difference was found between the first measurement and the second measurement (p<0.05). Conclusion: As a result of the study, it was observed that the training sessions had a positive effect on amateur football referees' running performances expressed by FIFA Athletic Test and Cooper Test and MAXVO2. This training program is recommended for the improvement of the degree-based running performances of amateur football referees. Keywords: Football referee, training, high-intensity interval running

Children's Enjoyment, Perceived Competency, and Moderate-to-vigorous Physical Activity During High-Intensity Interval Training in Physical Education

2020 ◽  
Author(s):  
Katie Burford ◽  
Kathryn Gillespie ◽  
John Bartholomew ◽  
Esbelle Jowers
Keyword(s):  
Physical Activity ◽  
Elementary School ◽  
Physical Education ◽  
High Intensity ◽  
Repeated Measures ◽  
Vigorous Physical Activity ◽  
Interval Training ◽  
Perceived Competence ◽  
High Intensity Interval Training ◽  
High Intensity Interval

Abstract Background: Little is known about children’s experience with high-intensity interval training (HIIT) during elementary school. Perceptions of enjoyment, perceived competence, and motivation are likely to drive long-term adherence and are, therefore, critical to understanding how HIIT might be implemented in this setting. The purpose of this study was to describe children’s physical activity levels, enjoyment, and perceived competency of HIIT activities within a Self-Determination Theory (SDT) framework (autonomy) in elementary school physical education (PE) classes. Methods: Participants were 402 children from a single, diverse elementary school (49.4% female, 59.6% Non-Hispanic white). Student enjoyment and perceived competency were collected following teacher- (non-autonomous) and student- led (autonomous) conditions. A sub-set of 201 children wore accelerometers to measure percent of time in moderate-to-vigorous physical activity (MVPA). This mixed factorial design was assessed through a series of repeated measures ANOVAs. Results: While children reported generally positive enjoyment and perceived competence in both condition (rating over 4.0 on a 5-point scale), children significantly enjoyed (d = 0.44) and felt more competent (d = 0.12) during the autonomous HIIT condition compared to the nonautonomous HIIT condition. In contrast, the percent of time in MPVA (d=1.09) was significantly lower in the autonomous condition. Conclusions: These data illustrate a challenging trade-off with the design of HIIT trials. Increasing autonomy through the inclusion of student choice increased enjoyment and perceived competence of HIIT, which are likely to improve adherence, but lowered physical activity intensity, which is likely to reduce impact.

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