scholarly journals The Effect of High-Intensity Interval Training Periods on Morning Serum Testosterone and Cortisol Levels and Physical Fitness in Men Aged 35–40 Years

2021 ◽  
Vol 10 (10) ◽  
pp. 2143
Author(s):  
Tadeusz Ambroży ◽  
Łukasz Rydzik ◽  
Zbigniew Obmiński ◽  
Wiesław Błach ◽  
Natalia Serafin ◽  
...  
Keyword(s):  
Physical Activity ◽  
Physical Fitness ◽  
Training Program ◽  
High Intensity ◽  
Interval Training ◽  
Control Group ◽  
High Intensity Interval Training ◽  
Cortisol Levels ◽  
High Intensity Interval ◽  
Experimental Group

Background: Intensive physical activity largely modulates resting concentrations of blood cortisol (C) and testosterone (T) and their molar ratio, which is defined as the anabolic–catabolic index and expressed as T/C × 102. The aim of the study is to evaluate the effect of the author’s high-intensity training program on T, C, T/C × 102, and selected physical fitness indices in men between 35 and 40 years of age. Methods: The experiment was conducted on a group of 30 healthy men, divided into control and experimental groups. The experimental group followed a high-intensity 8-week training program, which included three sessions per week, each of them lasting 1 h and consisting of intensive-interval exercises followed by strength circuit exercises. The controls did not change their previous recreational physical activity. T, C, and T/C × 102 were measured before and after the experiment for all participants. Physical performance was examined using a standardized laboratory exercise test to determine maximal oxygen uptake (VO2max). Results: There were statistically significant increases in T (by 36.7%) and T/C × 102 (by 59%), while C somewhat dropped (by 12%) in the experimental group. No changes in the hormonal indices were found in the control group. After completing the experimental training, there were no statistically significant changes in aerobic capacity, but it improved muscle strength in the men studied. Conclusions: High-intensity interval training, continued over an 8-week period, modulates (significantly and positively) the balance between testosterone and cortisol levels and improves physical capacity in men aged 35–40 years.

scholarly journals Effects of High Intensity Interval Training on Executive Function in Children Aged 8–12 Years

2019 ◽  
Vol 16 (21) ◽  
pp. 4127 ◽  
Author(s):  
Nobuaki Tottori ◽  
Noriteru Morita ◽  
Kenji Ueta ◽  
Satoshi Fujita
Keyword(s):  
Executive Function ◽  
Physical Fitness ◽  
High Intensity ◽  
Digit Span ◽  
Interval Training ◽  
Control Group ◽  
High Intensity Interval Training ◽  
Tower Of Hanoi ◽  
Positive Effects ◽  
High Intensity Interval

This study investigated the effects of a high intensity interval training (HIIT) program on both physical fitness and executive functions in children. Fifty-six children aged 8–12 years participated in this study, and were divided into a HIIT group and a control group. The HIIT group performed three sessions of the 8- to 10-min HIIT program per week for 4 weeks. Before and after the intervention, 20-m shuttle runs, sit-ups, and standing long jumps were assessed as test of physical fitness. In addition, the executive function was assessed using the digit span forward (DSF) test, digit span backward (DSB) test, and Tower of Hanoi test. Only the HIIT group experienced significant improvement when completing the 20-m shuttle run (p = 0.042) and sit-ups (p < 0.001). Regarding executive function, the number of correct answers in DSB test significantly increased only in the HIIT group (p = 0.003). However, the standing long jump, DSF, and the Tower of Hanoi test performance did not change after intervention. The findings of the present study suggest that HIIT has positive effects on a core executive function such as working memory in addition to components of the physical fitness such as cardiorespiratory endurance and muscular endurance.

High-Intensity Interval Training for Improvement of Overhand Throwing Velocity

2014 ◽  
Vol 19 (1) ◽  
pp. 36-40 ◽  
Author(s):  
Meaghan E. Maddigan ◽  
David G. Behm ◽  
Glen R. Belfry
Keyword(s):  
Oxygen Consumption ◽  
Outcome Measures ◽  
High Intensity ◽  
Training Session ◽  
Interval Training ◽  
Control Group ◽  
High Intensity Interval Training ◽  
Overhand Throwing ◽  
High Intensity Interval ◽  
Experimental Group

Context:High intensity interval training (HIIT) has been shown to improve muscle power and endurance, as well as aerobic power.Objective:To assess the effects of HIIT that utilizes resistive elastic bands to improve overhand throwing velocity.Participants:Healthy female volunteers (n = 13) ranging in age from 18–29 years.Interventions:Participants were randomly assigned to either a control group or an experimental group that exercised 3 days per week for 3 weeks. Each training session involved performance of 5 sets of 20 throwing motions against elastic band resistance, which was performed by both extremities.Main Outcome Measures:Maximal oxygen consumption was measured during performance of a graded exercise test that utilized an upper extremity cycle ergometer. A radar gun was used to assess peak throwing velocity and the extent to which throwing velocity was sustained during performance of a 20-throw endurance test.Results:After completing the training, the experimental group exhibited faster peak throwing velocity (61.6 ± 6.6 km/hr to 63.2 ± 8.6 km/hr) and a reduced fatigue index (1.18 ± 0.16 to 1.01 ± 0.02). Training also resulted in a 14% improvement in maximum oxygen consumption (1.40 ± 0.46 L/min to 1.60 ± 0.49 L/ min) and longer time to fatigue (9.99 ± 1.84 min to 11.43 ± 2.29 min).Conclusion:The high-intensity interval training program was effective for improvement of overhand throwing performance.

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 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

scholarly journals High-intensity interval training improves specific performance in taekwondo athletes

2020 ◽  
Vol 15 (1) ◽  
pp. 4
Author(s):  
Diego Enrique Aravena Tapia ◽  
Valeria Roman Barrera ◽  
Jonatas Ferreira Da Silva Santos ◽  
Emerson Franchini ◽  
Pablo Valdés Badilla ◽  
...  
Keyword(s):  
Short Duration ◽  
High Intensity ◽  
Interval Training ◽  
Repeated Measurements ◽  
Control Group ◽  
Anaerobic Performance ◽  
Training Methods ◽  
High Intensity Interval Training ◽  
High Intensity Interval ◽  
Experimental Group

Specific training methods is an important aspect in the preparation of taekwondo athletes.<strong> </strong>The purpose of this study was to investigate the effect of a short-duration high-intensity interval training (HIIT) program with specific taekwondo techniques on anaerobic performance.<strong> </strong>Twelve taekwondo athletes were randomized into a control (<em>n</em>=6) or experimental groups (<em>n</em>=6). The experimental protocol consisted of 3 blocks of 6 sets of 10s all-out effort, with 10s passive recovery between sets and 1-min rest interval between blocks, conducted 3 days per week during 4-weeks. A three-way analysis of variance (ANOVA) (group, set and moment) with repeated measurements in the two last factors was conducted to compare the performance during each set of the Frequency Speed Kick Test (FSKT), and an ANOVA two-way (group and moment) with repeated measurements was used to compare the total number of kicks and kick decrement index (KDI). Both groups maintained their regular taekwondo training, which was exactly the same. Before and after the training program the athletes performed the FSKT.<strong> </strong>The experimental group increased (<em>p</em>&lt;0.01) performance in each of the five sets of the FSKT and in the total number of kicks (<em>p</em>&lt;0.001). No statistical difference was observed in the control group after 4-weeks or between the control and experimental group in any moment. A short-duration HIIT program with specific taekwondo techniques improved anaerobic performance measured through the FSKT. However, the fatigue index did not change.

scholarly journals The effect of high intensity interval training on flexibility and anaerobic powerYüksek yoğunluklu interval antrenmanın esneklik ve anaerobik kapasite üzerine etkisi

2017 ◽  
Vol 14 (4) ◽  
pp. 4088 ◽  
Author(s):  
Kadir Baynaz ◽  
Kursat Acar ◽  
Engin Çinibulak ◽  
Taner Atasoy ◽  
Ahmet Mor ◽  
...  
Keyword(s):  
Body Weight ◽  
High Intensity ◽  
Repeated Measures ◽  
Anaerobic Power ◽  
Interval Training ◽  
Control Group ◽  
High Intensity Interval Training ◽  
High Intensity Interval ◽  
Sedentary Women ◽  
Experimental Group

The aim of this study is to examine the effect of high intensity training with their own body weight on flexibility and anaerobic capacity. A total of 20 sedentary women (10 control and 10 experimental groups) participated in the study voluntary, with a mean age of 18.37 ± 1.43 years. The experimental group completed high intensity interval training 3 times weekly for 6 weeks. Between the 1st and 3rd weeks burpees, plank, jumping jacks, push-up movements and between 4th and 6th weeks box jump, crunches, step ups, mountain climber movements were applied to experimental group according to  20 sec loading and 10 sec resting principle.  The control group did not participate any exercise during this time. Body weight, flexibility and anaerobic power measurements were taken before and after 6 weeks of high intensity interval training. The data were analyzed using the two way repeated measures of ANOVA. The level of significance was determined as p<0.05. At the end of the study, there was no significant difference in the control group parameters. In the experimental group, significant differences were found in the flexibility, body weight and anaerobic power values after the high intensity interval training (p<0.05). For sedentary women who are exercising for health purposes, the Tabata Protocol applied with their own body weight, can be recommended as a high intensity interval training method in terms of improving the parameters mentioned in the study.Extended English abstract is in the end of Full Text PDF (TURKISH) file. ÖzetÇalışmanın amacı, 6 hafta süresince kendi vücut ağırlığıyla yapılan yüksek yoğunluklu antrenmanların esneklik ve anaerobik kapasite üzerine etkisinin incelenmesidir. Çalışmaya yaş ortalaması 18,37± 1,43 yıl olan 10’u kontrol, 10’u deney grubu olmak üzere toplam 20 gönüllü sedanter kadın katılmıştır. Deney grubuna,  6 hafta süresince haftada 3 gün yüksek şiddetli interval antrenman yaptırılmıştır.  1. ve 3. haftalar arasında ikişer kez sırayla burpees, plank, jumping jacks, push-up hareketleri,   4. ve 6. haftalar arasında da ikişer kez sırayla box jump, crunches, step ups, mountain climber hareketleri 20 saniye yüklenme 10 saniye dinlenme prensibiyle uygulanmıştır. Kontrol gurubu bu süre içerisinde herhangi bir egzersiz yapmamıştır. 6 haftalık antrenmana başlamadan önce ve 6 haftanın bitiminden sonra deneklerin vücut ağırlığı, esneklik ve anaerobik güç ölçümleri alınmıştır. Esneklik, anaerobik kapasite ve vücut ağırlığı skorlarındaki değişim iki yönlü varyans analizi (two way repeated measures of ANOVA) ile yapılmıştır. Çalışmanın istatistiksel anlamlılık seviyesi p<0,05 olarak belirlenmiştir. Çalışma sonunda kontrol grubu parametrelerinde anlamlı fark yokken, yüksek şiddetli interval antrenman yapan sedanter kadınların esneklik, vücut ağırlığı ve anaerobik güç değerlerinde anlamlı fark bulunmuştur (p<0.05). Sağlık amaçlı egzersiz yapan sedanterlere, çalışmada belirtilen parametreleri geliştirmeleri açısından yüksek şiddetli interval antrenman yöntemi olarak kendi vücut ağırlığı ile yapılan Tabata Protokolü önerilebilir.

48-Hour Effects of Monitored Cooperative High-Intensity Interval Training on Adolescent Cognitive Functioning

2019 ◽  
Vol 126 (2) ◽  
pp. 202-222 ◽  
Author(s):  
Alberto Mezcua-Hidalgo ◽  
Alberto Ruiz-Ariza ◽  
Sara Suárez-Manzano ◽  
Emilio J. Martínez-López
Keyword(s):  
Physical Activity ◽  
Cognitive Functioning ◽  
High Intensity ◽  
Vigorous Physical Activity ◽  
Interval Training ◽  
Control Group ◽  
High Intensity Interval Training ◽  
School Day ◽  
Cognitive Benefits ◽  
High Intensity Interval

Physical activity has been positively related to better cognitive performance though the effects of varied exercise type and intensity and the duration of cognitive benefits are unclear. This study analyzed the effect of 16 minutes of monitored cooperative high-intensity interval training (monitored C-HIIT) at the start of the school day, on various cognitive variables over the next 24–48 hours. We randomly assigned 158 participants either to a control group ( n = 81) that engaged only in static stretching or to an experimental group ( n = 77) that performed monitored C-HIIT. We assessed cognitive functioning before the exercise, immediately afterward, and for five follow-up time points over the next two days (i.e., at 2, 3, 4, 24, and 48 hours). We analyzed age, sex, body mass index, and moderate-to-vigorous physical activity as potential confounder variables. Adolescents in the monitored C-HIIT group increased selective attention by 17.39% during the next hour ( p = .015) and increased concentration by 20.31% and 15.26% during the first ( p = .022) and second ( p = .059) subsequent hours, respectively. This positive short-term benefit of monitored C-HIIT during immediate subsequent hours is an important finding with implications for the school curricula and schedule.

scholarly journals EFFECTS OF A 12 WEEK RECREATIONAL FOOTBALL AND HIGH-INTENSITY INTERVAL TRAINING ON PHYSICAL FITNESS IN OVERWEIGHT CHILDREN

2018 ◽  
pp. 435
Author(s):  
Nemanja Cvetković ◽  
Emilija Stojanović ◽  
Nenad Stojiljković ◽  
Dušan Nikolić ◽  
Zoran Milanović
Keyword(s):  
Physical Education ◽  
Physical Fitness ◽  
High Intensity ◽  
Biochemical Parameters ◽  
Interval Training ◽  
Control Group ◽  
Overweight Children ◽  
High Intensity Interval Training ◽  
High Intensity Interval ◽  
Intensity Of Exercise

The purpose of this study was to determine the effects of a 12 week recreational football and high-intensity interval training (HIIT) on physical fitness in overweight children. Forty-two overweight and obese boys aged 11-13 were randomly divided into three groups: HIIT group (n = 14), recreational football (n = 14) and a control group that attended regular physical education classes (n = 14). Physical fitness components were measured at baseline and after 12 weeks of training at the same time of the day and under similar conditions, including: countermovement jump (CMJ), sprint over 10 and 30 m, flexibility and biochemical parameters (leukocytes, erythrocytes, hemoglobin, glucose, total cholesterol, triglycerides). HIIT group increased explosive power of lower extremities by 7.16% (small ES), while the recreational football group recorded slightly less increase of 6.57% (small ES). HIIT led to a statistically significant increase (p<0.05) in the number of erythrocytes in the blood (8.90%). The recreational football program influenced the improvement of results in variables spreading lying on the back (6.21%) and the number of erythrocytes (↑ 9.11%). Twelve-weeks of recreational football and HIIT can lead to positive changes in muscle fitness, flexibility and biochemical parameters in overweight and obese children. Compared to the experimental groups, the control group noted minor changes in the aforementioned variables, which indicates the lack of intensity of exercise programs in regular classes of physical education.

scholarly journals Effects of a High-Intensity Interval Training Program on Body Composition and Physical Fitness in Female Field Hockey Players

2021 ◽  
Vol 39 (5) ◽  
pp. 1323-1330
Author(s):  
Yaquelina Quezada-Muñoz ◽  
Pablo Rodríguez-Artigas ◽  
Pablo Aravena-Sagardia ◽  
Mauricio Barramuño ◽  
Tomás Herrera-Valenzuela ◽  
...  
Keyword(s):  
Body Composition ◽  
Physical Fitness ◽  
Training Program ◽  
High Intensity ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Field Hockey ◽  
Hockey Players ◽  
High Intensity Interval
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