HIGH INTENSITY INTERVAL TRAINING (HIIT) LEBIH MENINGKATKAN AMBANG ANAEROBIK DARIPADA STEADY STATE TRAINING PADA SISWA ANGGOTA KELOMPOK EKSTRAKURIKULER ATLETIK LARI JARAK PENDEK

Anaerobic threshold is the level of oxygen consumption where lactate concentration in blood increasing rapidly and systemic. One of exercises which increase anaerobic threshold is high intensity interval training (HIIT), with training load over anaerobic threshold in a short time and interspersed with active recovery. Another form is steady state training (SST), with training load approaching anaerobic threshold constantly. The purpose of this study to determine differences in the effectiveness of HIIT and SST among students member of short distance running athletic extracurricular groups in Denpasar. This study is pre test and post test experimental group design for 6 weeks and three times a week. Samples included 24 people divided into 2 groups. Group 1 HIIT with the training load of 95% maximum heart rate and Group 2 SST with the training load 80% of maximum heart rate. Measurement of anaerobic threshold by determining Heart Rate Deflection Point (HRDP) according to the Conconi track protocol. The results of the study in both groups obtained subjects 12-16 years old, male, body weight 50-65 kg, height 160-178 cm, and IMT from 16.33 to 22.27 kg / m2. Mean of anaerobic threshold before HIIT training 178.17 ± 2.368 x/minute, while after HIIT increased to 197.83 ± 3.460 x/minute. Mean of anaerobic threshold before SST 177.17 ± 1.586 x/minute, while after SST increased to 185.25 ± 1.288 x/minute. Test of different mean of anaerobic threshold pretest within Group 1 and Group 2 showed that p=0,237 (p>0,05). Test of different mean of increasing anaerobic threshold before and after training in Group 1 and Group 2 using Independent t-Test data test post two groups showed that p = 0.01 (p <0.05). Its concluded HIIT increase anaerobic threshold more than SST among students member of short distance running athletic extracurricular groups in Denpasar. Suggestions for this study are expected coaches able to provide proper training and monitoring methods HRDP evaluation in improving the achievement of athletes.

Download Full-text

The Effect of Two Types of High-Intensity Interval Training on Serum Value of GH and IGF-1 in Overweight Nurses

Asian Journal of Sports Medicine ◽

10.5812/asjsm.103135 ◽

2020 ◽

Vol 11 (4) ◽

Author(s):

Sahar Avazpour ◽

Jamal Fazell Kalkhoran ◽

Karamat Avazpour ◽

Fatemeh Mohseni

Keyword(s):

High Intensity ◽

Interval Training ◽

Control Group ◽

High Intensity Interval Training ◽

Significant Difference ◽

Group 2 ◽

High Intensity Interval ◽

Group 1

Background: Growth hormone and insulin-like growth factor 1 are anabolic hormones that play a vital role in the growth of various physical organs. Exercise is one of the stimuli that affect GH and IGF-1 secretion. Objectives: This study aimed to compare the effect of two types of high-intensity interval training (HIIT) on plasma levels of GH and IGF-l in overweight nurses. Methods: In this study, 27 nurses were voluntarily selected and randomly assigned to three groups (9 participants for each group): 1. HIIT (type 1), including eight seconds of spring running and 12 seconds of active recovery, 2. HIIT (type 2), including a 40-meter shuttle run with maximum speed, 3. control. HIIT (type 1) was performed for four weeks, three sessions per week, each session 6 - 9 min with more than 90% HRmax. HIIT (type 2) was applied for four weeks, three sessions per week, with more than 90% HRmax. The control group did not participate in any training protocol. The serum value of GH and IGF-1 were compared in three groups. The data were analyzed by the dependent t-test and ANOVA. One-way analysis of variance (ANOVA) was used to analyze the intergroup data at P ⟨ 0.05. Results: The results showed that HIIT (type 1) and (type 2) significantly increased plasma GH (P = 0.032 in group 2 and P = 0.010 in group 1) and IGF-l (P = 0.004 in group 2 and P = 10.013 in group 1) levels in nurses. The results showed a significant difference in the variables (GH and IGF-l) among HIIT (type 1), HIIT (type 2), and control groups. Conclusions: It can be concluded that four weeks of adverse intermittent exercises are effective in increasing the concentration of GH and IGF-1 serum and decreased percentage body fat in young nurses with overweight, and proportional to the intensity of the exercise protocol response rate is different.

Download Full-text

Effects of an Eight-Week High-Intensity Interval Training on Aerobic Performance, Lipid Profile, and Hematological Indices in Overweight Adolescents

Jundishapur Journal of Health Sciences ◽

10.5812/jjhs.110645 ◽

2021 ◽

Vol 13 (2) ◽

Author(s):

Jahangir Sadeghi ◽

Amirabbas Monazzami ◽

Abdolhossein Taheri Kalani

Keyword(s):

Heart Rate ◽

Lipid Profile ◽

Density Lipoprotein ◽

Interval Training ◽

Aerobic Performance ◽

High Intensity Interval Training ◽

Maximum Heart Rate ◽

Hematological Indices ◽

Overweight Adolescents ◽

High Intensity Interval

Background: Research on the effects of interval training on lipid profile and hematological indices is limited. Objectives: Therefore, the purpose of this study was to determine the effects of eight weeks of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on aerobic performance, body composition, lipid profile, and hematological indices in overweight adolescents. Methods: Thirty overweight boys (13 - 16 years) participated in this study and were randomly divided into three groups, including the control (n = 10), HIIT (n = 10), and MICT (n = 10) groups. HIIT training (4 × 4-minute) was performed with an intensity of 95 - 85% of maximum heart rate, and MICT training (35-minute) was performed with an intensity of 70 - 60% of maximum heart rate, three sessions per week for eight weeks. Beep test and ELISA technique were used to measure aerobic performance, lipid profile, and hematological indices, respectively. The two-way repeated-measures ANOVA was used to determine the differences with a confidence interval of 95% (α = 0.05). Results: The results showed that except for the variables of glucose, triglyceride (TG), and low-density lipoprotein (LDL), all other variables in the HIIT group had a significant change compared to the pre-test (P < 0.05). Also, the results showed that there was a significant difference between the HIIT and control groups in fat percentage, VO2Max, high-density lipoprotein (HDL), iron, and hemoglobin value (P < 0.05). Conclusions: The results suggest that HIIT training can be as effective as continuous strategy training to reduce the risk factors associated with cardiovascular disease in overweight adolescents.

Download Full-text

EVALUATING THE BODY RESPONSE TO A 15-MINUTE WORKOUT PROPOSED AS AN ALTERNATIVE TO GYM TRAINING DURING LOCKDOWN CAUSED BY THE COVID-19 PANDEMIC

Acta kinesiologica ◽

10.51371/issn.1840-2976.2021.15.2.10 ◽

2021 ◽

pp. 80-85

Author(s):

Dariusz Boguszewsk ◽

Agata Szymańska ◽

Justyna Wielgosz ◽

Aleksandra Hanc ◽

Jakub Grzegorz Adamczyk ◽

...

Keyword(s):

Subjective Evaluation ◽

Interval Training ◽

The Body ◽

Abdominal Muscles ◽

High Intensity Interval Training ◽

Physically Active ◽

Muscle Groups ◽

Group 2 ◽

High Intensity Interval ◽

Group 1

The aim of the work was to study the body reaction to high intensity interval training. The study included 92 women aged 18 to -35. People who have been engaged in organised, regular physical activity (at least twice a week) were qualified to Group 1. Group 2 were physically inactive persons. All subjects performed interval training in the Tabata formula - two 4-minute sequences. The exercise carried out in the first part is elevating the legs from the “plank” position, in the second part, the hands were elevated from the same position. The pulse rate, the Borg Scale and the VAS pain rate scale (24, 48, 72 and 96 h after exercise) were used to assess the exercise intensity. The respondents from both groups performed the training at a similar intensity: the average heart rate after workout was 131 beats per minute. The highest pain of all muscle groups (when added together) was recorded 24 hours after training. The highest pain intensity during the four days after the training concerned the back and abdominal muscles in Group 1 and the muscles of the abdomen, back and arms (front and back). The intensity of abdominal and arm muscle pain (front) was significantly higher in Group 2. The proposed 15-minute workout planned in the form of Tabata evoked similar cardiovascular reactions in both groups and a similar subjective evaluation of intensity. Individuals who were physically active before the introduction of restrictions related to the COVID-19 pandemic had less pain in the muscular system after the applied training.

Download Full-text

A Comparison of Heart Rate Training Load and Perceptual Effort Between Masters and Young Cyclists

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2019-0413 ◽

2020 ◽

Vol 15 (5) ◽

pp. 759-762

Author(s):

Nattai R. Borges ◽

Aaron T. Scanlan ◽

Peter R. Reaburn ◽

Thomas M. Doering

Keyword(s):

Heart Rate ◽

High Intensity ◽

Perceived Exertion ◽

Interval Training ◽

Training Load ◽

Peak Power Output ◽

High Intensity Interval Training ◽

Age Related ◽

High Intensity Interval ◽

Training Impulse

Purpose: Due to age-related changes in the psychobiological state of masters athletes, this brief report aimed to compare training load responses using heart rate (HR) and ratings of perceived exertion (RPE) during standardized training sessions between masters and young cyclists. Methods: Masters (n = 10; 55.6 [5.0] y) and young (n = 8; 25.9 [3.0] y) cyclists performed separate endurance and high-intensity interval training sessions. Endurance intensity was set at 95% of ventilatory threshold 2 for 1 hour. High-intensity interval training consisted of 6 × 30-second intervals at 175% peak power output with 4.5-minute rest between intervals. HR was monitored continuously and RPE collected at standardized time periods during each session. Banister training impulse and summated-HR-zones training loads were also calculated. Results: Despite a significantly lower mean HR in masters cyclists during endurance (P = .04; d = 1.06 [±0.8], moderate) and high-intensity interval training (P = .01; d = 1.34 [±0.8], large), no significant differences were noted (P > .05) when responses were determined relative to maximum HR or converted to training impulse and summated-HR-zone loads. Furthermore, no interaction or between-group differences were evident for RPE across either session (P > .05). Conclusions: HR and RPE values were comparable between masters and young cyclists when relative HR responses and HR training load models are used. This finding suggests HR and RPE methods used to monitor or prescribe training load can be used interchangeably between masters and young athletes irrespective of chronological age.

Download Full-text

The Effects of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Heart Rate Variability in Physically Inactive Adults

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph15071508 ◽

2018 ◽

Vol 15 (7) ◽

pp. 1508 ◽

Cited By ~ 16

Author(s):

Abdullah Alansare ◽

Ken Alford ◽

Sukho Lee ◽

Tommie Church ◽

Hyun Jung

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

High Intensity ◽

Interval Training ◽

Moderate Intensity ◽

High Intensity Interval Training ◽

Continuous Training ◽

Significant Interaction Effect ◽

High Intensity Interval ◽

Physically Inactive

Physically inactive adults are prevalent worldwide. This study compared the effects of short-term high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) on heart rate variability (HRV) in physically inactive adults as a preliminary study. Thirteen physically inactive male adults (27.5 ± 3.80 years) were randomly assigned to HIIT (N = 7) or MICT (N = 6). The HIIT program consisted of 20 min of interval training with cycling to rest ratio of 10/50 s at ≥90% HRpeak, while the MICT program consisted of 40 min of continuous cycling at 60–75% HRpeak. Both groups completed eight sessions of training within two weeks. Time and frequency domains of HRV were measured for 20 min with Actiwave-Cardio monitor (CamNtech, UK). The number of R-R interval and inter-beat interval (IBI) were significantly improved (p < 0.05) in both HIIT and MICT programs following eight sessions of training. A significant interaction effect for group by time was found in the lnLF/HF ratio (p < 0.05) where it was only improved in the HIIT group from pre- to post-test. The HIIT program is superior to MICT in improving HRV in physically inactive adults. The HIIT program can be applied as a time-efficient program for improving cardiac-autoregulation.

Download Full-text

Comparison of different volumes of high intensity interval training on cardiac autonomic function in sedentary young women

International Journal of Adolescent Medicine and Health ◽

10.1515/ijamh-2017-0073 ◽

2017 ◽

Vol 31 (6) ◽

Cited By ~ 6

Author(s):

Pooja Bhati ◽

Vishal Bansal ◽

Jamal Ali Moiz

Keyword(s):

Heart Rate ◽

Body Composition ◽

Muscle Strength ◽

Young Women ◽

High Intensity ◽

High Frequency ◽

Interval Training ◽

Treadmill Running ◽

High Intensity Interval Training ◽

High Intensity Interval

Abstract Purpose The present study was conducted to compare the effects of low volume of high intensity interval training (LVHIIT) and high volume of high intensity interval training (HVHIIT) on heart rate variability (HRV) as a primary outcome measure, and on maximum oxygen consumption (VO2max), body composition, and lower limb muscle strength as secondary outcome measures, in sedentary young women. Methods Thirty-six participants were recruited in this study. The LVHIIT group (n = 17) performed one 4-min bout of treadmill running at 85%–95% maximum heart rate (HRmax), followed by 3 min of recovery by running at 70% HRmax, three times per week for 6 weeks. The HVHIIT group (n = 15) performed four times 4-min bouts of treadmill running at 85%–95% HRmax, interspersed with 3-min of recovery by running at 70% HRmax, 3 times per week for 6 weeks. All criterion measures were measured before and after training in both the groups. Results Due to attrition of four cases, data of 32 participants was used for analysis. A significant increase in high frequency (HF) power (p < 0.001) and decrease in the ratio of low frequency to high frequency power (LF/HF) ratio (p < 0.001) in HRV parameters, was observed post-HVHIIT, whereas, these variables did not change significantly (HF: p = 0.92, LF/HF ratio: p = 0.52) in LVHIIT group. Nevertheless, both the interventions proved equally effective in improving aerobic capacity (VO2max), body composition, and muscle strength. Conclusion The study results suggest that both LVHIIT and HVHIIT are equally effective in improving VO2max, body composition, and muscle strength, in sedentary young women. However, HVHIIT induces parasympathetic dominance as well, as measured by HRV.

Download Full-text