جستجوی مقالات مرتبط با کلیدواژه « تمرینات اینتروال شدید » در نشریات گروه « تربیت بدنی »

The increasing use of non-pharmacological treatment methods such as exercise and meditation in the management of diabetes is very important to improve the physical and mental condition of diabetic patients. The purpose of present study was to investigate the effect of high intensity interval training (HIIT) vs. meditation on insulin sensitivity indices, glycemic indices, and lipid profile in women with type 2 diabetes.

30 middle-aged diabetic women were randomly assigned and divided into three group include HIIT, meditation, and control. Serum glucose, insulin, Glycated hemoglobin, triglyceride, high-density lipoprotein (HDL), and low-density lipoprotein (LDL) levels were measured fasting 48 hours before and after the intervention. Insulin sensitivity and resistance indices were calculated based on formulas. HIIT was carried out for 12 weeks and three sessions per week and meditation for 12 weeks and all days of the week. For between-group comparison, Two-way Mixed ANOVA and Tukey's post-hoc test were used, and paired T-test was used for analysis of within-group differences.

QUICKI, McAuley, HOMA-IR, glucose, insulin, glycated hemoglobin, and lipid profile showed a significant improvement in the HIIT group compared to the control group (P≤0.05). Furthermore, fasting glucose, QUICKI, and HOMA-IR in the HIIT group had a significant improvement compared to the meditation group (P≤0.05). The meditation group also significantly improved HOMA-IR, insulin, and HDL compared to the control group (P≤0.05).

The findings of the present study showed that both HIIT and meditation could improve insulin sensitivity and resistance, some glycemic indices and lipid profile in women with type 2 diabetes. However, the effectiveness of HIIT was more pronounced than meditation in most variables. To gain a better understanding of the efficiency of both methods, more research is necessary.

Liver hepatokines are one of the contributing factors in non-alcoholic fatty liver disease. One of the most effective treatments for this condition is exercise. Therefore, the aim of this study was to investigate the response of some liver hepatokines to a period of high intensity interval training in women with fatty liver.

twenty Five women with non-alcoholic fatty liverwere randomly divided into two groups: exercise or control. The high intensity interval training protocol was performed for 8 weeks and four sessions per week for 60 minutes each session. Blood samples were taken from the arm vein to 5 cc pre- and post-test conditions. Plasma levels of Leukocyte-derived chemotaxin 2 (LECT2), angiopoietin-dependent growth factor (AGF), sex hormone-binding globulin (SHBG), and insulin were measured. Independent paired T-test was used to determine the intra-group changes of pre-test with post-test of dependent variables, and independent t-test was used to determine the significant difference between the groups.

The present study showed that after eight weeks of intense interval training LECT2 and AGF in the training group compared to the control had a significant decrease and SHBG significantly increased (p <0.05). Also, insulin resistance, body fat percentage, body mass index and waist to pelvic hip ratio have been significantly reduced in the exercise group compared to the control group (p <0.05).

High intensity interval training in women seems to be a non-pharmacological solution to improve insulin resistance and improve fatty liver-related hepatokines.

The aim of this study was to evaluate the effect of 6 weeks HIIT training in the conditions of hypoxia and normoxia on liver enzymes levels and lipid profiles in overweight women. Subjects consisted of twenty inactive overweight women that were randomly and equal assigned into two groups, HIIT training under normoxia conditions (age: 27.70 ± 3.164 and BMI: 26.2 ± 91.064) and HIIT training under hypoxia conditions (age: 27.20 ± 3.32 and BMI: 27.1 ± 36.49). Both of groups performed HIIT training for six weeks and three times a week with intensity of 90% Peak oxygen consumption. Blood samples were obtained 48 hours before and after six weeks of HIIT training. Data was statistically analyzed by dependent and independed t-test, with a 0.05 significance level. The findings showed that the level of aspartate aminotransferase in pretest and posttest of both groups decreased significantly, but the levels of alanine aminotransferase, total cholesterol and low density lipoprotein only in the hypoxia group significantly decreased. Therefore HIIT training in hypoxic conditions possibly effective in liver health and prevention of diseases associated with obesity and overweight and it's an appropriate training for inactive and obese individuals

Aim: The main objective of the study was to consider the impact of 12 weeks high intensity interval training on plasma Adiponectin, Leptin and insulin resistance in 20-35 years old obese males with non-alcoholic fatty liver.
In this study researchers used of thirty eight participants with means of age 28.5±6.2 yrs, weight 95.4±11.8 kg and height 178.6±14.7 cm were randomly divided into two groups including experimental (N=18) and control (N=20) groups. The experimental group performed high intensity interval training for 36 sessions and 3 days per week. Intensity of training in the first session was determined with 90% of peak power output in subjects and 115% of peak power output in last session. The protocol training was 10 sets of 60 seconds repetitions of pedaling a bicycle ergometer with 60 seconds rest to 15% peak power output during exercise. Once normal distribution of collected data has been analyzed by K-S test, the pre and post mean difference significant has been analyzed by using t-paired test (p≤0.05).
After 12 weeks high intensity interval training in obese males with fatty liver, the results have shown a significant decrease in Leptin level, and a significant decrease in Insulin resistance level (p : Finally, the results have shown that12 weeks high intensity interval training in obese males with fatty liver could change Adiponectin, Leptin and Insulin resistance levels. Also, any decrease in body mass index and weight, resulted in disorder improvement.

Background and Recently high intensity interval training (HIIT) has become an interesting study field for research. However, few studies have been conducted in this domain.Hence, the aim of the present study was to evaluate the effect of two weeks of high intensity interval training (HIIT) on some cardiovascular indices, anaerobic power output, jumping andsprint performances in active female students. 20 female students of physical education voluntarily participated as subjects for the study. Subjects were randomly divided into experimental and control groups The pretests including estimating VO2max, resting blood pressure, restingheart rate, power output with RAST and Wingate test, 20 meter sprinting, and height of squat jump and countermovement jump were taken in one week. Then, the experimental group wasexposed to 2 weeks of HIT for 5 days per week in addition to their routine physical activities. After 48 hours of the last training session, post-tests were administered in both groups. To analyzethe data, independent T-test with a significance level of p 0.05 was used. Our findings showed significant increases in VO2max, peak, average and minimum power on RAST test and a significant reduction in sprinting time (p<0.05). However, resting blood pressure, resting heart rate, power output with Wingate test, height of squat jump and countermovement jump and also leg elasticity index did not significantly change after training. According to results of the present study, it seems that two weeks high intensity interval training can be effective for improving VO2max, sprint performance and increasing anaerobic power in a short time for sports in which running is essential.

The purpose of this study was to investigate the effect of four weeks interval training with creatine supplementation on body composition and sprint performance in amatory female swimmers.

Subjects
consist of 30 female from Ahvaz City (average age: 22/10 ± 1/41 , mean weight: 57 ± 6/31 kg) were selected and randomly divided in three equal groups of supplement, placebo and control. The subjects in supplement group ingested 20gr (2×10gr per day) creatine supplement per day for five days (loading phase) and then ingested 2gr per day for 25 day (maintenance phase). In placebo group, the subjects ingested the same dose of placebo at the same time. The supplement and placebo groups participated in swimming interval training by 85_90% of maximum heart rate for four weeks. The control group didn’t ingested supplement and didn’t participate in training. body compositions factors of subjects were evaluated by performed body composition test and for evaluation the sprint performance, subjects performed the 25m swimming test. All of the subjects performed these tests before and after 4 weaks training.

The results suggested that four weeks interval training with creatine supplementation lead to no significant changes in body compositions factors in supplement and placebo groups. But four weeks interval training with creatine supplementation lead to significant changes in sprint performance in supplement and placebo groups.

Therefore these results suggest that creatine supplementation lead to increase in muscle creatine reserve, improvement in ATP-Pc system and then lead to improvement in intensive short distance performance. In the other hand, the subjects were amatory and one of the factors that improved the records of sprint performance (in tow groups) may be learning and effects of training.