The Effect of Eight Weeks of Concurrent Endurance Interval and Resistance Training and Concurrent Endurance Continuous and Resistance Training on Strength, Body Composition and Lipid Profiles in Non-Athlete 14-17-Year-Old Overweight Boys
Ahmad
Jafari
دانشگاه تربیت دبیر شهید رجائی کارشناس ارشد
author
Alireza
Ramezani
دانشگاه تربیت دبیر شهید رجائی -استادیار
author
text
article
2013
per
The aim of this study was to examine the effects of two kinds of concurrent training on body fat percentage, body mass index (BMI), maximal oxygen consumption, body upper strength, body lower strength, total cholesterol, Triglyceride and low- and high-density lipoprotein-cholesterol in non-athlete overweight boys. For this purpose, 40 non-athlete overweight boys (mean age 15.33 ± 0.58) were selected and assigned randomly to three groups: endurance interval and resistance training group (I+R, N=14, BMI=26.8±2.6), endurance continuous and resistance training group (C+R, N=14, BMI=26.10±2.1), and control group (C, N=12, BMI=27.3±3.2). The variables of body fat percentage, body mass index (BMI), maximal oxygen consumption, body upper strength, body lower strength, total cholesterol, triglyceride and low and high-density lipoprotein- cholesterol were measured at least 3 days before and after the training period. Paired t-test and one-way analysis of variance (ANOVA) and post hoc Scheffe test were used to analyze variables. The findings indicated that the (I+R) and (C+R) groups significantly increased their body upper and lower strength and significantly decreased their %BF and TG (p=0.001). LDL-C decreased significantly in the (I+R) group (p=0.001) and (C+R) group (p=0.009), but HDL-C increased significantly in the (I+R) group (p=0.000) and (C+R) group (p=0.003). It can be concluded that the concurrent interval or continuous and resistance training improve strength, maximal oxygen consumption, body fat percentage and lipid profiles in non-athlete overweight boys.
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
5
22
https://jsb.ut.ac.ir/article_29775_545c17a648009ffdf3f71f25b5be9654.pdf
dx.doi.org/10.22059/jsb.2013.29775
The Effect of Aerobic Training and Green Tea Supplement on Serum Leptin and Insulin Resistance in Overweight and Obese Men
Amirhossein
Haghighi
دانشگاه حکیم سبزواری-دانشیار
author
Arezu
Ildarabadi
دانشگاه حکیم سبزواری-کارشناس ارشد
author
Mohamad Reza
Hamedi neya
دانشگاه حکیم سبزواری-دانشیار
author
text
article
2013
per
The aim of the present study was to examine the effect of aerobic training and green tea supplementation on serum leptin and insulin resistance in overweight and obese men. For this purpose, 43 overweight and obese men were selected voluntarily and were included in four groups: control (body mass index 31.4+3.7, VO2max 39.3+3.8 ml/kg.min), green tea supplement (body mass index, 30.3±2.8 k/m2, VO2max, 40.6±4.1 ml/kg.min), exercise (body mass index, 30.6±4.2 k/m2; VO2max, 38.7±5.6 m/kg.min), combined exercise and green tea supplement (body mass index, 30.9±2.6 k/m2; VO2max, 40.3±3.1ml/kg.min). The exercise group performed the aerobic program for 10 weeks, three sessions per weeks with an intensity of 65 to 75% of maximal heart rate. Green tea supplement group consumed daily three green tea bags (2 gr. each bag). The combined exercise and green tea supplement group had the two interventions. Before and after the investigation, fasting blood samples of all subjects were collected. The data were analyzed by one-way ANOVA and ANCOVA tests. Results showed that aerobic training, green tea supplement and combination of aerobic training and green tea supplement did not significantly change serum leptin levels and insulin resistance index. Green tea supplement significantly decreased weight and body mass index. Aerobic training significantly decreased weight, body mass index and body fat percentage. Combination of aerobic training and green tea supplement significantly increased maximal oxygen consumption and significantly decreased weight, body mass index and body fat percentage. It can be concluded that aerobic training and green tea supplement did not have a significant effect on serum leptin levels and insulin resistance index. However, to achieve more conclusive results, further investigation is warranted.
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
23
43
https://jsb.ut.ac.ir/article_29776_2af40487847b319d8e8a7d1276dc5f23.pdf
dx.doi.org/10.22059/jsb.2013.29776
Hormonal Responses, Indicators of Cell Damage and Concentration of Plasma Amino Acids following Acute Resistance Exercise with BCAA Supplement
Daruosh
Sheikholeslami Vatani
دانشگاه کردستان-استادیار
author
Arezou
Moradi
دانشگاه کردستان-کارشناس ارشد
author
text
article
2013
per
The aim of this study was to determine the acute effect of resistance exercise along with branched chain amino acid (BCAA) supplement on concentration of plasma amino acids, hormonal responses and indices of muscle damage in healthy young women. 10 physically active female students who had at least two sessions of regular exercise per week, and had no history of any supplement consumption, the volunteered to participate in a randomized double blind placebo – controlled cross – over trial. The study design was conducted in two sessions with an interval of six weeks. Resistance protocol included 7 movements (2 lower body and 5 upper body movements) in 5 sets with 12 – 15 repeats and 50% of 1RM. In each session, randomly, half of the subjects received supplement (S) (4.5g BCAA solution) and the other half ingested placebo (P) (same amount of dextrose). Blood samples were collected before the exercise (fasting), immediately, 3 hours and 24 hours after the exercise. These results showed that BCAA supplement drastically increased the BCAA after the exercise (P
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
45
62
https://jsb.ut.ac.ir/article_29777_39ffe8a892dffcf1ebdacd3d50853b7e.pdf
dx.doi.org/10.22059/jsb.2013.29777
The Effect of Maximal Endurance Training on Hemorheological Factors of National Athletes of Triathlon
Parvaneh
Nazarali
دانشگاه الزهرا-دانشیار
author
Saeideh
Sarvari
دانشگاه الزهرا-کارشناس ارشد
author
Azam
Ramezankhani
دانشگاه تهران-دانشجوی دکتری
author
text
article
2013
per
The aim of this study was to determine short-term changes of blood rheology after intensive endurance exercise in national triathlon athletes. Nine national athletes of triathlon (mean age=20.12±2.15 years, weight 70.12±8.54 kg) took part in this study voluntarily. Subjects performed triathlon race which is one of the branches of multiple sports (which consisted of 2 kilometers running, 7 kilometers cycling and 2 kilometers continuous running). Blood samples (7 mm) were collected at the baseline (before) and after the race from antecubital vein. Blood viscosity, RBC, hematocrit, hemoglobin and ESR were measured. The data were analyzed by paired sample t test. The findings showed that after the race, blood viscosity significantly increased at 12, 30 and 60 speed (P
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
63
75
https://jsb.ut.ac.ir/article_29778_d9db85737b29bc4f859cb15ed528abfc.pdf
dx.doi.org/10.22059/jsb.2013.29778
The Effect of Concurrent (Resistance and Endurance) Training on Plasma Myostatin Levels in Obese Non-Athlete Men
Mohammadreza
Asad
دانشگاه پیام نور-استادیار
author
Javad
Vakeli
دانشگاه تبریز-استادیار
author
text
article
2013
per
The aim of the present study was to examine the effect of 8 weeks of concurrent training on the plasma myostatin levels in non-athlete obese men. This research was quasi-experimental. For this purpose, 23 overweight non-athlete men voluntarily participated in this study and were assigned to concurrent training group (n=12, mean age 21.38±2.06 yr, height 173.65±7.07 cm, weight 86.61±15.05 kg and BF% 27.05±2.67 and control group (n=11, mean age 21.44±1.13 yr, height 175.61±5.09 cm, weight 90.00±14.05 kg, BF% 27.15±2.68). The experimental subjects performed 8 weeks of concurrent protocol including resistance training (5 exercises, 3 days per week, at 50% – 80% of 1RM) and endurance training (running with 65% – 85% HRmax for 25 – 40 min.). In concurrent group, all subjects performed endurance training before resistance training. Control group did not participate in any training program. Prior to the protocol and 48 hours after the last session, fasting blood samples (5 mm) were collected from antecubital vein of the subjects. The results of independent t test showed a significant decrease in plasma myostatin level in experimental group (p=0.001). Therefore, it can be concluded that concurrent training can prevent the loss of muscle mass and sarcopenia.
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
77
89
https://jsb.ut.ac.ir/article_29779_6a5086d2e1ad5ff83217aae9916e3720.pdf
dx.doi.org/10.22059/jsb.2013.29779
The Effect of Aerobic Exercise Training on Serum Levels of TNF-α, IL - 1β, IL-6 and Hsp70 in Rats
Amin
Isanejad
دانشگاه شاهد-استادیار
author
zahir
HasanSarraf
دانشگاه تربیت مدرس-استاد
author
Mehdi
Mahdavi
انستیتو پاستور ایران-استادیار
author
Reza
Gharakhanlou
دانشگاه تربیت مدرس-دانشیار
author
text
article
2013
per
Extra-cellular levels (serum) of heat shock protein 70 is influenced by various stressors such as exercise and it has been shown that this protein affects the proinflammatory cytokines in human and animal samples. The aim of this study was to investigate the effect of endurance training on serum levels of proinflammatory cytokines (TNF-?, IL-1?, IL-6 and Hsp70) in trained and untrained rats. For this purpose, 10 male wistar rats were purchased from Pasteur institute of Iran and divided into control (n=5) and experimental (n=5) group. The aerobic program included 8 weeks (5 sessions per week) of endurance exercise running on a treadmill; exercise intensity was 55% to 75% VO2max. Serum levels of TNF-?, IL-1?, IL-6 and Hsp70 were measured by Elisa method. Results showed that serum levels of Hsp70 in the exercise group significantly increased (P
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
91
106
https://jsb.ut.ac.ir/article_29780_f64cac1742843559cc3ff722405b7aa4.pdf
dx.doi.org/10.22059/jsb.2013.29780
The Effect of Circuit Resistance Training with Different Intensities on Ghrelin Concentration and Plasma GH in Young Women
Amir
Rashid lamir
دانشگاه فردوسی مشهد-استادیار
author
Zahra
Mir Zendedel
دانشگاه فردوسی مشهد-کارشناسی ارشد
author
Ahmad
Ebrahimietri
دانشگاه فردوسی مشهد-استادیار
author
Aliasghar
Ravasi
دانشگاه تهران-استاد
author
text
article
2013
per
The aim of this study was to determine the effects of circuit resistance training with different intensities on plasma ghrelin and GH in non–athlete young women. For this purpose, 20 young women were voluntarily selected and randomly divided into four experimental and control groups. Experimental groups were three groups who performed the protocol with intensity of 40% 1RM (group 1), %60 1RM (group 2) and %80 1RM (group 3) while control group remained sedentary. Blood samples were collected before and immediately after the exercise. Data were analyzed using paired sample t test, one-way ANOVA and Pearson correlation coefficient (P?0.05). The results showed an increase in plasma ghrelin in all three intensities (P
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
107
120
https://jsb.ut.ac.ir/article_29781_5f8c3def72e1af1de720a8c04832dd99.pdf
dx.doi.org/10.22059/jsb.2013.29781
The Effect of Omega-3 Supplementation on Serum Prostaglandin E2 in Athlete Women after a Single Bout of Exhaustive Exercise
Serous
Choobine
دانشگاه تهران-استادیار
author
Ali
Akbarnejad
دانشگاه تهران-استادیار
author
Maboubeh
Borjian
دانشگاه تهران-کارشناس ارشد
author
Mohammad Reza
Kordi
دانشگاه تهران-دانشیار
author
text
article
2013
per
The aim of this study was to examine the effect of omega-3 supplementation on serum prostaglandin E2 in female athletes after a single bout of exhaustive exercsie. 22 female athletes (mean age 21.17±0.78 yr, body mass 21.24±2.32, VO2max 40.55±4.97) participated in study and divided into supplementation and placebo groups. Supplementation subjects daily received an omega-3 capsule containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and placebo subjects daily received a placebo capsule for 3 weeks. Blood samples were collected before and after the supplementation, before and after the exhaustive eercise. The prostaglandin E2 was measured by Eliza method. Data were analyzed by two-way analysis of variance at P
Journal of Sport Biosciences
University of Tehran
2008-9325
4
v.
15
no.
2013
121
133
https://jsb.ut.ac.ir/article_29782_19d3160f540b368fb6e35ada03891623.pdf
dx.doi.org/10.22059/jsb.2013.29782