Papers by Fariborz Hovanloo
Life Sciences, Jun 1, 2018
Mild aerobic training with blood flow restriction increases the hypertrophy index and MuSK in bot... more Mild aerobic training with blood flow restriction increases the hypertrophy index and MuSK in both slow and fast muscles of old rats: Role of PGC-1α. The address for the corresponding author was captured as affiliation for all authors. Please check if appropriate. Lfs(2018),
The Neuroscience Journal of Shefaye Khatam, Apr 10, 2018
Neurotrophins are a group of nerve growth factors with their protein s tructure. These proteins p... more Neurotrophins are a group of nerve growth factors with their protein s tructure. These proteins play an important role in the growth and metabolism of many cells and maintain nerve, muscle, synaptic potentials, and also helps reduce depression and apoptosis. The aim of this s tudy was to evaluate the effect of 10 weeks low-intensity aerobic training and limited blood flow to the amount of protein neurotrophic factor derived from the brain (BDNF) in the soleus, extensor long fingers muscles (EDL) as well as sciatic nerve in rats the elderly. 60 elderly male Wis tar rats (23-24 months) were chosen which their weigh were 355 to 481 grams. They were divided into 6 groups randomly, blood flow res triction (BFR), exercise with blood flow res triction (BFR + Ex), sham (Sh), sham with exercise (Sham + Ex), control (Ctl) and exercise (Ex). They were trained with a low aerobic exercise (15 m / min) for 1 hour, 5 days a week for 10 weeks then were sacrificed 48 hours after the las t training session. The samples of muscle and the sciatic nerve were separated immediately and they were put in a solid nitrogen. and Then, they were preserved at-80 ° C. The protein samples were detected by Wes tern Blotting method. The s tatis tical analysis was conducted with SPSS software version 18. Data normal dis tribution determined by Shapiro-Wilk tes t. Comparisons were performed among different groups by one-way ANOVA and pos t hoc Tukey's tes t. P values less than 0.05 were considered as s tatis tically significant. The results have shown that BDNF protein jus t decreased in the EDL muscle for BFR + Ex group compared with Ctl and Sh groups (P˂0.05) significantly. In addition, in soleus muscle BFR + Ex group decreased in compare with all groups (groups Ctl, Sh and BFR P˂ 0.001 and Ex and Sh + Ex (p˂0.05) significantly. moreover, Ex, Sh + Ex groups in comparison with Ctl and Sh have decreased significantly (P˂ 0.001). On the other hand, the sciatic nerve of BFR + Ex group, in comparison with all groups, increased significant (P˂ 0.001). This s tudy has indicated that this type of exercise can effect on the BDNF protein in slow and fas t witch muscles. Furthermore, BFR+Ex, as a training method, can influence on nerve and muscle positively.
Effects of Aerobic Training Combined with Green Tea Extract on Leukocyte Telomere Length, Quality of Life and Body Composition in Elderly Women
The Effect of Aerobic and Anaerobic Functional Fatigue Protocols on Dynamic Postural Stability in Nonelite Young Soccer Players
DOAJ (DOAJ: Directory of Open Access Journals), Sep 1, 2014
Background: Type 2 diabetes is a global health problem and a major cause of illness. Exercise, di... more Background: Type 2 diabetes is a global health problem and a major cause of illness. Exercise, diet and medication are the three pillars in the treatment of type 2 diabetes. Objective: The aim of the present study was to investigate the effect of aerobic training combined with green tea hydroalcoholic extract consumption on blood glucose and lipid profile on diabetic rats. Methods: Diabetes was induced in 40 male Wistar rats by intraperitoneal injection of 50 ml/kg streptozocin. After two weeks the diabetic rats with fasting blood glucose of 150 to 300 mg/dl were divided into 4 groups of 10 rats each and named as: aerobic exercise, aerobic exercise with green tea, green tea, and control. Aerobic exercise was performed as running on Treadmill for 5 days a week daily for 30-90 minutes with Treadmill speed of 18-24 meters per minute. Green tea extract (100 mg/kg) was gavages once a day for 5 weeks. At baseline and endpoint fasting blood glucose, cholesterol, HDL-c, LDL-c and triglyceride levels were determined in all groups. Results: Fasting blood glucose level decreased significantly in all groups but triglyceride and cholesterol decreased in aerobic exercise and aerobic exercise + green tea groups at end point compared with baseline and also compared with control group. Fasting blood LDL-c level significantly decreased and HDL-c level significantly increase, in aerobic exercise and aerobic exercise with green tea at end point compared with baseline and also compared with control and green tea group. Conclusion: Aerobic exercise favorably affects glucose and lipid profile and in combination with green tea it has synergistic effects.
Brain-derived neurotrophic factor, insulin-like growth factor 1 and its binding protein responses to a session of endurance exercises in healthy elderly men
Annals of military and health sciences research, Mar 15, 2014
European Journal of Sport Science, Sep 19, 2019
Football is a contact sport with a significant risk of injury. Although proprioception is well st... more Football is a contact sport with a significant risk of injury. Although proprioception is well studied in rehabilitation, little is known about the association between proprioception and the occurrence of sport injuries. The purpose of this study was to look into the association between ankle and knee proprioception and lower extremity injuries in young football players. 73 football players from the highest U-21 league in Iran volunteered to participate in this study. Before the start of the 2017-2018 competitive season, joint position sense was measured at 30°, 60° and 90° knee flexion and at 10° and 15° ankle dorsiflexion, and inversion using the Biodex Isokinetic pro 4 system. The teams' medical staff recorded football-related lower extremity injuries. We used mixed effects Cox regression models to calculate hazard ratios (HRs) with 95% CIs, acknowledging the clustered data structure. 22 players (30.1%) suffered one or more lower extremity injuries during the season. None of the proprioception measures examined was significantly associated with the risk of lower extremity injuries. Based on these results of our sample, joint position sense does not seem to be associated with lower extremity injuries in young male football players.
Effects of Sprint Interval and Continuous Endurance Training on Inflammatory
Electronic physician, 2011
The Effect of Whole Body Vibration Training on Dynamic Balance in Athletic Students
Physical Therapy in Sport, Sep 1, 2019
Background: Validating any screening test to predict and prevent football injuries is in need of ... more Background: Validating any screening test to predict and prevent football injuries is in need of identifying related risk factors through prospective designs. In spite of the extensive use of strength testing in football players, there are limited studies investigating the relationship between isokinetic muscle strength and injury risk in young football players. The present study aimed to evaluate the relationship between isokinetic strength and the risk of lower extremity injury among Iranian young football players. Methodology: seventy three U-21 football players participated in this study. Isokinetic strength of hip, knee and ankle muscles were measured using the Isokinetic system pro 4. Injuries and exposure in training and matches were registered prospectively by club medical staff for one season. Results: Significant relationships were revealed between the isokinetic strength of hip abductor and adductor muscles, and isokinetic strength ratio of hip abductor/adductor muscles at an angular speed of 30°/sec, the isokinetic strength of hip abductor muscles at 90°/sec, and isokinetic strength of knee flexor and extensor muscles at 60°/sec and knee flexor/extensor strength ratio at angular velocities of 60°/sec with the injury occurrence among football players. Conclusion: lower extremity isokinetic strength indices are associated with injuries in young male football players.
BMC sports science, medicine & rehabilitation, Feb 22, 2022
Background: Wrestling is considered one of the oldest sports in the world. There is a high rate o... more Background: Wrestling is considered one of the oldest sports in the world. There is a high rate of injuries in Wrestling. To prevent injuries, it is necessary to identify the risk factors. Despite the functional importance of strength in wrestling, few studies have investigated the relationship between isokinetic strength and the rate of injuries in the sport. Objectives: The objective of the present study was to investigate the relationship between the isokinetic strength of elite wrestlers and the rate of injuries prospectively. Method: A total of 72 young wrestlers with at least 2 years of experience in the Tehran Wrestling Premier League participated in this study. Before the start of the competition season, the isokinetic strength of flexor and extensor muscles of the knee and shoulder were measured at different velocities by an isokinetic dynamometer. The injuries and training hours of these wrestlers were then recorded for nine months. Results: The study results showed no significant relationship between isokinetic strength of flexor and extensor muscles of the knee or shoulder at different angular speeds of 60, 180, and 300°/s. There was neither significant between the ratio of the strength flexor/extensor for knee and/or shoulder in young elite wrestlers with injuries. Conclusion: Isokinetic strength of lower and upper limb muscles alone cannot predict wrestlers' injuries. Therefore, the use of these tests is not recommended to evaluate the risk of injury in this population.
Research in Medicine, May 10, 2011
Journal of exercise science and medicine, Feb 20, 2019
The risk of injury in football is high. Many researchers have introduced muscle strength as one o... more The risk of injury in football is high. Many researchers have introduced muscle strength as one of the most important internal risk factors, but few studies have examined the relationship between the isometric strength of muscles and incidence of injuries. Therefore, the aim of this study was to examine the relationship between isometric strength of lower extremity muscles and the incidence of injuries in football players and the power to predict these injuries. The sample of this study included 73 football players under 21 years of age. Before the beginning of the season, the anthropometric dimensions and isometric strength of lower extremity in dominant leg of each player were measured by Isokinetic device (Biodex system 4), then each player was followed up for 8 months and their injuries were recorded. The results of Cox regression test showed no significant relationship between isometric strength of the measured muscles and the incidence of injuries in lower extremity. According to these results, it is suggested that medical and technical staff of football teams use isometric tests to identify high risk players. Other strength evaluation methods such as isokinetic and isotonic strengths may be more effective.
The Relationship Between Spinal Column Malalignment With Dynamic Posture Control
Journal of Biomechanics, 2007
... Dynamic Posture Control Hadi Akbari 1 , Fariborz Hovanloo 2 , Ali Reza Rabiee Zade 1 ... Abst... more ... Dynamic Posture Control Hadi Akbari 1 , Fariborz Hovanloo 2 , Ali Reza Rabiee Zade 1 ... Abstract: the purpose of this study was to examine the relationship between spinal column malalignment with dynamic posture control(measured using star excursion balance test). ...
Iranian Journal of Endocrinology and Metabolism, Jul 10, 2016
Introduction: Since obesity and overweight have dramatically increased in recent years, the purpo... more Introduction: Since obesity and overweight have dramatically increased in recent years, the purpose of this study was to compare the effects of hypoxia on responses of PYY3-36 and the appetite to interval exercise among overweight individuals. Materials and Methods: Eight healthy male subjects (age, 22.14±2.11 yrs; height,175.28±7.69 cm; weight, 87.03±5.95 kg; BMI, 28.4±1.5 kg/m2) voluntarily participated in the study and performed an exercise protocols (cycling) in noromxic and hypoxic conditions on two separate sessions (Counterbalance) with a one week interval. Interval exercise included 5 repetitions of 4-min activity at 85%of HRmax, followed by 2min active restat 50% of HRmax. The environmental and training conditions were kept constant in two sessions, with the exception that the interval exercise was performed with 15% reduction in oxygen partial pressure in a hypoxic trial. Blood samples were taken before and after exercise (10, 20, 40, 60 and 80 minutes) and were analyzed for measuring the PYY3-36 using the ELISA technique. Results: Environmental conditions did not induce significant effect on PYY3-36 responses to interval exercise (P=0.1), though, exercise increased the PYY3-36, especially in normoxic conditions. In addition, although there was a reduction in the appetite following the two trials, environmental conditions had no significant effect on appetite (p=0.872). Conclusion: Interval exercises increase circulating levels of PYY3-36 and reduce appetite, irrespective of the environmental conditions (normoxia or hypoxia) in which the exercise is performed.
DergiPark (Istanbul University), Dec 31, 2016
Normal curvature of the spine might be changed as a result of its non-fixed feature. The aim of t... more Normal curvature of the spine might be changed as a result of its non-fixed feature. The aim of this study was to investigate the relationship between height, weight and body mass index (BMI) with curvature of the spine kyphosis and lordosis in 12-15year-old male adolescents of Tehran. This was a correlational study in which 97 accessible healthy boy students from Tehran region 2 (13.8 ± 0.8 years old) participate were selected. After measuring height (157.4 ± 8.6 cm), weight (52.9 ± 11.9 kg) and calculating BMI (21.2 ± 3.9 kg/m 2), the spinal mouse was used to spinal assessment. To investigate the relationship between study variables Pearson correlation coefficient was used. The results of Pearson correlation coefficient showed there was no statistically significant relationship between study variables including height and kyphosis curvature (r=-0.047, p= 0.651), height and lordosis curvature (r=-0.026, r= 0.800), weight and kyphosis curvature (r= 0.015, p= 0.883), weight and lordosis curvature (r= 0.052, p= 0.610), body mass index and kyphosis curvature (r= 0.059, p= 0.566), and body mass index with lordosis curvature (r= 0.084, p= 0.413). Therefore, although it seems that anomalies of the spine have high prevalence among the students, the results of this study showed that height, weight and body mass index could not be considered as an appropriate criterion to associate of kyphosis and lordosis angles in the studied population.
Effects of Resistance Training Combined with Green Tea Treatment on Hyperglycemia and Lipid Profile in Diabetic Rats
Journal of Medicinal Plants, Mar 15, 2016
Background: Physical exercise and herbal treatment with antioxidant property induce a favorable e... more Background: Physical exercise and herbal treatment with antioxidant property induce a favorable effect on glucose metabolism in diabetic patients. Objective: The aim of the present study was to investigate the effects of resistance training combined with green tea extract consumption on blood glucose and lipid profile in diabetic rats. Methods: Forty male Wistar diabetic rats aged 5 months and weights 290 ± 20 were divided into 4 groups named as: resistance training, resistance training + green tea, green tea and control. The resistance training and resistance training + green tea groups engaged in exercise for 5 weeks with three times per week moving up the ladder with weight hanging their tail. Green tea extract (100 mg/kg) was gavaged once a day for 5 weeks. Forty eight hours after the last training session and green tea gavages, the fasting blood samples was collected for determination of blood glucose, cholesterol, LDL-C, HDL-C and triglyceride levels. Results: Fasting blood glucose level significantly decreased in all three groups compared with control group, where as triglyceride, cholesterol and LDL-C level significantly decrease in resistance training + green tea group compared to control group. Conclusion: Green tea extract and resistance training improve hyperglycemia and in combination improve lipid profile in diabetic rats.
The effect continuous high-intensity interval training in hypoxia-normobaric and normoxi condition on serum cytokines in response to exhaustion exercise
EBNESINA, Jan 15, 2015
Bimonthly Journal of Hormozgan University of Medical Sciences, Jan 15, 2010
Introduction: Although exercise his effects on human immune system, but its causes is not signifi... more Introduction: Although exercise his effects on human immune system, but its causes is not significantly cleared yet. This study is aimed to investigate the effect of exercise with moderate and high intensity, on changes of respiratory burst activities and neutrophil counts in college judoists. Methods: 10 male college judoists participated in this quazi-experimental study. Subjects run on a treadmill for 60 min at 45% (low-intensity exercise) in first week and in second week run with 75% (high-intensity exercise) heart care. Blood was drawn immediately before and after exercise. Paired t-test was used for data analysis by means of SPSS 11.5 and P<0.05 was the significance level. Results: The result showed that, increase in neutrophil count and neutrophil respiratory burst activities, after high-intensity exercise, is significant (P<0.05), whereas, this was not observed significantly after low intensity exercise. Conclusion: An increase in neutrophil count and respiratory burst activities were significantly associated with high intensity exercise, however, the effect of low intensity exercise was not significant.
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Papers by Fariborz Hovanloo