1 2252-0708 Kharazmi University 619 sport physiology The Interactive Effect Of Six Weeks Of Resistance Training And Whey Protein Supplementation On PRAS40 Gene Expression And Muscle Hypertrophy In Male Wistar Race Rats shahidi fereshteh b ahmadi hamide c kashef majid d b Associate Professor Department of Exercise Physiology, Department of Exercise Physiology, Faculty of Sports Sciences, Shahid Rajaei Teacher Training University, Tehran, Iran c Master's Degree of Exercise Physiology, Department of Exercise Physiology, Faculty of Sports Sciences, Shahid Rajaei Teacher Training University, Tehran, Iran. d Professor Department of Exercise Physiology, Department of Exercise Physiology, Faculty of Sports Sciences, Shahid Rajaei Teacher Training University, Tehran, Iran. 1 12 2024 22 28 1 14 15 09 2023 15 01 2024 PRAS40 is expressed in all types of body tissues and is present in the muscle growth pathway and has multiple phosphorylation sites. Studies have shown that PRAS40 plays a role in regulating cell growth. The aim of this study was to evaluate the effect of six weeks of resistance training and whey protein supplementation on PRAS40 and biceps hypertrophy in male Wistar rats Method:This developmental experimental study was carried out in 1402 year. 23 eight-week-old male Wistar rats (250 grams) were randomly divided into three groups: resistance training, resistance training+ supplement, and control. After two weeks of orientation, the training groups completed six weeks of resistance training, climbing the ladder five days a week. The training +supplement group received whey protein (2.05 g/kg dose) through gavage. 48 hours after the last training, a blood sample was taken and the gastrocnemius muscle was removed, frizzed, and saved to evaluate the expression of the PRAS40 gene. Findings: Six weeks of resistance training with whey supplement caused a significant decrease in PRAS40 gene expression and an increase in body and muscle weight in the exercise and supplement + exercise groups. Conclusion: The resistance training protocol along with her supplement can lead to muscle hypertrophy and activate the anabolic pathways in the muscle through the suppression of the PRAS40 pathway.
630 sport physiology The Effect Of Regular Physical Activity On The Amino Acid Profile Of Individuals Living In The Provinces Affected By Dust Particles In Iran Fashi Mohamad e Seraji Afshin f e PhD, Department of biological sciences in sports faculty of sports science and health Shahid Beheshti University, Tehran, Iran f PhD, Department of biological sciences in sports faculty of sports science and health Shahid Beheshti University, Tehran, Iran 1 12 2024 22 28 15 30 27 11 2023 22 01 2024 Aim: The purpose of this research is to examine the impact of regular physical activity on the amino acid profile of individuals living in the provinces affected by dust particles in Iran. Methods: There were a total of 50 inactive healthy men, with an average age of 31.64±1.5 years and a body mass index of 26.33±5.6, from three provinces in Iran: Khuzestan (n=15), Ilam (n=15), and Kermanshah (n=20) randomly assigned to two control and regular physical activity groups. Prior to the study, 48 hours prior to the occurrence of dust particles, and after the study amino acids, fat percentage, maximum oxygen consumption, were measured. Results: It was found that time (pre-test - May 12, 2023) had a significant effect on amino acids, maximum oxygen consumption, body fat percentage in the training group (p<0.05). In the control group, there was no significant difference in the amino acid, maximum oxygen consumption, body fat percentage, (p>0.05). In terms of body fat percentage, there was a significant difference between the control and exercise groups (p=0.01), as well as maximum oxygen consumption (p=0.01). Conclusion: This study has demonstrated that regular exercise training reduce dust particle damage in those exposed to dust particles. 561 آسیب شناسی و حرکات اصلاحی The Effect Of 8 Weeks Of Feedback And Feed Forward Neuromuscular Training On Balance And Strength In Female With High Risk Of Injury afzali nasab gorohi roghayeh g Daneshjoo Abdolhamid h sahebozamani mansour i g Master of Sports Injuries and Corrective Exercises, Faculty of Sports Sciences, Shahid Bahonar University of Kerman, Kerman, Iran. h Associate Professor, Department of Sports Injuries and Corrective Exercises, Faculty of Sports Sciences, Shahid Bahonar University of Kerman, Kerman, Iran i Professor, Department of Sports Injuries and Corrective Exercises, Faculty of Sports Sciences, Shahid Bahonar University of Kerman, Kerman, Iran 1 12 2024 22 28 31 51 30 08 2023 29 01 2024 The purpose of the present study was to evaluate the effect of feedback and feed forward neuromuscular training on balance and isometric strength in female basketball players with a high risk of injury in Kerman.20women basketball players of Kerman city purposely selected and who were randomly divided into two groups of feedback and feed forward and performed intervention for 8 weeks, three sessions per week. Dynamic balance and isometric knee strength was measured using Biodex system and MMT device. One way ANCOVA was used for data analyze. The results showed significant differences between pre-post test balance Overall Stability and  internal/external balance and Anterior/Posterior balance (P=0.001).Significant difference was observed in the strength of quadriceps muscle and hamstring between the two groups of feedback and feed forward exercises (P≥0.05).Isometric Quadriceps strength and hamstring in the post- test showed an significantly improvement of  in feedback and feedforward group compared to the pre-test (P=0.001).It can be concluded that neuromuscular training can enhanced balance and isometric strength, of women and training with feedback has more important  than training with feedforward. 580 آسیب شناسی و حرکات اصلاحی The Effect Of An Eight-Week Anterior Cruciate Ligament Injury Prevention Program On The Performance Of Elite Female Kabaddi Players nemati faeze j zareei mostafa k barzegar bafrouei morteza l j Master of Sports Injury and Corrective Exercises, Faculty of Science and Health, Shahid Beheshti University, Tehran, Iran. k Associate Professor, Faculty of Science and Health, Shahid Beheshti University, Tehran, Iran. l PhD Student in Sports Injury and Corrective Exercises, Health and Sports Rehabilitation Department, Faculty of Sports Science and Health, Shahid Beheshti University, Tehran, Iran. 1 12 2024 22 28 52 72 11 05 2023 05 02 2024 This study investigates the impact of an anterior cruciate ligament (ACL) injury prevention program on the performance of elite female kabaddi players. Given the debilitating consequences of ACL injuries, the primary aim is to evaluate the effects of an eight-week prevention program on improving the performance of these athletes. This quasi-experimental research was conducted on 27 elite female kabaddi players (aged 18 to 24 years), who were divided into intervention and control groups. The intervention group underwent an eight-week injury prevention training program. The tests included T-test, 20-meter run, Y-balance test, flexibility, hopping, and movement screening. Data analysis was performed using Levene's test and ANCOVA. The results of the ANCOVA indicated that the intervention group scored significantly better than the control group in the Y-balance test for both the right (p=0.002) and left (p=0.001) legs, single-leg hopping (right leg: p=0.004 and left leg: p=0.001), crossover hopping for the right leg (p=0.023), and the sit-and-reach flexibility test (p=0.003). However, no significant differences were observed in the speed, agility, triple hopping, and functional movement screening (FMS) tests. Results: The findings suggest that the eight-week PEP program has a significant impact on dynamic balance for both the right and left legs, hopping (single-leg and crossover hopping for the right leg), and hamstring and lower back flexibility in elite female kabaddi players. However, it did not have a significant effect on left leg hopping, speed, agility, or FMS scores. 579 sport physiology The Effect Of HIFT Training And Hypoxia Mask On Maximum Oxygen Consumption And Respiratory Efficiency Of the Players Of Iran's Men's National Ice Hockey Team Timaji Danial m Ghazalian Farshad n Gholami Mandana o Abednatanzi Hossein p m PhD Student, Department of Exercise Physiology, Science and Research Branch, Islamic Azad University, Tehran, Iran. n Associate Professor, Department of Exercise Physiology, Science and Research Branch, Islamic Azad University, Tehran, Iran. o Associate Professor, Department of Exercise Physiology, Science and Research Branch, Islamic Azad University, Tehran, Iran. p Assistant Professor, Department of Exercise Physiology, Science and Research Branch, Islamic Azad University, Tehran, Iran. 1 12 2024 22 28 73 88 10 05 2023 10 02 2024 In order to remain competitive, athletes and coaches are constantly looking for ways to enhance performance. The aim of this study was to investigate the effect of HIFT training and hypoxia mask on maximum oxygen consumption and respiratory efficiency of the players of Iran's men's national ice hockey team. In this semi-experimental study, 14 players of the Iranian national ice hockey team were divided into two HIFT and HIFT exercise with hypoxia mask groups, then both HIFT groups and HIFT exercise with hypoxia mask, performed HIFT training sessions with 30 seconds repetition and five sets for about an hour, three sessions a week for six weeks. maximum oxygen consumption (VO2max) and respiratory efficiency (vE/VCO2) were measured using gas analyzer. The results showed that HIFT and HIFT with hypoxia mask have an increasing effect on VO2max, but there was no difference between the effect of HIFT and HIFT with hypoxia mask on VO2max (P=0.390). vE/VCO2 decreased in both groups, but there was no difference between the effect of HIFT training and hypoxia mask on vE/VCO2 (P<0.05). According to the similar respiratory performance benefits, elite male ice hockey players can benefit from HIFT training. 603 آسیب شناسی و حرکات اصلاحی The Effect Of Pilates Exercises On Postural Control And Proprioception Of Lower Limb Joints In Girls 18-25 Year-Old Ghorbani Maryam Yaali Rasoul Ph.D of Sport Injuries and Corrective Exercise, Faculty of Physical Education and Sport Sciences, Kharazmi University of Tehran, Tehran, Iran. Department of Motor Behavior, Faculty of Physical Education and Sport Sciences, Kharazmi University of Tehran, Tehran, Iran. 1 12 2024 22 28 89 108 24 07 2023 12 02 2024 The purpose of this research was the effect of Pilates exercises on balance and proprioception in female students. 98 female students voluntarily participated in this study. Of these, 91 healthy students were placed in the experimental group and 7 students with sports exemption were placed in the control group. The position senses of ankle and knee joints was measured using the active reconstruction test of the ankle and knee angles and static balance was measured using the Sharpened Romberg test before and after 16 intervention sessions. The results of Wilcoxon test showed that in the experimental group, static balance increased significantly in the post-test compared to the pre-test. The position sense of dorsiflexion, plantarflexion of ankle joint and knee flexion position sense in the experimental group increased significantly in the post-test. Also, the results of the covariance test showed that there is a significant difference between the two groups in the post-test in the variables of static balance and position sense of dorsiflexion and plantarflexion of ankle and position sense of knee flexion that according to the adjusted average, the experimental group performed better than the control group. The results showed that Pilates exercises are suitable for improving ankle and knee proprioception and improving postural control in teenagers and young adults. 637 sport physiology The Effect Of Six Weeks Of Aerobic Activity On The Motor Fitness Of Inactive Young Girls ardakanizadeh maliheh Rahimi Alireza vesaliakbarpour Leila Department of sport sciences, Faculty of human sciences, Damghan University, Semnan, Iran. Associate Professor, Department of exercise physiology, Faculty of Sport sciences, Bu-Ali Sina university, Hamadan, Iran Ph.D of exercise physiology, Faculty of sport sciences, Bu-Ali Sina university, Hamadan, Iran. 1 12 2024 22 28 109 123 11 01 2024 19 02 2024 It seems that aerobic exercise in water is more effective in promoting motor fitness factors due to its greater resistance force compared to the dry environment. Accordingly, the aim of this study was to compare the effect of aerobic exercise in water and land on the physical fitness of inactive girls. Thirty non-athletic girls were randomly divided into two groups water and Land (n=15), and performed aerobic activity for six weeks (3 sessions/week) with 60-70% of maximum heart rate. Before and after aerobic activity, was calculated their explosive power using the vertical jump (Sargent), agility (4×9test), reaction (reaction time test), and the balance (static balance test). For compare pre- and post-test, and to compare post-test results in water and land, One-way ANOVA (p≤0.05). After aerobic activity (water and land) compared to before, significant improvement was found in the values of explosive power (p=0.001), agility (p=0.001) and static balance (p=0.003), while the comparison of training in water and land did not show a significant difference (p>0.05). It seems that aerobic activity (water and land) can affect explosive power, agility and static balance, but no effect on reaction, also there is no difference between the two environments. 614 آسیب شناسی و حرکات اصلاحی The Effect Of Eight Weeks Of Feedback Training Program On The Biomechanical Variables Of Athletes With Selected Motor Control Defects In Jump Landing Tasks Ashrafizadeh Mohadeseh norasteh Ali Asghar PhD, Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sports Sciences, University of Guilan, Rasht, Iran. Professor, physiotherapy department, Faculty of Medicine, Guilan University of Medical Sciences. 1 12 2024 22 28 124 151 30 08 2023 21 02 2024 Jumping motor tasks in people with motor control defects are probably associated with incomplete movement patterns, which can be related to non-collision injuries of the lower limbs. Therefore, the aim of the present study is to investigate the eight-week training program of feedback on the biomechanical variables of athletes with selected motor control defects in landing jump tasks. The present study is a randomized clinical trial study before and after the intervention. 34 male recreational athletes with movement control defects were selected based on the study criteria and then randomly assigned to control and feedback groups. To analyze the data, two-way analysis of variance and Bonferroni statistical tests were used for each movement task at a significance level of P < 0.05. The results of the study indicated an increase in the electrical activity of the VM and GM muscles in different phases of jumping in the feedback group. Also, the feedback group showed a decrease in knee valgus angle in the frontal plane (P < 0.05). The results of the present study showed that feedback can be used to correct incomplete movement patterns in jump-landing tasks. 633 آسیب شناسی و حرکات اصلاحی Investigating The Changes Of Some Internal Risk Factors Of Lower Limb Injuries In Teenage Taekwondo Athletes Before And After Applying The Fatigue Protocol Kalantariyan Mohammad Samadi Samaneh Beyranvand Ramin Department of Corrective Exercises and Sport Injury, Faculty of Sport Sciences, Shahid Rajaee Teacher Training University, Tehran, Iran Department of Sport Sciences, Faculty of Literature and Humanities, Lorestan University, Khorramabad, Iran. Department of Sport Sciences, Faculty of Literature and Humanities, Lorestan University, Khorramabad, Iran. 1 12 2024 22 28 152 172 05 01 2024 27 02 2024 This research aims to investigate the changes in static and dynamic balance and proprioceptive accuracy of knee and ankle joints of young taekwondo athletes before and after applying the fatigue protocol. The current research is semi-experimental. The research subjects were 20 teenage male taekwondo players (17/86±4/4 year, 174/37±5/2 cm, 65/61±6/1 kg) from the statistical population. Static and dynamic balance variables were measured respectively by Stork's static balance test and Y dynamic balance test, as well as the proprioception of the ankle and knee joints at 10 degrees of ankle dorsiflexion and 30 degrees of knee flexion, by the photographic method. Then the functional fatigue protocol was applied. After finishing the fatigue protocol, all the variables evaluated again. The results of the paired t-test showed that after applying the fatigue protocol, there is a significant difference between the average of static (P=0.028) and dynamic balance in all three anterior (P=0.001), posterior-medial (P=0.012) and posterior-lateral (P=0.009) directions as well as proprioceptive accuracy of knee joint (P=0.003) and ankle joint (P=0.001). It is recommended to all taekwondo coaches and athletes, to perform specialized training exercises in the field of taekwondo and according to the age of teenagers. 635 sport physiology Comparing The Effect Of Fatigue Induced By Endurance Running And Sprinting On The Knee Muscles Co-Contraction In Active Young Women: With The Approach Of Identifying The Origin Of Fatigue Ghazaleh Leila Salar Farahnaz sharifi Fatemeh Assistant Professor at Department of Exercise Physiology, Faculty of Sport Sciences, Alzahra University, Tehran, Iran. MSc in Exercise Physiology, Department of Sport Physiology, Faculty of Sport Sciences, Alzahra University, Tehran, Iran. Department of Sport Physiology, Faculty of Sport Sciences, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran. 1 12 2024 22 28 173 189 06 01 2024 05 03 2024 This study aimed to compare the effect of fatigue induced by endurance running and sprinting on the knee muscle co-contraction in active young women. Methodology: Thirteen active young women (20-30 years, BMI 20-25kg/m2) were randomly selected. Subjects performed fatigue protocols during two sessions with a four-day interval. The activity of the vastus-medialis and vastus-lateralis muscles was detected using an electromyography device before and after running 400-meter and 3000-meter during the execution of knee extension and their co-contraction was calculated. Two-way repeated measure was used to analyze the data. Results: There was no significant difference between the co-contraction of the selected muscles before and after sprinting (p=0.3) and endurance running (p=0.19) and no significant difference (p=0.85) between the difference in co-contraction rate in the pre-test and post-test of sprinting and endurance running. Conclusion: Since there was no difference between the effect of fatigue caused by sprinting and endurance running on the co-contraction of the selected muscles, likely, the involvement of central factors in the appearance of fatigue caused by 400-meter sprinting and 3000-meter endurance running is similar and insignificant. The emergence of fatigue after implementing both protocols may be more due to environmental factors. 618 sport biomechanic Introducing And Designing A Home Fitness Machine Without Weights With Digital Adjustment rahimi Mohammadreza Boroushak Neda Department of sports biomechanics, Sport Science Research Institute, Tehran, Iran. Assistant Professor, Research Institute of Physical Education and Sports Sciences 1 12 2024 22 28 190 205 14 09 2023 09 03 2024 This study focuses on the design, construction, and validation of a digital-adjustable, weight-free home fitness device for muscle training. The research adopted a mixed-methods approach, providing a comprehensive evaluation of the device's performance. Initially, existing equipment and resistance training methods were analyzed, gathering essential information for the preliminary design. Three-dimensional models and prototypes were developed using software such as Rhino Cross 6 and AutoCAD 2018. For validation, the device’s resistance was tested with a digital dynamometer in eight different settings, yielding a high validity with a correlation coefficient of 0.9. The reliability of the device was also assessed across three exercises (seated leg extension, seated chest press, and seated biceps curl) with 10 kg weights, repeated five times, resulting in a reliability coefficient of 0.8. These results indicate the device's high accuracy and consistent resistance. With precise digital adjustments and the capability for varied strength exercises, this device enables users to conduct effective, high-quality workouts at home, contributing to muscle strengthening and improved fitness. 636 آسیب شناسی و حرکات اصلاحی The Comparison Of The Effect Of 8 Weeks Of Corrective Selected Exercise And Combination Of Kinesiotapes And Tera Band On Adolescent Boys With Kyphosis khazaei reza Sahebozamani Mansour habibi ehsanolla jalali dehkordi Khosro pishgooie nafise parvaresh banafsheh Ph.d of corrective exercise and sport injuries, Faculty of Physical Education & Sport Sciences, Shahid Bahonar University of Kerman, Kerman, Iran. Professor ,Faculty of Physical Education & Sport Sciences, Shahid Bahonar University of Kerman, Kerman,Iran Professor, Department of Occupational Health Engineering, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran. Associate Professor of Sport Physiology, Department of Exercise Physiology, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran. Assistant professor in internal madicine, department of internal madicine, Shahid Bahonar University of Kerman, Kerman, Iran. Master of health sport student, Faculty of Sport Sciences, University of Bologna, Bologna, Italy. 1 12 2024 22 28 206 227 07 01 2024 17 03 2024 Background and Aims:The necessity and importance of such research, especially among the young is quite tangible. The purpose of the present study was to compare the effect of 8 weeks of corrective selected exercise and combination kinesiotaping and tera band training on the kyphosis angle of adolescent boys with kyphosis. Materials and Methods: In this quasi-experimental study, spinal deformity information of 36 boy students in gym of Esfahan city, 15-18year participated in this study. Then boy student’s participated in an 8-week corrective selected exercise and Combination of Kinesiotaping and Teraband، the end their deformity were evaluated again.For data analysis descriptive statistics ، T tests and SPSS Software was used.The angleof kyphosis in pre-test (48/8± 0/9) after using corrective selected exercise have had a significant reduction (46/9±0/8). Angle of kyphosis in pre-test (49. 1 ± 0.7) after using Combination of Kinesiotaping and Teraband have had a significant reduction (46/97±0/8). Conclusion:corrective exercises alone or in combination with new methods of training, the subjects had a positive impact on improving the kyphosis. But according to the results of this study, no significant difference was found between the corrective exercises with the combined method.