Kharazmi University Research in Sport Medicine and Technology 2252-0708 2588-3925 14 12 2016 10 1 Comparison of selected biomechanical parameters and support foot injury during soccer instep kick by preferred and non-preferred lower limbs of the novice players 1 9 FA Mostafa Haj Lotfalian mostafa.h.lotfalian@gmail.com Y Mahdi Kargarfard N Heydar Sadeghi N Sajjad Mohammadi N 10.18869/acadpub.jsmt.14.12.1 Support foot position is one of the important factors which can affect instep kick quality and ankle joint injury. The aims of this study were to examine the support foot parameters in maximal instep kicking with the preferred and the non-preferred leg and research on risk factors for ankle joint injury in amateur futsal players. In this semi experimental study, twelve young and novice futsal players performed maximal speed place kicks with the preferred and the non-preferred leg. Average of the subjects individual characteristic have contained, age : 21/2±1/5 years, weight : 67/6±5/5 Kg and height :176±4/2 cm. Athletes were kicking the ball towards the goal from 10 meters. amount of support foot pressure were calculated at 300 Hz. To calculate injury of ankle joint, Forces, impulses, position of the fixed leg and maximum pressure of the lateral and medial portions of the foots were determined. Results indicated a significant difference in amount of subtalar joint range of motion. Higher range of motion in dominant leg were caused by a greater flexibility and coordination in this side of the body. In addition there were no significant different in impact of anterior, middle and posterior portion of fixed legs between two support foot. In contrast the maximum pressure in lateral side of non-preferred leg, was significantly more than other foot. In addition, the maximum force in non-preferred leg occurred prior then other foot. These problems can exacerbate ankle injury risk. Because the subjects were novice and they do not have appropriate neuromuscular coordination, can’t show a good movement pattern in non preferred leg. Hence, the absence of neuromuscular coordination can lead to energy loss and high pressure coming into the body, especially the feet and it can exacerbate injuries.  In a nutshell, amateur subjects indicated higher quality of­ biomechanical parameters in support foot of the preferred leg. Also likelihood of ankle sprain in dominant foot was less than other. Also generalization of these results to semi-professional and professional players, need further research. Biomechanics, Instep Kick, Support Foot, Preferred and Non-Preferred Foot, Foot Pressure http://jsmt.khu.ac.ir/article-1-177-en.html http://jsmt.khu.ac.ir/article-1-177-en.pdf

Kharazmi University Research in Sport Medicine and Technology 2252-0708 2588-3925 14 12 2016 10 1 Study of changes in adiponectin, leptin, and plasma lipid profile of Inactive men the result 24 session, playing futsal 11 22 FA Reza Amini Amini.reza@ymail.com Y Hamid Rajabi N Mohamad Reza Amir Seifadini N Koros Divsalar N 10.18869/acadpub.jsmt.14.12.11 The aim of the study, study of Changes in adiponectin, leptin, and plasma lipid profile of Inactive men the  result 24 session, playing futsal. In this study, 20 healthy men 20 to 30 years old, the experimental group (age: 23/5±2/58, weight: 69/36±14/48, body composition: 22/82±4/41) of controls (age: 24/6±2, weight: 68/22±12/71, body composition: 21/99±3/58) inactive randomly divided into control and experimental groups. Experimental groups in each session, indoor futsal training program for eight weeks and will run three sessions per week, while the control group had normal activity. Before the training program, and 48 h after the last session of play, 5 ml blood samples for measurement of adiponectin, leptin, and plasma lipid profile, blood was collected from the participants. After 48 hours of the last training session before the test was re-sampled in the same conditions. T-test results showed that exercise increased adiponectin and high-density lipoprotein and decreased leptin, low density lipoprotein, lipoprotein (a), triglycerides and cholesterol are, however, differences in adiponectin was not significant (P≤0.05). Overall, this study can be taken that these exercises in a short period of eight weeks futsal, adiponectin does not cause significant changes but the significant changes in leptin, high-density lipoprotein, low density lipoprotein, lipoprotein (a), triglycerides and cholesterol in the blood plasma.   Adiponectin, Leptin, Lipid Profile, Futsal http://jsmt.khu.ac.ir/article-1-178-en.html http://jsmt.khu.ac.ir/article-1-178-en.pdf

Kharazmi University Research in Sport Medicine and Technology 2252-0708 2588-3925 14 12 2016 10 1 Comparison of posture in elite female taekwondo players and non-athletes 23 31 FA Mahsa Hakimipour m.hakimipoor@ut.ac.ir Y Roshanak Irandoost N Hooman Minoo Nezhad N Reza Rajabi N 10.18869/acadpub.jsmt.14.12.24 Specificity of physical exercises is one of the main factors which could affect musculoskeletal system. The purpose of this research is to make a comparison about postural abnormalities of the spine and lower limbs between female taekwondo athletes and non-athletes. Samples of current research were 50 female black-belt taekwondo athletes and 50 non-athletes. To measure kyphosis and lordosis, flexible ruler was used; also to determine the angle of forward head posture and scoliosis, photogrammetry was used, and to determine knee and foot deformities caliper and navicular drop methods were used respectively. To compare two groups, independent t test was used. The results of independent t test showed that amount of lumbar lordosis (47.90°) in taekwondo athletes is significantly higher than that of non-athletes (44.04°). Also amount of scoliosis (3.52°) in taekwondo athletes was significantly higher than that of non-athletes. Also distance of internal condyle )3/26 CM) of taekwondo athletes was significantly higher than that of non-athletes)1/91 CM)(P≤0.05). But no significant difference was observed between two groups in terms of forward head posture, kyphosis, distance of internal malleolus, and navicular drop. Based on the results of this research it is possible to express that taekwondo due to type of its common exercises and could have impact on posture of its athletes. Taekwondo, Posture, Malalignment http://jsmt.khu.ac.ir/article-1-179-en.html http://jsmt.khu.ac.ir/article-1-179-en.pdf

Kharazmi University Research in Sport Medicine and Technology 2252-0708 2588-3925 14 12 2016 10 1 Comparison of the lumbosacral angles in state of standing on the various slopes, in the healthy and low back pain females 33 43 FA Sara Golnezhad Golnezhad.sara@gmail.com Y Roz Fouladi N Naser Behpour N Maryam Barzin N 10.18869/acadpub.jsmt.14.12.33 This study aim to investigate the effect of different slops on mechanical lumbosacral angles and lumbar stability of healthy and mechanical low back pain (LBP) persons. This case- control study was performed on 38 females (18 LBP and 20 healthy subjects) who were referred to the Hospital in sari. At the beginning, Subjects’demographic data were recorded. In order to measure lumbosacral angles and  lumbar spine stability evaluation, three lateral radiography plots in state of standing on various slope (­ο, +3.7, -3.7) were prepared. There were no significant differences between the biomechanical lumbosacral angles by standing on the various slopes, within and between 2 groups (LBP and healthy females) (p≥0.05).There was more lumbar instability in females with LBP and lumbar mechanical stability was significantly difference between 2 groups in each slope (P +=0.023, P –=0.009, P 0=0.004). Although, lumbar stability was not significantly different within each LBP and healthy groups, on the various slopes (p≥0.05). It seems that lumbar instability may increases in mechanical LBP, that won’t manage by various levels of slop. Low Back Pain, Lumbar Spine Stability, Lumbosacral, Negative Slope, Positive Slope http://jsmt.khu.ac.ir/article-1-180-en.html http://jsmt.khu.ac.ir/article-1-180-en.pdf

Kharazmi University Research in Sport Medicine and Technology 2252-0708 2588-3925 14 12 2016 10 1 Comparison of plantar pressure distribution between the right and left foot and their correlation with height and weight at wrestlers 45 57 OTHER Raghad Memar Y Shiva Noori Nori_sport@yahoo.com N Since, sports activities are likely to be changes in various parameters of plantar pressure distribution during walking to create, This study compared patterns of plantar pressure distribution between right and left feet and their relationship with anthropometric parameters. 10 elite wrestler with the average and standard deviation of age: 23.6±3.33 yrs, height: 173.5±7.67 cm and mass: 83.3±21.8 kg voluntarily participated as subjects in this study. EMED-AT2 System for plantar pressure analysis, of parametric statistical methods paired t-test to compare parameters between the right and left leg and also of the Pearson methods for investigating correlation between variables was used. The only in the contact area parameter between the right leg and left at 4th mask significant differences were found (p≤0.05, ES=0.03). Also positive and significant correlation between height and mass with all the parameters were found (p≤0.01, p≤0.05) and in the heel area the correlation between maximum force in the right foot with height (medial heel r2=0.45 ; lateral heel r2=0.68) and weight (medial heel r2=0.56 ; lateral heel r2=0.8) and in the left foot with height (lateral heel r2=0.53) and weight (lateral heel r2=0.55) was reversed. (p≤0.05). Considering the lack of significant differences in plantar pressure parameters between the right and left foot, it could be argued, in wrestling foot demand function is the same. Also this research confirmed the results previous study indicating the absence of dominant leg in wrestling. Pedobarography, Wrestling, Elite, Sole of the Foot http://jsmt.khu.ac.ir/article-1-295-en.html http://jsmt.khu.ac.ir/article-1-295-en.pdf

Kharazmi University Research in Sport Medicine and Technology 2252-0708 2588-3925 14 12 2016 10 1 The relationship between static lower extremity alignment and Injuries in adolescent soccer players 59 70 FA Mostafa Zarei M_zareei@sbu.ac.ir Y 10.18869/acadpub.jsmt.14.12.59 The incidence of lower extremity injuries in young soccer players is high, but the risk factors for injuries are unknown. Thus, the aim of this study was to investigate relationship between static lower extremity alignment and injuries in adolescent soccer players. Four teams (78 players) playing at Tehran Asia vision adolescence primer league (14-16 years old) participated in this study. Before entering the season Navicular drop, quadriceps angle, knee hyperextension, genu varum and body mass index was measured. Players were monitored for musculoskeletal injuries through a season (7-month period). overall injury rate was 8.7 injuries/1000 player-hours (95% CI=7.01-10.10). Logistic regression modeling indicated that Navicular drop in preferred foot (OR=4.5; p=0.001), Q angel in preferred leg (OR=2.77; p=0.048), and genu varum (OR=4.06; p=0.021) were all associated with injuries but no association was found in other parameters. Players had an approximately 3.47 times greater chance of suffering a lower extremity injury if they have Navicular drop greater than 1.5 centimeter and approximately 2.77 times greater chance of suffering injury if they have Q angel greater than 15.5 degrees. These findings show that multiple anatomic measures such as Navicular drop, genu varum and Q angle can predict soccer players’ injuries. Results of this study are valuable for coaches and players for injury prevention. Lower Extremity, Injury, Soccer, Risk Factors http://jsmt.khu.ac.ir/article-1-182-en.html http://jsmt.khu.ac.ir/article-1-182-en.pdf