2024-03-28T14:30:40Z
https://sshr.ut.ac.ir/?_action=export&rf=summon&issue=3071
Sport Sciences and Health Research
SSHR
2013
4
2
The Comparison of Dynamic and Static Footprint Parameters in Overweight Children
amirhosien
Barati
Reza
Azimi
Hosien
Nabavi nik
Mihsen
Ali Darchini Maragheh
Foot structure like other features of human body is various among different age groups and any changes in foot structure influence the function of other joint. Hence, many researchers are trying to prove the relationship between foot role and its pathology. The present study tried to compare footprint parameters (footprint angle, Staheli’s index, Chippaux – Smirak index and arch index) in the static and dynamic positions in overweight children. In this quasi-experimental study, 12 male overweight children (age range 10-12) were randomly selected. To measure the footprint parameters in two positions of static and dynamic, an ink - paper system was used. Then, ImageJ software was used to measure footprint angle, Staheli’s index, Chippaux – Smirak index and arch index. Mean and standard deviation were used to describe the data and the independent t test was used to compare the parameters. The findings showed no significant difference among angular parameters (P>0.05), but a significant difference in linear parameter between the static and dynamic positions (P
Chippaux – Smirak Index
dynamic
Footprint.
Foot Type
static
2013
02
19
5
18
https://sshr.ut.ac.ir/article_30056_08ecb8854d65ca9fe0798aab47d62061.pdf
Sport Sciences and Health Research
SSHR
2013
4
2
Incidence of Acute Injuires of Iranian Professional Dragon Boat Female Athletes
Efat
Bambaechi
Kimiya
Mahdaviyani
Ali Bagher
Nazariyan
هدف پژوهش حاضر بررسی میزان شیوع آسیب های حاد ورزشکاران حرفه ای دراگون بوت زن ایران بود. با استفاده از برگة گزارش آسیب، اطلاعات مربوط به شیوع، علل، زمان بروز و نوع آسیب 50 نفر از قایقرانان زن حرف ای ایران (میانگین ± انحراف معیار؛ سن 9/2 ± 6/22 سال، قد 160 سانتی متر و وزن 9/5 ± 58 کیلوگرم) براساس مواد شرکت کننده و محل نشستن پاروزنان در قایق مربوطه جمع آوری شد. از آزمون کای اسکور برای تجزیه و تحلیل داده ها استفاده شد. نتایج نشان داد که گرفتگی عضلانی شایع ترین آسیب ها و کمترین آنها مربوط به دررفتگی و متورم شدن کیسه های زلالی بود (هر کدام 8/0 درصد) و تفاوت بین آنها از لحاظ آماری معنادار بود (05/0 P
Dragon Boat.
Injury
Women
2013
02
19
19
30
https://sshr.ut.ac.ir/article_30057_c99c55f88d2f66ed50c3befa67611476.pdf
Sport Sciences and Health Research
SSHR
2013
4
2
The Effects of a Selective Corrective Program on the Scapula and Shoulder Joint Posture in Girls with Rounded Shoulder
Mahtab
Najafi
Naser
Behpoor
The scapula influences shoulder performance. In fact, scapula posture has a direct relationship with scapula stability and muscular power. The purpose of this research was to determine the effect of a training program on rounded shoulder abnormality (RS) and scapula posture in female students. A posture grid was used to select the girls with rounded shoulders (RS); 20 students with RS (10.78±0.7 years, 143.7±5.37 cm, 34.5±4.93 Kg) were randomly selected and completed the consent form. Rounded shoulder was measured by double square and inter-scapula distance by Vernier caliper. According to shoulder posture (the shoulder distance from the wall), subjects were divided into two control and experimental groups. To determine the strength of scapula stabilizers, lateral scapular test (LSST) was used. Experimental subjects performed the treatment protocol including stretch-strength training for six weeks, three days a week. Data analysis showed that rounded shoulder significantly decreased by 12% (p= 0.008) in the experimental group, but there was no significant difference in the control group (p=0.462). Inter-scapula distance in the experimental group significantly decreased by 9% (p=0.001), but there was no significant difference in the control group (p=0.177). The result of symmetry of scapula bones in zero and 45 degree angles in the experimental group was significant (p=0.028). The results showed that the selected corrective exercises improved rounded shoulder posture, distance and symmetry of scapula bones (the increase of strength of scapula stabilizers) of girls aged between 10 and 12 with RS.
Corrective Exercises
Inter-Scapula Distance
Lateral Scapular Slid Test (LSST)
Rounded Shoulder
Vernier Caliper.
2013
02
19
31
47
https://sshr.ut.ac.ir/article_30058_c5ef4cc191632a79209e00a55935dbd1.pdf
Sport Sciences and Health Research
SSHR
2013
4
2
The Effect of Patellofemoral Pain Syndrome in Athletes on Electromyographic Activity Ratio of Patellar Stability Muscles during Maximum Voluntary Isometric Contraction
Farhad
Rezazadeh
Hooman
Minoonejad
Shirin
Aalie
Aidin
Valizadeh
Patellofemoral pain syndrome is a common condition athletes suffer from. One of the predictive factors of this syndrome is reduced activity ratio of vastus medialis oblique (VMO) to vastus lateralis (VL). The aim of this descriptive study was to compare the electromyographic activity ratio of vastus medialis oblique to vastus lateralis during maximum voluntary isometric contraction of quadratus femoris on Biodex between athletes with and without patellofemoral pain syndrome. For this purpose, 16 national team male athletes (volleyball, handball and taekwondo) with patellofemoral pain syndrome aged between 18 and 30 and 16 healthy male athletes voluntarily participated in this study. EMG activity of VMO and VL muscles were recorded by surface electrodes and telemetric EMG system on Biodex at 15, 30 and 45 degrees of knee flexion and VMO: VL EMG activity ratio was calculated. To compare muscle activity ratio between the two groups, t test was used. The results showed no significant difference in the electrical activity of VMO and VL muscles in knee flexion angles between athletes with and without patellofemorl pain syndrome (P>0.05). The EMG ratio of VMO:VL was higher than 1 in both groups, but this ratio was higher in healthy athletes. Finally, it seems that sporting activities as a preventive factor impede disturbance of electrical activity of VMO that prevent reduction of VMO: VL ratio.
athlete
Electromyography
Patellofemoral Pain Syndrome
VMO: VL Ratio
2013
02
19
49
62
https://sshr.ut.ac.ir/article_30059_afe1b0f5cb1724451a63e2d8e47c2579.pdf
Sport Sciences and Health Research
SSHR
2013
4
2
The Effect of Core Stability Training on Y Balance Test Components in Indoor Soccer Players
ebrahim
Mohammad Ali Nasab
mansour
sahebozamani
The aim of this study was to investigate the effects of core stability training on the Y balance test components in indoor soccer players of Mazandaran University. 24 subjects (age 22.67 yr, weight 70.12 kg, height 1.75 m and BMI 22.70) from Mazandaran University were voluntarily participated and randomly divided into experimental (n=12) and control(n=12) groups. At the onset of the study, the dynamic balance was measured by Y balance test and core stability by some field core stability tests. Experimental group performed the core stability protocol three days per week for six weeks while control group did not perform any training. At the end of the protocol, dynamic balance and core stability were measured again. Independent t test was used to analyze data. The results of Y balance test showed a significant difference in anterior and posterior-interior and no significant difference in posterior-exterior components between the two groups. In addition, significant differences were observed in scores of Sorensen test, trunk flexion, right bridge and hip abduction between the two groups. It can be concluded that core stability training can improve interior and posterior-interior components of Y balance test through strengthening core stability indexes and more training should be applied in posterior-exterior components.
Core Stability Tests.
core stability training
Dynamic balance
Excursion Distance
Y Balance Test
2013
02
19
63
86
https://sshr.ut.ac.ir/article_30060_6c4d07aaa247774474f861ec30a8fb9f.pdf
Sport Sciences and Health Research
SSHR
2013
4
2
The Comparsion of the Electromyography of Leg Muscles and Peak Vertical Ground Reaction Forces during Single Leg Drop Landing between Men with Genu Varum Deformity and Normal Knee
Mohammadreza
Mahaki
seyedsadredin
shojaedin
Raghad
Memar
Mehdi
Khaleghi Nazji
The aim of this study was to compare the electromyography of leg muscles and the peak vertical ground reaction forces during single leg drop landing of men with genu varum deformity and normal knee. 26 physical education male students participated in this research, including 13 subjects with genu varum and 13 with normal knee. Electromyographic activity of some leg muscles along with the data of ground reaction forces were measured. Genu varum deformity was measured and recorded by a caliper. Subjects performed single-leg landing from 30cm height onto a force platform. Landing motions were divided into two phases: 100 ms preceding ground contact and 100 ms after ground contact (absorption phase). Independent t test was administered for the statistical analysis of data using SPSS software 16 (P?0.05). The results showed no significant difference in the activity of the soleus, medial gastrocnemius and anterior tibialis muscles during pre-landing phase ((P?0.76), (P?0.09) and (P?0.77) respectively). No significant difference was found in the activity of soleus and anterior tibialis muscles during absorption phase ((P?0.68) and (P?0.92) respectively). However, the activity of medial gastrocnemius was significantly different between the groups (P?0.04). No significant difference was found in the peak vertical ground reaction force during metatarsal contact (P?0.22). However, the peak vertical ground reaction forces in calcaneus contact (P? 0.003) between the groups were significantly different. The results showed that subjects with genu varum had lower activity in medial gastrocnemius muscle during the absorption phase of landing which may insert bigger forces into their lower extremity in comparison with normal subjects; in long-term, this may result in injury and occurrence of articular degenerative diseases.
Electromyograghy
Genu varum
leg muscles
Peak vertical ground reaction forces
Single leg drop landing
2013
02
19
87
106
https://sshr.ut.ac.ir/article_30061_c7581fdedeaa748b4089cdd7f46da67a.pdf