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2008, Prevalence
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7 pages
1 file
Background and aim: With respect to attachment and mechanical relationship of hamstring and calf muscles, interaction between their function is unavoidable. Inspite of prevalence of hamstring and calf muscles shortness, there is not any statistical data about the relationship of shortness of above-mentioned muscles in Iran. The aim of this study was to verify of this prevalence. Materials and methods: In this study 3308 healthy girls with age 3-17 years old participated. Length of calf muscles with dorsi flexion angle and hamstring with hip flexion angle (SLR) in both side were measured. Results: The prevalence of hamstring and calf muscles shortness with together was20% in right and 25% in left side .The Prevalence of hamstring and calf muscles shortness with together in 20 district was greater than 3.The greatest amount was seen in secondary school(31.6%). Conclusion:The results indicated that most of subjects who had hamstring shortness, they had also calf muscles shortness, so if there is any shortness in one of them, we shouhd pay attention to shortness of the another.
Journal of Research in Rehabilitation Sciences, 2015
Introduction: Ankle sprains are most frequent injuries in soccer. Previous studies showed that FIFA comprehensive warm up program 11+ reduce sport injuries but to date there is limited information on effectiveness of this program on prevention of ankle injuries. Thus, the aim of this randomized controlled Trial was to determine the effect of FIFA comprehensive warm-up program for the prevention of ankle injuries in male young soccer players. Materials and Methods: 980 male young soccer players from 35 teams participated in this study. Teams were randomly assigned to an intervention (n = 17 teams, 476 players) or a control group (n = 18 teams, 504 players). Teams in the intervention group performed the +11 at least twice a week as warm up prior training throughout the season. All participants of the control group continued their practice sessions as usual. All soccer-related injuries and player exposure to practice sessions and matches was registered prospectively by the coaches and ...
Journal of Rafsanjan University of Medical Sciences, 2014
Background and Objective: There is relation between the rate of loading and arthrosis. Genu varum results in osteoarthritis. Knowing the changes of the affected biomechanical variables during landing result in fundamental understanding to prevent arthrosis in people with genu varum deformity. Hence, the purpose of this study was to compare the plantar flexor muscles activity with the rate of loading during single leg drop landing between men with genu varum deformity and normal knee from three heights. Materials and Methods: 40 healthy male students participated in this semi-experimental research. Subjects were 20 people with genu varum deformity and the rest half with normal knee. Genu varum deformity was measured by a caliper and goniometer. Subjects performed single-leg landing dropping from three different heights (20, 40 and 60 cm) onto a force platform. Landing movement was divided into two phases: 100 ms precontact and postcontact of foot onto the ground. Data analysis was performed using Mixed ANOVA. Results: It has been observed no significant difference during pre-landing between the activities of the medial gastrocnemius and soleus muscles (p> 0.05). Although, there was a significant difference between two groups in the rate of loading with the activity of the medial gastrocnemius muscle during post-landing (p<0.05) and eventually there was no significant difference between soleus muscle activity in post-landing (p>0.05). Conclusion: The higher rate of injury and arthrosis risk in people with genu varum in respect of normal ones might be due to the rate of high loading inserted to the extremities during landing. To diminish these risks, corrective exercises and corrected biomechanical activity are recommended.
2010
Introduction: Estimating the width of maxillary central incisor may be difficult when an artificial tooth is selected for edentulous patients. One of the ways to choose a good size for this tooth is using extra-oral landmarks in face. This study examined the relationship between mesiodistal (MD) width of maxillary central incisor and interpupillary distance (IPD) which is a stable landmark in lifetime. Materials & Methods: In this descriptive cross sectional study, 100 Iranian subjects (50 males and 50 females, mean age 23±6.3 years) without ocular and dental deformities were selected. The MD width of upper central incisor and IPD were measured three times for each subject using Boley Gauge with 0.1 mm accuracy and then, the mean values were calculated. A mathematic equation to evaluate correlation between MD width of upper central incisor and IPD was calculated and then examined in the other 20 subjects (10 males and 10 females, mean age 24.8±1.56 years) by statistically comparing ...
The Journal of Qazvin University of Medical Sciences, 2018
Background: Chronic obstructive pulmonary disease (COPD) is a major public health challenge and also the leading cause of death in the world. Evidences indicate that this disease ranking will be rising from 4th to 3rd until 2020. Objective: The purpose of this study was to compare the effect of upper extremity exercise and respiratory training on the quality of life in patients with COPD. Methods: This randomized clinical trial study conducted in Velayat Hospital in Qazvin with COPD patients (n=75) in 2017. After dividing the participants into three groups (n=25), demographic information and St George’s quality of life questionnaire were completed. The upper extremity exercise group attended in 12 exercise sessions and the respiratory training group received respiratory trainings for one month, as well. Data were analyzed by independent t-test, one-way-ANOVA test, and Paired t-test. Findings: The upper extremity exercise group had a higher quality of life than the respiratory traini...
DOAJ (DOAJ: Directory of Open Access Journals), 2016
Background: The failure time of permanent tooth is of the form of interval censored since the exact time of tooth decay is not available and it is only known that tooth decay occurs between two consecutive visits. There are a few techniques available in the literature for the problem of goodnessof-fit for interval censored data. In this paper, we propose a new goodness-of-fit testing procedure for interval censored data and employ this for the failure time of the first permanent molar tooth (sixth tooth) data. Materials and Methods: Two methods of goodness-of-fit for interval censored data that are based on randomly generated data from each interval and averaging over the test statistics or over the p-values are employed for the failure time of the first permanent molar tooth data. Results: The mean of the failure time of the first permanent molar tooth is found to be at 95 months. The p-values of the two goodness-of-fit testing procedures for the Weibull, log-normal and gamma models are calculated. Conclusion: By comparing the p-values, the log-normal model is considered as the best model to describe the failure time of the first permanent molar tooth data.
Journal of Shahrekord University of Medical Sciences, 2007
2019
Background: Competitive diving has both a high speed impact and chronic repetitive character. Jumping from the springboard with poor posture or the sheer volume of dives can increase risk of chronic overuse injuries. The purpose of this study was to evaluate the relationship between dynamic lower extremity malalignments and elite divers' approach the 1 m springboard. Methods: Passive or reflective markers were attached to posterior surface of the subjects' bodies. Twelve elite divers performed "Forward Diving Straight" with one of the Traditional (TRD) or Hurdle pre-flight (HPF) approach on the 1m springboard. Their dynamic malalignments of ankle, knee and hip were evaluated during diving performance. The relationship between approach pattern and dynamic malalignment of ankle, knee, and hip in the frontal plane at each step was determined using “Generalized Estimating Equation” (GEE) with the “Identity Function” and the “Normal Distribution”. Results: The results o...
Journal of Shahrekord University of Medical Sciences, 2014
Cite this article as: Jafari A. Relation between ghrelin, obestatin and ghrelin to obestatin ratio with bone mineral density in active and non-active men.
2016
Background & objectives: Cesarean section has important role in reducing mortality rate and complications of delivery in both mothers and fetus. However, high rate of cesarean section is a major issue in the modern obstetrics. According to the World Health Organization, the expected rate of cesarean section should be 10-15 percent in different countries. In Iran, cesarean rate is about 50-65 percent. Given the high prevalence of cesarean section, this study was conducted to determine the prevalence of cesarean and its causes in governmental obstetric hospitals of Kashan in 2014. Methods: This cross-sectional study was conducted on 5751 births in two obstetric centers of Kashan in 2014. Required information was obtained from the data recorded in the mentioned two delivery centers. Cesarean rates were obtained in relation to the total number of births in the two centers, and reasons for cesarean section were extracted from patient’s records and obtained information was entered in a ch...
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