فهرست مطالب

  • Volume:6 Issue: 4, 2020
  • تاریخ انتشار: 1398/11/22
  • تعداد عناوین: 8
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  • Ali Asghar Saberian Amirkolaei *, Ramin Balouchy, Rahman Sheikhhoseini Pages 153-159
    Background
    Although injuries are an inevitable part of sports, exercise as a tool to prevent sports-related injuries and their consequences has caught the attention of many researchers in recent years. The present study aims to evaluate the effect of 8 weeks of Swiss ball training on the integration of functional movement of teenage badminton players and their balance.
    Methods
    This is a semi-experimental research. A total of 29 teenage badminton players were selected and divided randomly into control (n=13) and experimental groups (n=16). The experimental group performed an eight-week-long period of Swiss ball training that was recommended by the Badminton World Federation before participating in the badminton exercise sessions (3 sessions per week). Before initiation, after the completion of the fourth and eighth week of trainings, both groups underwent Y balance and FMS tests.
    Results
    Research findings indicated that eight weeks of Swiss ball training influenced FMS test (P≤0.001), lower limb Y balance test (P≤0.001), and upper limb Y balance test (P≤0.001) on the teenage badminton players. The post hoc testing identified a significant increase between weeks 4 and 8 in FMS tests (P≤0.001), lower limb Y balance test (P≤0.001) and upper limb Y balance test (P≤0.001).
    Conclusion
    A period of 8 Weeks of Swiss ball training affects the integrity of functional movements and balance of teenage badminton players. Therefore, these protocols can be suggested for trainers and other related fields.
    Keywords: Athletes, Racquet Sports, Lumbosacral Region, Postural Balance, Exercise
  • Amir Hossein Kermanshahani, Farzad Cheraghpour Samavati * Pages 160-168
    Background
    People who have lost their ability to walk, shake hands or even talk due to brain stroke may revert their ability back to normal or near normal with the assistance of rehabilitation robots. Previous literature reviews of rehabilitation studies have shown that, in most cases, repeated movement of a patient’s member can help restore the function of the injured member in patients, in which, the use of robots can be very effective.
    Method
    The method of this research is the experimental method. The paper aims to investigate the ability of a parallel robot for rehabilitation of injured fingers. The motions of human finger joints for physical therapy purposes has been investigated and been considered as the optimal route of the design process and as the set point of control procedure of robot movements. The proposed robot has been designed with the right choice of kinematic loops, where the robot pursues the optimal path to rehabilitation, and at the same time, does not come into direct contact with the patient, allowing the patient to be more tolerant as they feel more comfortable and at ease. In addition to the above-mentioned advantages, the designed robot reduces the number of operators as well as the number of parameters necessary to change and control the algorithm for different patients.
    Results
    After presenting the robot’s conceptual design, the kinematics analysis of the robot was dealt with. In the next step, the dynamic equations of the robot were extracted. Ultimately, using the control methods, the position, stability and efficiency of the rehabilitation robot was simulated. Finally, the constructed prototype of the robot is presented and control method and program sectors are introduced.
    Conclusion
    The proposed robot for rehabilitation of four fingers with a simplified design and low cost of manufacturing could be used in robotic applications in home based care for disabled people.
    Keywords: Rehabilitation, Function Recoveries, Exoskeleton Device
  • Mohammad Bayattork, Foad Seidi *, Hooman Minoonejad, Philip Mcclure, Esmaeil Mozafaripoor Pages 169-173
    Background

    Forward head and round shoulder posture (FHRSP) is believed to be related to scapular dyskinesis (SD), placing increased stress on the neck and shoulder, leading to pain and dysfunction. Therefore, a clinical method with sufficient reliability to distinguish normal and abnormal scapular position and motion among people with FHRSP is called for. This study aims to evaluate intra-rater and inter-rater reliability and agreement of the scapular dyskinesis test (SDT) in people with FHRSP.

    Methodsː

    This reliability study included 60 young men who were identified as having FHRSP, having been measured by the photogrammetry method. The clinical examination included a Scapular Dyskinesis Test (SDT), which is a dynamic and visually based test to classify the presence of SD. It was performed by two raters who were blinded to each other’s test results on two different days. Intra- and inter-rater reliabilities were determined using the Kappa coefficient with linear weighting for the ordinal classification of SD by SDT.

    Results

    Inter-rater agreement values ranged from 90.8% to 92.1%. Furthermore, the inter-rater reliabilities presented an almost perfect reliability (k > 0.82). For intra-rater agreement, raters presented high percentage values of agreement between the two measurements (88.9% to 92.5%). Intra-rater reliability for raters was substantial to almost perfect (k >0.77).

    Conclusion

    The intra- and inter-rater reliability and agreement of the SDT obtained by two raters was substantial to almost perfect among young men with FHRSP. Therefore, it seems that SDT is a simple method to distinguish normal and abnormal scapular position and motion in order to screen or assess before developing prevention programs.

    Keywords: Scapula, Head, Shoulder, Dyskinesis, Posture, reliability
  • Mohammad Ghorbani, Arezoo Hassanvand *, Maryam Vahab, Samaneh Hosseinzadeh Pages 174-177
    Background

    One’s voice is one of the most important tools for professional voice users, especially actors. Actors have limited knowledge of vocal hygiene that leads to vocal abuse and misuse of vocal behavior. For this reason, special care must be taken by this group in the form of vocal hygiene. Currently, no validated instrument determines knowledge levels of vocal hygiene education in actors as professional voice users. The "Assessment of actors' vocal hygiene knowledge" questionnaire is designed to measure actors' awareness of vocal hygiene. The purpose of this study was to investigate the validity and reliability of the "Assessment of actors' vocal hygiene knowledge".

    Methods

     This study was a methodological research that was conducted in two phases of designing and evaluating the validity and reliability of the "Assessment of actors' vocal hygiene knowledge” questionnaire. The participants in this study were 150 actors (91 men and 59 women) ranging in age from 18 to 45 years (mean age: 26.13 years and SD = 4.7). In this study, content validity ratio (CVR) and content validity index)CVI) was used to assess content validity. The reliability was examined using Cronbach’s alpha and test-retest.

    Results

    All test items had good content validity (CVR> 0.62 and CVI> 0.79). Cronbach's alpha coefficient for the whole test was 0.75. The questionnaire also had a high test-retest reliability including intra-class correlation coefficient) ICC (= 0.91 with 95% confidence interval.

    Conclusion

    The results of this study indicate that the "Assessment of actors' vocal hygiene knowledge” questionnaire has good validity and reliability for actors.

    Keywords: Voice Hygiene, Validity, reliability, Actors, Voice Knowledge
  • Mahsa Kavyani *, Mohammad Taghi Karimi Pages 178-182
    Background
    Scoliosis is one of the musculoskeletal disorders which influences the performance of patients when walking. There is not enough information available regarding the influence of orthosis on the energy consumption of scoliotic patients while walking. Therefore, the aim of this study was to investigate the effect of orthosis on energy consumption.
    Method
    This is an uncontrolled before and after study (quazi-experimental). Ten scoliotic patients and 10 normal subjects with comparable age, height and weight were recruited in this study. Energy consumption of walking was obtained from the scoliotic patients in two conditions: with and without orthosis as well as from the normal subjects without orthosis and it was evaluated using polar Electro Finland heart rate monitor. The heart rate during resting and walking and the speed of walking were the parameters used for energy consumption based on physiological cost index.
    Results
    The energy consumption of scoliotic subjects during walking based on PCI (physiological cost index) and THBI (total heart beat index) were higher than that of normal subjects, but the difference was not significant (P >0.05). Trunk bracing induced a little reduction of energy consumption and increased the gait efficiency of scoliotic patients.
    Conclusion
    The results of this research showed that there was no significant difference between the PCI and THBI of normal and scoliotic subjects. Bracing had no significant effect on gait efficiency of scoliotic patients (p >0.05).
    Keywords: scoliosis, Energy Expenditure, Orthotic Devices, heart rate
  • Kaveh Rezania, Shahnaz Pourarian * Pages 183-187
    Background
      Speech-language disorders are associated with symptoms, such as illiteracy, problems in social skills, as well as poor academic and professional performance. Investigating the prevalence of the mentioned disorders would be helpful in programming for management of these disorders by preventing the associated symptoms. Since there is a lack of data on the prevalence of children’s speech-language disorders in Shiraz, investigating such issue is critical or early detection, intervention, and prevention of associated symptoms. The aims were: 1) to estimate the prevalence of speech-language disorders in 4-6 year old children in Shiraz, and 2) to determine the relationship between these disorders with gender and age.
     
    Methods
    A total of 1588 normal monolingual children (761 girls and 827 boys) of average socioeconomic status, aged 4-6 years were recruited in this cross-sectional study during 2012-16 in Shiraz-Iran.  Language samples were obtained by describing series pictures.  Chi-square was used to analyze the data.
    Results
    53 percent of the participants had at least one disorder.  Specifically, the rates for different disorders were articulation disorders: 40 percent; fluency disorders: 13 percent; voice disorders: 3.3 percent; language comprehension disorders: 2.2 percent, and language expression disorders: 16.2 percent.   Boys had higher rates of disorders in comparison to girls.  Articulation and comprehension disorders were significantly higher amongst the younger age group, suggesting a decrease in these disorders as the age increased.
    Conclusion
    The results of this study generally correlate with those of previous ones, showing that language exposure is a key factor in reducing speech language disorders.  The high prevalence of speech-language disorders in Shiraz indicate the need for increase in public awareness, intervention efforts, and to further investigate the matter.
    Keywords: prevalence, Speech, Language, Diagnosis screening, Child
  • Mohammad Hossien Delshad, Sedigheh Sadat Tavafian *, Anoshirvan Kazemnejad Pages 188-192
    Background
    Situational influences can facilitate or impede stretching exercise behaviours. However, since there is no measurement to assess situational influences among office employees, it might be difficult to understand the role of situational influences on stretching exercises. The current study aimed to evaluate the psychometric characteristics of Short Form of Situational influences Scale for predicting Stretching Exercise among office employers based on the Health Promotion Model (HPM).
    Method
    By multistage cluster sampling method, this cross-sectional study was conducted among 385 office employees selected from the health networks at Shahid Beheshti University of Medical Sciences of Iran (SBUMS) who were assessed through the Short Form of Situational influences Scale. Exploratory factor analysis (EFA), confirmatory factor analysis (CFA), and Cronbach’s alpha were employed.
    Results
    The mean age of the office employees was 39.4±7.76 years. Content Validity Index (CVI) and Content Validity Ratio (CVR) of each question were greater than 0.79. The result of EFA with principal component analysis showed one factor (Situational influences) with 43.6% cumulative variance and KMO with 90.4% (P < 0.001). This was a good fit index in CFA. The reliability of the questionnaire was confirmed through acceptable Cronbach’s alpha (α = 0.79). Regarding CFA, the result showed REMSEA = 0.048, GFI = 0.978, AGFI = 0.986 confirmed with Cronbach’s alpha (α = 79 %) and ICC =0.71 95% CI (0.69, 0.79).
    Conclusion
    The current study revealed that the Short Form of Situational influences Scale for Stretching Exercise is a valid instrument. Therefore, it can be used as a reliable and valid instrument to investigate Stretching Exercise behaviours among office employers.
    Keywords: Muscle, Musculoskeletal System, Muscle Stretching Exercises, Health Behaviour, Posture
  • Emilie Miley, James May *, Erica Albertin, Emi Takahashi, Christopher Goodman, Adrian Pettaway Pages 193-199
    Background
    Accurate range of motion (ROM) assessment is an essential component of clinical practice to identify underlying deficits at the hip joint. Hip joint active ROM has been measured by goniometric methods in the clinical setting. More recently, the Clinometer Smartphone Application has gained attention for ROM measures.  However, minimal research has been identified for the use of the Clinometer Smartphone Application™ for hip ROM. Therefore, the purpose of this study was to determine intrarater and interrater reliability of the Clinometer Smartphone Application™ as well as establishing its validity for active hip internal rotation (IR) and external rotation (ER).
    Methods
    A concurrent test-retest reliability study was conducted using a convenience sample at three different sites. This study included 46 males and 30 females (n = 76) with an average age of 23.93 (5.37) years.  Five clinicians measured each participant’s active prone hip rotation at three different sites. Three trials were measured with the goniometer and with the Clinometer Smartphone Application™. Intrarater reliability was assessed within one week for the five clinicians. Interrater reliability was assessed between three clinicians located at the same site.
    Results
    The intrarater reliability of goniometer was moderate to excellent (ICC > .73 - .96) for hip IR and moderate to good (ICC > .76 - .89) for ER. Similarly, smartphone intrarater reliability was good to excellent for IR (ICC > .81 - .96) and ER (ICC > .77 - .90). The validity of the Clinometer Smartphone Application™ when compared to the goniometer and had a very strong relationship for IR (r = .94 - .96) and ER (r = .84 - .89).
    Conclusion
    The results of this study suggest this application may be a valid and reliable alternative to the goniometer for clinicians when measuring active hip rotation in clinical practice.
    Keywords: Smartphone, Rotation, Hip Joint, reliability, Validity