scholarly journals Generalized joint hypermobility, scoliosis, patellofemoral pain, and physical abilities in young dancers

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Nili Steinberg ◽  
Shay Tenenbaum ◽  
Aviva Zeev ◽  
Michal Pantanowitz ◽  
Gordon Waddington ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Postural Balance ◽  
Patellofemoral Pain ◽  
Joint Hypermobility ◽  
Knee Extensors ◽  
Young Girls ◽  
Generalized Joint Hypermobility ◽  
Increased Risk ◽  
High Prevalence ◽  
Physical Abilities

Abstract Background Many young girls with generalized joint hypermobility (GJH) choose to participate in dance because their bodies are suited for this activity. Scoliosis tends to occur often in thin girls, who also are more likely to choose dance. Both anomalies (GJH and scoliosis) may be related to reduced abilities such as diminished strength and insufficient postural balance, with increased risk for musculoskeletal conditions. The main objectives of the present study were to determine the prevalence of dancers with GJH, the prevalence of dancers with scoliosis, and the prevalence of dancers with these two anomalies; and, to determine differences in physical abilities and the presence of patellofemoral pain (PFP) between young female dancers with and without such anomalies. Methods One hundred thirty-two female dancers, aged 12–14 years, were assessed for anthropometric parameters, GJH, scoliosis, knee muscle strength, postural balance, proprioception ability, and PFP. Results GJH was identified in 54 dancers (40.9%) and scoliosis in 38 dancers (28.8%). Significant differences were found in the proportion of dancers with no anomalies (74 dancers, 56.1%) and dancers with both anomalies (34 dancers, 25.8%) (p < .001). Dancers with both anomalies had reduced dynamic postural balance in the anterior direction (p = .023), reduced proprioception ability (p < .001), and weaker knee extensors (p = .036) and flexors (p = .040) compared with dancers with no anomalies. Among dancers with both anomalies, 73.5% suffered bilateral PFP, 17.6% suffered unilateral PFP, and 8.8% had no PFP (p < .001). Conclusions A high prevalence of young girls participating in dance classes had GJH, as the increased joint flexibility probably provides them with some esthetic advantages. The high prevalence of scoliosis found in these young dancers might be attributed to their relatively low body mass, their delayed maturation, and the selection process of dancers. Dancers with both GJH and scoliosis had decreased muscle strength, reduced postural balance, reduced proprioception, with higher risk of PFP. The main clinical implications are the need to reduce the risk of PFP among dancers by developing appropriate strength and stabilizing exercises combined with proprioceptive and postural balance training, to improve the correct alignment of the hyperextended and hypermobile joints, and to improve their supporting muscle strength.

scholarly journals Analysis of pain, functional capacity, muscular strength and balance in young women with Patellofemoral Pain Syndrome

2017 ◽  
Vol 30 (3) ◽  
pp. 433-441
Author(s):  
Camile Ludovico Zamboti ◽  
Rubens Alexandre da Silva Junior ◽  
Cynthia Gobbi ◽  
Leonardo Shigaki ◽  
Christiane de Souza Guerino Macedo
Keyword(s):  
Muscle Strength ◽  
Knee Pain ◽  
Functional Capacity ◽  
Anterior Knee Pain ◽  
Postural Balance ◽  
Pain Syndrome ◽  
Patellofemoral Pain Syndrome ◽  
Patellofemoral Pain ◽  
Sedentary Women ◽  
Anterior Knee

Abstract Introduction: Patellofemoral Pain Syndrome (PFPS) is associated with anterior knee pain, changes in functional capacity, balance and muscle strength disorders. Objective: To quantify pain, functional capacity, strength in quadriceps (Q), gluteus medium (GM), hip external rotator (ER) muscles and balance in sedentary women with PFPS. Methods: Twenty sedentary women, aged 18 to 25 years, were divided into two groups: PFPS (N=10) and control group (N=10). All the volunteers answered the items of the Visual Analogue Scale (VAS), the Lysholm Knee Score Scale, the Anterior Knee Pain Scale (AKPS), and the Lower Extremity Functional Scale (LEFS). The participants performed the following tests: maximal voluntary isometric contraction measured by dynamometry; postural balance using the Star Excursion Balance Test (SEBT) and a force platform. Statistical analyses were performed using the Shapiro Wilk test, the Mann Whitney U test and Spearman’s correlation coefficient. Data were submitted to SPSS 20 software. Results: The PFPS group presented greater pain, balance impairment and higher average velocity of oscillation; however, no differences were observed in Q, GM and RE muscle strength and in balance analyzed by SEBT. Conclusion: Women with PFPS exhibited greater pain, worse functional capacity and body balance. Moderate correlation between both balance tests suggests the use of SEBT when the force platform is not available, which could facilitate and highlight the importance of clinical diagnosis with regard to postural balance.

scholarly journals A DESCRIPTIVE PROFILE OF ISOMETRIC MUSCLE STRENGTH AND MUSCLE STRENGTH IMBALANCE IN YOUNG TENNIS PLAYERS

2015 ◽  
Vol 4 (99) ◽  
pp. 54-61
Author(s):  
Anna Zuša ◽  
Jānis Lanka ◽  
Lenīds Čupriks ◽  
Irēna Dravniece
Keyword(s):  
Muscle Strength ◽  
Shoulder Joint ◽  
Wrist Joint ◽  
Knee Extensors ◽  
Abdominal Muscles ◽  
Elbow Flexors ◽  
Plantar Flexors ◽  
Tennis Players ◽  
Increased Risk ◽  
Elbow Flexors And Extensors

Background. Tennis is assumed as asymmetric sport, prolonged training practice could affect muscle strength imbalance. Muscle strength functional ratio imbalance could be a reason for poor posture, physical weakness and increased risk of injury. The purpose of the research was to evaluate young tennis players’ main muscle group strength topography and to investigate the level of different muscles groups’ bi-lateral and contra-lateral imbalance. Methods. The participants of the study were six young right handed competitive tennis players (girls, age 11.4 ± 0.5 years, tennis experience 4.7 ± 0.6 years). Examination of main muscles groups was performed with an isokinetic dynamometer. Results. Young tennis players have pronounced bi-lateral imbalance between shoulder joint extensors and flexors (25%), internal and external rotators (36%), left elbow flexors and extensors (58%), wrist pronator and supinator (the right hand 17%, left 48%), hip flexors and extensors (35%); knee joint flexors and extensors (60%); ankle dorsal flexors and plantar flexors (59%); spine and abdominal muscles (48%). It was detected that young tennis players have pronounced contra-lateral imbalance between right and left internal rotators of the shoulder joint (27%) and external rotators (26%), wrist joint supinators (41%). Conclusions. To avoid the increase in muscle bi-lateral imbalance it is highly recommended to pay more attention to shoulder adductors and shoulder external rotators, elbow flexors and extensors, wrist supinators and extensors, knee extensors, ankle plantar flexors and spine flexors. For contra-lateral imbalance prevention in addition to train non-dominant upper extremity muscles: shoulder internal and external rotators, wrist supinators.

scholarly journals Correction: Muscle strength, muscle power and body composition in college-aged young women and men with Generalized Joint Hypermobility

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0252265
Author(s):  
Paulina Ewertowska ◽  
Zbigniew Trzaskoma ◽  
Dominik Sitarski ◽  
Bartłomiej Gromuł ◽  
Ireneusz Haponiuk ◽  
...  
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Young Women ◽  
Muscle Power ◽  
Joint Hypermobility ◽  
Generalized Joint Hypermobility

scholarly journals Correlation between static postural balance, falls and pick torque isokinetic of extensors and flexors of the knee in elderly

2020 ◽  
pp. 1-6
Author(s):  
Marieli Ramos Stocco ◽  
Deise Aparecida de Almeida Pires-Oliveira ◽  
Laís Campus de Oliveira ◽  
Raphael Gonçalves de Oliveira ◽  
Fábio Antônio Néia Martini ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Lower Limb ◽  
Postural Balance ◽  
The Elderly ◽  
Knee Extension ◽  
Knee Extensors ◽  
Strong Positive Correlation ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Positive Correlation

Introduction: Declines of static postural balance and muscle strength, especially of lower limbs are strong predictors of falls in the elderly. Objective: The objective of this study was to identify the possible correlation between static postural balance, falls and isokinetic torque peak of knee extensors and flexors in the elderly. Methods: A cross-sectional study with anthropometric evaluation of static postural balance in unipodal limb support was performed using the force platform, flexural strength test and knee extension of the dominant limb using the isokinetic dynamometer and the application of a structured questionnaire on falls. They agreed to participate in the study 106 volunteers of both sexes through the signing of the free and informed consent. The data were treated in the Statistical Package for the Social Sciences program version 20.0. Results: There was a weak positive correlation between center of pressure (COP) area and peak flexion torque (r=0.204, p=0.041) and extension (r=0.228; p=0.022) of the knee, as well as peak extension (r=0.319, p=0.001) and lateral mean (r=0.324, p=0.001). A moderate positive correlation between COP area and anteroposterior velocity (r=0.694, p=0.000) and lateral mean (r = 0.646; p = 0.000) and strong positive correlation was found only between peak flexion torque and knee extension (r=0.719, p=0.000). Conclusion: There was a weak correlation between static postural balance and dominant lower limb muscle strength, and there was no correlation between falls and lower limb muscle strength, or between falls and static postural balance in the studied sample.

Prevalence of Generalized Joint Hypermobility in Children with Anxiety Disorders

2020 ◽  
Author(s):  
vadood javadi ◽  
Shadi Sadat Modarres ◽  
Ghazal Zahed ◽  
Reza Shiari ◽  
Khosro Rahmani
Keyword(s):  
Anxiety Disorders ◽  
Joint Hypermobility ◽  
Child And Adolescent Psychiatry ◽  
Control Group ◽  
Case Group ◽  
Generalized Joint Hypermobility ◽  
High Prevalence ◽  
And Control ◽  
The Relationship ◽  
Control Study

Abstract Background Concerning the high prevalence of anxiety disorders and joint hypermobility in children and the lack of related studies in this age group, we aimed to assess the relationship between the prevalence of hypermobility and anxiety disorders in children. MethodsIn this case-control study, 93 children ages 8-15 years with anxiety disorders referring to the Child and Adolescent Psychiatry Clinic of Mofid Children’s Hospital, Tehran, Iran, during 2018, were enrolled. The control group consisted of 100 age and sex-matched children without anxiety disorders. Anxiety was evaluated using the Spence Children Anxiety Scale (SCAS). The diagnosis of generalized joint hypermobility was done based on Beighton and Shiari-Javadi criteria. Results Based on Beighton’s diagnostic criteria 52.7% of the children in the case group and 16% of the children in the control group had generalized joint hypermobility. Moreover, based on Shiari-Javadi criteria, 49.5% and 13% of the children in the case and control groups had generalized joint hypermobility, respectively. Moreover, the internal correlation between the two criteria was 0.91 showing almost complete compatibility between the two (P<0.001). Age was a risk factor that could predict hypermobility in these children. Other variables such as sex, severity, and type of anxiety disorders, and ADHD, were not predictors of hypermobility syndrome. Conclusion The prevalence of hypermobility was three times higher in children with anxiety disorders and only age was a predictor for the possibility to suffer from generalized joint hypermobility in these children.

scholarly journals Muscle strength, muscle power and body composition in college-aged young women and men with Generalized Joint Hypermobility

PLoS ONE ◽  
2020 ◽  
Vol 15 (7) ◽  
pp. e0236266
Author(s):  
Paulina Ewertowska ◽  
Zbigniew Trzaskoma ◽  
Dominik Sitarski ◽  
Bartłomiej Gromuł ◽  
Ireneusz Haponiuk ◽  
...  
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Young Women ◽  
Muscle Power ◽  
Joint Hypermobility ◽  
Generalized Joint Hypermobility

scholarly journals Prevalence of Generalized Joint Hypermobility in Children with Anxiety Disorders

2020 ◽  
Author(s):  
vadood javadi ◽  
Shadi alsadat Modarres ◽  
Ghazal Zahed ◽  
Reza Shiari ◽  
Khosro Rahmani
Keyword(s):  
Anxiety Disorders ◽  
Joint Hypermobility ◽  
Child And Adolescent Psychiatry ◽  
Control Group ◽  
Case Group ◽  
Hypermobility Syndrome ◽  
Generalized Joint Hypermobility ◽  
High Prevalence ◽  
And Control ◽  
Control Study

Abstract Background: Concerning the high prevalence of anxiety disorders and joint hypermobility in children and the lack of related studies in this age group, we aimed to assess the association of hypermobility with anxiety disorders in children. Methods: In this case-control study, 93 children ages 8-15 years with anxiety disorders referring to the Child and Adolescent Psychiatry Clinic of Mofid Children’s Hospital, Tehran, Iran, during 2018, were enrolled. The control group consisted of 100 age and sex-matched children without anxiety disorders. Anxiety was evaluated using the Spence Children Anxiety Scale (SCAS). The diagnosis of generalized joint hypermobility was done based on Beighton and Shiari-Javadi criteria. Results: Based on Beighton’s diagnostic criteria 52.7% of the children in the case group and 16% of the children in the control group had generalized joint hypermobility. Moreover, based on Shiari-Javadi criteria, 49.5% and 13% of the children in the case and control groups had generalized joint hypermobility, respectively. Moreover, the internal correlation between the two criteria was 0.91 showing almost complete compatibility between the two (P<0.001). Age was a risk factor that could predict hypermobility in these children. Other variables such as sex, severity, and type of anxiety disorders, and ADHD, were not predictors of hypermobility syndrome. Conclusion: The prevalence of hypermobility was three times higher in children with anxiety disorders and only age was a predictor for the possibility to suffer from generalized joint hypermobility in these children.

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