Dynamic knee valgus prevalence in children and its association with pain intensity, foot mobility, and sex— A cross-sectional study

Background Dynamic knee valgus (DKV) is a multi-planar faulty movement pattern that can cause faulty postural control. The primary objective of this study is to investigate the differences in postural sway (PS) between individuals aged 18–30 years old diagnosed with and without DKV. Methods In this cross-sectional study, 62 students (39 males and 23 females) with and without DKV (age: 24.58 ± 2.63 years) were selected and assigned to two groups by conducting the single-leg squat test in the screening stage. The Biodex balance system was then employed to compare the two groups in PS. Mann–Whitney U test was conducted to compare the groups in PS (p ≤ 0.05). Results The study’s findings indicate that individuals with DKV did not exhibit any significant differences, compared to those without, about the anterior-posterior stability index (with p values for both static and dynamic situations at 0.309 and 0.198, respectively), medial-lateral stability index (with p values for both static and dynamic situations at 0.883 and 0.500, respectively), and overall stability index (with p values for both static and dynamic situations at 0.277 and 0.086, respectively). Conclusion Though several possible factors could contribute to the lack of significant differences in postural sway between individuals with and without DKV, such as measurement tool differences, variable sensitivity in postural stability tests, and differences in movement variability and test stance, we recommend analyzing postural sway in more functional tasks and with different methodological patterns in future studies. Such research could help develop targeted interventions for individuals with DKV and offer a better understanding of the relationship between postural control and DKV.

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Comparison of postural sway in individuals with and without dynamic knee valgus

Karimi

Seidi

Mousavi

et al. 2023

BMC Sports Sci Med Rehabil

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Patellofemoral pain syndrome in children and adolescents: A cross-sectional study

Sanchis,

Barbosa,

Cavalcanti

et al. 2024

PLoS ONE

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Objectives To assess the prevalence and associated factors of Patellofemoral Pain Syndrome (PFPS) in children and adolescents. Method A population-based cross-sectional study was conducted with children and adolescents aged 10 to 18 years, who presented a history of peripatellar and/or retropatellar pain, attending elementary or high school in urban public schools in Natal, Brazil. The sample size was calculated based on a minimum outcome prevalence of 22%. Results A prevalence of 24.7% of PFPS was found. There was a positive association of PFPS with active students (p < 0.01; PR: 2.5; CI: 1.4–4.5), low functional capacity (p < 0.01; PR: 8.0; CI: 5.0–12.8), and those classified as pubertal (p < 0.03; PR: 1.8; CI: 1.0–3.2). Conclusion There was a considerable prevalence of PFPS in children and adolescents, as well as an association between the level of sexual maturation and adjustable determinants, such as the level of physical activity and low functional capacity in this group.

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Association between Body Composition, Physical Activity Profile, and Occurrence of Knee and Foot Postural Alterations among Young Healthy Adults

Ashraf,

Viveiros,

França

et al. 2024

Future

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Knee and foot deformities refer to structural abnormalities in the knee and foot bones, joints, ligaments, or muscles. Various factors, including genetics, injury, disease, or excessive use, can cause these deformities. These musculoskeletal conditions can significantly impact individuals’ quality of life. This study examined foot and knee deformities in 231 young healthy adults (165 men, 66 women) aged 22.6 ± 4.9 years and their association with physical activity and body composition. The postural assessment was performed by two Physiotherapists, with the subject standing in three views: side, anterior, and posterior. Physical activity (Baecke’s Habitual Physical Activity Questionnaire) and body composition (InBody 770) were assessed. Results showed that the most common foot deformity was pes planus, while the genu recurvatum was the most common knee deformity among the individuals. Physical activity level was negatively associated with knee and foot deformities. Conversely, body composition differed with the presence of genu recurvatum. These findings present a starting point to understand the occurrence of knee and foot postural alterations according to the individuals’ body composition and physical activity profiles, which could support the deployment of tailored interventions among healthy adults. In addition, early detection of postural changes is crucial in mitigating their negative long-term impact on physical well-being.

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Dynamic knee valgus prevalence in children and its association with pain intensity, foot mobility, and sex— A cross-sectional study

Cited by 3 publications

References 32 publications

Comparison of postural sway in individuals with and without dynamic knee valgus

Comparison of postural sway in individuals with and without dynamic knee valgus

Patellofemoral pain syndrome in children and adolescents: A cross-sectional study

Association between Body Composition, Physical Activity Profile, and Occurrence of Knee and Foot Postural Alterations among Young Healthy Adults

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