Postural sway changes in genu recurvatum deformity during standing with manipulation of visual and proprioceptive systems

Yazdani, Shirin; Alizadeh, Farzaneh; Dizaji, Elnaz; Mohammadi, Fariba

doi:10.1016/j.jbmt.2020.06.018

Cited by 4 publications

(9 citation statements)

References 18 publications

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“…The second possible explanation for the lack of signi cant difference between the two groups in PS could be the sensitivity of the postural stability test variable (17). Static postural stability tests might include limited joint information (34).…”

Section: Discussionmentioning

confidence: 99%

“…The participants were divided into two groups (33 individuals with DKV and 29 people without DKV) through a screening test. The inclusion criteria were as follows: lacking a history of regular exercise (25), body mass index (BMI) between 18 and 28 (25), no history of injury in the lower limb causing functional or structural limitations, or surgery in the lower limb that changes the natural alignment, not having a visual, vestibular, and neuromuscular impairment, and being free from any pain that affects the balance control (17). The exclusion criteria included refusing to complete the tests in the appointed session.…”

Section: Participantsmentioning

confidence: 99%

“…An impaired postural control can increase PS and also cause balance impairments (16). Thus, postural stability and muscle activity could be measured to diagnose impaired proprioception and neuromuscular control (17). There might also be a potential relationship between joint biomechanics and movement pattern changes and the knee valgus angle during functional activities ( 18).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have analyzed kinematic variables and motor control in individuals with knee deformities (17,18,19,20). Yazdani et al (17) reported a signi cant difference between individuals with and without anterior-posterior (AP) or medial-lateral (ML) genu recurvatum in terms of motor control.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Postural Sway in Individuals with and without Dynamic Knee Valgus

Karimi

Seidi

Mousavi

et al. 2023

Preprint

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Background: Dynamic knee valgus (DKV) is a multi-planar faulty movement pattern that can cause faulty postural control. This study aimed to compare individuals with and without DKV aged 18–30 years old in terms of postural sway (PS). Methods: Based on the inclusion and exclusion criteria, 62 individuals with (33) and without (29) DKV 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. The statistical significance was set at an alpha of p ≤ 0.05. Results: The result showed that there were no significant differences between individuals with and without DKV in terms of the anterior-posterior, medial-lateral, and overall stability indices (p > 0.05). Conclusion: Apparently, there are no significant differences between individuals with and without DKV in PS due to several possible factors including differences in the measurement tools for postural control, the sensitivity of variables in the postural stability test, and the movement variability and postural stability test (single-leg stance versus double-leg stance). Therefore, it is suggested that future studies should analyze PS in more functional tasks by changing the methodological patterns.

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Section: Discussionmentioning

confidence: 99%

Section: Participantsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of Postural Sway in Individuals with and without Dynamic Knee Valgus

Karimi

Seidi

Mousavi

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…An impaired postural control can increase PS and also cause balance impairments [ 16 ]. Thus, postural stability and muscle activity could be measured to diagnose impaired proprioception and neuromuscular control [ 17 ]. There might also be a potential relationship between joint biomechanics and movement pattern changes and the knee valgus angle during functional activities [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

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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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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Impact of asymptomatic genu recurvatum on patellar mobility in young males

Vavachan,

Ravichandran,

Shetty

et al. 2023

Rev Pesq Fisio

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BACKGROUND: Genu recurvatum is one of the most commonly presented lower extremity postural malalignments in individuals. Though genu recurvatum and its impact on impaired knee proprioception, anterior cruciate injuries and posterior soft tissue dysfunctions are reported, its association with patellar mobility is scarcely reported and warrants exploration. OBJECTIVES: To evaluate the medial and lateral patellar mobility differences in adult young males with genu recurvatum and normal knee alignment. METHODS: The ethical approval for this cross-sectional study protocol was obtained and the study was conducted in Research Department of Alva’s College of Physiotherapy and Research Centre, Moodubidire, DK, Karnataka, India. The study participants were recruited through an institutional-based musculoskeletal and sports clinic. The estimated sample size for this study was 174. A total of 87 young males with genu recurvatum and 87 young males with normal knee alignment fulfilling the selection criteria were enrolled in two groups. Participants' knee joint was examined by an assessor and individuals with > 5⁰ knee hyperextension were assigned to genu recurvatum group, and individuals with knee extension < 5⁰ from neutral were assigned to the normal knee alignment group. Further, the patellar glide test was performed to examine the presence of patellar hypermobility in both groups. RESULTS: The mean age of the participants in genu recurvatum and normal knee alignment group was 22.04 + 1.860 and 21.91 + 1.869, respectively. A significant higher proportion (86.2%) of participants with genu recurvatum identified with patellar hypermobility compared to normal knee alignment. Within the genu recurvatum subjects, 66.66& and 19.54% were observed to have medial and lateral patellar hypermobility. The odds for occurrence of patellar hypermobility in genu recurvatum was estimated to be 13.007 (95%, CI, 5.481 – 30.866), respectively. CONCLUSION: The study result suggests that medial patellar hypermobility is more common in individuals with genu recurvatum. Further study investigating on the mechanism contributing towards medial patellar mobility in genu recurvatum populations could validate the present study findings.

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Postural sway changes in genu recurvatum deformity during standing with manipulation of visual and proprioceptive systems

Cited by 4 publications

References 18 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

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

Impact of asymptomatic genu recurvatum on patellar mobility in young males

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