Does forward step-down task frontal kinematics differ in women with and without patellofemoral pain? A cross-sectional study

Pompeo, Klauber Dalcero; Rocha, Emmanuel Souza da; Morales, Anete Beling; Klein, Kelli Daiana; Vaz, Marco Aurélio

doi:10.1007/s11332-021-00869-x

Cited by 2 publications

(2 citation statements)

References 45 publications

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“…This difference means a demand for more muscle recruitment to control frontal plane alignment during the LSD test and could explain the finding that the LSD test was more sensitive than the forward step-down test in the detection of DKV in PFP and asymptomatic women [ 19 ]. On the other hand, other authors [ 23 , 29 , 39 ] have reported that women with PFP presented higher FPPA in single-leg squat tests when compared to asymptomatic women. In our study, we found no difference in DKV between the asymptomatic and PFP groups during the LSD test.…”

Section: Discussionmentioning

confidence: 88%

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Assessment of Dynamic Knee Valgus between Lateral Step-Down Test and Running in Female Runners with and without Patellofemoral Pain Using Two-Dimensional Video Analysis

Vasconcelos

Aidar

Lima

et al. 2022

Clinics and Practice

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Dynamic knee valgus (DKV) is a frontal plane knee kinematic alteration that has been associated with patellofemoral pain (PFP) in female runners. DKV is commonly assessed in clinical practice by measuring frontal plane knee projection angle (FPPA) during squat tests. However, it remains unclear whether the DKV observed in these tests is similar to or correlates with that observed during running in female runners. The aims of this cross-sectional study were to correlate and compare DKV, by measuring FPPA values, in a lateral step-down (LSD) squat test and running in female runners with and without PFP. A two-dimensional (2D) video analysis of the LSD test and running was carried out for 21 asymptomatic female runners and 17 PFP female runners in order to determine FPPA values. A Pearson correlation test and a factorial ANOVA with Bonferroni post hoc correction were used for statistical analysis. The FPPAs recorded in the LSD test were significantly higher than those recorded during running in the asymptomatic (16.32° ± 5.38 vs. 4.02° ± 3.26, p < 0.01) and PFP groups (17.54° ± 7.25 vs. 4.64° ± 3.62, p < 0.01). No significant differences were found in FPPA values between asymptomatic and PFP runners during the LSD test (16.32° ± 5.38 vs. 17.54° ± 7.25, p = 0.55) and running (4.02° ± 3.26 vs. 4.64° ± 3.62, p = 0.58). There was a small (r < 0.3) and non-significant (p > 0.05) correlation in FPPAs between the LSD test and running in both groups. According to our results, DKV was not similar during the LSD test and running, and there was no significant correlation in FPPA values between the LSD test and running in both groups. Therefore, clinicians and therapists should be aware of these findings when using the LSD test in clinical practice to evaluate DKV in female runners with or without PFP.

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Section: Discussionmentioning

confidence: 88%

“…Pompeo et al [ 39 ] found no differences in FPPA measured during the forward step-down squat test between women with PFP and women who were asymptomatic. Although similar to our results, this test presents some kinematic differences in relation to the LSD test due to the positioning of the contralateral limb.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Dynamic Knee Valgus between Lateral Step-Down Test and Running in Female Runners with and without Patellofemoral Pain Using Two-Dimensional Video Analysis

Vasconcelos

Aidar

Lima

et al. 2022

Clinics and Practice

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Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping

et al. 2022

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The single leg squat (SLS), forward step down (FSD), and lateral step down (LSD) are clinically reliable movement screens for identifying motion imbalances. The current understanding for the kinematic profiles of each task is limited to discrete time points such as peak knee flexion. However, analyses of the entire movement would better aid clinicians when selecting the appropriate task for rehabilitation or movement screen purposes. The current study used Statistical Parametric Mapping to ascertain differences in the kinematic waveforms for the entire duration of each task. The trunk, pelvis, hip, and knee were analyzed in the sagittal and frontal planes. Data for each variable and task were analyzed from 0–100% of the movement. Primary findings indicated that the FSD provoked a greater magnitude of knee abduction than the SLS and LSD from 26–66% of the movement. The SLS generated the greatest amounts of trunk, pelvic, and hip flexion for the entirety of the movement. The LSD elicited the least amount of ipsilateral trunk lean (90–100%). Thus, the FSD may be optimal for assessing frontal plane knee motion as a screen for injury risk, while the SLS has potential to place increased sagittal plane demand on the muscles of the hip.

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Does forward step-down task frontal kinematics differ in women with and without patellofemoral pain? A cross-sectional study

Cited by 2 publications

References 45 publications

Assessment of Dynamic Knee Valgus between Lateral Step-Down Test and Running in Female Runners with and without Patellofemoral Pain Using Two-Dimensional Video Analysis

Assessment of Dynamic Knee Valgus between Lateral Step-Down Test and Running in Female Runners with and without Patellofemoral Pain Using Two-Dimensional Video Analysis

Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping

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