Relationship between frontal plane projection angle of the knee and hip and trunk strength in women with and without patellofemoral pain

Almeida, Gabriel Peixoto Leão; Silva, Ana Paula de Moura Campos Carvalho e; França, Fábio Jorge Renovato; Magalhães, Mauro Taveira; Burke, Thomaz Nogueira; Marques, Amélia Pasqual

doi:10.3233/bmr-150622

Cited by 30 publications

(44 citation statements)

References 29 publications

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“…Hollman et al [30] showed the trans verseplane hip motion and hip extensor strength as sociated with frontalplane knee kinematics during a jumplanding task. A systematic review noted fe males who presented PFP also showing deficits in hip extensor muscle strength [16], and a recent study found FPPApeak values negatively correlated with the strength of hip abduction and posterolateral complex only for the group without PFP (FPPApeak around 7°) [11].…”

Section: Discussionmentioning

confidence: 99%

“…However, no association was observed between the FPPA of the knee and strength of posterolateral hip muscles in a sample with PFP [11]. In a recent study, deficits of strength (28%, approxi mately) were observed on hip extensors in women with PFP compared with the control group [11]. Another study suggested an association between gluteus maxi mus weakness and PFP [12].…”

Section: Introductionmentioning

confidence: 92%

“…The subjects were asked to step down, touch their toe to the ground, and return to the starting position. The test was standardized: 2 sec onds for the descent phase, 1 second to touch the ground, and 2 seconds to return [11]. A chronometer was used to control the procedure.…”

Section: Knee Angle Assessmentmentioning

confidence: 99%

“…The frontal plane projection angle (FPPA) is a two dimensional measurement often used to assess knee Human Movement, Vol. 19, No 1, 2018 humanmovement.pl kinematics during closed kinetic chain activities [11]. FPPA is related to knee pain severity [12], the prediction of PFP [13], and the interaction between hip abductor isometric torque [14].…”

Section: Introductionmentioning

confidence: 99%

“…Surface electromyography (sEMG) can assess hip muscles activation during dynamic knee valgus, high lighting the important role of the gluteus medius to lower limb kinematics [1,15]. However, no association was observed between the FPPA of the knee and strength of posterolateral hip muscles in a sample with PFP [11]. In a recent study, deficits of strength (28%, approxi mately) were observed on hip extensors in women with PFP compared with the control group [11].…”

Section: Introductionmentioning

confidence: 99%

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Gluteal activation and increased frontal plane projection angle during a step-down test in young women

Barbosa¹,

Vieira²,

Barbosa³

et al. 2018

Hum Mov.

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Purpose. To investigate how the activation of gluteus maximus and gluteus medius interacts with different frontal plane projec tion angles (FPPA) in healthy young women presenting dynamic knee valgus in one limb while performing the stepdown test. Methods. The total of 18 young women presenting FPPA > 15° during the stepdown test in one limb (dynamic knee valgus) were assessed. The other limb should present less than 15° for comparisons. The amplitude of muscle activation was assessed through surface electromyography of gluteus medius and gluteus maximus during 8 subsequent weight bearing stepdown tests. Results. FPPA was positively correlated with gluteus maximus activation and with the assessed side showing FPPA > 15°, which also revealed increased activation of gluteus maximus. No differences were noted for gluteus medius. The principal component analysis explained 73% of the variance in 2 components, with gluteus maximus explaining 48% of the variance on the 1st component. Gluteus medius explained 25% on the 2nd component. Conclusions. Gluteus maximus seems to be a major component to explain dynamic knee valgus in women without symptoms of patellofemoral pain, probably owing to weakness and lack of stabilization of other proximal muscles of the hipknee complex during the task.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 92%

Section: Knee Angle Assessmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Gluteal activation and increased frontal plane projection angle during a step-down test in young women

Barbosa¹,

Vieira²,

Barbosa³

et al. 2018

Hum Mov.

View full text Add to dashboard Cite

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Effects of task and hip-abductor fatigue on lower limb alignment and muscle activation

et al. 2021

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Purpose Fatigue-induced hip-abductor weakness may exacerbate lower-limb misalignments during different dynamic single-leg tasks. We sought to evaluate the effects of fatigue and task on lower limb kinematics and muscle activation and to find associations between measurements obtained in two tasks. Methods One-group pretest–posttest design. Seventeen healthy adults (9 W) performed the single-leg squat (SLSQUAT) and the single-leg hop (SLHOP) before and after a hip-abduction fatigue protocol. Hip adduction, knee frontal plane projection angle (knee FPPA) and heel inversion displacement were measured during the eccentric phase of the SLSQUAT and the SLHOP, as well as activation of the gluteus medius (GMed), tensor fascia latae (TFL), peroneus longus (PER) and tibialis anterior (TA). Moments and tasks were compared using a repeated-measures two-way ANOVA. Correlation between tasks was evaluated using Spearman’s correlation. Results No differences in kinematics or activation were found between moments. Hip-adduction displacement (P = 0.005), GMed (P = 0.008) and PER (P = 0.037) activation were higher during SLSQUAT, while TA activation was higher during SLHOP (P < 0.001). No differences were found between tasks in knee FPPA and heel inversion. Hip-adduction and knee FPPA were not correlated between tasks, while ankle inversion displacement was positively correlated (rs = 0.524–0.746). Conclusion Different characteristics of SLSQUAT (slower and deeper) seem to have led to increased hip adduction displacement, GMed, and PER activation and decreased TA activation, likely due to higher balance requirements. However, hip-abductor fatigue didn’t influence lower-limb alignment during the tasks. Finally, evaluations should be performed with different single-leg tasks since they don’t give the same lower-limb alignment information.

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

et al. 2021

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Purpose This study aimed to determine if forward step-down task frontal kinematics differ in women with and without patellofemoral pain (PFP). Methods Cross-sectional study. A total of 32 women were allocated into a healthy control group (CG; n = 16) and to a PFP (n = 16) group. All participants performed two trials with five consecutive forward step-down task (FSD) repetitions each. A video camera, positioned 3 m from the participant's frontal plane, recorded the movement (sampling rate = 30 Hz). All recorded videos were evaluated on Image-J software, and the following outcomes were obtained: delta mean (∆mean, the difference between final and initial positions) and delta peak (∆peak) values for Q-angle (Qϴ), hip and knee frontal plane projection angles, and dynamic valgus index. We compared groups with the Student's t test for independent samples and the Mann-Whitney test. Results Groups showed similar (p > 0.05

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Relationship between frontal plane projection angle of the knee and hip and trunk strength in women with and without patellofemoral pain

Abstract: These findings suggest that women with patellofemoral pain present greater dynamic knee valgus and hip muscle weakness. Abductor and posterolateral hip muscles strength are associated with increased FPPA only in the pain-free population.

Cited by 30 publications

References 29 publications

Gluteal activation and increased frontal plane projection angle during a step-down test in young women

Gluteal activation and increased frontal plane projection angle during a step-down test in young women

Effects of task and hip-abductor fatigue on lower limb alignment and muscle activation

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

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