Dynamic postural control during step down task in patients with patellofemoral pain syndrome

Abstract

[Purpose] This study aimed to examine the differences in dynamic postural control during forward step down (FSD) task in patients with patellofemoral pain syndrome (PFPS). [Participants and Methods] Sixty-eight participants (34 males and 34 females) were divided into the following 2 groups: 34 PFPS patients (17 males and 17 females) and 34 healthy controls (17 males and 17 females). Each participant performed FSD task from a height of 20 cm. A force platform was used to extract the center of pressure parameters during FSD task for calculation of time to stabilization (TTS) in the anterior-posterior (A/P) and medial-lateral (M/L) direction. [Results] PFPS group took longer time to stabilize than the healthy control group in A/P and M/L directions. A main effect for direction was found, and this indicated that the A/P TTS of 8.43 ± 0.79s was longer than the M/L TTS of 5.56 ± 1.95s in healthy participants and A/P TTS of 9.09 ± 0.82s was longer than the M/L TTS of 7.15 ± 2.11s in PFPS. [Conclusion] These findings suggest that dynamic postural control can be affected in PFPS patients.

The Effects of 12-Weeks of Sensorimotor Exercise on Pain, Strength, Pelvic Drop, and Dynamic Knee Valgus in Males With Patellofemoral Pain Syndrome

“…consistent with the study of Amanda and colleagues [35]. The pelvis is located in the center of the movement chain in all movements [15]. Based on the movement chain theory, orthopedic or deformity conditions are extended to other sections and affect other parts and cause increased DNV and applied torque on the knee joint.…”

“…The third stage was related to the measurement of PD and DNV, i.e. performed in the form of two dimensions when descending 7 steps with a height of 18 cm and a width of 28 cm [15]. To evaluate the movement pattern, a Sony Handycam DCR-HC37 digital camera (made in Japan) with a sampling rate of 40 Hz and a 10 optical zoom was employed.…”

Is Postural Control Affected in People with Patellofemoral Pain and Should it be Part of Rehabilitation? A Systematic Review with Meta-analysis

“…We concluded that the inclusion of the Felicio et al [ 88 ] study did not impact the results. Studies not included in meta-analysis : Naserpour et al [ 103 ] was the only study that evaluated the time to CoP stabilisation and reported statistical difference between groups (PFP group took a longer time to stabilise); and Stensdotter et al [ 104 ] did not report their data in detail (Additional file 8 ).

Fig.

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Efeito da dor muscular aguda na redistribuição da força isométrica gerada simultaneamente pelos quatro membros durante uma tarefa motora de geração de força alvo

“…Alguns efeitos da dor sobre o movimento humano já foram observados em estudos clínicos, como por exemplo a alteração de variáveis biomecânicas da marcha (CREABY; BENNELL; HUNT, 2012;CROSSLEY et al, 2012;MÜNDERMANN;DYRBY;ANDRIACCHI, 2005), alteração da amplitude de movimento da articulação do joelho durante descida de degrau em pacientes com osteoartrite no joelho (SANCHEZ-RAMIREZ et al, 2016); alterações no equilíbrio (MOK; BRAUER;HODGES, 2004;NIES;SINNOTT, 1991), em mecanismos antecipatórios (HODGES et al, 2003;RICHARDSON, 1996;LEINONEN et al, 2001) e compensatórios da postura em pacientes com lombalgia (MACDONALD;HODGES, 2010;MADELEINE et al, 2006); e déficits no controle postural dinâmico durante descida de degrau em pessoas com síndrome da dor patelofemoral (NASERPOUR et al, 2018). Por fim, variações no comportamento motor também foram notadas em experimentos com dor aguda experimentalmente induzida.…”