Females with patellofemoral pain have impaired impact absorption during a single-legged drop vertical jump

Autor(es)

Nunes, Guilherme S. ^{[1, 2]} ; Barton, Christian John ^{[3, 2]} ; Serrao, Fabio Viadanna ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Physiotherapy, Sao Carlos, SP - Brazil

^[2] La Trobe Univ, Sch Allied Hlth, La Trobe Sport & Exercise Med Res Ctr, Melbourne, Vic - Australia

^[3] Univ Melbourne, St Vincents Hosp, Dept Surg, Melbourne, Vic - Australia

• Tipo de documento: Artigo Científico
• Fonte: GAIT & POSTURE; v. 68, p. 346-351, FEB 2019.
• Citações Web of Science: 1

Resumo

Background: Females with patellofemoral pain (PFP) have been reported to land with altered biomechanics in some, but not all studies. Kinematic alterations previously reported may indicate, and relate to potential impairments in absorbing impact. Research question: To compare vertical ground reaction force (vGRF) and lower limb kinematics during sing-lelegged drop vertical jumps in females with and without PFP; and establish the relationship between vGRF and kinematics during this task. Methods: Fifty-two physically active females (26 with PFP and 26 controls) participated in the present cross-sectional study. Peak of vGRF was evaluated during landing; and lower limb kinematics in the sagittal and frontal planes during deceleration (landing) and acceleration (take-off) phases were evaluated. Results: The PFP group had 11% greater vGRF (p < 0.01); and 13-24% lower hip, knee and ankle excursion in the sagittal plane during acceleration and deceleration phases (p < 0.02) compared to the control group. No significant between group differences (p > 0.05) for hip, knee and ankle excursion in the frontal plane were identified. Greater impact was significantly correlated with reduced knee (r = -0.56), hip (r = -0.50) and ankle (r = -0.41) excursion in the sagittal plane during the acceleration phase in the control group, but not in the PFP group. No significant correlations were found between vGRF and kinematics variables during the deceleration phase in either group. Significance: Impaired ability to absorb load and reduced lower limb movement in the sagittal plane during landing in females with PFP may provide separate treatment targets during rehabilitation. (AU)

• Processo FAPESP: 16/09438-7 - O efeito de órteses para os pés na biomecânica do membro inferior, pelve e tronco durante agachamentos unipodais de indivíduos com e sem dor patelofemoral
• Beneficiário: Guilherme Silva Nunes
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 15/01704-7 - Análise morfológica, do pico de torque isométrico e da taxa de desenvolvimento de torque dos músculos do quadril e suas relações com a cinemática e a cinética do membro inferior, pelve e tronco em mulheres com e sem dor patelofemoral
• Beneficiário: Guilherme Silva Nunes
• Modalidade de apoio: Bolsas no Brasil - Doutorado