Coupling motion between rearfoot and hip and knee joints during walking and single-leg landing. (December 2017)

• Record Type: Journal Article
• Authors: Koshino, Yuta; Yamanaka, Masanori; Ezawa, Yuya; Okunuki, Takumi; Ishida, Tomoya; Samukawa, Mina; Tohyama, Harukazu
• Is Part Of: Journal of electromyography and kinesiology. Volume 37(2017:Dec.)
• Page Start: 75
• Page End: 83
• Publication Date: 2017-12
• Subjects: Kinetic chain -- Foot pronation -- Ankle kinematics -- Lower limb -- Cross correlation -- Hindfoot -- Vector coding technique; Electromyography -- Periodicals; Kinesiology -- Periodicals; Electromyography -- Periodicals; Movement -- physiology -- Periodicals; Muscles -- physiology -- Periodicals; Électromyographie -- Périodiques; Cinésiologie -- Périodiques; Electromyography; Kinesiology; Electronic journals; Periodicals; 616.740757
• DOI: 10.1016/j.jelekin.2017.09.004
• Languages: English
• ISSNs: 1050-6411

Abstract

Abstract: The objective of the current study was to investigate the kinematic relationships between the rearfoot and hip/knee joint during walking and single-leg landing. Kinematics of the rearfoot relative to the shank, knee and hip joints during walking and single-leg landing were analyzed in 22 healthy university students. Kinematic relationships between two types of angular data were assessed by zero-lag cross-correlation coefficients and coupling angles, and were compared between joints and between tasks. During walking, rearfoot eversion/inversion and external/internal rotation were strongly correlated with hip adduction/abduction ( R = 0.69 and R = 0.84), whereas correlations with knee kinematics were not strong ( R ≤ 0.51) and varied between subjects. The correlations with hip adduction/abduction were stronger than those with knee kinematics ( P < 0.001). Most coefficients during single-leg landing were strong ( R ≥ 0.70), and greater than those during walking ( P < 0.001). Coupling angles indicated that hip motion relative to rearfoot motion was greater than knee motion relative to rearfoot motion during both tasks ( P < 0.001). Interventions to control rearfoot kinematics may affect hip kinematics during dynamic tasks. The coupling motion between the rearfoot and hip/knee joints, especially in the knee, should be considered individually.