Multi-Segmental Motion in Foot during Counter-Movement Jump with Toe Manipulation

Abstract

Human toes are crucial for vertical jumping performance. The purpose of this study is to investigate the acute effect of hallux abduction manipulation on foot inter-segment kinematic alterations and plantar loading redistribution during the countermovement jump (CMJ). Thirteen participants were recruited to join in this experiment, for the collection of the foot inter-segment kinematics and plantar pressure data. During the take-off phase, the contact area presented a significant increase while the pressure-time integral decreased in the second metatarsal (M2), whilst the third metatarsal (M3) and fourth metatarsal (M4) decreased significantly in pressure-time integral with Toe-Manipulation (TM). During the landing phase, maximum force and peak pressure were smaller in the big toe (BT) after hallux abduction manipulation. HXFFA (hallux-forefoot angle) showed a greater pronation after manipulation in the frontal plane (0%–26% and 50%–100%) with p = 0.002 and p < 0.001. In the transverse plane, the smaller adductions were found during 62%–82% in take-off and 62%–91% in landing (p = 0.003 and p < 0.001). There was a redistributed plantar loading during the landing phase from the medial to lateral forefoot. However, a reduced hallux range of motion in the TM session was exhibited, compared to Non-Toe-Manipulation (NTM).

Effect of Long-Distance Running on Inter-segment Foot Kinematics and Ground Reaction Forces: A Preliminary Study

“…The Oxford Foot Model (OFM), which divides the foot into several rigid segments, has shown robust reliability on inter-segmental angles through the gait cycle (Milner and Brindle, 2016;Balsdon and Dombroski, 2018). It has been extensively applied to explore the biomechanical properties of the foot during different movement tasks, such as walking (Sun et al, 2018), running (Xiang et al, 2020a), and jumping (Xiang et al, 2020b). Nevertheless, information concerning the influence of prolonged running activities on foot inter-segment kinematics is still limited.…”

Biomechanical Characteristics between Bionic Shoes and Normal Shoes during the Drop-Landing Phase: A Pilot Study

“…Previous study has proved that termination movements like stop-jumping, side-cutting, and landing could be the main risk for anterior cruciate ligament (ACL) injury [ 49 ], and Griffin further suggested that higher trunk, hip, and knee flexion can lead to fewer injuries. Additionally, there were four further studies that indicate that females have stiffer postures during these termination movements [ 50 , 51 , 52 , 53 ]; A stiffer landing position will cause greater impact when landing, which will result in greater impact on the knee, thus increasing the risk of knee injury, such as ACL. In our study, BS wearers had higher hip and knee flexion angles in the sagittal plane when performing an SLL, compared with NS wearers.…”

Temporal kinematic and kinetics differences throughout different landing ways following volleyball spike shots

“…A Vicon motion capture system (Vicon Metrics Ltd., Oxford, UK) with eight-cameras was used to capture the motion during the landing phase, and the sampling frequency was set at 200 Hz. 11,30,31 According to the experimental requirements and previous data acquisition, 36 reflective markers (diameter: 12.5 mm) were attached to the participants' lower limbs to track movement. According to a previous study, 32 During the static experiment, the data that was collected from the subjects in the anatomically neutral position and was used as initial coordinates.…”