Coordination and symmetry patterns during the drop vertical jump, 6‐months after first‐time lateral ankle sprain

Abstract

To evaluate the adaptive movement and motor control patterns of a group with a 6-month history of first-time lateral ankle sprain (LAS) injury during a drop vertical jump (DVJ) task. Fifty-one participants with a 6-month history of first-time acute LAS injury and twenty controls performed a DVJ task. 3D kinematic and sagittal plane kinetic profiles were plotted for the lower extremity joints of both limbs for the drop jump (phase 1) and drop landing (phase 2) phases of the DVJ. Inter-limb symmetry and the rate of impact modulation (RIM) relative to bodyweight (BW) during both phases of the DVJ were also determined. LAS participants displayed bilateral increases in knee flexion and an increase in ankle inversion during phases 1 and 2, respectively. They also displayed reduced ankle plantar flexion on their injured limb during both phases of the DVJ (p < 0.05); increased inter-limb asymmetry of RIM was noted for both phases of the DVJ, while the moment-of-force profile exhibited bilaterally greater hip extensor dominance during phase 1. Participants with a 6-month history of first-time LAS display some movement patterns consistent with those observed in chronic ankle instability populations during similar tasks.

Neuromuscular Control Mechanisms During Single‐Leg Jump Landing in Subacute Ankle Sprain Patients: A Case Control Study

“…Our kinematic results in the sagittal plane were consistent with findings of previous studies [18,20]. Although our jump task differs from those of Doherty et al [18,19], we also found that the ankle joint position in the sagittal plane differs between ankle sprain patients and healthy controls before and after landing. Our findings indicate that ankle mobility should be treated during rehabilitation.…”

“…In addition, drop landing is a highly controlled laboratory task that consists only of the eccentric phase of the jump landing cycle, whereas forward jump landing consists of a concentric (take-off) and an eccentric (landing) phase, such as athletes commonly practice in sports [35]. In (acute) ankle sprain patients, a reduced ankle plantar flexion was found while performing a bipedal drop vertical jump 2 weeks as well as 6 months after the initial injury compared to those in healthy controls [18,19]. Our kinematic results in the sagittal plane were consistent with findings of previous studies [18,20].…”

Lower Limb Joint Kinetics During a Side-Cutting Task in Participants With or Without Chronic Ankle Instability

“…15 The increased hip-joint stiffness in the CAI group reflected a hip-dominant movement strategy during the side-cutting task. Researchers have provided evidence that a hip-dominant movement strategy was used by individuals in the acute 10,11,29 and chronic [15][16][17][18]21 stages of LASs. Whereas the cause of this longitudinal dynamic-movement adaptation is unknown, the evidence suggested that a hipdominant movement strategy was used at various stages after an LAS.…”

Asymmetry Indices in Female Runners as Predictors of Running Velocity

“…Furthermore, it is known that muscle strength asymmetry results in asymmetry during a vertical jump [32]. Therefore, the evaluation of asymmetry in athletes is not only based on the evaluation of muscle strength but also on the ground reaction force recorded during various types of vertical jumps [33,34,35,36]. Therefore, a comprehensive evaluation of asymmetry in running is needed.…”