Balance recovery from medio-lateral perturbations of the upper body during standing

Perceptual-Motor Contributions to Static and Dynamic Balance Control in Children

“…That finding may indicate the higher contribution of vision during corrective backward body sway, when visual cues appear to be moving away from the eyes. Exteroceptive information can be available through the kinesthetic system as well, although it has been suggested that vision provides an easier anchoring for that information to the gravito-inertia reference frame (Patla, 1999). In the present study, poor correlation of kinesthesis with both static and dynamic balance measures was observed.…”

“…There are several possible reasons for that task-specific contribution of reaction time in dynamic balance control. First of all, reactive control of balance, through a reflex-activated feedback loop, might not be the only mechanism used by the CNS to control the position of the COM in response to external perturbations (Rietdyk, Patla, Winter, Ishac, & Little, 1999). Alternatively, it is possible that the CNS uses muscle tone to set joint stiffness to control body posture.…”

Análise comparativa do controle postural de indivíduos com e sem lesão do ligamento cruzado anterior do joelho

“…The lower limb mostly used for kicking was determined as the dominant. GCON was formed by 19 individuals, 11 men and 8 women with ages ranging from 18 to 30 years old, 17 with dominant right lower limb (15) . Nobody reported history of lower limb (LLLL) musculoskeletal or spine injuries, and no history of neurological, vestibular or uncorrected visual disorders; they didn't use drugs, alcohol or medicines that might compromise balance.…”

“…During static posture, the key measure used to calculate balance is PC oscillation, although there is no consensus regarding its importance on ACL injuries. The most frequently used equipment for measuring PC in many pathologies, which can be found in literature, are the strength platform (12,13,14,15) or an equipment similar to extensometric platforms (8,16,17,18) . However, there are other equipment able to measure PC, such as pressure sensors.…”

Balance Assessment in Older People Using Inertial Sensors

“…Body sway in quiet standing is like the motion of an inverted pendulum. According to inverted pendulum model of up-right posture it has been proven that centre of pressure (COP) displacement determines the COM acceleration [12] and the total body balance can be achieved by the regulation of the total body COM about the supporting foot [13]. The ankle and hip moments are associated with the joint moments required to move the COP in the direction of the COM displacement.…”