Postural Sway, Falls, and Cognitive Status: A Cross-Sectional Study among Older Adults

Abstract

These findings identified the bounding limits of COP velocity as a hallmark feature of cognitive impairment-related changes in postural sway, in particular for MMAD. This point is of special interest for clinical balance assessment and fall prevention in MMAD patients in order to plan long-term targeted fall-prevention programs.

Balance characteristics in patients with major depression after a two-month walking exercise program: A pilot study

“…Healthy controls (n = 12) MDD (n = 9) These findings corroborate current studies showing the high sensitivity of velocity-based variables for characterizing balance control in adults with cognitive/mood disorders [8,9]. Additionally, MDD patients improved their postural responses at t +8weeks for the most challenging conditions (with foam surface in EC).…”

“…The AAMV was computed from the COP velocity series by extracting the maximum and minimum values of the series within nonoverlapping windows (of a length of 2 s). Then the absolute values of these extremes were averaged [8,9]. ) values are reported as measures of effect size, with large effects considered for p h2 !…”

“…Thus we postulate that the postural control strategies in MDD might also be positively modified after a walking program. Recent studies have demonstrated a key role for center-of-pressure (COP) velocity-based variables in postural sway in healthy individuals and in patients with cognitive impairment [8,9]. Specifically, velocity series appear to be bounded between upper and lower limits, underlining an intermittent corrective control process.…”

Compensatory postural adjustments in Parkinson’s disease assessed via a virtual reality environment

“…The latter is commonly observed with aging, leading to increased instability, falls and consequent injuries [7], [8], [9]. Disorders such as Idiopathic Parkinson Disease (IPD) further aggravate balance disturbances of elderly population [10], [11].Deficiency in the information processing from the temporoparietal cortex to the frontal cortex may cause errors in APA, CPA and gait difficulties, such as the "freezing of gait" [6].…”

Effect of Repetitive Transcranial Magnetic Stimulation on Psychomotor Retardation in Major Depression: A Pilot Feasibility Study

“…17 In addition, after the intervention, participants showed positive changes in psychomotor impairment, and they were able to perform more functional motor activities (e.g., more efficient postural control) associated with probable improvement in cognitive efficiency (e.g., improved dual postural performance). Accordingly, a better reweighting of velocity information, as indicated by lower mean velocity values after rTMS treatment, appears to be a meaningful objective index of an effective adaptive process, given the baseline characteristics related to psychomotor retardation (Mignardot et al 18 arrived at similar conclusions in patients with Alzheimer's disease). This point is also of special interest for clinical balance assessment and the risk for falls in major depression.…”