However, emerging studies revealed the potential attentional demand of rollator use, as well as falls and injuries attributed to usage. Despite the increasing dependence on rollators by the aging population, limited knowledge exists of the contextual, demographic, physical, and cognitive characteristics of the older adults who use these assistive mobility devices, which are crucial to determining the association between rollator use and falls. ...
(1) the dual-tasking effect of rollators on gait performance, and (2) a positive association between fall history of older adults and the interaction effect of being a rollator user and dual-task step-time variability.
2021 Ph.D. rehab science thesis
cadence was significantly lower while DT [Dual Task talking and] walking with the rollator compared to without. ....
AMD use did not improve DT walking performance; rather, it caused further degradation that resulted in slower gait compared to unassisted DT walking, especially for rollator users. ...This is a clinically relevant finding since older-adult users of AMDs are
believed to be at higher risks of falling if their capacity to perform dual-tasking cannot meet the attentional demands of the contextual environment, which could lead to trips, falls, and missteps while using the rollator or cane (Boisgontier et al., 2013; Muir-Hunter & Montero-Odasso, 2017;
Tung et al., 2011).
Posture. Kyphosis is characterized by forward-flexed posture and has been associated with
increased fall risk (Kado et al., 2007; Van Der Jagt-Willems et al., 2015) and impaired mobility
(Balzini et al., 2003). According to Balzini et al.'s (2003) classification of OWD measurements
(mild: ≤ 5cm, moderate: 5.1-8cm, and severe: >8cm), rollator users’ mean OWD (SD) is
classified as severe kyphosis (10.65cm (4.50)) whereas the No-AMD group has moderate
kyphosis (7.79cm (2.79)).
rollator users will demonstrate a
significant increase in relative risk for the predictor variables of fall history (gait, balance,
strength, demographics, and dual-task walking measures). This study’s findings revealed that the (2) interaction of rollator user with DT step-time variability was significantly associated with the fall history in partial support of the hypothesis. RR estimate demonstrated that the interaction of DT step-time variability and rollator user is significantly associated with fall history among
rollator users relative to the non-AMD older-adult group.
However, emerging studies revealed the potential attentional demand of rollator use, as well as falls and
injuries attributed to usage.
Yes, substantial muscle breakdown and atrophy occur within just 5 days of disuse (bed rest or immobilization) in the elderly. Older adults are particularly vulnerable, losing muscle mass and strength at a faster rate than younger individuals, often experiencing significant declines in leg strength after only a few days of inactivity ...
Older adults, especially those over 70, may suffer from muscle loss that is harder to recover, with some losing up to 15% of their strength in a single week of bed rest.
rate of force development (RFD),...While young and old adults demonstrated similar adaptive responses in preventing the loss of skeletal muscle thickness, RFD was retained in the young only.
https://pmc.ncbi.nlm.nih.gov/articles/PMC11330699/
[PDF] HUMAN MUSCLE DISUSE ATROPHY AFTER 28 DAYS OF IMMOBILIZATION IN A LOWER-LIMB WALKING BOOT: A CASE STUDY.
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