scholarly journals Domain-specific self-perceptions of aging are associated with different gait patterns in older adults: a cross-sectional latent profile analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Anne Blawert ◽  
Sebastian Krumpoch ◽  
Ellen Freiberger ◽  
Susanne Wurm
Keyword(s):  
Older Adults ◽  
Gait Speed ◽  
Latent Profile Analysis ◽  
Profile Analysis ◽  
Gait Pattern ◽  
Gait Patterns ◽  
Self Perceptions ◽  
Gait Parameters ◽  
Perceptions Of Aging ◽  
Objectively Measured

Abstract Background Previous studies have pointed to the impact of self-perceptions of aging (SPA) on self-reported physical function in later life. However, less is known about associations of SPA with objectively measured physical function, especially gait. Research that examined other psychological variables and objectively measured gait has focused on single gait parameters such as gait speed, which seems to fall short for the complexity of this movement. Some approaches have proposed ways to identify gait patterns in specific patient groups, but not in community samples. Our goal was (a) to identify gait patterns based on a combination of important gait parameters in a community sample, and (b) to investigate differential associations of gain- and loss-related SPA with these gait patterns. Methods The study used an electronic walkway to assess gait parameters of 150 community dwelling adults aged 71–93 years (61.0% women) at their usual and maximum gait speed. SPA were assessed with a questionnaire. We used latent profile analysis (LPA) to identify groups exhibiting distinct gait patterns and binary logistic regression to investigate associations of SPA with these groups, controlling for personality traits, number of illnesses, age, gender, and education. To compare overall function between groups, a t-test for scores in the Short Physical Performance Battery was used. Results LPA revealed two distinct groups in both gait speed conditions. The fit group exhibited a stable, well-coordinated and faster gait pattern, while the functionally limited group’s gait pattern was less stable, less coordinated and slower. The odds of belonging to the functionally limited group were increased by loss-related SPA at usual gait speed, while the odds of belonging to the fit group were increased by gain-related SPA at individual maximum speed. Conclusions The findings (a) suggest LPA as a useful approach to investigate complex gait patterns considering several gait parameters simultaneously, and (b) provide first evidence for differential associations of gain- and loss-related SPA with gait patterns at usual and maximum gait speed. Intervention studies addressing gait in older adults should additionally address gain-related views on aging.

scholarly journals Domain-Specific Self-Perceptions of Aging are Associated with Different Gait Patterns in Older Adults: A Cross-Sectional Latent Profile Analysis

2021 ◽  
Author(s):  
Anne Blawert ◽  
Sebastian Krumpoch ◽  
Ellen Freiberger ◽  
Susanne Wurm
Keyword(s):  
Gait Speed ◽  
Latent Profile Analysis ◽  
Profile Analysis ◽  
Gait Pattern ◽  
Gait Patterns ◽  
Self Perceptions ◽  
Gait Parameters ◽  
Perceptions Of Aging ◽  
Objectively Measured

Abstract Background: Previous studies have pointed to the impact of self-perceptions of aging (SPA) on self-reported physical function in later life. However, less is known about the role of SPA for objectively measured physical function, especially gait. Research that examined other psychological variables and objectively measured gait has focused on single gait parameters such as gait speed, which seems to fall short for the complexity of this movement. Some approaches have proposed ways to identify gait patterns in specific patient groups (such as patients with hemiplegia), but not in community samples. Our goal was a) to identify gait patterns based on a combination of important gait parameters in a community sample, and b) to investigate differential associations of gain- and loss-related SPA with these gait patterns.Methods: The study used an electronic walkway to assess gait parameters of 150 community dwelling adults aged 71-93 years (61.0% women) at their usual and maximum gait speed. SPA were assessed with a questionnaire. We used latent profile analysis (LPA) to identify groups exhibiting distinct gait patterns and binary logistic regression to investigate associations of SPA with these groups, controlling for personality traits, number of illnesses, age, gender, and education. To compare overall function between groups, a t-test for scores in the Short Physical Performance Battery was used.Results: LPA revealed two distinct groups in both gait speed conditions. The fit group exhibited a stable, well-coordinated and faster gait pattern while the functionally limited group’s gait pattern was less stable, less coordinated and slower. The odds of belonging to the functionally limited group were increased by loss-related SPA at usual gait speed, while the odds of belonging to the fit group were increased by gain-related SPA at individual maximum speed. Conclusions: The findings a) suggest LPA as a useful approach to investigate complex gait patterns considering several gait parameters simultaneously, and b) provide first evidence for the differential role of gain- and loss-related SPA for gait patterns at usual and maximum gait speed. Intervention studies addressing gait in older adults should additionally address gain-related views on aging.Trial registration: NA

Digital Biomarkers of Cognitive Frailty: The Value of Detailed Gait Assessment Beyond Gait Speed

Gerontology ◽  
2021 ◽  
pp. 1-10
Author(s):  
He Zhou ◽  
Catherine Park ◽  
Mohammad Shahbazi ◽  
Michele K. York ◽  
Mark E. Kunik ◽  
...  
Keyword(s):  
Older Adults ◽  
Steady State ◽  
Dual Task ◽  
Gait Speed ◽  
Stride Length ◽  
Cognitive Frailty ◽  
Single Task ◽  
Double Support ◽  
Gait Parameters ◽  
Digital Biomarkers

<b><i>Background:</i></b> Cognitive frailty (CF), defined as the simultaneous presence of cognitive impairment and physical frailty, is a clinical symptom in early-stage dementia with promise in assessing the risk of dementia. The purpose of this study was to use wearables to determine the most sensitive digital gait biomarkers to identify CF. <b><i>Methods:</i></b> Of 121 older adults (age = 78.9 ± 8.2 years, body mass index = 26.6 ± 5.5 kg/m<sup>2</sup>) who were evaluated with a comprehensive neurological exam and the Fried frailty criteria, 41 participants (34%) were identified with CF and 80 participants (66%) were identified without CF. Gait performance of participants was assessed under single task (walking without cognitive distraction) and dual task (walking while counting backward from a random number) using a validated wearable platform. Participants walked at habitual speed over a distance of 10 m. A validated algorithm was used to determine steady-state walking. Gait parameters of interest include steady-state gait speed, stride length, gait cycle time, double support, and gait unsteadiness. In addition, speed and stride length were normalized by height. <b><i>Results:</i></b> Our results suggest that compared to the group without CF, the CF group had deteriorated gait performances in both single-task and dual-task walking (Cohen’s effect size <i>d</i> = 0.42–0.97, <i>p</i> &#x3c; 0.050). The largest effect size was observed in normalized dual-task gait speed (<i>d</i> = 0.97, <i>p</i> &#x3c; 0.001). The use of dual-task gait speed improved the area under the curve (AUC) to distinguish CF cases to 0.76 from 0.73 observed for the single-task gait speed. Adding both single-task and dual-task gait speeds did not noticeably change AUC. However, when additional gait parameters such as gait unsteadiness, stride length, and double support were included in the model, AUC was improved to 0.87. <b><i>Conclusions:</i></b> This study suggests that gait performances measured by wearable sensors are potential digital biomarkers of CF among older adults. Dual-task gait and other detailed gait metrics provide value for identifying CF above gait speed alone. Future studies need to examine the potential benefits of gait performances for early diagnosis of CF and/or tracking its severity over time.

scholarly journals The Association Between Recent Family Death and Self-Perceptions of Aging Among Middle-Aged and Older Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 450-450
Author(s):  
Shu Xu
Keyword(s):  
Older Adults ◽  
Child Death ◽  
Parental Death ◽  
Middle Aged ◽  
Cross Sectional ◽  
Self Perceptions ◽  
Perceptions Of Aging ◽  
Nationally Representative ◽  
And Gender ◽  
Family Loss

Abstract The loss of a family member may have a significant influence on one’s aging experience in life. Self-perceptions of aging, which are an individual’s beliefs or evaluation of their experiences of aging, have been described as an important factor for one’s health and daily life. However, there is little research on the association between family death and self-perceptions of aging. This study examines the relationships between recent family death, self-perceptions of aging, and gender of the bereaved among middle-aged and older adults. Using nationally representative data from the Health and Retirement Study (HRS), we conducted cross-sectional analysis on adults age 50 years and older (n=1,839). Self-perceptions of aging were accessed by 8 items derived from the Attitudes Toward Own Aging subscale of the Philadelphia Geriatric Center Morale Scale and the Berlin Aging Study, and we considered recent family death (i.e., parental death, spousal death, sibling death and child death), as well as gender of the bereaved. Multiple linear regression analyses revealed that respondents who experienced recent family death report less positive self-perceptions of aging compared to those who did not experience recent family death (t = 12.40, p &lt; .01). Recent parental death was more negatively related with self-perceptions of aging for bereaved women than for bereaved men (χ2 = 4.28, p &lt; .05). Findings suggest that middle-aged and older adults experiencing recent family loss have less positive self-perceptions of aging, and gender of the bereaved plays an important role in the relationship between parental death and self-perceptions of aging.

scholarly journals The Role of Self-Perceptions of Aging for Recovery of Older Adults After a Hospital Stay

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 588-588
Author(s):  
Anne Blawert ◽  
Ellen Freiberger ◽  
Susanne Wurm
Keyword(s):  
Older Adults ◽  
Hospital Stay ◽  
Physical Function ◽  
Fear Of Falling ◽  
Health Events ◽  
Self Perceptions ◽  
Perceptions Of Aging ◽  
One Year ◽  
Psychological Pathway

Abstract For older adults, a hospital stay can lead to loss of physical function and frailty. It is therefore important to investigate factors for recovery after hospitalization. Recent studies suggest negative self-perceptions of aging (SPA) as a potential risk factor in the context of serious health events. This ongoing longitudinal study investigates how negative SPA might contribute to worse physical recovery (assessed with the Short Physical Performance Battery) after hospital stay in a sample of 244 German adults aged 75 to 96. Preliminary mediation analysis based on available data of the first 50 participants indicate that negative SPA is related to increased fear of falling after 6 months, which predicts worse physical function one year after hospitalization (indirect effect: B = -0.70, SE = 0.41, p = .09). The results stress the importance of SPA for health recovery in old age and introduce fear of falling as a psychological pathway.

Health-related lifestyle and dropout from a web-based physical activity intervention trial in older adults: A latent profile analysis.

2021 ◽  
Vol 40 (8) ◽  
pp. 481-490
Author(s):  
Tiara Ratz ◽  
Claudia Voelcker-Rehage ◽  
Claudia R. Pischke ◽  
Saskia Muellmann ◽  
Manuela Peters ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Latent Profile Analysis ◽  
Physical Activity Intervention ◽  
Profile Analysis ◽  
Intervention Trial ◽  
Web Based ◽  
Health Related ◽  
Latent Profile

Dynamic and Reactive Walking for Humanoid Robots Based on Foot Placement Control

2016 ◽  
Vol 13 (02) ◽  
pp. 1550041 ◽  
Author(s):  
Juan Alejandro Castano ◽  
Zhibin Li ◽  
Chengxu Zhou ◽  
Nikos Tsagarakis ◽  
Darwin Caldwell
Keyword(s):  
Center Of Mass ◽  
Humanoid Robots ◽  
Gait Pattern ◽  
Gait Patterns ◽  
Foot Placement ◽  
Inverted Pendulum Model ◽  
Gait Parameters ◽  
Pendulum Model ◽  
Single Mass ◽  
Walking Velocity

This paper presents a novel online walking control that replans the gait pattern based on our proposed foot placement control using the actual center of mass (COM) state feedback. The analytic solution of foot placement is formulated based on the linear inverted pendulum model (LIPM) to recover the walking velocity and to reject external disturbances. The foot placement control predicts where and when to place the foothold in order to modulate the gait given the desired gait parameters. The zero moment point (ZMP) references and foot trajectories are replanned online according to the updated foothold prediction. Hence, only desired gait parameters are required instead of predefined or fixed gait patterns. Given the new ZMP references, the extended prediction self-adaptive control (EPSAC) approach to model predictive control (MPC) is used to minimize the ZMP response errors considering the acceleration constraints. Furthermore, to ensure smooth gait transitions, the conditions for the gait initiation and termination are also presented. The effectiveness of the presented gait control is validated by extensive disturbance rejection studies ranging from single mass simulation to a full body humanoid robot COMAN in a physics based simulator. The versatility is demonstrated by the control of reactive gaits as well as reactive stepping from standing posture. We present the data of the applied disturbances, the prediction of sagittal/lateral foot placements, the replanning of the foot/ZMP trajectories, and the COM responses.

scholarly journals Gait Parameter Adjustments for Walking on a Treadmill at Preferred, Slower, and Faster Speeds in Older Adults with Down Syndrome

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Beth A. Smith ◽  
Masayoshi Kubo ◽  
Beverly D. Ulrich
Keyword(s):  
Older Adults ◽  
Down Syndrome ◽  
Stride Frequency ◽  
Gait Patterns ◽  
Gait Stability ◽  
Foot Placement ◽  
Gait Parameters ◽  
Younger Age ◽  
All Speeds ◽  
Walking Speeds

The combined effects of ligamentous laxity, hypotonia, and decrements associated with aging lead to stability-enhancing foot placement adaptations during routine overground walking at a younger age in adults with Down syndrome (DS) compared to their peers with typical development (TD). Our purpose here was to examine real-time adaptations in older adults with DS by testing their responses to walking on a treadmill at their preferred speed and at speeds slower and faster than preferred. We found that older adults with DS were able to adapt their gait to slower and faster than preferred treadmill speeds; however, they maintained their stability-enhancing foot placements at all speeds compared to their peers with TD. All adults adapted their gait patterns similarly in response to faster and slower than preferred treadmill-walking speeds. They increased stride frequency and stride length, maintained step width, and decreased percent stance as treadmill speed increased. Older adults with DS, however, adjusted their stride frequencies significantly less than their peers with TD. Our results show that older adults with DS have the capacity to adapt their gait parameters in response to different walking speeds while also supporting the need for intervention to increase gait stability.

Texting While Walking Induces Gait Pattern Alterations in Healthy Older Adults

2018 ◽  
Vol 62 (1) ◽  
pp. 1908-1912 ◽  
Author(s):  
Massimiliano Pau ◽  
Micaela Porta ◽  
Giuseppina Pilloni ◽  
Federica Corona ◽  
Maria Chiara Fastame ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Complexity ◽  
Gait Pattern ◽  
Middle Aged ◽  
Similar Reduction ◽  
Gait Patterns ◽  
Healthy Older Adults ◽  
Double Support ◽  
Temporal Parameters ◽  
Spatio Temporal

The use of a mobile phone for texting purposes results in distracted walking which may lead to injuries. In particular, texting while walking has been shown to induce significant alterations in gait patterns. This study aimed to assess whether changes in the main spatio-temporal parameters of gait when simultaneously engaged in texting on a smartphone and walking are different in older adults relative to young and middle- aged individuals. A total of 57 participants divided in three groups (19 older adults aged over 65, 19 young aged 20-40 and 19 middle-aged aged 41-64) were tested in two conditions: walking, and walking while texting on a smartphone. Spatio-temporal parameters of gait were assessed using a wearable accelerometer located on the lower back. The results show that texting induced similar reduction of gait speed, stride length and cadence in all groups. Slight (although significant) alterations of stance, swing and double support phases duration were found only for middle-aged participants. Such findings suggest that modifications of gait patterns due to texting seem unaffected by age, probably due to different perceptions of the cognitive complexity of the task and differential prioritization of its motor and cognitive aspects.

Sign in / Sign up

Export Citation Format

Share Document