scholarly journals Motor-Cognitive Neural Network Communication Underlies Walking Speed in Community-Dwelling Older Adults

Author(s):  
Victoria N. Poole ◽  
On-Yee Lo ◽  
Thomas Wooten ◽  
Ikechukwu Iloputaife ◽  
Lewis A. Lipsitz ◽  
...  
2016 ◽  
Vol 24 (2) ◽  
pp. 214-222 ◽  
Author(s):  
Addie Middleton ◽  
George D. Fulk ◽  
Michael W. Beets ◽  
Troy M. Herter ◽  
Stacy L. Fritz

Daily ambulatory activity is associated with health and functional status in older adults; however, assessment requires multiple days of activity monitoring. The objective of this study was to determine the relative capabilities of self-selected walking speed (SSWS), maximal walking speed (MWS), and walking speed reserve (WSR) to provide insight into daily ambulatory activity (steps per day) in community-dwelling older adults. Sixty-seven older adults completed testing and activity monitoring (age 80.39 [6.73] years). SSWS (R2 = .51), MWS (R2 = .35), and WSR calculated as a ratio (R2 = .06) were significant predictors of daily ambulatory activity in unadjusted linear regression. Cutpoints for participants achieving < 8,000 steps/day were identified for SSWS (≤ 0.97 m/s, 44.2% sensitivity, 95.7% specificity, 10.28 +LR, 0.58 −LR) and MWS (≤ 1.39 m/s, 60.5% sensitivity, 78.3% specificity, 2.79 +LR, 0.50 −LR). SSWS may be a feasible proxy for assessing and monitoring daily ambulatory activity in older adults.


Author(s):  
Ayelet Dunsky ◽  
Aviva Zeev ◽  
Yael Netz

The purpose of the current study was to identify significant predictors of walking speed (WS) among community-dwelling older adults, as it is one of the most representative measures of functioning in their daily lives. Seventy-seven (24 adult men, 26 adult women, and 27 older-adult women) community-dwelling older adults (73.7 ± 4.9 years) performed two assessments, over a 12-month period. Several physical, cognitive, and psychological tests were performed, as well as assessing the preferred WS. Multiple linear regression, stratified by gender, was used to identify significant predictors of future WS. For the adult men, walking and functional performances at the first assessment predicted 71.9%; for adult women, reaction time, walking, and balance performance predicted 64.4%; and, for the older-adult women, fast walking and reaction time predicted 48.2% of the variance of future WS. Clinicians should consider including different exercises for each group of older adults to evaluate and preserve functional abilities.


2018 ◽  
Vol 2 (suppl_1) ◽  
pp. 365-365
Author(s):  
J Zhou ◽  
V Poole ◽  
T Wooten ◽  
O Lo ◽  
I Iloputaife ◽  
...  

2018 ◽  
pp. 1-3
Author(s):  
M. do Carmo Correia de Lima ◽  
T. Loffredo Bilton ◽  
W. Jefferson de Sousa Soares ◽  
L. Paccini Lustosa ◽  
E. Ferriolli ◽  
...  

This study investigates the diagnostic accuracy of the combination of usual walking speed (UWS) and maximum walking speed (MWS) to identify frailty in community-dwelling older adults. A population-based study with 758 participants aged 65 and older was conducted. Frailty syndrome was determined using the Fried phenotype. UWS and MWS were evaluated in a 4.6-meter path. Both measures were categorized using the 1.0 m/s cut points, and participants were categorized into three groups: those with “very good”, “good” and “insufficient” walking reserve capacity (WRC). Of all participants, 9% were identified as frail and 47% as prefrail. The “insufficient” WRC presented a low sensitivity of 0.55, high specificity of 0.91 and moderately useful likelihood ratios (LR+ 6.57, LR- 0.48) to identify frailty. Based on Fagan’s nomogram, an elder’s corresponding post-test probability of being frail with an “insufficient” WRC would be around 40%, which substantially increased the diagnostic accuracy of frailty.


2018 ◽  
Vol 99 (10) ◽  
pp. e70
Author(s):  
Logan Taulbee ◽  
Julia M. Wright ◽  
Allison O' Halloran ◽  
Trishia Yada ◽  
Lauren E. Graham ◽  
...  

2016 ◽  
Vol 29 (2) ◽  
pp. 215-221 ◽  
Author(s):  
Wakako Inoue ◽  
Tome Ikezoe ◽  
Tadao Tsuboyama ◽  
Ikuya Sato ◽  
Katarzyna Bronislawa Malinowska ◽  
...  

2021 ◽  
Author(s):  
Feng Wang ◽  
Jingru Wang ◽  
Peipei Han ◽  
Yuewen Liu ◽  
Weibo Ma ◽  
...  

Abstract Background: Both sarcopenia and loss of teeth are associated with aging. The purpose of this study was to investigate potential relationships between tooth loss and sarcopenia and components of sarcopenia, including declining muscle mass, muscle strength, and physical performance, in Chinese suburban community-dwelling older adults.Methods: The subjects were 1494 people over 60 years of age (average age: 71.64 ± 5.97 years;men, n=609) from Chongming District of Shanghai and Hangu District of Tianjin. The Asian Working Group for Sarcopenia (AWGS) criteria were used to define sarcopenia. The three basic diagnostic components of sarcopenia (muscle mass, muscle strength, and physical performance) were assessed using a bioelectrical impedance analyzer, a grip strength test, and a four-meter walk test, respectively. The subjects were divided into groups depending on self-reported loss of teeth. Results: After adjusting for confounding variables, we found no correlation between tooth loss and sarcopenia or muscle mass. However, the walking speed of female participants with at least 10 teeth lost was 0.059 m/s slower than that of participants with fewer than 10 teeth lost (P<0.001), and grip strength was 1.577 kg lower among male participants with at least 10 teeth lost than among males with fewer than 10 teeth lost (P =0.023).Conclusion: Our results suggest that tooth loss is negatively correlated with muscle strength in males and average walking speed in females. These results are consistent with the importance of good oral hygiene in preventing declines of physical performance in older adults.


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