scholarly journals Is habitual sedentary behaviour time associated with lower extremity performance independent of moderate- to vigorous-intensity physical activity in older adults? −Cross-sectional analysis using uniaxial accelerometer–

2014 ◽  
Vol 63 (1) ◽  
pp. 169-176
Author(s):  
Yosuke Osuka ◽  
Noriko Yabushita ◽  
Miji Kim ◽  
Satoshi Seino ◽  
Miyuki Nemoto ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Lower Extremity ◽  
Sedentary Behaviour ◽  
Cross Sectional ◽  
Cross Sectional Analysis ◽  
Lower Extremity Performance ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Sectional Analysis

scholarly journals Relative Vigorous-Intensity Physical Activity Predicts Brain Microstructural Changes in Older Adults

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 445-445
Author(s):  
Jennifer Schrack ◽  
Bennett Landman ◽  
Amal Wanigatunga ◽  
Susan Resnick ◽  
Luigi Ferrucci ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Heart Rate ◽  
Mean Diffusivity ◽  
Parahippocampal Gyrus ◽  
Heart Rate Reserve ◽  
Cross Sectional ◽  
Microstructural Changes ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

Abstract Physical activity especially at moderate-to-vigorous intensity may preserve brain structure in old age. However, current findings are cross-sectional and rely on absolute intensity. This study aimed to examine whether relative or absolute vigorous-intensity physical activity (VPA) predicts brain microstructural changes. We analyzed 260 initially cognitively normal and well-functioning participants(age=70.5yrs) who had VPA data via ActiHeart and longitudinal brain microstructure by DTI(follow-up=3.7yrs). Associations of VPA with microstructural changes were examined using linear mixed-effects models, adjusted for demographics. Each SD higher relative VPA defined by heart rate reserve (i.e. 21 min/day) was significantly associated with less decline in memory-related microstructural integrity, including mean diffusivity of entorhinal cortex and parahippocampal gyrus and fractional anisotropy of uncinate fasciculus and cingulum-hippocampal part, and not executive/motor-related microstructure. Absolute VPA was not associated with microstructural markers. Among well-functioning older adults, participating in VPA defined by heart rate reserve may predict less brain microstructural decline in memory-related areas.

scholarly journals Self-Reported Disability: Association With Lower Extremity Performance and Other Determinants in Older Adults Attending Primary Care

2015 ◽  
Vol 95 (12) ◽  
pp. 1628-1637 ◽  
Author(s):  
Anabela G. Silva ◽  
Alexandra Queirós ◽  
Pedro Sa-Couto ◽  
Nelson P. Rocha
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Primary Care ◽  
Depressive Symptoms ◽  
Lower Extremity ◽  
Self Report ◽  
World Health ◽  
Cross Sectional ◽  
Whodas 2.0 ◽  
Lower Extremity Performance

Background Measurement of function usually involves the use of both performance-based and self-report instruments. However, the relationship between both types of measures is not yet completely understood, in particular for older adults attending primary care. Objective The main objective of the study was to investigate the association between the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) and the Short Physical Performance Battery (SPPB) for older adults at primary care. A secondary objective was to determine the influence of sociodemographic and health-related variables on this relationship. Design This was a cross-sectional study. Methods A total of 504 participants aged 60 years and older from 18 different primary care centers underwent a one-session assessment including: sociodemographic variables, comorbidities, performance, self-reported disability, pain, depressive symptoms, and physical activity. Performance was assessed using the SPPB, and self-reported disability was assessed using the WHODAS 2.0. Results The correlation between WHODAS 2.0 and SPPB scores was strong (r=.65). Regression analysis showed that the SPPB total score explained 41.7% of the variance in WHODAS 2.0 scores (adjusted R2=41.6%). A second model including the SPPB subtests (balance, gait, and sit-to-stand), depressive symptoms, number of pain sites, pain intensity, and level of physical activity explained 61.7% of the variance in WHODAS 2.0 scores (adjusted R2=60.4%). No model improvement was found when considering the 6 WHODAS 2.0 individual domains. Limitations The cross-sectional nature of the study does not allow inferences on causal relationships. Conclusions This study's findings confirm that self-report and performance-based measures relate to different aspects of functioning. Further study is needed to determine if primary care interventions targeting lower extremity performance and depressive symptoms improve self-reported disability.

scholarly journals Cross-sectional associations of sedentary behaviour and physical activity on depression in Japanese older adults: an isotemporal substitution approach

BMJ Open ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. e022282 ◽  
Author(s):  
Akitomo Yasunaga ◽  
Ai Shibata ◽  
Kaori Ishii ◽  
Mohammad Javad Koohsari ◽  
Koichiro Oka
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Sedentary Behaviour ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Japanese Version ◽  
Cross Sectional ◽  
Negatively Associated ◽  
Japanese Older Adults ◽  
Sectional Analysis

ObjectivesReducing sedentary behaviour (SB) and increasing physical activity (PA) have been shown to be associated with decreased depression. However, there are yet few studies examining the potential benefits on older adults’ depression, when SB is replaced with PA. This study aimed to examine the associations of objectively assessed SB, light-intensity PA (LPA) and moderate-to-vigorous PA (MVPA) with depression among a sample of Japanese older adults, and to explore impacts of substituting SB with PA on older adults’ depression.DesignCross-sectional analysis.SettingGeneral community.ParticipantsA total of 276 older adults aged 65–85 years living in Japan.Main outcome measuresThree behaviours including the average daily time spent in SB (≤1.5 METs); LPA (>1.5 to <3.0 METs) and MVPA (≥3.0 METs) per day were calculated by accelerometers. Depression was assessed using the Japanese version of the 15-item Geriatric Depression Scale (GDS-15).ResultsLess SB (β=0.129, 95% CI 0.015 to 0.243) and more LPA (β=−0.138, 95% CI −0.265 to −0.011) were found to be significantly and negatively associated with the GDS-15 score in the single-activity model. The isotemporal substitution model found that replacing only 30 min per day of SB with the same amount of LPA to be significantly and negatively associated with the GDS-15 score (β=−0.131, 95% CI −0.260 to −0.002).ConclusionsThese findings indicated that substituting even small amounts of SB with LPA may contribute to less depression in older adults. Potential favourable effects can be observed for replacing only 30 min per day of SB with LPA.

scholarly journals How the local built environment affects physical activity behaviour in older adults in the UK: a cross-sectional analysis linked to two national cohorts

The Lancet ◽  
2015 ◽  
Vol 386 ◽  
pp. S5 ◽  
Author(s):  
Sophie Hawkesworth ◽  
Richard Silverwood ◽  
Triantafyllos Pliakas ◽  
Kiran Nanchahal ◽  
Barbara Jefferis ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Built Environment ◽  
Physical Activity Behaviour ◽  
Cross Sectional ◽  
Cross Sectional Analysis ◽  
The Uk ◽  
Sectional Analysis ◽  
Activity Behaviour
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