scholarly journals Reduced Muscle Oxidative Capacity During and After Exercise in Older Adults With Obesity

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 685-686
Author(s):  
Fei Zhao ◽  
Machiko Tomita ◽  
Anirban Dutta
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Oxygen Delivery ◽  
Oxygen Demand ◽  
Oxidative Capacity ◽  
Community Dwelling ◽  
Activity Level ◽  
Obese Group ◽  
Aerobic Performance ◽  
Moderate Intensity

Abstract Objective Obesity and physical activity are two major factors affecting aerobic performance in older adults. The underlying mechanisms of the causes are still unknown. Oxidative capacity, muscles’ maximal capacity to utilize oxygen, is a part of aerobic performance. Muscle oxygen level (SmO2), a measure of oxidative capacity, reflects the balance between oxygen delivery and oxygen demand. When oxygen delivery surpasses oxygen demand, SmO2 increases, which indicates higher oxidative capacity. This study aimed to identify the influence of obesity and physical activity level on SmO2 changes during and after short exercise. Methods This is a cross-sectional study. SmO2 changes during and after a bilateral heel-raise (BHR) test were measured in 60 community-dwelling older adults (≥ 60 years old) in four groups: inactive obese, active obese, inactive non-obese, and active non-obese. Inactive is defined as performing less than 150 minutes/week moderate-intensity activity. Results The inactive obese group took a longer time for SmO2 drop during the BHR test, had a lower SmO2 level at the end, and recovered slower after the test than all other groups. Especially, compared with the active non-obese group, this group exhibited significantly poorer SmO2 recovery one minute after the test, 5.3% less (p=.036). The active obese group’s oxidative capacity was similar to the inactive non-obese group, although lower than the active non-obese group. Discussion To prevent physical decline in older adults with obesity, regular exercise has been recommended. This study substantiated this from a hemodynamics viewpoint. Older adults with obesity need 150+ minutes/week moderate-intensity exercise.

scholarly journals Physical Activity Level Following Resistance Training in Community-Dwelling Older Adults Receiving Home Care: Results from a Cluster-Randomized Controlled Trial

2021 ◽  
Vol 18 (13) ◽  
pp. 6682
Author(s):  
Hilde Bremseth Bårdstu ◽  
Vidar Andersen ◽  
Marius Steiro Fimland ◽  
Lene Aasdahl ◽  
Hilde Lohne-Seiler ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Resistance Training ◽  
Home Care ◽  
Community Dwelling ◽  
Activity Level ◽  
Group Differences ◽  
Control Group ◽  
Cluster Randomized ◽  
Community Dwelling Older Adults

Older adults’ physical activity (PA) is low. We examined whether eight months of resistance training increased PA level in community-dwelling older adults receiving home care. A two-armed cluster-randomized trial using parallel groups was conducted. The included participants were >70 years and received home care. The resistance training group performed resistance training using body weight, elastic bands, and water canes twice per week for eight months. The control group was informed about the national PA guidelines and received motivational talks. The ActiGraph GT3X+ accelerometer was used to estimate PA. Outcomes included total PA (counts per minute), sedentary behavior (min/day), light PA (min/day), moderate-to-vigorous PA (min/day), and steps (mean/day). Between-group differences were analyzed using multilevel linear mixed models. Twelve clusters were randomized to either resistance training (7 clusters, 60 participants) or the control group (5 clusters, 44 participants). A total of 101 participants (median age 86.0 (interquartile range 80–90) years) had valid accelerometer data and were included in the analysis. There were no statistically significant between-group differences for any of the PA outcomes after four or eight months. This study offers no evidence of increased PA level following resistance training in older adults with home care.

scholarly journals Changes in Objectively Measured Lifestyle Factors During the COVID-19 Pandemic in Community-Dwelling Older Adults

2021 ◽  
Author(s):  
Takuya Ataka ◽  
Noriyuki Kimura ◽  
Atsuko Eguchi ◽  
Etsuro Matsubara
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Wearable Sensors ◽  
Lifestyle Factors ◽  
Community Dwelling ◽  
Activity Level ◽  
Objectively Measured ◽  
Community Dwelling Older Adults

Abstract Background: In this manuscript, we aimed at investigating whether objectively measured lifestyle factors, including walking steps, sedentary time, amount of unforced physical activity, level of slight and energetic physical activity, conversation time, and sleep parameters altered before and during the COVID-19 pandemic among community-dwelling older adults.Methods: Data were obtained from a prospective cohort study conducted from 2015 to 2019 and a subsequent dementia prevention study undertaken in September 2020. Community-dwelling adults aged ≥65 years wore wearable sensors before and during the pandemic.Results: A total of 56 adults were enrolled in this study. The mean age was 74.2±3.9 years, and 58.9% (n=33) of the participants were female. The moderate and vigorous physical activity time significantly decreased and sedentary time significantly increased during the pandemic. Conclusions: This is the first study to demonstrate differences in objectively assessed lifestyle factors before and during the COVID-19 pandemic among community-dwelling older adults. The findings show that the pandemic has adversely affected physical activity among older adults living on their own in Japan.

scholarly journals Relationship between Measured Aerobic Capacity and Total Energy Expenditure Obtained by Doubly Labeled Water in Community-Dwelling Healthy Adults Aged 81-94y: A Preliminary Study

2021 ◽  
Author(s):  
Jun Yasukata ◽  
Yosuke Yamada ◽  
Hiroyuki Sagayama ◽  
Yasuki Higaki ◽  
Hiroaki Tanaka
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Energy Expenditure ◽  
Total Energy ◽  
Aerobic Capacity ◽  
Energy Requirement ◽  
Total Energy Expenditure ◽  
Community Dwelling ◽  
Activity Level ◽  
Doubly Labeled Water

Adequate energy intake is critical for the healthy longevity of older adults, and the estimated energy requirement is determined by total energy expenditure (TEE). We aimed to identify the relationship between measured aerobic capacity and TEE, activity energy expenditure (AEE) or physical activity level (PAL) with the doubly labeled water (DLW) methods in the advanced older adults. A total of 12 physically independent older adults (10 males and 2 females) aged between 81 to 94 years participated in this study. Aerobic capacity was evaluated according to the lactate threshold (LT). TEE under free-living conditions was assessed using the DLW method, and self-reported physical activity was obtained through the Japanese version of the International Physical Activity Questionnaire (IPAQ). LT was significantly positively correlated with TEE, AEE, and PAL after adjustment for age and sex (ρ= 0.77 (P<0.01), 0.86 (p<0.01), and 0.86 (p<0.01), respectively). We found the LT as an aerobic capacity is positively and independently correlated with TEE, AEE or PAL. The present results suggest that maintaining aerobic capacity is an important factor for preventing frailty, although further research is needed to multisite studies and many samples.

scholarly journals The Gender-Specific Relationship between Nutritional Status, Physical Activity and Functional Mobility in Irish Community-Dwelling Older Adults

2021 ◽  
Vol 18 (16) ◽  
pp. 8427
Author(s):  
Maeve Lorraine O’Connell ◽  
Tara Coppinger ◽  
Seán Lacey ◽  
Tijana Arsenic ◽  
Aoife Louise McCarthy
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Nutritional Status ◽  
Short Form ◽  
Community Dwelling ◽  
Functional Mobility ◽  
Activity Level ◽  
Specific Relationship ◽  
Community Dwelling Older Adults ◽  
Gender Specific

Research suggests that both nutrition and physical activity can protect mobility in older adults, but it is yet to be determined whether these relationships are affected by gender. Thus, we investigated the gender-specific relationship between nutritional status, physical activity level and functional mobility in Irish older adults. A cross-sectional study was undertaken in 176 community-dwelling older adults (73.6 ± 6.61 years) living in Cork, Ireland. Nutritional status was measured using the Mini Nutritional Assessment-Short Form (MNA-SF) and physical activity was assessed via the Physical Activity Scale for the Elderly (PASE). Functional mobility was measured using the Timed Up and Go (TUG) test. The gender-stratified relationship between variables was assessed using Pearson’s correlations and multiple linear regression. Partial correlations (p < 0.05) were observed for TUG with PASE score in both genders, and with MNA-SF score in females, only. Multiple regression showed that physical activity was a predictor of TUG in both genders (β = 0.257 for males, β = 0.209 for females, p < 0.05), while nutritional status was a predictor of TUG in females, only (β = −0.168, p = 0.030). Our results suggest that physical activity is associated with functional mobility in both genders, while the relationship between nutritional status and mobility may be specific to older females. These findings may be of interest for the design of functional preservation strategies.

The Potential Win-win Strategy for Healthy Aging and Environmental Protection: Environmental Volunteering

2021 ◽  
pp. 089011712110555
Author(s):  
Chung-Shan Hung ◽  
Ching-Hui Loh ◽  
Jyh-Gang Hsieh ◽  
Jia-Ching Chen ◽  
Yan-Wei Lin ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Handgrip Strength ◽  
Vigorous Physical Activity ◽  
Community Dwelling ◽  
Activity Level ◽  
Analysis Of Covariance ◽  
Muscle Testing ◽  
Environmental Volunteering ◽  
Intensive Group

Purpose To explore the physical activity level of community environmental volunteering (CEV) participants and the differences in physical functions and daily activity patterns between the older adults who engaged in intensive CEV (≥15 hours/week) and non-intensive CEV (<15 hours/week) groups. Design Cross-sectional study. Setting Three recycling stations in Taiwan. Sample In total, 113 community-dwelling older adults who regularly participated in CEV. The response rate was 53%. Measures The ActiGraph wGT3x-BT accelerometer for the percentage of sedentary, light, and moderate to vigorous physical activity (MVPA) of CEV time and awaken time; the Jamar hand dynamometer for grip strength; and the MicroFET3 muscle testing dynamometer for knee extension strength. Analysis Analysis of covariance with the baseline characteristics as covariates. Results Overall, MVPA, light, and sedentary activities accounted for 53.73%, 41.10%, and 5.23% of CEV time, respectively. The intensive group (n = 61) displayed greater dominant handgrip strength ( P = .004) and higher MVPA percentage in daily life ( P = .044) than the non-intensive group (n = 52). Conclusion CEV provides sufficient opportunities for older adults to perform physical activity. Intensive CEV is related to greater handgrip strength but not lower limb strength. Further study is needed to establish the causal relationship between CEV and health variates.

scholarly journals Physical Inactivity and Related Barriers: A Study in a Community Dwelling of Older Brazilians

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Sebastião Gobbi ◽  
Emerson Sebastião ◽  
Camila Bosquiero Papini ◽  
Priscila Missaki Nakamura ◽  
Américo Valdanha Netto ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Physical Inactivity ◽  
Healthy Lifestyle ◽  
Age Groups ◽  
Population Based ◽  
Community Dwelling ◽  
Activity Level ◽  
Cross Sectional ◽  
Significant Difference

This study sought to investigate the prevalence of physical inactivity and related barriers in older Brazilian adults. A cross-sectional, population-based study was conducted, and a stratified random sampling procedure was used. A total of 359 older adults were interviewed. The long version of the International Physical Activity Questionnaire (IPAQ) and the Questionnaire of Barriers to Physical Activity Practice were used to assess physical activity level and barriers, respectively. No statistically significant difference was observed on the prevalence of physical inactivity in either gender or age groups. Regarding barriers, the proportion of 9 out of 22 barriers was statistically significant between men and women. Self-reported physical inactivity/activity in older Brazilian adults continues to be a concern. Uncommonly, older males reported a higher prevalence of physical inactivity compared to their counterparts. Additionally, physical inactivity prevalence continued to increase with the aging process. Yet, personal barriers such as lack of time and poor health were strongly associated with physical inactivity. The results of this study may help health professionals and public policy makers to better address the issues related to a healthy lifestyle among older adults and promote physical activity among Brazilian older adults and in other countries with similar characteristics.

scholarly journals 173 A Qualitative Study Exploring Facilitators and Barriers to Engagement in Physical Activity Among Older Irish and French Adults

2019 ◽  
Vol 48 (Supplement_3) ◽  
pp. iii17-iii65
Author(s):  
Fintan Sheerin ◽  
Aileen Lynch ◽  
Sean Kilroy ◽  
Monique Epstein ◽  
Ariane Girault ◽  
...  
Keyword(s):  
Physical Activity ◽  
Social Support ◽  
Older Adults ◽  
Environmental Factors ◽  
Qualitative Study ◽  
Psychological Health ◽  
Health Benefits ◽  
Community Dwelling ◽  
Moderate Intensity ◽  
Facilitators And Barriers

Abstract Background The physical and mental health benefits of physical activity (PA) in older adults have been well-documented. However, a large proportion of older adults worldwide fail to meet the internationally recommended guidelines of 150 minutes of moderate intensity PA per week. Factors associated with engagement in PA among older adults are complex, interacting and wide-reaching, involving individual, social, physical and environmental factors. Thus, to develop preventive lifestyle interventions it is necessary to carefully explore these factors. Methods This qualitative study (as part of a larger funded study to develop a PA-intervention) sought to identify and explore facilitators and barriers to PA in community dwelling older adults (≥65). Focus groups were conducted in Ireland (one) and France (two) and findings were analysed using thematic analysis. Results The main facilitators that emerged from focus group participants (n=33) were: availability of resources; tailored classes facilitated by staff knowledgeable of older adults’ needs; activities that facilitated social support and connectedness; perceived physical and psychological health benefits. Similar factors also influence continued participation in PA, as well as feelings of wellbeing and enjoyment, family support and motivation, although it was noted that it did sometimes require considerable effort. Barriers to engagement in PA included: lack of social support and resources; environmental factors, whether built, social, location or weather-related. Barriers of a more personal nature also emerged and included fear, loss of confidence due to functional changes, and lack of opportunity. Conclusion PA guidelines are but the first step. There is a need to develop implementation strategies at all levels: personal; interpersonal; organisational; community; and public policy, specifically for older adults, that will incorporate the above facilitators and address the above barriers to optimize engagement and maintenance in PA among older adults.

Use of Clinical and Impairment-Based Tests to Predict Falls by Community-Dwelling Older Adults

2003 ◽  
Vol 83 (4) ◽  
pp. 328-339 ◽  
Author(s):  
Lois K Boulgarides ◽  
Susan M McGinty ◽  
Jayne A Willett ◽  
Carole W Barnes
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
At Risk ◽  
Physical Activity Level ◽  
Community Dwelling ◽  
Activity Level ◽  
Eyes Closed ◽  
Balance Tests ◽  
Speed Accuracy ◽  
Community Dwelling Older Adults

Abstract Background and Purpose. Few tests have been found to be strongly predictive of falls in community-dwelling older adults. The purpose of this study was to determine whether data from 5 balance tests—combined with data regarding fall history, number of medications, dizziness, visual problems, use of an assistive device, physical activity level, sex, and age—could predict falls in community-dwelling older adults who were independent. Subjects. Ninety-nine community-dwelling older adults aged 65 to 90 years (X̄= 74.02, SD=5.64) were tested. Methods. Subjects were tracked for falls over a 1-year period following testing. Impairment-based tests, which are tests that attempt to specifically identify which sensory systems are impaired or how motor control is impaired (eg, speed, accuracy of movement), were the Modified Clinical Tests of Sensory Interaction for Balance (Modified CTSIB) and the 100% Limits of Stability Test, both of which were done on the Balance Master 6.1. Performance-based tests, which are functional tests that identify functional limitations without necessarily identifying their causes, were the Berg Balance Scale, the Timed “Up & Go” Test, and the Dynamic Gait Index. Demographic and health data included age, sex, number of medications, physical activity level, presence of dizziness, vision problems, and history of falls over the previous year. Logistic regression was used to determine which combinations of data from balance tests, demographics, and health factors were predictive of falls. Results. Two models—(1) the “standing on a firm surface with eyes closed” (FEC) condition of the Modified CTSIB and (2) the FEC combined with age and sex—were predictive of falls, but predicted only 1 and 2 subjects who were at risk for falling, respectively, out of 20 people who were at risk for falling. Discussion and Conclusion. Five balance tests combined with health and demographic factors did not predict falls in a sample of community-dwelling older adults who were active and independent.

scholarly journals Accelerometry-Based Assessment of Physical Activity in Older Adults During COVID-19 Pandemic

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 1030-1030
Author(s):  
Renoa Choudhury ◽  
Ladda Thiamwong ◽  
Oscar Garcia ◽  
Rui Xie ◽  
Jeffrey Stout ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Online Survey ◽  
Healthy Aging ◽  
Well Being ◽  
Cross Sectional Study ◽  
Community Dwelling ◽  
Activity Level ◽  
Cross Sectional ◽  
The Social

Abstract COVID-19 pandemic has caused a severely detrimental effect on the physical, psychological, and functional well-being of older adults by forcing them to limit their social activities. This study investigates the amount and intensity of daily physical activity (PA) in older adults, living under the social distancing guidelines during COVID-19 pandemic. In this cross-sectional study, 124 community-dwelling older adults (Age:60–96 years, mean:75±7.14) were recruited via word-of–mouth and key person approach between March 2021-August 2021. Participants completed an online survey on COVID-19 questionnaires and wore an ActiGraph GT9X accelerometer on their non-dominant wrist for consecutive 7 days in free-living conditions. Euclidean Norm Minus One cut-points were used to estimate the total time spent in sedentary behavior (SB), light PA (LPA) and moderate-to-vigorous PA (MVPA). Results showed that, 7% had COVID-positive, 55% perceived moderate severity of COVID in their area, 31% reported fear of COVID, and 14.5% were afraid of losing their life to COVID. On average, participants obtained 12.43±2.1 hours/day of SB, 3.47±1.05 hours/day of LPA and 42.71±29.71 minutes/day of MVPA. MVPA minutes/day was significantly higher (P = 0.006) in participants aged 60-85 years than those aged 85+ years (45.38 minutes/day vs 14.25 minutes/day). When age-adjusted data was compared to pre-COVID-19 studies, we found COVID-19 pandemic had negatively impacted the physical activity level in older adults (29.33% decrease in MVPA and 39.2% increase in SB). These findings can be useful in developing guidelines and/or interventions to promote physical activity and healthy aging among older adults, particularly those in social isolation.

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