scholarly journals TRANSITION TO A MORE EVEN DISTRIBUTION OF PROTEIN INTAKE IS ASSOCIATED WITH ENHANCED FAT LOSS IN OBESE OLDER ADULTS

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S841-S841
Author(s):  
Samaneh Farsijani ◽  
Jane A Cauley ◽  
Adam J Santanasto ◽  
Nancy W Glynn ◽  
Robert M Boudreau ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Weight Loss ◽  
Body Composition ◽  
Successful Aging ◽  
Protein Intake ◽  
Subcutaneous Fat ◽  
Community Dwelling ◽  
Protein Distribution ◽  
Fat Loss

Abstract Background: Optimization of intentional weight loss in obese older adults, through preferential fat mass reduction, is challenging, as the concomitant lean mass loss may exacerbate sarcopenia. Here, we assessed whether changes in within-day protein intake distribution are related to improvements in body composition in overweight/obese older adults during a hypocaloric and exercise intervention. Methods: Thirty-six community-dwelling, overweight-to-obese (BMI 28.0-39.9 kg/m2), sedentary older adults (aged 70.6±6.1 years) were randomized into either physical activity plus successful aging health education (PA+SA; n=15) or physical activity plus weight loss (PA+WL; n=21) programs. Body composition (by CT and DXA) and dietary intake (by three-day food records) were determined at baseline, 6-month, and 12-month follow-up visits. Within-day protein distribution was calculated as the coefficient of variation of protein ingested at breakfast [5:00–10:59], lunch [11:00–16:59] and dinner [17:00–1:00]. Secondary analysis was performed to determine associations between changes in protein intake distribution and body composition. Results: In both groups, baseline protein intake was skewed towards dinner. The pattern of protein intake changed towards a more even within-day distribution in PA+WL, but it remained unchanged in PA+SA. Transition towards a more even pattern of protein intake was independently associated with a greater decline in BMI (P<0.05) and abdominal subcutaneous fat (P<0.05) in PA+WL. However, changes in protein CV were not associated with weight loss in PA+SA. Conclusion: Our results show that mealtime distribution of protein intake throughout the day was associated with improved weight and fat loss under hypocaloric diet combined with physical activity.

scholarly journals Effect of an 18-month physical activity and weight loss intervention on body composition in overweight and obese older adults

Obesity ◽  
2013 ◽  
Vol 22 (2) ◽  
pp. 325-331 ◽  
Author(s):  
Kristen M. Beavers ◽  
Daniel P. Beavers ◽  
Beverly A. Nesbit ◽  
Walter T. Ambrosius ◽  
Anthony P. Marsh ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Weight Loss ◽  
Body Composition ◽  
Weight Loss Intervention

scholarly journals Effects of Reallocating Time Spent in Different Physical Activity Intensities on Sarcopenia Risk in Older Adults: An Isotemporal Substitution Analysis

Biology ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 111
Author(s):  
Jort Veen ◽  
Diego Montiel-Rojas ◽  
Fawzi Kadi ◽  
Andreas Nilsson
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Protein Intake ◽  
Handgrip Strength ◽  
Community Dwelling ◽  
Self Report ◽  
Linear Regression Models ◽  
Age Related ◽  
Muscle Health ◽  
The Impact

The role of daily time spent sedentary and in different intensities of physical activity (PA) for the maintenance of muscle health currently remains unclear. Therefore, we investigated the impact of reallocating time spent in different PA intensities on sarcopenia risk in older adults, while considering PA type (muscle strengthening activities, MSA) and protein intake. In a sample of 235 community-dwelling older adults (65–70 years), a sarcopenia risk score (SRS) was created based on muscle mass assessed by bioimpedance, together with handgrip strength and performance on the five times sit-to-stand (5-STS) test assessed by standardized procedures. Time spent in light-intensity PA (LPA), moderate-to-vigorous PA (MVPA), and being sedentary was assessed by accelerometry, and PA type (MSA) by self-report. Linear regression models based on isotemporal substitution were employed. Reallocating sedentary time to at least LPA was significantly (p < 0.05) related to a lower SRS, which remained evident after adjustment by PA type (MSA) and protein intake. Similarly, reallocating time in LPA by MVPA was related to a significantly (p < 0.05) lower SRS. Our results emphasize the importance of displacing sedentary behaviours for more active pursuits, where PA of even light intensities may alleviate age-related deteriorations of muscle health in older adults.

scholarly journals Body Composition in Community-Dwelling Older Adults Before and After SARS-CoV-2 Infection: A Longitudinal Prospective Study in a Rural Village Struck by the Pandemic

2021 ◽  
Vol 12 ◽  
pp. 215013272110477
Author(s):  
Oscar H. Del Brutto ◽  
Robertino M. Mera ◽  
Denisse A. Rumbea ◽  
Pedro Pérez ◽  
Bettsy Y. Recalde ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Body Composition ◽  
Regression Models ◽  
Community Dwelling ◽  
The Body ◽  
Study Results ◽  
The Impact ◽  
Community Dwelling Older Adults

Background: Information on the body composition of inhabitants of remote communities during the SARS-CoV-2 pandemic is limited. Using a longitudinal population-based study design, we assessed the association between SARS-CoV-2 infection and changes in body composition. Methods: Community-dwelling older adults living in a rural Ecuadorian village received body composition determinations before and 1 year after the pandemic as well as serological tests for detection of SARS-CoV-2 antibodies. The independent association between SARS-CoV-2 infection and abnormalities in body composition at follow-up was assessed by fitting linear mixed models for longitudinal data. Results: Of 327 enrolled individuals, 277 (85%) received baseline and follow-up body composition determinations, and 175 (63%) of them became SARS-CoV-2 seropositive. Overall, diet and physical activity deteriorated during the follow-up. Multivariate random-effects generalized least squares regression models that included the impact of time and seropositivity on follow-up body composition, showed that neither variable contributed to a worsening in body composition. Multivariate logistic regression models disclosed that the serological status at follow-up cannot be predicted by differences in body composition and other baseline covariates. Conclusions: Study results suggest no increased susceptibility to SARS-CoV-2 infection among older adults with abnormal body composition and no significant changes as a result of worse physical activity and dietary habits or seropositivity during the length of the study. Together with a previous study in the same population that showed decrease in hand-grip strength after SARS-CoV-2, results confirm that dynapenia (and not sarcopenia) is associated with SARS-CoV-2 infection in older adults.

scholarly journals Effectiveness of a resistance training program on physical function, muscle strength, and body composition in community-dwelling older adults receiving home care: a cluster-randomized controlled trial

2020 ◽  
Vol 17 (1) ◽  
Author(s):  
Hilde Bremseth Bårdstu ◽  
Vidar Andersen ◽  
Marius Steiro Fimland ◽  
Lene Aasdahl ◽  
Truls Raastad ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Body Composition ◽  
Resistance Training ◽  
Home Care ◽  
Physical Function ◽  
Low Cost ◽  
Community Dwelling ◽  
Cluster Randomized ◽  
Community Dwelling Older Adults

Abstract Background Aging is associated with reduced muscle mass and strength leading to impaired physical function. Resistance training programs incorporated into older adults’ real-life settings may have the potential to counteract these changes. We evaluated the effectiveness of 8 months resistance training using easily available, low cost equipment compared to physical activity counselling on physical function, muscle strength, and body composition in community-dwelling older adults receiving home care. Methods This open label, two-armed, parallel group, cluster randomized trial recruited older adults above 70 years (median age 86.0 (Interquartile range 80–90) years) receiving home care. Participants were randomized at cluster level to the resistance training group (RTG) or the control group (CG). The RTG trained twice a week while the CG were informed about the national recommendations for physical activity and received a motivational talk every 6th week. Outcomes were assessed at participant level at baseline, after four, and 8 months and included tests of physical function (chair rise, 8 ft-up-and-go, preferred- and maximal gait speed, and stair climb), maximal strength, rate of force development, and body composition. Results Twelve clusters were allocated to RTG (7 clusters, 60 participants) or CG (5 clusters, 44 participants). The number of participants analyzed was 56–64 (6–7 clusters) in RTG and 20–42 (5 clusters) in CG. After 8 months, multilevel linear mixed models showed that RTG improved in all tests of physical function and maximal leg strength (9–24%, p = 0.01–0.03) compared to CG. No effects were seen for rate of force development or body composition. Conclusion This study show that resistance training using easily available, low cost equipment is more effective than physical activity counselling for improving physical function and maximal strength in community-dwelling older adults receiving home care. Trial registration ISRCTN1067873

scholarly journals Trajectories of Body Composition during Advanced Aging in Consideration of Diet and Physical Activity: A 20-Year Longitudinal Study

Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3626
Author(s):  
Alexandra Jungert ◽  
Gerrit Eichner ◽  
Monika Neuhäuser-Berthold
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Body Mass ◽  
Protein Intake ◽  
Activity Index ◽  
Bioelectrical Impedance ◽  
Community Dwelling ◽  
Fat Free Mass ◽  
Anthropometric Data ◽  
Age Dependent

This prospective study investigates age-dependent changes in anthropometric data and body composition over a period of two decades in consideration of physical activity and diet in community-dwelling subjects ≥60 years. Overall, 401 subjects with median follow-up time of 12 years were examined. Fat-free mass (FFM) and fat mass (FM) were analyzed using bioelectrical impedance analysis. Physical activity was assessed via a self-administered questionnaire. Dietary intake was examined by 3-day dietary records. Linear mixed-effects models were used to analyze the influence of age, sex, physical activity and energy/protein intake on anthropometric data and body composition by considering year of entry, use of diuretics and diagnosis of selected diseases. At baseline, median values for daily energy and protein intakes were 8.5 megajoule and 81 g and physical activity index was 1.7. After adjusting for covariates, advancing age was associated with parabolic changes indicating overall changes from age 60 to 90 years in women and men in body mass: −4.7 kg, −5.0 kg; body mass index: +0.04 kg/m2, −0.33 kg/m2; absolute FFM: −2.8 kg, −3.5 kg; absolute FM: −1.8 kg, −1.2 kg and waist circumference: +16 cm, +12 cm, respectively. No age-dependent changes were found for upper arm circumference and relative (%) FFM. Dietary and lifestyle factors were not associated with changes in anthropometric or body composition parameters. In summary, the results indicate non-linear age-dependent changes in anthropometric data and body composition, which are largely unaffected by the degree of habitual physical activity and dietary protein intake in well-nourished community-dwelling subjects.

scholarly journals Vitamin D and Physical Activity Status: Associations With Five-Year Changes in Body Composition and Muscle Function in Community-Dwelling Older Adults

2015 ◽  
Vol 100 (2) ◽  
pp. 670-678 ◽  
Author(s):  
David Scott ◽  
Peter R. Ebeling ◽  
Kerrie M. Sanders ◽  
Dawn Aitken ◽  
Tania Winzenberg ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Vitamin D ◽  
Body Composition ◽  
Body Fat ◽  
Muscle Function ◽  
Community Dwelling ◽  
Accelerometer Data ◽  
High Vitamin ◽  
Community Dwelling Older Adults

Abstract Context: High vitamin D and physical activity (PA) levels are independently associated with improved body composition and muscle function in older adults. Objective: The objective of this study was to investigate the interaction of 25-hydroxyvitamin D (25OHD) and PA status in maintenance of body composition and muscle function in older adults. Design and Setting: This was a 5-year prospective population-based study of Australian community-dwelling older adults. Participants: Participants in the study included 615 community-dwelling volunteers aged 50 years old or older [61.4 ± 6.9 (mean ± SD) y; 48% female] randomly selected from electoral rolls and categorized according to baseline serum 25OHD (≥ or &lt;50 nmol/L) and PA (≥ or &lt;10 000 pedometer determined steps/d) levels as follows: high 25OHD and high PA (VitD+PA+); high 25OHD and low PA (VitD+PA−); low 25OHD and high PA (VitD-PA+); and low 25OHD and low PA (VitD-PA−). A subset of 518 participants completed accelerometer assessments during follow-up. Main Outcome Measures: Changes in dual-energy X-ray absorptiometry-assessed body composition and lower-limb muscle function were measured. Results: VitD+PA+ had significantly smaller increases in body fat over 5 years compared with other groups (all P &lt; .05). Higher baseline pedometer-determined PA resulted in declines in total body fat (β = −.23 kg per 100 steps/d, P = .001) over 5 years for participants with high 25OHD but not those with low 25OHD (P &gt; .05). Among participants with accelerometer data, these associations were generally mediated by higher levels of moderate/vigorous PA. Conclusions: High vitamin D status appears to enhance PA-related declines in body fat during aging, but the mechanism may be greater amounts of outdoor moderate/vigorous PA rather than a direct effect of 25OHD.

scholarly journals Prevalence of Frailty Indicators in Community-dwelling Older Adults From Northeastern Brazil, 2009-2015

2021 ◽  
Author(s):  
Adrianna Ribeiro Lacerda ◽  
Maria do Carmo Eulálio ◽  
Edivan Gonçalves Silva Júnior ◽  
Ricardo Alexandre Arcêncio ◽  
Ricardo Alves Olinda ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Weight Loss ◽  
Explanatory Models ◽  
Community Dwelling ◽  
Self Report ◽  
Northeastern Brazil ◽  
Frailty Phenotype ◽  
Frail Older Adults ◽  
Community Dwelling Older Adults

Abstract BACKGROUND: Frailty is a clinical syndrome, and its development is multifactorial and dynamic. The clinical indicators (physical measures and self-report) that characterize the syndrome tend to vary across studies. To determine the contributions of the indicators in the determination of frailty it is important to obtain data about the variations that occur among the levels of frailty. The aim of this study was to a) survey the prevalence of the frailty syndrome and of the indicators that compose the frailty phenotype in community-dwelling older adults, and b) to evaluate the contribution of each indicator in the determination frailty.METHODS: Prevalence study carried out with 163 older adults who participated in two assessments; the first one was performed in 2009 and after 70 months the second assessment was conducted. Assessment of physical measurements was performed to constitute the frailty phenotype (gait speed and handgrip strength) alongside self-report (fatigue, unintentional weight loss, and physical activity), as proposed by Fried. We used the McNemar’s test and Pearson’s chi-square to analyze the differences between means and Multinomial Logistic Regression values.RESULTS: There was an increase in the number of pre-frail older adults (from 47.85% to 65.03%) and frail ones (from 7.98% to 9.82%). The frailty indicators increased significantly (+ 8.6% for walking; + 6.8% for fatigue; + 6.8% for grip strength; + 1.2% for physical activity), except for the “weight loss” item (-3%). The indicators with the highest predictors of frailty in 2009 were fatigue (OR = 31.41; 95%CI 11.66-84-65, p<0.001) and weight loss (OR = 28.74; 95%CI 9.20-89.84, p<0.001). In the second assessment, the items that had the highest chance for developing frailty were slow gait (OR = 23.64; 95%CI 5.38-103.83, p<0.001) and muscle weakness (OR = 79.39; 95%CI 8.58-734.24, p<0.001). CONCLUSION: There was an increase in frail and pre-frail older adults during the two assessments and an increase in the indicators that mark the syndrome phenotype. The explanatory models of frailty changed in both assessments. The evolution of frailty signals the necessity for interventions to be carried out with older adults to delay the progress of declining faculties that threaten their health.

scholarly journals Impact of a Higher (Dairy) Protein Weight Loss Intervention on Function and Body Composition in Obese Older Adults with Limited Functional Performance

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 68-68
Author(s):  
Kathryn Porter Starr ◽  
Jamie Rincker ◽  
Stephan van Vliet ◽  
Dipa Patel ◽  
Shelley McDonald ◽  
...  
Keyword(s):  
Older Adults ◽  
Weight Loss ◽  
Body Composition ◽  
Lean Mass ◽  
Protein Intake ◽  
Exercise Intervention ◽  
Functional Performance ◽  
Cumulative Risk ◽  
Development Program ◽  
Age Related

Abstract Objectives The combination of obesity with age-related loss of muscle mass and strength creates a cumulative risk to function and the physical ability of older adults to sustain daily activities. The aim was to determine whether a higher protein intake can improve function and protect lean mass in older adults following a diet and exercise obesity intervention. Methods Obese (BMI ≥30 kg/m2) older (≥60 yrs) participants (female n = 50; male n = 15; 46% black) with functional limitations (Short Physical Performance Battery (SPPB) score = 9.1 ± 1.4 out of 12) were randomized to an RDA-level protein weight loss regimen (0.8 g/kg bw/d; Control; n = 33) or a higher protein arm (1.2 g/kg bw/d, with ≥30 g high quality protein (predominantly dairy) at each meal; Protein; n = 32). Both groups followed a hypo-caloric diet and participated in 2 supervised low-intensity chair exercise sessions per wk and 1 session/wk at home. Measurements at baseline, 3 and 6 months included body weight, SPPB, 6-minute walk time, 8-foot up and go test, and body composition (BODPOD). Results Mean baseline characteristics were BMI 35.0 ± 4.9 kg/m2 and age = 69.5 ± 6.2 yrs. At 6 months, weight loss and body fat reduction were significant (P &lt; 0.001) in both Control (7.0% weight) and Protein (6.6% weight) with no group difference. The slight (&lt;−1 kg) change in lean mass was not different between groups. At 3 and 6 months, SPPB scores significantly increased in both groups (P &lt; 0.01) with no difference between groups. However, at 3 months, the Protein group had significantly greater improvements in distance walked in 6 minutes (Protein = 48.3 ± 71.7 m; Control = 3.4 ± 69.3 m; P = 0.01) and timed 8-foot up and go (Protein = −0.9 ± 1.0 s; Control = −0.3 ± 1.2 s; P = 0.04) compared to control; no difference between groups for either test at 6 months. Conclusions We found that a hypocaloric balanced, higher protein diet (predominantly low-fat dairy) improved distance walked in 6 minutes and 8-foot up and go times at the 3 month time point; this group difference was absent at 6 months, when the improvements in these tests, as well as SPPB were equal between groups. Further study is needed to assess the potential that higher protein intake accelerates function responses to a diet plus exercise intervention for obese older adults. Funding Sources The National Dairy Council and US Department of Veterans Affairs Rehabilitation Research and Development Program.

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