Combined Physical Activity and Sitting Time Association on Older Adults’ Body Mass Index: Cross-Sectional Findings From the Brazilian Longitudinal Study of Aging

Author(s):  
Juleimar S.C. Amorim ◽  
Juliana L. Torres ◽  
Sérgio V. Peixoto

This study examined isolated and combined associations of physical activity (PA) and sitting time (ST) with body mass index (BMI) among older Brazilian adults. We have analyzed baseline data of 8,177 participants aged 50 years and older from the Brazilian Longitudinal Study of Aging. Respondents were categorized into sufficient PA/low ST, sufficient PA/high ST, insufficient PA/low ST, or insufficient PA/high ST using the Short Version of International Physical Activity Questionnaire. Multinomial logistic regression analysis examined the associations of being underweight (BMI, <18 kg/m2), overweight (BMI, 25–29.9 kg/m2), and obese (BMI, ≥30 kg/m2) with PA and ST categories. High ST (≥165 min/day) was associated with overweight (odds ratio, 1.26; 95% confidence interval [1.11, 1.44]) and obesity (odds ratio, 1.43; 95% confidence interval [1.21, 1.70]). However, no association was observed between PA and BMI. Participants in the insufficient and sufficient PA/high ST categories were more likely to be obese after adjusting for sociodemographic and health condition. Our findings call for public health initiatives that consider reducing ST in older adults.

Author(s):  
Eeva Aartolahti ◽  
Johanna Eronen ◽  
Timo Törmäkangas ◽  
Taina Rantanen ◽  
Mirja Hirvensalo ◽  
...  

This study examined equity in physical activity (PA) by investigating whether perceived opportunity for PA was associated with willingness to be more active. Among community residents (75, 80, or 85 years old, n = 962) perceived opportunity for PA (poor and good), willingness to be more active (not at all, a bit, and a lot), and level of PA (low, moderate, and high) were assessed via questionnaires. Multinomial logistic regression showed that physical activity moderated the association between poor opportunity and willingness to increase PA. Among those with moderate PA, poor opportunity for PA increased the odds of willingness to be a lot more active (multinomial odds ratio, mOR 3.90, 95% confidence interval 2.21–6.87) than not wanting to be more active compared to those perceiving good opportunities. Associations were similar at high PA levels (p < 0.001), but were not found at low PA levels. Those with moderate or high PA wish to increase their activity particularly when the perceived opportunities for activity are not optimal. Among those with low PA, perceived opportunities are not associated with a perceived need to increase physical activity. Increasing equity in physical activity in old age requires provision of support and opportunities at every level of physical activity.


Author(s):  
Eka Peng Cox ◽  
Rebecca Cook ◽  
Nicholas O’Dwyer ◽  
Cheyne Donges ◽  
Helen Parker ◽  
...  

Background: There is evidence that physical activity (PA), sitting time, and obesity may impact cognition, but few studies have examined this in young women. Methods: Healthy women (18–35 y), without conditions that impair cognition, were recruited for this cross-sectional study. Participants completed anthropometric and validated computerized cognitive assessments (IntegNeuro™). Performance on 5 cognitive domains (impulsivity, attention, information processing, memory, and executive function) was reported as z scores. Sitting hours and weekly PA calculated from time in low-, moderate-, and high-intensity activity were obtained via the International Physical Activity Questionnaire. Analysis of variance/analysis of covariance, chi-square, and linear regression were used. Results: 299 (25.9 [5.1] y) women (low PA = 19%; moderate PA = 40%; high PA = 41%) participated. High PA women had lower body mass index (high PA = 26.1 [6.5]; moderate PA = 30.0 [8.7]; low PA = 31.0 [11.1] kg/m2; P < .001) and less sitting time (high PA = 6.6 [3.1]; moderate PA = 7.7 [2.8]; low PA = 9.3 [3.6] hr/weekday; P < .0001). Cognitive function was within normal ranges and did not differ between any PA groups (P = .42). Adjusting for body mass index, C-reactive protein, or sitting hours did not alter results. Weak correlations were found between time in high-intensity activity and impulsivity (b = 0.12, r2 = .015; P = .04), and between sitting hours and information processing efficiency (b = −0.18, r2 = .03; P = .002). Valuesare presented as mean (SD). Conclusions: Cognitive function was within the normal range, regardless of PA or sitting time.


2018 ◽  
Vol 15 (11) ◽  
pp. 840-846 ◽  
Author(s):  
Christopher C. Imes ◽  
Yaguang Zheng ◽  
Dara D. Mendez ◽  
Bonny J. Rockette-Wagner ◽  
Meghan K. Mattos ◽  
...  

Background: The obesity epidemic is a global concern. Standard behavioral treatment including increased physical activity, reduced energy intake, and behavioral change counseling is an effective lifestyle intervention for weight loss. Purpose: To identify distinct step count patterns among weight loss intervention participants, examine weight loss differences by trajectory group, and examine baseline factors associated with trajectory group membership. Methods: Both groups received group-based standard behavioral treatment while the experimental group received up to 30 additional, one-on-one self-efficacy enhancement sessions. Data were analyzed using group-based trajectory modeling, analysis of variance, chi-square tests, and multinomial logistic regression. Results: Participants (N = 120) were mostly female (81.8%) and white (73.6%) with a mean (SD) body mass index of 33.2 (3.8) kg/m2. Four step count trajectory groups were identified: active (>10,000 steps/day; 11.7%), somewhat active (7500–10,000 steps/day; 28.3%), low active (5000–7500 steps/day; 27.5%), and sedentary (<5000 steps/day; 32.5%). Percent weight loss at 12 months increased incrementally by trajectory group (5.1% [5.7%], 7.8% [6.9%], 8.0% [7.4%], and 13.63% [7.0%], respectively; P = .001). At baseline, lower body mass index and higher perceived health predicted membership in the better performing trajectory groups. Conclusions: Within a larger group of adults in a weight loss intervention, 4 distinct trajectory groups were identified and group membership was associated with differential weight loss.


2018 ◽  
Vol 25 (15) ◽  
pp. 1646-1652 ◽  
Author(s):  
Lars E Garnvik ◽  
Vegard Malmo ◽  
Imre Janszky ◽  
Ulrik Wisløff ◽  
Jan P Loennechen ◽  
...  

Background Atrial fibrillation is the most common heart rhythm disorder, and high body mass index is a well-established risk factor for atrial fibrillation. The objective of this study was to examine the associations of physical activity and body mass index and risk of atrial fibrillation, and the modifying role of physical activity on the association between body mass index and atrial fibrillation. Design The design was a prospective cohort study. Methods This study followed 43,602 men and women from the HUNT3 study in 2006–2008 until first atrial fibrillation diagnosis or end of follow-up in 2015. Atrial fibrillation diagnoses were collected from hospital registers and validated by medical doctors. Cox proportional hazard regression analysis was performed to assess the association between physical activity, body mass index and atrial fibrillation. Results During a mean follow-up of 8.1 years (352,770 person-years), 1459 cases of atrial fibrillation were detected (4.1 events per 1000 person-years). Increasing levels of physical activity were associated with gradually lower risk of atrial fibrillation ( p trend 0.069). Overweight and obesity were associated with an 18% (hazard ratio 1.18, 95% confidence interval 1.03–1.35) and 59% (hazard ratio 1.59, 95% confidence interval 1.37–1.84) increased risk of atrial fibrillation, respectively. High levels of physical activity attenuated some of the higher atrial fibrillation risk in obese individuals (hazard ratio 1.53, 95% confidence interval 1.03–2.28 in active and 1.96, 95% confidence interval 1.44–2.67 in inactive) compared to normal weight active individuals. Conclusion Overweight and obesity were associated with increased risk of atrial fibrillation. Physical activity offsets some, but not all, atrial fibrillation risk associated with obesity.


2017 ◽  
Vol 13 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Mark M. Mitsnefes ◽  
Aisha Betoko ◽  
Michael F. Schneider ◽  
Isidro B. Salusky ◽  
Myles Selig Wolf ◽  
...  

Background and ObjectivesHigh plasma concentration of fibroblast growth factor 23 (FGF23) is a risk factor for left ventricular hypertrophy (LVH) in adults with CKD, and induces myocardial hypertrophy in experimental CKD. We hypothesized that high FGF23 levels associate with a higher prevalence of LVH in children with CKD.Design, setting, participants, & measurementsWe performed echocardiograms and measured plasma C-terminal FGF23 concentrations in 587 children with mild-to-moderate CKD enrolled in the Chronic Kidney Disease in Children (CKiD) study. We used linear and logistic regression to analyze the association of plasma FGF23 with left ventricular mass index (LVMI) and LVH (LVMI ≥95th percentile), adjusted for demographics, body mass index, eGFR, and CKD-specific factors. We also examined the relationship between FGF23 and LVH by eGFR level.ResultsMedian age was 12 years (interquartile range, 8–15) and eGFR was 50 ml/min per 1.73 m2 (interquartile range, 38–64). Overall prevalence of LVH was 11%. After adjustment for demographics and body mass index, the odds of having LVH was higher by 2.53 (95% confidence interval, 1.28 to 4.97; P<0.01) in participants with FGF23 concentrations ≥170 RU/ml compared with those with FGF23<100 RU/ml, but this association was attenuated after full adjustment. Among participants with eGFR≥45 ml/min per 1.73 m2, the prevalence of LVH was 5.4%, 11.2%, and 15.3% for those with FGF23 <100 RU/ml, 100–169 RU/ml, and ≥170 RU/ml, respectively (Ptrend=0.01). When eGFR was ≥45 ml/min per 1.73 m2, higher FGF23 concentrations were independently associated with LVH (fully adjusted odds ratio, 3.08 in the highest versus lowest FGF23 category; 95% confidence interval, 1.02 to 9.24; P<0.05; fully adjusted odds ratio, 2.02 per doubling of FGF23; 95% confidence interval, 1.29 to 3.17; P<0.01). By contrast, in participants with eGFR<45 ml/min per 1.73 m2, FGF23 did not associate with LVH.ConclusionsPlasma FGF23 concentration ≥170 RU/ml is an independent predictor of LVH in children with eGFR≥45 ml/min per 1.73 m2.


2006 ◽  
Vol 31 (6) ◽  
pp. 453-467 ◽  
Author(s):  
Eduardo J. Simoes ◽  
Rosemarie Kobau ◽  
Julie Kapp ◽  
Brian Waterman ◽  
Ali Mokdad ◽  
...  

2019 ◽  
Vol 27 (5) ◽  
pp. 696-702 ◽  
Author(s):  
Jing Liao ◽  
Sanmei Chen ◽  
Sha Chen ◽  
Yung-Jen Yang

This study aimed to examine personal and social environmental correlates of the physical activity habit of middle-aged and older adults, using Chinese square dancing as a natural exploratory example. Participants were 385 adults aged ≥45 years (93% female), who habitually danced on squares or parks of three old districts of Guangzhou. Multinomial logistic regression was used to identify personal, social, psychological, and behavioral correlates of multiyear dance. Old age, high education, sufficient leisure time, and stable social environmental factors were associated with persistent dancing, whereby education (relative risk ratio [RRR] = 1.64, 95% confidence interval [1.05, 2.57]) and social engagement (RRR = 1.66, 95% confidence interval [1.05, 2.63]) showed the largest effects. Participants dancing ≤1 year were least satisfied with their social relationships than their counterparts dancing 1–5 years (RRR = 0.68) or over 5 years (RRR = 0.58). Physical activity promotion for older adults should adapt from culturally appropriate group activities and leverage community social resources to encourage voluntary participation, particularly for low-educated older women.


2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 152-152
Author(s):  
Kayode Ajayi ◽  
Ibidayo Alebiosu

Abstract Objectives The aim of the study was to assess the association between blood pressure (BP) values and sodium intake from snacks. Methods The mean weekly consumption of snacks was evaluated in 1500 randomly selected undergraduate aged 16–24 years by a food frequency questionnaire. Participants were divided into quartiles of systolic blood pressure and diastolic blood pressure. The mean weekly exercise level was calculated as the product of duration and frequency of each activity (in hours/week), weighted by an estimate of the metabolic equivalent of the activity (MET) and summed for the activities performed. The whole cohort was divided into tertiles of exercise and the individuals were classified as; sedentary, moderately active and active. The cut of points in the whole cohort were respectively; ≤10, 11–29, ≥30 MET h/week. Exercise levels were therefore expressed as MET h/week. Results The mean age, metabolic equivalent of activity (METs), body mass index (BMI) and mean sodium intake from snacks per day were; 20.10 ± 1.44 years, 25.51 ± 10.03 METs h/week, 24.86 ± 4.80 kg/m2 and 1.5 g/day respectively. Systolic blood pressure (SBP) ranges between 104.43 ± 4.89 mmHg and 137.27 ± 16.71 mmHg while the diastolic blood pressure (DBP) ranges from 71.24 ± 7.83–83.11 ± 12.03 mmHg. The SBP and DBP significantly increased from the lower to the higher tertile of sodium from snacks and with increasing frequency of salty snacks consumption (P &lt; 0.001). In the multiple logistic regression model, being in the highest SBP quartile (≥115 mmHg) was significantly associated with consumption of sodium from snacks (odds ratio (OR) = 1.46; 95% confidence interval (CI) 1.13–1.82; P = 0.001), age, gender and body mass index. Also, being in the highest DBP quartile (≥70 mmHg) was significantly associated with consumption of sodium from snacks (odds ratio (OR) = 2.84; 95% confidence interval (CI) 1.41–5.69; P = 0.003), age, body mass index, but not with gender. Conclusions The study has shown that a strong association exists between sodium intake from snack, daily frequency of consumption of salty snacks and blood pressure. Public education and social marketing are needed to motivate the undergraduate to choose healthier snacks with lower sodium content. Funding Sources The study did not receive any funding from any source.


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