scholarly journals A data-driven, meaningful, easy to interpret, population-independent accelerometer outcome variable for global surveillance

2019 ◽  
Author(s):  
Alex V. Rowlands ◽  
Lauren B. Sherar ◽  
Stuart J. Fairclough ◽  
Tom Yates ◽  
Charlotte L. Edwardson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Vigorous Physical Activity ◽  
Secondary Data ◽  
Data Driven ◽  
Outcome Variable ◽  
Accelerometer Data ◽  
Physical Activity Guidelines ◽  
Menopausal Women ◽  
Post Menopausal

AbstractBackgroundAccelerometer-driven physical activity guidelines are not available, likely due to the lack of consensus on meaningful and interpretable accelerometer outcomes. The aim of this paper is to demonstrate how a data-driven accelerometer metric, the acceleration above which a person’s most active minutes are accumulated, can a) quantify the prevalence of meeting current physical activity guidelines for global surveillance and b) moving forward, could inform accelerometer-driven physical activity guidelines. Unlike cut-point methods, the metric is population-independent (e.g. age) and comparable across datasets.MethodsSecondary data analyses were carried out on five datasets using wrist-worn accelerometers: children (N=145), adolescent girls (N=1669), office workers (N=114), pre- (N=1218) and post- (N=1316) menopausal women, and adults with type 2 diabetes (N=475). Open-source software (GGIR) was used to generate the magnitude of acceleration above which a person’s most active 60, 30 and 2 minutes are accumulated: M60ACC; M30ACCand M2ACC, respectively.ResultsThe proportion of participants with M60ACC(children) and M30ACC(adults) values higher than accelerations indicative of brisk walking (i.e., moderate-to-vigorous physical activity) ranged from 17-68% in children and 15%-81% in adults, tending to decline with age. The proportion of pre-and post-menopausal women with M2ACCvalues indicative of running and thus meeting recently presented thresholds for bone health ranged from 6-13%.ConclusionThese metrics can be used for global surveillance of physical activity, including assessing prevalence of meeting the current physical activity guidelines, across the lifespan. Translation of acceleration magnitudes into indicative activities provides a public health friendly interpretation of results. As accelerometer and corresponding health data accumulate it will be possible to interpret the metrics relative to age- and sex-specific norms and derive evidence-based physical activity guidelines directly from accelerometer data for use in future global surveillance. This is where the key advantages of these metrics lie.

Impact of the implantable cardioverter defibrillator on confidence to undertake physical activity in inherited heart disease: A cross-sectional study

2017 ◽  
Vol 16 (8) ◽  
pp. 742-752 ◽  
Author(s):  
Joanna Sweeting ◽  
Kylie Ball ◽  
Julie McGaughran ◽  
John Atherton ◽  
Christopher Semsarian ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Disease ◽  
Implantable Cardioverter Defibrillator ◽  
Vigorous Physical Activity ◽  
Survey Study ◽  
Accelerometer Data ◽  
Cross Sectional ◽  
Physical Activity Guidelines ◽  
Cardioverter Defibrillator ◽  
The Impact

Background: Physical activity is associated with improved quality of life. Patients with an implantable cardioverter defibrillator (ICD) face unique clinical and psychological challenges. Factors such as fear of ICD shock may negatively impact on physical activity, while a sense of protection gained from the ICD may instil confidence to be active. Aim: We aimed to examine the impact of an ICD on physical activity levels and factors associated with amount of activity. Methods: Two cross-sectional studies were conducted. Accelerometer data (seven-day) was collected in March–November 2015 for 63 consecutively recruited hypertrophic cardiomyopathy patients, with or without an ICD, aged ⩾18 years. A survey study was conducted in July–August 2016 of 155 individuals aged ⩾18 years with an inherited heart disease and an ICD in situ. Results: Based on the International Physical Activity Questionnaire, mean leisure time physical activity was 239 ± 300 min/week with 51% meeting physical activity guidelines. Accelerometry showed that mean moderate–vigorous physical activity was the same for patients with and without an ICD (254 ± 139 min/week versus 300 ± 150 min/week, p=0.23). Nearly half of survey participants ( n=73) said their device made them more confident to exercise. Being anxious about ICD shocks was the only factor associated with not meeting physical activity guidelines. Conclusions: Patients with inherited heart disease adjust differently to their ICD device, and for many it has no impact on physical activity. Discussion regarding the appropriate level of physical activity and potential barriers will ensure best possible outcomes in this unique patient group.

scholarly journals Awareness and Adherence to Government Guidelines on Physical Activity by American Adults

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 1293-1293
Author(s):  
Teresia Mbogori
Keyword(s):  
Physical Activity ◽  
Vigorous Physical Activity ◽  
Secondary Data ◽  
The United States ◽  
Chi Square ◽  
Physically Active ◽  
Physical Activity Guidelines ◽  
Nationally Representative ◽  
The Government ◽  
Chi Square Analysis

Abstract Objectives U.S. Department of Health and Human Services provides physical activity guidelines for Americans. Current guidelines recommend at least 30–60 minutes of moderate to vigorous physical activity 5 days a week. This level of physical activity is associated with reduction of many adverse health outcomes. This study sought to investigate the awareness and adherence to these guidelines by adults in the United States. Methods A secondary data analysis was conducted using the Health Information National Trends Survey (HINTS-5 Cycle 3), a nationally-representative survey administered by the National Cancer Institute (NCI). Data were collected between January and May 2019 among 5438 adults. Participants were asked if they were aware of government guidelines on physical activity, where they had heard this information and the action they took. In addition, participants were asked the number of days in a week they were physically active or exercised and for how long. Descriptive and Chi square statistics were used to determine the level of awareness and adherence to physical activity guidelines and the relationship between awareness and actions taken. Results About 36% of the participants stated that they had not heard about government recommendations on physical activity. 46% stated that they heard about the guidelines but did not make any changes to their physical activity routine while 5.3% stated that they increased their physical activity. Sources of this information were, television (34%), social media or internet (25%), health professionals or doctor (24%), and magazines (19%). About 54% of the participants reported that they were physically active 3 or more days per week while 26% stated that they did no physical activity. About 68.4% of those who reported exercising did so for 30–60 minutes while 15% exercised for more than 60 minutes per day. Chi square analysis showed that a higher percentage of those who reported not exercising at all also reported that they had not heard about the government recommendations of physical activity (X2 = 29.6; P < 0.0001). Conclusions There still remains a considerable section of the population that is not aware of the government guidelines on physical activity. There is need for continued public education on the benefits of physical activity and the amount of physical activity that is likely to result in such benefits. Funding Sources None.

scholarly journals The Associations Between Access to Recreational Facilities and Adherence to the American Heart Association's Physical Activity Guidelines in US Adults

2021 ◽  
Vol 9 ◽  
Author(s):  
Larissa Andrade ◽  
Ryan Geffin ◽  
Mark Maguire ◽  
Pura Rodriguez ◽  
Grettel Castro ◽  
...  
Keyword(s):  
Physical Activity ◽  
Low Cost ◽  
Vigorous Physical Activity ◽  
Cross Sectional Study ◽  
Outcome Variable ◽  
Future Research ◽  
Cross Sectional ◽  
Recreational Facilities ◽  
Physical Activity Guidelines

Physical activity decreases the risk of long-term health consequences including cardiac diseases. According to the American Health Association (AHA), adults should perform at least 75 min of vigorous physical activity (PA) or 150 min of moderate PA per week to impact long-term health. Results of previous studies are varied and have yet to integrate perceived access to facilities with AHA PA guidelines. We investigated whether access to free or low-cost recreational facilities was associated with meeting the AHA PA guidelines.Methodology: This cross-sectional study utilized data extracted from the Family Life, Activity, Sun, Health, and Eating (FLASHE) database collected in 2017 (n = 1,750). The main exposure variable was access to free or low-cost recreational facilities. The main outcome variable was meeting the AHA guidelines of 150 min moderate PA or 75 min vigorous PA per week. Covariates included age, sex, level of education, overall health, BMI, ethnicity, hours of work per week, income, and time living at current address. Unadjusted and adjusted logistic regression analysis were used to calculate measures of odds ratio (OR) and corresponding 95% confidence interval (CI).Results: Of the 1,750 included participants, 61.7% (n = 1,079) reported to have access to recreational facilities. Of those with access to facilities, 69.9% met AHA PA guidelines while 30.4% did not. After adjusting for covariates, participants who reported access to recreational facilities were 42% more likely to meet AHA PA guidelines compared with participants who did not (adjusted OR 1.42; 95% CI 1.14–1.76). Secondary results suggest that healthier individuals were more likely to have met AHA PA guidelines.Conclusions: Having access to free or low-cost recreational facilities such as parks, walking trails, bike paths and courts was associated with meeting the AHA PA guidelines. Increasing prevalence and awareness of neighborhood recreational facilities could assist in access to these facilities and increase the ability of individuals to meet AHA PA guidelines. Future research should determine which types of recreational facilities impact physical activity strongest and discover methods of increasing their awareness.

scholarly journals A U-shaped association between depression and vigorous physical activity: A cross-sectional study in a cohort of police officers and staff in England

2021 ◽  
Vol 6 (2) ◽  
pp. 48-55
Author(s):  
Rabeea Maqsood ◽  
Sarah Buckingham ◽  
Karyn Morrissey
Keyword(s):  
Physical Activity ◽  
Police Officers ◽  
Population Policy ◽  
Vigorous Physical Activity ◽  
Secondary Data ◽  
Target Population ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Physical Activity Guidelines ◽  
Physically Inactive

Policing has become an increasingly sedentary occupation. At the same time, rates of depression are increasing across the police force. Vigorous physical activity (VPA) has been associated with decreasing rates of depression, yet studies of VPA in policing are limited. This study aimed to explore the prevalence of depression and examine its association with VPA in police officers and staff in England, further stratified by gender. A cross-sectional, secondary data analysis of the Airwave dataset was undertaken. The data were analyzed using descriptive statistics and multivariate logistic regression. Of 28,465 police officers and staff in England, 12% reported having doctor-diagnosed depression and 25% were physically inactive. Relative to being physically inactive, undertaking VPA for either four or seven days was significantly associated with having the lowest odds of reporting depression (OR 0.59, 95% CI: 0.51–0.70, p < 0.001) (OR 0.59, 95% CI: 0.45–0.77, p < 0.001), respectively, suggesting a U-shaped/non-linear relationship. This relationship was also observed in the gender-stratification analysis. While the odds of reporting depression were significantly lower for men than women, VPA was significantly associated with reducing the odds of reporting depression slightly more in women (OR 0.43, 95% CI: 0.27–0.67, p < 0.001) than in men (OR 0.50, 95% CI: 0.33–0.75, p < 0.01), indicating women may be more likely to benefit from VPA than men. Vigorous physical activity may provide a protective effect against depression. To prevent the onset of depression in the target population, policy-makers should consider designing physical activity guidelines for police officers to promote VPA in the target population.

Accelerometer-Measured Patterns of Shared Physical Activity Among Mother–Young Child Dyads

2017 ◽  
Vol 14 (10) ◽  
pp. 808-814 ◽  
Author(s):  
Deirdre Dlugonski ◽  
Katrina Drowatzky DuBose ◽  
Patrick Rider
Keyword(s):  
Physical Activity ◽  
Young Child ◽  
Young Children ◽  
Vigorous Physical Activity ◽  
Accelerometer Data ◽  
Proximity Function ◽  
Social Modeling ◽  
Physical Activity Guidelines ◽  
Shared Time ◽  
Sedentary Activities

Background:Many mothers and young children are not meeting physical activity guidelines. Parent–child coparticipation in physical activity (ie, shared physical activity) provides opportunities for social modeling and might be associated with child physical activity. There is very little information about shared physical activity using objective measures.Methods:Participants (N = 17 mother–young child dyads) completed a demographic survey and height/weight measurements, and wore a Bluetooth® accelerometer for 1 week. Accelerometers were initialized using the proximity function to yield both individual and proximity [a minute-by-minute log of whether the 2 accelerometers were in- or out-of-range (∼50 m or less)] data. Shared physical activity was calculated in MATLAB by overlaying individual and proximity accelerometer data.Results:Mother–child dyads spent approximately 2 hours per day in shared time that was mostly shared sedentary activities. Less than 1% of shared minutes per day were spent in shared moderate to vigorous physical activity.Conclusions:Mothers and young children spent a small portion of their day in shared activities. Most mother–child shared time was spent in sedentary or light activities rather than moderate to vigorous physical activity. This method for objectively measuring shared physical activity provides novel information about the context in which physical activity occurs and could be used to understand patterns of physical activity among other dyads.

scholarly journals Enhancing the value of accelerometer-assessed physical activity: meaningful visual comparisons of data-driven translational accelerometer metrics

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Alex V. Rowlands ◽  
Nathan P. Dawkins ◽  
Ben Maylor ◽  
Charlotte L. Edwardson ◽  
Stuart J. Fairclough ◽  
...  
Keyword(s):  
Physical Activity ◽  
Vigorous Physical Activity ◽  
Data Driven ◽  
Accelerometer Data ◽  
Continuous Variables ◽  
Intensity Gradient ◽  
Activity Profile ◽  
Individual Activity ◽  
Public Health Messages ◽  
Average Acceleration

AbstractThe lack of consensus on meaningful and interpretable physical activity outcomes from accelerometer data hampers comparison across studies. Cut-point analyses are simple to apply and easy to interpret but can lead to results that are not comparable. We propose that the optimal accelerometer metrics for data analysis are not the same as the optimal metrics for translation. Ideally, analytical metrics are precise continuous variables that cover the intensity spectrum, while translational metrics facilitate meaningful, public-health messages and can be described in terms of activities (e.g. brisk walking) or intensity (e.g. moderate-to-vigorous physical activity). Two analytical metrics that capture the volume and intensity of the 24-h activity profile are average acceleration (volume) and intensity gradient (intensity distribution). These allow investigation of independent, additive and interactive associations of volume and intensity of activity with health; however, they are not immediately interpretable. The MX metrics, the acceleration above which the most active X minutes are accumulated, are translational metrics that can be interpreted in terms of indicative activities. Using a range of MX metrics illustrates the intensity gradient and average acceleration (i.e. 24-h activity profile). The M120, M60, M30, M15 and M5 illustrate the most active accumulated minutes of the day, the M1/3DAY the most active accumulated 8 h of the day. We demonstrate how radar plots of MX metrics can be used to interpret and translate results from between- and within-group comparisons, provide information on meeting guidelines, assess individual activity profiles relative to percentiles and compare activity profiles between domains and/or time periods.

Physical Activity, Diet, and Incident Urinary Incontinence in Postmenopausal Women: Women’s Health Initiative Observational Study

2021 ◽  
Author(s):  
Scott R Bauer ◽  
Stacey A Kenfield ◽  
Mathew Sorensen ◽  
Leslee L Subak ◽  
Suzanne Phelan ◽  
...  
Keyword(s):  
Physical Activity ◽  
Urinary Incontinence ◽  
Observational Study ◽  
Weight Change ◽  
Protein Intake ◽  
Macronutrient Intake ◽  
Health Initiative ◽  
Menopausal Women ◽  
Baseline Weight ◽  
Post Menopausal

Abstract Background Physical activity and macronutrient intake, important contributors to energy balance, may be independently associated with female urinary incontinence (UI). Methods We evaluated the association of baseline self-reported physical activity and macronutrient intake, via food-frequency questionnaire, with incident UI subtypes after 3 years among 19,741 post-menopausal women in the Women’s Health Initiative Observational Study. Odds ratios (OR) for incident urgency, stress, and mixed UI were calculated using multivariable logistic regression. Results Women who reported total physical activity (MET-hours/week) ≥30 vs &lt;0.1 were 16% less likely to develop urgency UI (OR=0.84; 95% CI 0.70, 1.00) and 34% less likely for mixed UI (OR=0.66; 0.46, 0.95), although linear trends were no longer statistically significant after adjusting for baseline weight and weight change (P-trend=0.15 and 0.16, respectively). The association between physical activity and incident stress UI was less consistent. Higher uncalibrated protein intake was associated with increased odds of incident urgency UI (≥19.4% versus &lt;14.1% of energy intake OR=1.14; 95% CI 0.99, 1.30; P-trend=0.02), while confidence intervals were wide and included 1.0 for calibrated protein intake. Other macronutrients were not associated with urgency UI and macronutrient intake was not associated with incident stress or mixed UI (P-trend&gt;0.05 for all). Conclusions Among post-menopausal women, higher physical activity was associated with lower risk of incident urgency and mixed UI, but not stress UI, independent of baseline weight and weight change. Higher protein intake was associated with increase urgency UI, but no associations were observed between other macronutrient and UI subtypes.

scholarly journals Children’s moderate-to-vigorous physical activity on weekdays versus weekend days: a multi-country analysis

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Keith Brazendale ◽  
◽  
Michael W. Beets ◽  
Bridget Armstrong ◽  
R. Glenn Weaver ◽  
...  
Keyword(s):  
Physical Activity ◽  
Weight Status ◽  
Vigorous Physical Activity ◽  
Normal Weight ◽  
Analytical Models ◽  
Accelerometer Data ◽  
Inclusion Criteria ◽  
Total Wear ◽  
Valid Data ◽  
Country Analysis

Abstract Purpose The Structured Days Hypothesis (SDH) posits that children’s behaviors associated with obesity – such as physical activity – are more favorable on days that contain more ‘structure’ (i.e., a pre-planned, segmented, and adult-supervised environment) such as school weekdays, compared to days with less structure, such as weekend days. The purpose of this study was to compare children’s moderate-to-vigorous physical activity (MVPA) levels on weekdays versus weekend days using a large, multi-country, accelerometer-measured physical activity dataset. Methods Data were received from the International Children’s Accelerometer Database (ICAD) July 2019. The ICAD inclusion criteria for a valid day of wear, only non-intervention data (e.g., baseline intervention data), children with at least 1 weekday and 1 weekend day, and ICAD studies with data collected exclusively during school months, were included for analyses. Mixed effects models accounting for the nested nature of the data (i.e., days within children) assessed MVPA minutes per day (min/day MVPA) differences between weekdays and weekend days by region/country, adjusted for age, sex, and total wear time. Separate meta-analytical models explored differences by age and country/region for sex and child weight-status. Results/findings Valid data from 15 studies representing 5794 children (61% female, 10.7 ± 2.1 yrs., 24% with overweight/obesity) and 35,263 days of valid accelerometer data from 5 distinct countries/regions were used. Boys and girls accumulated 12.6 min/day (95% CI: 9.0, 16.2) and 9.4 min/day (95% CI: 7.2, 11.6) more MVPA on weekdays versus weekend days, respectively. Children from mainland Europe had the largest differences (17.1 min/day more MVPA on weekdays versus weekend days, 95% CI: 15.3, 19.0) compared to the other countries/regions. Children who were classified as overweight/obese or normal weight/underweight accumulated 9.5 min/day (95% CI: 6.9, 12.2) and 10.9 min/day (95% CI: 8.3, 13.5) of additional MVPA on weekdays versus weekend days, respectively. Conclusions Children from multiple countries/regions accumulated significantly more MVPA on weekdays versus weekend days during school months. This finding aligns with the SDH and warrants future intervention studies to prioritize less-structured days, such as weekend days, and to consider providing opportunities for all children to access additional opportunities to be active.

scholarly journals Physical Activity Level of Post-menopausal Women with Low Bone Mineral Density

2016 ◽  
Vol 38 (05) ◽  
pp. 225-230 ◽  
Author(s):  
Glauber Dallanezi ◽  
Beatriz Freire ◽  
Eliana Nahás ◽  
Jorge Nahás-Neto ◽  
José Corrente ◽  
...  
Keyword(s):  
Physical Activity ◽  
Bone Mineral Density ◽  
Bone Mineral ◽  
Physical Activity Level ◽  
Activity Level ◽  
Mineral Density ◽  
Low Bone Mineral Density ◽  
Menopausal Women ◽  
Post Menopausal
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