Long-term Surveillance of Physical Activity Habits of Latinas Enrolled in a 12-Month Physical Activity Intervention

Background:Long-term physical activity surveillance has not been conducted among Latinas. This study explored the variability of daily physical activity habits of inactive adult Latinas participating in a 12-month physical activity intervention.Methods:We collected objective physical activity data (pedometer) from 139 Spanish speaking Latinas (age = 41.6 ± 10.1 years; BMI = 29.6 ± 4.3 kg/m2) enrolled in a 12-month physical activity intervention. Total and aerobic steps (>100 steps/minute) were computed by year, season, month, day of week, time of day, and hour.Results:Participants walked an average of 6509 steps/day of which 1303 (20%) were aerobic steps. Significant physical activity differences were observed for subgroups including generational status, education, employment, income, marital status and health literacy. Significant and similar differences were observed for both total steps and aerobic steps for day of the week (weekdays > weekends) and season (summer > spring > fall > winter). Opposing trends were observed over the course of the day for total steps (early afternoon > late morning > late afternoon > early morning > evening) and aerobic steps (early morning > evening > late morning > late afternoon > early afternoon).Conclusions:Both seasonality and week day predicted physical activity habits of Latinas. This is the first long-term study to track daily physical activity habits of Latinas. These data have potential to inform the design of future physical activity interventions targeting Latinas.

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Effects of a 1-Year Physical Activity Intervention on Markers of Hemostasis among Breast Cancer Survivors: A Randomized Controlled Trial

TH Open ◽

10.1055/s-0040-1721782 ◽

2021 ◽

Vol 05 (01) ◽

pp. e14-e23

Author(s):

Siv Kjølsrud Bøhn ◽

Inger Thune ◽

Vidar Gordon Flote ◽

Hanne Frydenberg ◽

Gro Falkenér Bertheussen ◽

...

Keyword(s):

Breast Cancer ◽

Physical Activity ◽

Postmenopausal Women ◽

Cancer Patients ◽

Physical Activity Intervention ◽

Intervention Group ◽

Factor Vii ◽

Breast Cancer Patients ◽

Hemostatic Factors

Abstract Introduction Physical activity may reduce the development of breast cancer. Whereas hypercoagulability has been linked to adverse outcomes in breast cancer patients, the effects of physical activity on their hemostatic factors are unknown. The study aimed to assess whether long-term (1 year) physical activity can affect hemostatic factors in breast cancer patients. Methods Fifty-five women (35–75 years) with invasive breast cancer stage I/II were randomized to a physical activity intervention (n = 29) lasting 1 year or to a control group (n = 26), and analyzed as intention to treat. Fibrinogen, factor VII antigen, tissue factor pathway inhibitor, and von Willebrand factor (VWF) antigen as well as prothrombin fragment 1 + 2, the endogenous thrombin potential and D-dimer, were measured in plasma before intervention (baseline), and then after 6 and 12 months. Results Maximal oxygen uptake (measure of cardiorespiratory fitness) decreased the first 6 months among the controls, but remained stable in the intervention group. We found no significant differences between the two study groups regarding any of the hemostatic factors, except a significantly higher increase in factor VII antigen in the intervention group. The effect of the intervention on VWF was, however, significantly affected by menopausal stage, and a significant effect of the intervention was found on VWF among postmenopausal women, even after adjustment for dietary intake. Conclusion Long-term physical activity had no effect on the majority of the hemostatic factors measured, but led to increased plasma concentrations of factor VII antigen and prevented an increase in VWF concentration after breast cancer treatment in postmenopausal women. The clinical impact of these findings for risk of vascular thrombosis warrants further studies.

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Long‐term effectiveness of an mHealth‐tailored physical activity intervention in youth with congenital heart disease: A randomized controlled trial

Journal of Advanced Nursing ◽

10.1111/jan.14924 ◽

2021 ◽

Author(s):

Pei‐Jung Lin ◽

Yong‐Yi Fanjiang ◽

Jou‐Kou Wang ◽

Chun‐Wei Lu ◽

Kuan‐Chia Lin ◽

...

Keyword(s):

Physical Activity ◽

Congenital Heart Disease ◽

Randomized Controlled Trial ◽

Heart Disease ◽

Congenital Heart ◽

Physical Activity Intervention ◽

Controlled Trial ◽

Randomized Controlled

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Controlled outcome evaluation of the First Step Program: a daily physical activity intervention for individuals with type II diabetes

International Journal of Obesity ◽

10.1038/sj.ijo.0802485 ◽

2003 ◽

Vol 28 (1) ◽

pp. 113-119 ◽

Cited By ~ 177

Author(s):

C Tudor-Locke ◽

R C Bell ◽

A M Myers ◽

S B Harris ◽

N A Ecclestone ◽

...

Keyword(s):

Physical Activity ◽

Type Ii Diabetes ◽

Physical Activity Intervention ◽

Outcome Evaluation ◽

Daily Physical Activity ◽

Type Ii ◽

Step Program

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Intra- and inter-day variability in plasma tCO2 concentration in sedentary horses

Comparative Exercise Physiology ◽

10.3920/cep13027 ◽

2014 ◽

Vol 10 (1) ◽

pp. 39-47

Author(s):

B.E. Bergstrom ◽

J.H. Foreman ◽

C.R. Foreman ◽

A.M. Barger

Keyword(s):

Blood Test ◽

Indoor Environment ◽

Early Morning ◽

Time Of Day ◽

Individual Variability ◽

Strong Ion Difference ◽

Serum Chemistry ◽

Blood Samples ◽

Early Afternoon ◽

Glass Tubes

Sodium bicarbonate and other alkalinising solutions (‘milkshakes’) have been given to horses surreptitiously before exercise to provide exogenous buffering effects. After an initial positive blood test, some accused horse trainers claim that their horses ‘naturally test high’, so some jurisdictions allow a secured quarantine in which the horse is tested multiple times. The objective of this experiment was to determine the intra- and inter-day variability of plasma total CO2 (tCO2) and other plasma strong ions in a group of sedentary horses housed similarly to a quarantine period. The hypothesis was that plasma tCO2 would not remain constant over a multi-day monitoring interval, but would vary measurably during that interval. Eight sedentary (unconditioned) horses were studied for 2 weeks. Horses were acclimated to a climate-controlled indoor environment and an alfalfa-only diet for a minimum of 10 days prior to sampling. Horses were sampled 3 times daily for 5 consecutive days at 7:00, 11:00 and 15:00 h. Blood samples were collected directly into 10 ml heparinised evacuated glass tubes by jugular venipuncture using a double-ended 0.91 mm needle. Samples were chilled until concentrations of plasma tCO2, Na+, K+, and Cl-, were determined within 1-3 h of sampling using an automated serum chemistry analyzer which was calibrated daily using commercial reagents obtained from the manufacturer as well as externally-obtained NIST-traceable calibrating solutions. Mean results documented mild variations in mean plasma tCO2 (range 28.9-31.6 mmol/l), but individual horses’ plasma tCO2 ranged over 4-7 units. Results showed that there was considerable intra- and inter-individual variability in plasma tCO2. Mean pooled tCO2 and measured strong ion difference (SIDm) differed by time-of-day, with both late morning and early afternoon values lower than early morning values (P<0.001). There was a strong positive linear relationship between plasma SIDm and tCO2 (r=0.75, P<0.001).

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EFFECT OF TIME OF DAY, A PARASITIC FUNGUS, AND A GENETIC MUTATION ON RATE OF PHOTOSYNTHESIS IN THE LOWBUSH BLUEBERRY

Canadian Journal of Botany ◽

10.1139/b66-064 ◽

1966 ◽

Vol 44 (5) ◽

pp. 529-533 ◽

Cited By ~ 4

Author(s):

I. V. Hall ◽

F. R. Forsyth ◽

C. L. Lockhart ◽

L. E. Aalders

Keyword(s):

Early Morning ◽

Genetic Mutation ◽

Time Of Day ◽

Parasitic Fungus ◽

Mutant Type ◽

Lowbush Blueberry ◽

Early Afternoon ◽

Rate Of Photosynthesis ◽

Sugar Levels ◽

Leaf Disks

The apparent rate of photosynthesis in the lowbush blueberry was measured, at four periods of the day, on leaf disks in Warburg flasks and with the use of Pardee's CO2 buffers. Significant differences were found in rates of O2 evolution at the four different periods. Oxygen evolution was greatest in the early morning when reducing sugars and starch levels were lowest. By early afternoon when starch and reducing sugar levels were much greater in the leaf disks the rate was the lowest.Leaf disks infected with Exobasidium vaccinii had a lower rate of apparent photosynthesis than normal leaves of the same clone. Disks cut from normal leaves of Vaccinium angustifolium had a higher rate of apparent photosynthesis than those of a variegated mutant. The leaves of the mutant were significantly smaller and seedlings of the mutant type grew more slowly than normal ones of the same cross. For these reasons lowbush blueberry plants of the mutant type or having the red-leaf disease are at a distinct disadvantage in nature.

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Long-term efficacy of a printed or a Web-based tailored physical activity intervention among older adults

International Journal of Behavioral Nutrition and Physical Activity ◽

10.1186/1479-5868-10-104 ◽

2013 ◽

Vol 10 (1) ◽

pp. 104 ◽

Cited By ~ 49

Author(s):

Denise Peels ◽

Catherine Bolman ◽

Rianne Henrica Johanna Golsteijn ◽

Hein de Vries ◽

Aart Mudde ◽

...

Keyword(s):

Physical Activity ◽

Older Adults ◽

Physical Activity Intervention ◽

Web Based ◽

Term Efficacy

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Quantile Coarsening Analysis of High-Volume Wearable Activity Data in a Longitudinal Observational Study

Sensors ◽

10.3390/s18093056 ◽

2018 ◽

Vol 18 (9) ◽

pp. 3056 ◽

Cited By ~ 3

Author(s):

Ying Cheung ◽

Pei-Yun Hsueh ◽

Ipek Ensari ◽

Joshua Willey ◽

Keith Diaz

Keyword(s):

Physical Activity ◽

Activity Patterns ◽

High Volume ◽

Original Data ◽

Individual Characteristics ◽

Daily Physical Activity ◽

Sampled Data ◽

Activity Data ◽

Partner Status ◽

Versatile Tool

Owing to advances in sensor technologies on wearable devices, it is feasible to measure physical activity of an individual continuously over a long period. These devices afford opportunities to understand individual behaviors, which may then provide a basis for tailored behavior interventions. The large volume of data however poses challenges in data management and analysis. We propose a novel quantile coarsening analysis (QCA) of daily physical activity data, with a goal to reduce the volume of data while preserving key information. We applied QCA to a longitudinal study of 79 healthy participants whose step counts were monitored for up to 1 year by a Fitbit device, performed cluster analysis of daily activity, and identified individual activity signature or pattern in terms of the clusters identified. Using 21,393 time series of daily physical activity, we identified eight clusters. Employment and partner status were each associated with 5 of the 8 clusters. Using less than 2% of the original data, QCA provides accurate approximation of the mean physical activity, forms meaningful activity patterns associated with individual characteristics, and is a versatile tool for dimension reduction of densely sampled data.

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Physical activity modification in youth with congenital heart disease: a comprehensive narrative review

Pediatric Research ◽

10.1038/s41390-020-01194-8 ◽

2020 ◽

Author(s):

Arend W. van Deutekom ◽

Adam J. Lewandowski

Keyword(s):

Physical Activity ◽

Congenital Heart Disease ◽

Heart Disease ◽

Congenital Heart ◽

Physical Activity Intervention ◽

Large Range ◽

Physical Activity Promotion ◽

Activity Levels ◽

Activity Promotion

Abstract Congenital heart disease (CHD) affects nearly 1% of births. As survival rates have dramatically improved, the majority of individuals with CHD now live into adulthood. As these patients age, they become prone to a large range of complications, such as chronic heart failure and acquired cardiovascular disease. Promotion of a healthy and active lifestyle from childhood onwards has been suggested as a sustainable and effective strategy to enhance cardiovascular health, improve quality of life and reduce immediate and long-term risk in people with CHD. Well-established physical activity consensus statements for youth with CHD have now been published. In this article, we review how increasing physical activity in youth with CHD may offer immediate and long-term cardiovascular benefits, what is known about physical activity in children with CHD, describe the unique factors that contribute to achieving sufficient and insufficient physical activity levels and summarize the evidence of trials on physical activity promotion in youth with CHD. Furthermore, we discuss some of the challenges that need to be addressed by further research regarding the optimal strategy, timing and format of physical activity intervention programmes in children and adolescents with CHD. Impact Congenital heart disease (CHD) affects nearly 1% of births, with the majority of individuals with CHD now living into adulthood due to improved survival. As CHD patients age, they become prone to a large range of cardiovascular complications. This article discusses how and why increasing physical activity in youth with CHD may offer immediate and long-term cardiovascular benefits, the barriers to achieving sufficient physical activity levels and the evidence from trials on physical activity promotion in youth with CHD. The optimal strategy, timing and format of physical activity intervention programmes in children and adolescents with CHD are discussed.

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Neighborhood Poverty Histories and Physical Activity Among Children: Findings From the Geographic Research on Wellbeing (GROW) Study

American Journal of Health Promotion ◽

10.1177/0890117120923948 ◽

2020 ◽

Vol 34 (8) ◽

pp. 876-885

Author(s):

Yeonwoo Kim ◽

Catherine Cubbin

Keyword(s):

Physical Activity ◽

Infant Health ◽

Health Assessment ◽

Cross Sectional Study ◽

Daily Physical Activity ◽

Mediation Effect ◽

Cross Sectional ◽

Neighborhood Poverty ◽

Poor Children

Purpose: Examine the association between neighborhood poverty histories and physical activity, and the moderation effect of family poverty and the mediation effect of built environments in such association. Design: A cross-sectional study of the Geographic Research on Wellbeing (2012-2013), a follow-up survey of statewide-representative Maternal and Infant Health Assessment (2003-2007). Setting: California. Participants: A total of 2493 women with children. Measures: Outcome measures are (1) daily leisure physical activity and (2) days of physical activity among children. An independent variable is poverty histories of census tract where the child resided. Mediators were mother-perceived social cohesion, mother-perceived neighborhood safety, distance to the closest park, and park acreage within 0.5 miles from the home. A moderator is family poverty. Analysis: Weighted regression analysis. Results: Family poverty was a significant moderator ( P < .05); poor children in neighborhoods with long-term moderate poverty, long-term high poverty, or increasing poverty (vs long-term low poverty) had greater odds of daily physical activity (odds ratio [OR] = 1.46, 1.50, 1.66, respectively). Nonpoor children in neighborhoods with long-term moderate poverty or increasing poverty (vs long-term low poverty) were associated with decreased odds of daily physical activity (OR = 0.61 and 0.44, respectively). Mediation associations were insignificant ( P > .05). Conclusion: The combined effect of family financial strains and neighborhood economic resources might prevent poor children in neighborhoods with long-term low poverty and decreasing poverty from utilizing health-promoting resources in neighborhoods.

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