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CDC — New state physical activity indicator report now available online

July 17, 2014 Comments off

New state physical activity indicator report now available online
Source: CDC

More than half of youth in the United States have access to parks or playground areas, recreation centers, boys’ and girls’ clubs, and walking paths or sidewalks in their neighborhoods, according to a new report, State Indicator Report on Physical Activity, 2014.
The report also finds that 27 states have adopted policies that formalize their intent to plan, design and maintain streets so they are safe for all users including pedestrians, bicyclists, motorists, transit riders, and those in wheelchairs.
The report includes physical activity behavior, environment and policy information for each state and is available at www.cdc.gov/physicalactivity/downloads/pa_state_indicator_report_2014.pdf

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TV Watching and Computer Use in U.S. Youth Aged 12–15, 2012

July 15, 2014 Comments off

TV Watching and Computer Use in U.S. Youth Aged 12–15, 2012
Source: National Center for Health Statistics

Key findings

Data from the National Health and Nutrition Examination Survey (NHANES) and the NHANES National Youth Fitness Survey, 2012

  • Nearly all (98.5%) youth aged 12–15 reported watching TV daily.
  • More than 9 in 10 (91.1%) youth aged 12–15 reported using the computer daily outside of school.
  • In 2012, 27.0% of youth aged 12–15 had 2 hours or less of TV plus computer use daily.
  • Among youth aged 12–15, girls (80.4%) were more likely to use the computer 2 hours or less daily when compared with boys (69.4%).
  • Fewer non-Hispanic black youth aged 12–15 (53.4%) reported watching 2 hours or less of TV daily than non-Hispanic white (65.8%) and Hispanic (68.7%) youth.

Excessive screen-time behaviors, such as using a computer and watching TV, for more than 2 hours daily have been linked with elevated blood pressure, elevated serum cholesterol, and being overweight or obese among youth (1–3). Additionally, screen-time behavior established in adolescence has been shown to track into adulthood (4). The National Heart, Lung, and Blood Institute-supported Expert Panel and the American Academy of Pediatrics (AAP) recommend that children limit leisure screen time to 2 hours or less daily (5,6). This report presents national estimates of TV watching and computer use outside of the school day.

Treadmill walking during vocabulary encoding improves verbal long-term memory

July 14, 2014 Comments off

Treadmill walking during vocabulary encoding improves verbal long-term memory
Source: Behavioral and Brain Functions

Moderate physical activity improves various cognitive functions, particularly when it is applied simultaneously to the cognitive task. In two psychoneuroendocrinological within-subject experiments, we investigated whether very low-intensity motor activity, i.e. walking, during foreign-language vocabulary encoding improves subsequent recall compared to encoding during physical rest. Furthermore, we examined the kinetics of brain-derived neurotrophic factor (BDNF) in serum and salivary cortisol. Previous research has associated both substances with memory performance.In both experiments, subjects performed better when they were motorically active during encoding compared to being sedentary. BDNF in serum was unrelated to memory performance. In contrast we found a positive correlation between salivary cortisol concentration and the number of correctly recalled items. In summary, even very light physical activity during encoding is beneficial for subsequent recall.

Canada — Increasing opportunities for children living with intellectual disabilities to participate in physical activity

June 25, 2014 Comments off

Increasing opportunities for children living with intellectual disabilities to participate in physical activity
Source: Public Health Agency of Canada

The Public Health Agency of Canada has partnered with Special Olympics Canada, the RBC Foundation and the Samuel Family Foundation to increase opportunities for children living with intellectual disabilities to participate in physical activity.

Special Olympics Canada currently runs two initiatives, called “Active Start” and “FUNdamentals,” that provide children with an intellectual disability the opportunity to improve physical, social and cognitive abilities, thereby establishing a foundation for being physically active and healthy. With funding from the Government of Canada, the RBC Foundation and the Samuel Family Foundation, these programs will be expanded, reaching more children across Canada.

The goal of this partnership is to promote healthy living and healthy weights among children living with intellectual disability.

Obesity and Economic Environments

May 28, 2014 Comments off

Obesity and Economic Environments (PDF)
Source: CA: A Cancer Journal for Clinicians

This review summarizes current understanding of economic factors during the obesity epidemic and dispels some widely held, but incorrect, beliefs. Rising obesity rates coincided with increases in leisure time (rather than increased work hours), increased fruit and vegetable availability (rather than a decline in healthier foods), and increased exercise uptake. As a share of disposable income, Americans now have the cheapest food available in history, which fueled the obesity epidemic. Weight gain was surprisingly similar across sociodemographic groups or geographic areas, rather than specific to some groups (at every point in time; however, there are clear disparities). It suggests that if one wants to understand the role of the environment in the obesity epidemic, one needs to understand changes over time affecting all groups, not differences between subgroups at a given time. Although economic and technological changes in the environment drove the obesity epidemic, the evidence for effective economic policies to prevent obesity remains limited. Taxes on foods with low nutritional value could nudge behavior toward healthier diets, as could subsidies/discounts for healthier foods. However, even a large price change for healthy foods could close only part of the gap between dietary guidelines and actual food consumption. Political support has been lacking for even moderate price interventions in the United States and this may continue until the role of environmental factors is accepted more widely. As opinion leaders, clinicians play an important role in shaping the understanding of the causes of obesity. CA Cancer J Clin 2014;000:000-000. VC 2014 American Cancer Society.

Inactivity Related to Chronic Disease in Adults with Disabilities

May 13, 2014 Comments off

Inactivity Related to Chronic Disease in Adults with Disabilities
Source: Centers for Disease Control and Prevention

Working age adults with disabilities who get no aerobic physical activity are 50 percent more likely to have a chronic disease such as cancer, diabetes, stroke, or heart disease than their active peers, according to a Vital Signs report released today by the Centers for Disease Control and Prevention. Most adults with disabilities are able to participate in physical activity, yet nearly half (47 percent) of them get no aerobic physical activity. An additional 22 percent aren’t active enough. However, only about 44 percent of adults with disabilities who saw a doctor in the past year got a recommendation for physical activity.

Treadmill Workstations: The Effects of Walking while Working on Physical Activity and Work Performance

April 28, 2014 Comments off

Treadmill Workstations: The Effects of Walking while Working on Physical Activity and Work Performance
Source: PLoS ONE

We conducted a 12-month-long experiment in a financial services company to study how the availability of treadmill workstations affects employees’ physical activity and work performance. We enlisted sedentary volunteers, half of whom received treadmill workstations during the first two months of the study and the rest in the seventh month of the study. Participants could operate the treadmills at speeds of 0–2 mph and could use a standard chair-desk arrangement at will. (a) Weekly online performance surveys were administered to participants and their supervisors, as well as to all other sedentary employees and their supervisors. Using within-person statistical analyses, we find that overall work performance, quality and quantity of performance, and interactions with coworkers improved as a result of adoption of treadmill workstations. (b) Participants were outfitted with accelerometers at the start of the study. We find that daily total physical activity increased as a result of the adoption of treadmill workstations.

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