Search Results

You are looking at 1 - 10 of 602 items for :

Clear All
Restricted access

Jonathan M. Miller, Mark A. Pereira, Julian Wolfson, Melissa N. Laska, Toben F. Nelson and Dianne Neumark-Sztainer

Moderate to vigorous physical activity (MVPA) is a modifiable health behavior that protects against many chronic diseases, including heart disease and cancer. 1 Adolescence is a critical window during which MVPA declines. 2 This decline occurs earlier among girls than among boys, 2 and nonwhite

Full access

Erin Strutz, Raymond Browning, Stephanie Smith, Barbara Lohse and Leslie Cunningham-Sabo

–vigorous PA (MVPA) and adults to accumulate 30 minutes of MVPA on most days of the week; however, existing estimates of children’s activity levels suggest that only 42% of children aged 6–11 years and only 5% of adults actually achieve these daily goals. 3 – 5 Given the lack of participation in regular PA

Restricted access

Kara C. Hamilton, Mark T. Richardson, Shanda McGraw, Teirdre Owens and John C. Higginbotham

to vigorous physical activity (MVPA) most days of the week, 3 but, nationwide, only 47% of children meet this guideline; and, in Alabama, only 43% of children meet it. 4 Moreover, studies have shown that underserved children who are of low socioeconomic status (SES) are even less physically active

Restricted access

Hyo Jung Yoon, Sang Ah Lee, Young Jun Ju, Jin Young Nam and Eun-Cheol Park

2010. 4 The recommendation is 60 or more minutes of moderate- to vigorous-intensity physical activity (MVPA) daily. 5 Compared with Europe and the United States, adolescents from East Asia had lower levels of PA and spent more time being sedentary. 6 South Korea reported the most insufficient PA

Restricted access

Rosalie Coolkens, Phillip Ward, Jan Seghers and Peter Iserbyt

The World Health Organization together with the Institute of Medicine recommend at least 60 minutes of moderate to vigorous physical activity (MVPA) for children and youth aged 5 to 17 years. 1 , 2 Results of the 2013/2014 cross-national Health Behavior in School-Aged Children study showed that 21

Restricted access

Erika Rees-Punia, Charles E. Matthews, Ellen M. Evans, Sarah K. Keadle, Rebecca L. Anderson, Jennifer L. Gay, Michael D. Schmidt, Susan M. Gapstur and Alpa V. Patel

interest as LPA may be viewed as more attainable by less fit individuals and is a major contributor to total PA energy expenditure ( Loprinzi, 2017 ; Saint-Maurice, Moore, Keadle, & Matthews, 2018 ; Villablanca et al., 2015 ). Although many prior validation studies focus on total PA or MVPA, it is

Restricted access

Ruri Famelia, Emi Tsuda, Syahrial Bakhtiar and Jacqueline D. Goodway

minutes of structured physical activity daily, with daily bouts of moderate-to-vigorous physical activity (MVPA) due to the association with health ( NASPE, 2009 ). Active Start also highlights that preschoolers should develop FMS competence and have access to safe places to play and be active ( NASPE

Restricted access

Alex Griffiths, Calum Mattocks, Andy Robert Ness, Kate Tilling, Chris Riddoch and Sam Leary

Background:

A study deriving a threshold for moderate- to vigorous-intensity physical activity (MVPA) in terms of accelerometer counts in 12-year-old children was repeated with a subset of the same children at 16 years.

Methods:

Fifteen girls and thirty boys took part in 6 activities (lying, sitting, slow walking, walking, hopscotch and jogging) while wearing an Actigraph 7164 accelerometer and a Cosmed K4b2 portable metabolic unit. Random intercepts modeling was used to estimate cut points for MVPA (defined as 4 METs).

Results:

Using a single model, the sex-specific thresholds derived for MVPA at 16 years were some way below the 3600 counts/minute used for both sexes at age 12, particularly for girls. However graphical examination suggested that a single model might be inadequate to describe both higher- and lower-intensity activities. Models using only lower-intensity activities close to the 4 METs threshold supported retention of the 3600 counts/minute cut point for both sexes.

Conclusions:

When restricting to lower-intensity activities only, these data do not provide sufficient evidence to change the previously established cut point of 3600 counts/minute to represent MVPA. However, further data and more sophisticated modeling techniques are required to confirm this decision.

Restricted access

James L. Farnsworth, Youngdeok Kim and Minsoo Kang

Background:

Disruptive sleeping patterns have been linked to serious medical conditions. Regular physical activity (PA) has a positive impact on health; however, few research have investigated the relationships between PA, body mass index (BMI), sedentary behaviors (SB), and sleep disorders (SD).

Methods:

Data from the 2005–2006 NHANES were analyzed for this study. Participants (N = 2989; mean age = 50.44 years) were grouped based upon responses to SD questions. Accelerometers were used to measure the average time spent in moderate or vigorous physical activity (MVPA) and SB. Multinomial logistic regression analyses were used to examine the associations between PA, SB, and SD after controlling for covariates and to explore potential moderation effects among common risk factors and the main study variables.

Results:

Among middle-aged adults, PA was significantly associated with SD [Wald χ2 (8) = 22.21; P < .001]. Furthermore, among adults in the highest tertile of SB, PA was significantly associated with SD [Wald χ2 (8) = 32.29; P < .001].

Conclusions:

These results indicate that middle-aged adults who are less active may have increased likelihoods of SD. It is important for health care professionals to continue developing methods for increasing PA to decrease the risk of SD.

Restricted access

Joel M. Schuldheisz and Hans van der Mars

This study examined the effects of active supervision on the moderate to vigorous physical activity (MVPA) levels of middle school students during fitness instruction. Students from four separate classes, characterized as “low activity students,” and their teacher participated in the study. Students’ MVPA levels during fitness instruction served as the target behavior. Two supervisory conditions were contrasted using a reversal design. Passive supervision was characterized by low rates of teacher interaction, such as prompting, encouragement, feedback, and movement. Active supervision consisted of teaching patterns that included higher rates of interactions with students and movement. Mean MVPA levels during passive condition were 49.7% while mean MVPA levels during active supervision were 68%. Findings point to a functional relationship between specific components of teachers’ supervisory efforts and students’ MVPA levels during fitness instruction. The importance of active supervision, within die context of holding students accountable for engaging in physical activity, is underscored by this study.