Brad Schoenfeld, MS, CSCS, CSPS, NSCA-CPT
http://www.nsca.com/Education/Videos/What-is-EPOC-and-Why-is-it-Useful-for-Fat-Loss/
terça-feira, 28 de maio de 2013
The Impact of Physical Education on Obesity among Elementary School Children
John Cawley
3M24 Martha Van Rensselaer Hall Cornell University
Ithaca, NY 14853
USA
E-mail: jhc38@cornell.edu
3M24 Martha Van Rensselaer Hall Cornell University
Ithaca, NY 14853
USA
E-mail: jhc38@cornell.edu
John Cawley
Cornell University and IZA
David Frisvold
Emory University
Chad Meyerhoefer
Lehigh University
In response to the dramatic rise in childhood obesity, the Centers for Disease Control (CDC) and other organizations have advocated increasing the time that elementary school children spend in physical education (PE) classes. However, little is known about the effect of PE on child weight. This paper measures that effect by instrumenting for child PE time with state policies, using data from the Early Childhood Longitudinal Study, Kindergarten Cohort (ECLS-K) for 1998-2004. Results from IV models indicate that PE lowers BMI z-score and reduces the probability of obesity among 5th graders (in particular, boys), while the instrument is insufficiently powerful to reliably estimate effects for younger children. This represents some of the first evidence of a causal effect of PE on youth obesity, and thus offers at least some support to the assumptions behind the CDC recommendations. We find no evidence that increased PE time crowds out time in academic courses or has spillovers to achievement test scores.
Cornell University and IZA
David Frisvold
Emory University
Chad Meyerhoefer
Lehigh University
In response to the dramatic rise in childhood obesity, the Centers for Disease Control (CDC) and other organizations have advocated increasing the time that elementary school children spend in physical education (PE) classes. However, little is known about the effect of PE on child weight. This paper measures that effect by instrumenting for child PE time with state policies, using data from the Early Childhood Longitudinal Study, Kindergarten Cohort (ECLS-K) for 1998-2004. Results from IV models indicate that PE lowers BMI z-score and reduces the probability of obesity among 5th graders (in particular, boys), while the instrument is insufficiently powerful to reliably estimate effects for younger children. This represents some of the first evidence of a causal effect of PE on youth obesity, and thus offers at least some support to the assumptions behind the CDC recommendations. We find no evidence that increased PE time crowds out time in academic courses or has spillovers to achievement test scores.
http://anon-ftp.iza.org/dp6807.pdf
Subscrever:
Mensagens (Atom)