title: The Role of Physical Education Lessons and Recesses in School Lifestyle of Adolescents.
abstract: BACKGROUND
  This study investigates school lifestyle among adolescents in terms of physical activity (PA) structure: (1) adolescents participating in a physical education lesson (PEL) versus (2) aggregate recess time exceeding 60 minutes.
  
  
  METHODS
  The research was conducted in 24 secondary schools in the Czech Republic (boys N = 208, girls N = 433). For the whole day (1-3 days) participants wore the ActiTrainer accelerometer, which monitored PA, and heart rate. A total of 1122 school days were recorded.
  
  
  RESULTS
  Both boys and girls participating in a PEL reported significantly better results compared with nonparticipating individuals regarding all indicators of volume and intensity of school PA (SPA). In most SPA indicators, longer aggregate recess time (>60 minutes) had a statistically significant effect, particularly on the volume of SPA. The recommended 500 steps/hours for SPA was achieved by 83% of boys participating in PEL and 69% of girls. In contrast just 32% of nonparticipating boys and 31% of girls reached this level. With longer recess time the recommendation was met by 43% of boys (42% of girls) compared with 26% of boys (23% of girls) with shorter recess time.
  
  
  CONCLUSIONS
  An increase in SPA and an improved lifestyle in adolescents on school days are significantly supported more by PELs than by longer recess time.
authors.affiliation: Faculty of Physical Culture, Palacký University Olomouc, třída Míru 117, 77111 Olomouc, Czech Republic. karel.fromel@upol.cz.
authors.forename: Karel
authors.initials: K
authors.lastname: Frömel
authors.affiliation: Faculty of Physical Culture, Palacký University Olomouc, třída Míru 117, 77111 Olomouc, Czech Republic. zbynek.svozil@upol.cz.
authors.forename: Zbyněk
authors.initials: Z
authors.lastname: Svozil
authors.affiliation: Faculty of Physical Culture, Palacký University Olomouc, třída Míru 117, 77111 Olomouc, Czech Republic. frnatisek.chmelik@upol.cz.
authors.forename: František
authors.initials: F
authors.lastname: Chmelík
authors.affiliation: Faculty of Physical Culture, Palacký University Olomouc, třída Míru 117, 77111 Olomouc, Czech Republic. lukas.jakubec@upol.cz.
authors.forename: Lukáš
authors.initials: L
authors.lastname: Jakubec
authors.affiliation: Department of Physical Education, The Jerzy Kukuczka Academy of Physical Education, Ul. Mikolowska 72A, 40065 Katowice, Poland. d.groffik@awf.katowice.pl.
authors.forename: Dorota
authors.initials: D
authors.lastname: Groffik
mesh_terms: D061725:Accelerometry / Q000706:statistics & numerical data*; D000293:Adolescent; D000294:Adolescent Behavior; D000704:Analysis of Variance; D001481:Basal Metabolism; D018153:Czech Republic; D015444:Exercise / Q000502:physiology; D005260:Female; D019983:Guideline Adherence; D006291:Health Policy; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology; D010806:Physical Education and Training / Q000706:statistics & numerical data*; D011998:Recreation; D012574:Schools; D057185:Sedentary Behavior; D017678:Sex Distribution; D013334:Students
keywords: health education; physical education; recess; school physical activity; youth lifestyle