Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2010) 09, 490 - 498

Research article
Study of Day, Month and Season Pedometer-Determined Variability of Physical Activity of High School Pupils in The Czech Republic
Jana Pelclová1, , El Ansari Walid2, Jana Vašícková1
Author Information
1 Center for Kinanthropology Research, Faculty of Physical Culture, Palacky University, Olomouc, Czech Republic
2 Faculty of Sport, Health and Social Care, University of Gloucestershire, United Kingdom.

Jana Pelclová
✉ Center for Kinanthropology Research, Faculty of Physical Culture, Palacky University, Olomouc, Czech Republic
Email: jana.pelclova@upol.cz
Publish Date
Received: 17-04-2010
Accepted: 19-07-2010
Published (online): 01-09-2010
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ABSTRACT

Long-term day-to-day monitoring of physical activity (PA) has not been undertaken in adolescents despite PA declines rapidly during adolescence. This study monitored the school year-round pedometer-determined PA of pupils attending high school in the Czech Republic. We assessed their PA levels; appraised the school year-round variability of their PA; and, assessed the associations between their PA levels and weekdays/weekends; months; seasons; and physical education (PE) lessons at school. We observed the PA levels of 10 girls and 2 boys (aged 16.0 ± 0.7 years). Each pupil wore an unsealed pedometer (Omron HJ-105) on the right side of the waist continuously for one year, and recorded steps/day and daily behaviour (e.g. after-school PA, PE lesson) into an activity diary. In total, participants recorded step counts for 2,979 person- days (82.0% of a possible 3,628 person-days). We used the Missing Values Analysis EM function of SPSS to estimate step values that were missing from the dataset. The sample’s mean daily step count was 14,727 ± 6,612 steps/day, and repeated ANOVA showed differences in steps/day across the days of the week (p < 0.0001), months (p < 0.0001) and seasons (p < 0.0001). The mean number of steps/day for weekdays (15,733 ± 6,354) was higher (p < 0.0001) than weekends values (12,196 ± 6,574), and was higher for days with PE lesson (17,280 ± 5,988) than for days without PE lesson (15,569 ± 6,318) (p < 0.0001). The total contribution of PE class (90 minutes) to pupils’ daily PA was 10.0% additional steps per PE day. In conclusion, this study contributes to understanding the day-to-day PA variability of adolescent pupils across the school year. Across all months and seasons, pupils achieved notably more steps on weekdays than on weekends; and on PE days than on non-PE days. Research is required to assess these findings for school pupils in other countries.

Key words: Day-to-day variability, physical education, adolescents, school year, pedometer


           Key Points
  • Pedometer appears to be suitable for long-term monitoring of physical activity in adolescents.
  • Day of the week, month and season are significant factors in pedometer-determined day-to-day variability of physical activity of adolescent pupils.
  • Across all months and seasons, pupils achieved notably more steps on weekdays than on weekends, with Sunday being the least active day.
  • Regular PE lessons contribute considerably to the total physical activity levels in adolescent pupils. The increase in steps/day on days with PE is relatively constant throughout the school year regardless of month, season and the content of PE lessons.
 
 
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