Evidence map›Paper›PMID 27843758›Full record

ArticlePreventive medicine reports2016

Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days.

Hannah L Brooke, Andrew J Atkin, Kirsten Corder, Soren Brage, Esther Mf van Sluijs

Abstract read
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In one paragraph

Article in Preventive medicine reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Article
  4. Total and temporal patterning of physical activity in adolescents and associations with mental wellbeing.The international journal of behavioral nutrition and physical activity · 2024
    Article
  5. Article
  6. Article
  7. Observational
  8. Article
  9. Article
  10. Children's moderate-to-vigorous physical activity on weekdays versus weekend days: a multi-country analysis.The international journal of behavioral nutrition and physical activity · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Changes in volume and bouts of physical activity and sedentary time across early childhood: a longitudinal study.The international journal of behavioral nutrition and physical activity · 2019
    Article
  15. Article
  16. Review
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Hannah L BrookeMRC Epidemiology Unit & Centre for Diet and Activity Research (CEDAR), University of Cambridge, School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK.
Andrew J AtkinMRC Epidemiology Unit & Centre for Diet and Activity Research (CEDAR), University of Cambridge, School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK.
Kirsten CorderMRC Epidemiology Unit & Centre for Diet and Activity Research (CEDAR), University of Cambridge, School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK.
Soren BrageMRC Epidemiology Unit & Centre for Diet and Activity Research (CEDAR), University of Cambridge, School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK.
Esther Mf van SluijsMRC Epidemiology Unit & Centre for Diet and Activity Research (CEDAR), University of Cambridge, School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK.

Funding

Medical Research Council MC_UP_1001/2Medical Research Council MC_UU_12015/3Medical Research Council MC_UU_12015/7Medical Research Council MR/K023187/1
6 · The paper itself

Abstract

Understanding how physical activity (PA) patterns vary within and between days may guide PA promotion in young people. We aimed to 1) describe and compare the frequency (bouts/day) and duration (min/bout) of bouts of moderate-to-vigorous intensity PA (MVPA) on weekdays vs. weekends and in-school vs. out-of-school, and 2) assess associations of bout frequency and duration in these time-segments with overall PA. We used cross-sectional accelerometer data from 2737 children (aged 6-19 years) in the United States National Health and Nutrition Examination Survey (NHANES) 2003-2006. A bout was defined as MVPA (≥ 2000 counts per minute [cpm]) lasting ≥ 3 min. Adjusted Wald tests were used to assess differences in bout characteristics between time-segments. Linear regression was used to examine the association of time-segment specific bout characteristics with daily minutes of MVPA and PA volume (average cpm). Bout frequency was higher on weekdays than weekends (median [IQR] 4.3 [2.2-7.2] vs. 3.0 [1.0-6.5] bouts/day, p < 0.001); however, bout duration did not differ (4.7 [4.0-5.7] vs. 4.5 [3.7-5.8] min/bout, p = 0.33). More bouts were accumulated out-of-school compared with in-school (2.2 [1.0-4.0] vs. 1.8 [0.8-3.2] bouts/day, p < 0.001), but bout duration was similar (4.7 [3.8-5.8] vs. 4.5 [3.8-5.7] min/bout, p = 0.158). For all time-segments, the frequency and duration of bouts of MVPA were independently and positively associated with overall MVPA and PA volume. In conclusion, the characteristics of children's PA vary within and between days; accounting for this in intervention design may improve future interventions. However, increasing bout frequency or duration in any time-segment may be beneficial for overall PA.

Indexed as

AccelerometryAdolescentsBoutsChildrenIntervention designPatternsPhysical activityTime-segments

Identifiers

PMID27843758
PMCPMC5107648

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.