scholarly journals Longitudinal changes in moderate‐to‐vigorous‐intensity physical activity in children and adolescents: A systematic review and meta‐analysis

2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Abdulaziz Farooq ◽  
Anne Martin ◽  
Xanne Janssen ◽  
Mathew G. Wilson ◽  
Ann‐Marie Gibson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Systematic Review ◽  
Children And Adolescents ◽  
Meta Analysis ◽  
Longitudinal Changes ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

scholarly journals Accuracy of Wearable Trackers for Measuring Moderate- to Vigorous-Intensity Physical Activity: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 3 (4) ◽  
pp. 346-357
Author(s):  
Jessica Gorzelitz ◽  
Chloe Farber ◽  
Ronald Gangnon ◽  
Lisa Cadmus-Bertram
Keyword(s):  
Physical Activity ◽  
Systematic Review ◽  
Meta Analysis ◽  
Physical Activity Behavior ◽  
The United States ◽  
Evidence Base ◽  
Cochrane Library ◽  
Physical Activity Guidelines ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

Background: The evidence base regarding validity of wearable fitness trackers for assessment and/or modification of physical activity behavior is evolving. Accurate assessment of moderate- to vigorous-intensity physical activity (MVPA) is important for measuring adherence to physical activity guidelines in the United States and abroad. Therefore, this systematic review synthesizes the state of the validation literature regarding wearable trackers and MVPA. Methods: A systematic search of the PubMed, Scopus, SPORTDiscus, and Cochrane Library databases was conducted through October 2019 (PROSPERO registration number: CRD42018103808). Studies were eligible if they reported on the validity of MVPA and used devices from Fitbit, Apple, or Garmin released in 2012 or later or available on the market at the time of review. A meta-analysis was conducted on the correlation measures comparing wearables with the ActiGraph. Results: Twenty-two studies met the inclusion criteria; all used a Fitbit device; one included a Garmin model and no Apple-device studies were found. Moderate to high correlations (.7–.9) were found between MVPA from the wearable tracker versus criterion measure (ActiGraph n = 14). Considerable heterogeneity was seen with respect to the specific definition of MVPA for the criterion device, the statistical techniques used to assess validity, and the correlations between wearable trackers and ActiGraph across studies. Conclusions: There is a need for standardization of validation methods and reporting outcomes in individual studies to allow for comparability across the evidence base. Despite the different methods utilized within studies, nearly all concluded that wearable trackers are valid for measuring MVPA.

scholarly journals Contribution of Walking to School to Individual and Population Moderate-Vigorous Intensity Physical Activity: Systematic Review and Meta-Analysis

2016 ◽  
Vol 28 (3) ◽  
pp. 353-363 ◽  
Author(s):  
Anne Martin ◽  
Paul Kelly ◽  
Jessica Boyle ◽  
Fenella Corlett ◽  
John J. Reilly
Keyword(s):  
Physical Activity ◽  
High School ◽  
Primary School ◽  
Full Text ◽  
Meta Analysis ◽  
Pooled Analysis ◽  
School Age Children ◽  
Intensity Physical Activity ◽  
Vigorous Intensity ◽  
Walking To School

Purpose:This study estimated the contribution of walking to/from school to objectively measured daily moderate-vigorous intensity physical activity (MVPA) in individuals and populations.Methods:MEDLINE, PsycINFO and SPORTDiscus were systematically searched up to February 2015. Two reviewers independently screened titles/abstracts/full-text articles, and assessed study quality.Results:Of 2430 records, 129 were eligible for full-text screening. Twelve studies met the inclusion criteria of reporting objectively obtained measures of MVPA (total and while walking to/from school) in children and adolescents. The weighted mean MVPA accumulated in walking to and from school was 17 min/day in primary school pupils (9 samples, n = 3422) and 13 min/day in high school pupils (4 samples, n = 2600). Pooled analysis suggested that walking to and from school contributed 23% and 36% of MVPA on schooldays in primary school age children and high school pupils, respectively. All included studies were of high methodological quality.Conclusions:Walking to and from school makes a meaningful contribution to individual schoolday MVPA for active commuters in western countries. Since schooldays represent only around half of all days, and prevalence of walking to school is low in many countries, the contribution of walking to school to population MVPA is probably low.

scholarly journals Do vigorous-intensity and moderate-intensity physical activities reduce mortality to the same extent? A systematic review and meta-analysis

2020 ◽  
Vol 6 (1) ◽  
pp. e000775
Author(s):  
Juan Pablo Rey Lopez ◽  
Angelo Sabag ◽  
Maria Martinez Juan ◽  
Leandro F M Rezende ◽  
Maria Pastor-Valero
Keyword(s):  
Physical Activity ◽  
Prospective Studies ◽  
Meta Analysis ◽  
Physical Activities ◽  
Total Physical Activity ◽  
Moderate Intensity ◽  
All Cause Mortality ◽  
Specific Mortality ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

ObjectiveTo examine whether vigorous-intensity physical activity confers additional reductions on all-cause and cause-specific mortality compared with moderate-intensity physical activity.DesignA systematic review (registered in PROSPERO CRD42019138995) and meta-analysis.Data sourcesThree electronic databases up to April 14 2020.Eligibility criteriaInclusion criteria were prospective studies that contained information about (1) moderate-intensity (3–5.9 metabolic equivalent tasks (METs)) and vigorous-intensity (≥6 METs) physical activities and (2) all-cause and/or cause-specific mortality. Exclusion criteria were prospective studies that (1) exclusively recruited diseased patients (eg, hypertensive patients and diabetics) or (2) did not account for total physical activity in their multivariable models (3) or did not adjust or exclude individuals with comorbidities at baseline or (4) used physically inactive participants as reference group.ResultsFive studies (seven cohorts using sex-specific results) were pooled into a meta-analysis. For all-cause mortality and controlling by total physical activity, vigorous-intensity physical activity (vs moderate) was not associated with a larger reduction in mortality (HR 0.95, 95% CI 0.83 to 1.09). After the exclusion of one study judged with critical risk of bias (Risk Of Bias in Non randomized Studies, ROBINS tool) from meta-analysis, results remained similar (HR 0.98, 95% CI 0.85 to 1.12). Due to the limited number of studies, meta-analyses for cancer and cardiovascular mortality were not performed.ConclusionsProspective studies suggest that, for the same total physical activity, both vigorous-intensity and moderate-intensity physical activities reduce all-cause mortality to the same extent. However, absence of evidence must not be interpreted as evidence of absence due to the existing methodological flaws in the literature.

Sign in / Sign up

Export Citation Format

Share Document