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WHO Guidelines on Physical Activity and Sedentary Behaviour. Geneva: World Health Organization; 2020.

Cover of WHO Guidelines on Physical Activity and Sedentary Behaviour

WHO Guidelines on Physical Activity and Sedentary Behaviour.

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B1EVIDENCE ON PHYSICAL ACTIVITY FOR ADULTS (18 TO UNDER 65 YEARS OF AGE)

Guiding Questions

B1.

What is the association between physical activity and health-related outcomes?

  1. Is there a dose response association (volume, duration, frequency, intensity)?
  2. Does the association vary by type or domain of physical activity?

Inclusion Criteria

Population: Adults 18 years of age and older

Exposure: Greater volume, duration, frequency or intensity of physical activity

Comparison: No physical activity or lesser volume, duration, frequency, or intensity of physical activity.

OutcomesImportance
All-cause and cause-specific mortalityCritical
Incidence of CVDCritical
Incidence of cancerCritical
Incidence of Type 2 DiabetesCritical
Adiposity/Prevention of weight gain/Body compositionCritical
Mental health outcomes (e.g. depressive symptoms, anxiety symptoms)Critical
Cognitive outcomes (e.g. dementia, cognition)Critical
Adverse eventsCritical
Sleep duration and qualityImportant
Incidence of hypertensionImportant
Health-related quality of lifeImportant

Abbreviations: CVD = cardiovascular disease; NA = not applicable; PA = physical activity

Evidence identified

Seventy-five reviews (published from 2017 to 2019) were initially identified that examined the association between physical activity and health-related outcomes among adults (175). However, 35 reviews were excluded from further evaluation given the study design, populations, exposures, or outcomes that were out-of-scope or other concerns regarding the quality or relevance of the review. Table B1.1 presents the reviews that were excluded and their reason for exclusion.

Table B1.2 presents the ratings for each remaining review according to all the AMSTAR 2 main domains. In general, the included reviews had many limitations in their design, execution, and reporting. Only two systematic reviews were rated as having high credibility based on the AMSTAR 2 instrument. Fifteen were rated as having moderate credibility, 11 were rated as having low credibility, and the remaining 9 were rated as having critically low credibility. Given concerns regarding the comprehensiveness and the validity of the results presented in reviews rated as having critically low credibility, they were not incorporated into the final Evidence Profiles. All 3 pooled cohort studies were rated as good quality according to the Newcastle-Ottawa Scale (Table B1.3).

Table B1.4 lists the 28 reviews and 3 pooled cohort studies that were included in the evidence profiles by outcome. Most of the included reviews searched for evidence through 2016 or 2017; very few reviews searched for evidence into 2018 or 2019. As a result, very few individual studies represented within the reviews were published in 2018 or 2019. Most reviews had narrow foci in terms of study designs, exposures (limited to specific types of physical activity), and outcomes. Extracted data for each included review is presented in Appendix 2.

Table B1.1Excluded Systematic Reviews, with Reasons for Exclusion

Author, YearReason for ExclusionRationale
Al Tunaiji 2019 (1)DesignIncludes no studies published after 2017
Amirfaiz 2019 (3)OutcomeOutcome (metabolic syndrome) out of scope
Banno 2018 (5)PopulationReview limited to persons with insomnia; not generalizable
Coenen 2018 (16)ExposureOccupational physical activity
Colpani 2018 (17)ExposureAny lifestyle factor, not physical activity independently
Del Pozo-Cruz 2018 (18)ExposureReplacing sedentary time
Fernandes 2018 (22)ExposureAcute exercise only
Flahr 2018 (23)PopulationReview limited to studies of shift workers; not generalizable
Fuezeki 2017 (24)DesignAnalysis of NHANES data only
Guo 2017 (27)ExposureAny cardiovascular health metric
Halloway 2017 (28)OutcomeMRI brain imaging
Herold 2019 (30)OutcomeRequired measures of functional or structural brain changes
Hussenoeder 2018 (32)DesignOverview-of-reviews
Igarashi 2018a (33)OutcomeContinuous blood pressure
Igarashi 2018b (34)OutcomeContinuous blood pressure
Jiang 2017 (35)PopulationReview limited to persons with insomnia; not generalizable
Lewis 2018 (37)OutcomeOutcome (zeitebers/circadian system time cues) out of scope
Lipnicki 2019 (38)DesignNot a systematic review
Liu 2018 (40)DesignPooled data from Asia consortium; study is included in the review by Blond (11)
Lopez-Valenciano 2019 (41)OutcomeContinuous blood pressure
Loprinzi 2018a (44)ExerciseAcute exercise
Loprinzi 2018c (42)PopulationMost studies conducted with rodents
Lowe 2019 (45)PopulationReview limited to persons with insomnia; not generalizable
Murphy 2019 (48)OutcomeContinuous blood pressure
Nordengen 2019 (49)OutcomeContinuous blood pressure
Oja 2018 (52)OutcomeContinuous blood pressure
Origua Rios 2017 (53)OutcomeResults not presented by study nor in format amendable to GRADE evaluation
Prince 2019 (56)RelevanceAim is to examine the prevalence of different types of PA according to various occupational types
Shepherd-Banigan 2017 (62)RelevanceOnly 3 new trials identified that examined the effects of yoga on the incidence of hot flashes among peri- and post-menopausal women
Smart 2019 (64)OutcomeContinuous blood pressure
Stringhini 2017 (67)DesignNot a systematic review
Viana 2019 (71)QualityStatement of concern published by journal to alert readers of uncertainty about the weight and significance reported by authors
Wang 2019 (72)PopulationReview limited to persons with active sleep disturbances or insomnia; not generalizable
Wewege 2018 (74)RedundancyReview by Andreato 2018 is more recent, more comprehensive, and better quality and includes all included studies by Wewege; similar results were found with both reviews.
Zhang 2018 (75)OutcomeContinuous blood pressure

Table B1.2Credibility Ratings (based on AMSTAR 2 (76))

Author, YearPICO1Apriori Methods2Study Design Selection3Lit Search Strategy4Study Selection5Data Extraction6Excluded Studies7Included Studies8RoB Assessment9Funding Sources10Statistical Methods11Impact of RoB12RoB Results13Heterogeneity14Publication Bias15COI16Overall Rating17
Amagasa 2018 (2)YYNPYNYPYYNNN/AN/ANYN/AYLow
Andreato 2019 (4)YPYNPYYYPYYYNYNYYNYModerate
Barredo 2017 (6)NNNNNYNNPYNN/AN/ANNN/ANCritically Low
Baumeister 2019 (7)YNNPYYYPYYYNYYYYYYModerate
Behrens 2019 (8)YPYNPYYYPYPYPYNYYYYYYModerate
Benke 2018 (9)YPYNPYNYPYPYYNYYYYYYModerate
Binkley 2019 (10)NNNNNNNYYNN/AN/ANNN/ANCritically Low
Blond 2019 (11)YPYNPYYNPYYYNYYYYYYModerate
Boyer 2019 (12)YNNNNNNYYNYYYNYNLow
Brasure 2018 (13)YYYPYYYYYYNN/AN/AYYN/AYHigh
Chastin 2019 (14)YYYPYYYNYPYNYYNNYYModerate
Cocchiara 2019 (15)NNNPYYYNNYNN/AN/ANNN/AYCritically Low
Dinu 2019 (19)YNNPYYYPYPYYNNYYYNYLow
Ekelund 2019 (20)YPYNPYNYPYYYNYNNNYYModerate
Engeroff 2018 (21)YNNPYYYPYYPYNN/AN/AYNN/AYModerate
Gordon 2017 (26)YPYNPYNNPYPYPYNYYYYYYLow
Gordon 2018 (25)YPYNPYNYNPYPYNYYYYYNLow
Hart 2019 (29)YNNNYYNPYPYNYYYYYYCritically Low
Hidayat 2019 (31)YPYNPYYYPYNNNYNNYYYCritically Low
Kovacevic 2018 (36)YPYNYYNPYYPYNN/AN/AYYN/AYModerate
Liu 2019 (39)YPYNPYYYPYPYYNYYYYYNModerate
Loprinzi 2018 (43)YNNPYNNNPYNNN/AN/ANYN/AYCritically Low
Maillard 2018 (46)NNNPYNNPYNNNNNNYNYCritically Low
Martinez-Dominguez 2018 (47)YPYNPYNNPYPYYNYYYYYYModerate
Northey 2018 (50)YPYNPYYYPYPYYNYYYYYYModerate
Paudel 2019 (54)YYNPYYYPYPYPYNNYYYYYLow
Perez-Lopez 2017 (55)YPYNPYYYPYPYYNYNNYYYModerate
Rathore 2017 (57)YNYPYNNNYYNYYYYNYLow
Robbins 2019 (58)YPYNPYYYPYPYPYNN/AN/ANYN/AYLow
Saeidifard 2019 (59)YNNPYYYPYYYNNNNNNYCritically Low
Schuch 2018 (61)YPYYYYNYYYNYYYYYYHigh
Schuch 2019 (60)YPYYPYYYYYPYNYYYYYYModerate
Stanmore 2017 (66)YNNPYYNNYYNYYYYYYLow
Stutz 2019 (68)YPYNPYYYNYYNYYYYYYModerate
Su 2019 (69)YPYNPYYNPYPYNNYNNYYYCritically Low
Sultana 2019 (70)YNNPYYYNYPYNYNYYYYLow
Wang 2017 (73)YNYPYNYNYYNYNYYNNLow

Abbreviations: COI = conflict of interest; N = no; N/A = not applicable; PICO = population, intervention, comparator, outcome; PY = partial yes; RoB = risk of bias; Y = yes

1

Did the research questions and inclusion criteria for the review include the components of PICO?

2

Did the report of the review contain an explicit statement that the review methods were established prior to the conduct of the review and did the report justify any significant deviations from the protocol?

3

Did the review authors explain their selection of the study designs for inclusion in the review?

4

Did the review authors use a comprehensive literature search strategy?

5

Did the review authors perform study selection in duplicate?

6

Did the review authors perform data extraction in duplicate?

7

Did the review authors provide a list of excluded studies and justify the exclusions?

8

Did the review authors describe the included studies in adequate detail?

9

Did the review authors use a satisfactory technique for assessing the risk of bias (RoB) in individual studies that were included in the review?

10

Did the review authors report on the sources of funding for the studies included in the review?

11

If meta-analysis was performed did the review authors use appropriate methods for statistical combination of results?

12

If meta-analysis was performed, did the review authors assess the potential impact of RoB in individual studies on the results of the meta-analysis or other evidence synthesis?

13

Did the review authors account for RoB in individual studies when interpreting/ discussing the results of the review?

14

Did the review authors provide a satisfactory explanation for, and discussion of, any heterogeneity observed in the results of the review?

15

If they performed quantitative synthesis did the review authors carry out an adequate investigation of publication bias (small study bias) and discuss its likely impact on the results of the review?

16

Did the review authors report any potential sources of conflict of interest, including any funding they received for conducting the review?

17

Shea et al. 2017. AMSTAR 2: a critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both.

Table B1.3Quality Ratings of Included Pooled Cohort Studies (based on Newcastle-Ottawa scale (77))

Author, YearRepresentativeness of the exposed cohortSelection of the non-exposed cohortAscertainment of exposureOutcome of interest was not present at start of studyBias in selection of the exposed cohortComparability of cohorts on the basis of the design or analysisBias due to confoundingAssessment of outcomeWas follow-up long enough for outcome to occurAdequacy of follow-up of cohortsBias due to outcome ascertainmentQuality Rating
O’Donovan 2017 (51)Truly representative of the target populations of the corresponding countriesDrawn from the same community as the exposed cohortStructured interviewYesLowControlled foo age, sex, smoking, total cholesterol, SBP, BMI, longstanding illness, and SESLowRecord linkageYesNo statementLowGood
Siahpush 2019 (63)Truly representative of the civilian noninstitutional population of the USDrawn from the same community as the exposed cohortStructured interviewYesLowControlled for BMI, alcohol consumption, presence of chronic condition, sex, age, poverty status, education, home ownership, marital status, race/ethnicity, nativity, and survey yearLowRecord linkageYesSubjects lost to follow up unlikely to introduce biasLowGood
Stamatakis 2017 (65)Truly representative of the target populations of the corresponding countriesDrawn from the same community as the exposed cohortStructured interviewYesLowAnalysis controlled for BMI, age, educational attainment, presence of longstanding illness, weekly frequency of alcohol consumption, smoking habits, psychological distress/depression, number of servings of fruit and vegetablesLowRecord linkageYesNo statementLowGood

Table B1.4Systematic Reviews Assessed, by Author

Outcomes
Author, YearAll-cause mortalityCVD mortalityIncidence of CVDIncidence of cancerIncidence of Type 2 DiabetesAdiposity-related outcomesMental health-related outcomesCognitive functionSleepIncidence of HYPHealth-related QOLLast Search DateCredibility/Quality
Amagasa 2018 (2)Jan-2017Low
Andreato 2019 (4)May-2018Moderate
Barredo 2017 (6)Nov-2015Critically Low
Baumeister 2019 (7)Aug-2018Moderate
Behrens 2019 (8)Mar-2018Moderate
Benke 2018 (9)July-2017Moderate
Binkley 2019 (10)Jan-2015Critically Low
Blond 2019 (11)Mar-2019Moderate
Boyer 2019 (12)Jun-2016Low
Brasure 2018 (13)Jul-2017High
Chastin 2019 (14)Feb-2018Moderate
Cocchiara 2019 (15)Feb-2017Critically Low
Dinu 2019 (19)Feb-2018Low
Ekelund 2019 (20)Jul-2018Moderate
Engeroff 2018 (21)Nov-2017Moderate
Gordon 2017 (26)Feb-2017Low
Gordon 2018 (25)Aug-2017Low
Hart 2019 (29)Dec-2017Critically Low
Hidayat 2019 (31)Jul-2018Critically Low
Kovacevic 2018 (36)Jun-2016Moderate
Liu 2019 (39)Aug-2018Moderate
Loprinzi 2018 (43)Sep-2017Critically Low
Maillard 2018 (46)Jul-2017Critically Low
Martinez-Dominguez 2018 (47)Jul-2017Moderate
Northey 2018 (50)Nov-2016Moderate
O’Donovan 2017a (51)NAGood quality
Paudel 2019 (54)Mar-2018Low
Perez-Lopez 2017 (55)Jun-2017Low
Rathore 2017 (57)Dec-2016Low
Robbins 2019 (58)Sep-2018Low
Saeidifard 2019 (59)Sep-2017Critically Low
Schuch 2018 (61)Oct-2017High
Schuch 2019 (60)Oct-2018Moderate
Siahpush 2019a (63)NAGood quality
Stamatakis 2017a (65)NAGood quality
Stanmore 2017 (66)Jan-2017Low
Stutz 2019 (68)Jun-2017Moderate
Su 2019 (69)Jul-2018Critically Low
Sultana 2019 (70)Jun-2019Low
Wang 2017 (73)Jan-2015Low
a

Not a systematic review. Pooled cohort analysis.

B. Adults

B.1. Physical Activity

Questions: What is the association between physical activity and health-related outcomes? Is there a dose response association (volume, duration, frequency, intensity)? Does the association vary by type or domain of PA?

Population: Adults 18 years of age and older

Exposure: Greater volume, duration, frequency, or intensity of physical activity

Comparison: No physical activity or lesser volume, duration, frequency, or intensity of physical activity

Table B.1.a. All-cause mortality: Association between physical activity and all-cause mortality among adults (in alphabetical order by author) (PDF, 205K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.b. CVD mortality: Association between physical activity and CVD mortality among adults (in alphabetical order by author) (PDF, 117K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.c. CVD incidence: Association between physical activity and CVD incidence among adults (in alphabetical order by author) (PDF, 70K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.d. Cancer incidence: Association between physical activity and cancer incidence among adults (in alphabetical order by author) (PDF, 76K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.e. Type 2 diabetes incidence: Association between physical activity and Type 2 diabetes incidence among adults (PDF, 67K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.e. Adiposity-related outcomes: Association between physical activity and measures of adiposity among adults, by comparison and author (PDF, 93K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.f. Mental health outcomes: Association between physical activity and measures of mental health among adults, by comparison and author (PDF, 85K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.g. Cognitive function outcomes: Association between physical activity and measures of cognitive function among adults (PDF, 84K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.h. Adverse events (PDF, 47K)

Outcome-specific AMSTAR 2 summary rating of the included systematic reviews

Author, YearPECO1A priori Methods2Study Design Selection3Search Strategy4Study Selection5Data Extraction6Excluded Studies7Included Studies8RoB Assess-ment9Funding Sources10Statistical Methods11Impact of RoB12RoB Results13Heterogeneity14Publication Bias15COI16Overall Rating17
Injury
Borel, 2019 (82)YPYNPYPYPYPYNYNPYPYPYYYPYLow
Damsted, 2018 (83)YNPYYPYPYPYYYNN/AN/AN/AN/AN/APYLow
Johnston, 2018 (84)PYYPYYPYPYPYYYYN/AN/AN/AN/AN/APYLow
Lopes, 2012 (85)YNYYPYNPYPYYYN/AN/AN/AN/AN/AYLow
Neubauer, 2016 (86)PYNNPYPYNNNNNN/AN/AN/AN/AN/APYCritically Low
Nielsen, 2012 (87)YNPYYPYNYPYYNN/AN/AN/AN/AN/ANLow
Qu, 2014 (88)YNPYPYYPYNYPYYPYPYNNYYLow
Saragiotto, 2014 (89)PYNYPYPYPYPYPYYYN/AN/AN/AN/AN/AYLow
Sobhani, 2013 (90)PYNNYYNYYYYN/AN/AN/AN/AN/APYLow
Tonoli, 2010 (91)PYNNPYNNNNPYNN/AN/AN/AN/AN/ANCritically Low
Van der Worp, 2015 (92)PYNPYYPYYNYYYN/AN/AN/AN/AN/AYLow
Videbaek, 2015 (93)PYNPYYPYNPYPYYYPYYYYPYYLow
Osteoarthritis
Alentorn-Geli, 2017 (94)PYNPYYPYPYPYYYYYNPYYNPYLow
Timmins, 2017 (95)YYPYYPYPYPYYYYYYYYYYModerate
Erectile Dysfunction
Sommer, 2016 (96)PYNNNNNNPYNNN/AN/AN/AN/AN/APYCritically Low

Abbreviations: COI = conflict of interest; N = no; PECO = population, exposure, comparator, outcome; PY = partial yes; RoB = risk of bias; Y = yes

1

Did the research questions and inclusion criteria for the review include the components of PECO?

2

Did the report of the review contain an explicit statement that the review methods were established prior to the conduct of the review and did the report justify any significant deviations from the protocol?

3

Did the review authors explain their selection of the study designs for inclusion in the review?

4

Did the review authors use a comprehensive literature search strategy?

5

Did the review authors perform study selection in duplicate?

6

Did the review authors perform data extraction in duplicate?

7

Did the review authors provide a list of excluded studies and justify the exclusions?

8

Did the review authors describe the included studies in adequate detail?

9

Did the review authors use a satisfactory technique for assessing the risk of bias (RoB) in individual studies that were included in the review?

10

Did the review authors report on the sources of funding for the studies included in the review?

11

If meta-analysis was performed did the review authors use appropriate methods for statistical combination of results?

12

If meta-analysis was performed, did the review authors assess the potential impact of RoB in individual studies on the results of the meta-analysis or other evidence synthesis?

13

Did the review authors account for RoB in individual studies when interpreting/ discussing the results of the review?

14

Did the review authors provide a satisfactory explanation for, and discussion of, any heterogeneity observed in the results of the review?

15

If they performed quantitative synthesis did the review authors carry out an adequate investigation of publication bias (small study bias) and discuss its likely impact on the results of the review?

16

Did the review authors report any potential sources of conflict of interest, including any funding they received for conducting the review?

17

Shea et al. 2017. AMSTAR 2: a critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both. (81) For each Yes, 1.0 point was given, and for each Partial Yes, 0.5 points was given. The total sum was then divided by the number of questions answered (i.e. 11 or 16). The rating ranges were described in the Methods above.

Supplementary file 2. GRADE: Grading the body of evidence (PDF, 179K)

Table B.1.i. Sleep outcomes: Association between physical activity and sleep outcomes among adults (PDF, 69K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.j. Incidence of hypertension: Association between physical activity and incidence of hypertension among adults (PDF, 61K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.k. Health-related quality of life: Association between physical activity and measures of HRQOL among adults (PDF, 56K)

See the Supplementary materials for description of evidence of US PAGAC by outcome

Table B.1.l. Occupational physical activity domain (PDF, 66K)

Criterion-specific AMSTAR 2 credibility rating, over-all rating score, overall rating, for each included review. See supplementary material 7 for all considerations

Author, YearPECO1A-priori Methods2Study Design Selection3Search Strategy4Study Selection5Data Extraction6Excluded Studies7Included Studies8RoB Assess-ment9Funding Sources10Statistical Methods11Impact of RoB12RoB Results13Heterogeneity14Publication Bias15COI16Rating score17Overall Rating18
Samitz 2011YesNoYesYesPYPYYesYesNoYesYesYesNoPYYesYes0.71Low
Coenen 2018YesYesYesYesPYPYYesYesYesYesYesNoYesNoYesYes0.78Moderate
Wendel Vos 2004YesNoPYNoNoYesNoYesYesNoYesYesYesYesYesNo0.59Low
Jian Li 2013YesNoYesPYNoNoNoYesNoNoPYNoNoNoPYYes0.34Critically low
Sattelmair 2011YesNoYesPYPYPYPYYesNoYesYesNoNonoYesYes0.56Low
Wolin 2009YesNoYesPYPYNoNoPYNoNoPYPYPYPYYesNo0.41Critically low
Mahmood, 2017YesYesYesPYPYPYPYYesNoNoYesNoNoPYYesYes0.59Low
Boyle 2012YesNoYesPYPYPYPYYesYesYesYesYesYesPYYesYes0.78Moderate
Samad 2005YesNoYesPYNoNoNoYesNoNoYesNoNoNoNoNo0.28Critically low
Robsahm 2013YesNoYesPYNoNoNoYesPYNoYesYesYesYesNoYes0.56Low
Wu Y, 2013YesNoYesPYPYPYNoYesNoNoYesNoNoYesYesPY0.5Low
Pizot 2016YesNoYesPYPYNoNoYesNoYesNonoNoYesYesYes0.5Low
Chen X 2019YesNoYesPYPYPYNoYesYesYesYesN/AN/AYesYesYes0.75Moderate
Voskuil 2007YesNoYesNoNoYesNoYesYesYesYesNoNoPYYesNo0.53Low
Schmid 2015YesNoYesPYNoPYNoYesYesNoYesYesYesYesYesYes0.69Low
Vermaete 2013YesNoYesPYNoYesPYYesYesYesYesNoNoPYNoYes0.56Low
Singh 2014YesYesYesPYYesPYNoYesYesYesYesYesPYPYYesYes0.75Moderate
Psaltopoulou 2015YesNoYesPYPYPYPYYesYesNoYesNoNoPYYesYes0.81Moderate
Chen Y 2014YesNoYesPYPYPYPYYesYesYesYesYesYesNoYesYes0.69Low
Behrens 2014YesNoYesYesNoNoNoYesYesNoYesYesPYPYNoNo0.5Low
Behrens, 2013YesnoYesYesNoNoPYYesYesNoYesYesNoYesYesno0.59Low
Shephard 2016YesNoYesPYNoNoNoYesNoYesN/AN/AN/AN/AN/AYes0.5Low
Krstev 2019YesNoYesPYNonoPYYesnoYesNONoNoPYnoYes0.41Critically low
Benke, 2018YesNoYesPYNoPYPYYesYesYesYesYesNoPYYesYes0.69Low
Shephard, 2017YesNoYesPYNoNoNoYesNoYesN/AN/AN/AN/ANoYes0.5Low
Liu 2011YesNoYesYesNoYesPYYesYesYesYesYesYesPYYesYes0.81Moderate
O Rorke, 2010YesNoYesYesPYPYNoNoNoYesYesNoNoPYYesNo0.41Critically low
Bao 2008YesNoYesPYNoNoPYYesNoYesYesNoPYNoYesYes0.53Low
Keimling 2014YesNoYesPYPYNoPYYesNoNoYesNoNoYesYesNo0.47Critically low
Aune 2015YesNoYesYesNoNoYesYesYesYesYesPYPYYesYesYes0.75Moderate
McWilliams 2011YesNoYesYesNoPYPYYesYesYesNoNoNoNoNoYes0.5Low
Gignac 2019YesNoYesYesYesNoNoYesYesYesN/AN/AN/AN/ANono0.58Low
Palmer 2012YesNoNoPYNoNoNoYesYesYesN/AN/ANoNoNono0.32Critically low
White 2017YesYesYesYesYesYesPYYesYesYesYesPYYesPYPYYes0.88Moderate
Yang B, 2018YesNoYesPYPYNoNoYesNoPYYesNoNoYesYesNo0.5Low
Huai 2013YesNoYesPYNoPYPYYesYesYesYesNoNoYesYesno0.59Low

Abbreviations: COI = conflict of interest; PICO = population, intervention, comparator, outcome; PY = partial yes; RoB = risk of bias

1

Did the research questions and inclusion criteria for the review include the components of PICO?

2

Did the report of the review contain an explicit statement that the review methods were established prior to the conduct of the review and did the report justify any significant deviations from the protocol?

3

Did the review authors explain their selection of the study designs for inclusion in the review?

4

Did the review authors use a comprehensive literature search strategy?

5

Did the review authors perform study selection in duplicate?

6

Did the review authors perform data extraction in duplicate?

7

Did the review authors provide a list of excluded studies and justify the exclusions?

8

Did the review authors describe the included studies in adequate detail?

9

Did the review authors use a satisfactory technique for assessing the risk of bias (RoB) in individual studies that were included in the review?

10

Did the review authors report on the sources of funding for the studies included in the review?

11

If meta-analysis was performed did the review authors use appropriate methods for statistical combination of results?

12

If meta-analysis was performed, did the review authors assess the potential impact of RoB in individual studies on the results of the meta-analysis or other evidence synthesis?

13

Did the review authors account for RoB in individual studies when interpreting/ discussing the results of the review?

14

Did the review authors provide a satisfactory explanation for, and discussion of, any heterogeneity observed in the results of the review?

15

If they performed quantitative synthesis did the review authors carry out an adequate investigation of publication bias (small study bias) and discuss its likely impact on the results of the review?

16

Did the review authors report any potential sources of conflict of interest, including any funding they received for conducting the review?

17

This score is based on the following calculation (Yes=1point, PY=0.5 point). Take the total amount of points and divide these the number of questions answered.

17

Shea et al. 2017. AMSTAR 2: a critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both (76).

1.0. All-cause mortality (PDF, 89K)

Population: Adults (aged 18–64 years)

Exposure: Duration, frequency and/or intensity of OPA, or a compositional score reflecting total volume of OPA.

Comparison: No OPA, or a lesser duration, frequency and/or intensity, no or a smaller compositional score of total volume of OPA.

Outcome: All-cause mortality.

2.0. Cardio-vascular disease (PDF, 100K)

3.0. Cancer (PDF, 233K)

4.0. Diabetes Mellitus type 2 (PDF, 88K)

Population: Adults (aged 18–64 years)

Exposure: Duration, frequency and/or intensity of OPA, or a compositional score reflecting total volume of OPA.

Comparison: No OPA, or a lesser duration, frequency and/or intensity, no or a smaller compositional score of total volume of OPA.

Outcome: Diabetes type 2

5.0. Osteoarthritis (PDF, 92K)

Population: Adults (aged 18–64 years)

Exposure: Duration, frequency and/or intensity of OPA, or a compositional score reflecting total volume of OPA.

Comparison: No OPA, or a lesser duration, frequency and/or intensity, no or a smaller compositional score of total volume of OPA.

Outcome: Osteoarthritis

6.0. Mental Health (PDF, 85K)

Population: Adults (aged 18–64 years)

Exposure: Duration, frequency and/or intensity of OPA, or a compositional score reflecting total volume of OPA.

Comparison: No OPA, or a lesser duration, frequency and/or intensity, no or a smaller compositional score of total volume of OPA.

Outcome: Osteoarthritis

7.0. Sleep quality and/or duration (PDF, 89K)

Population: Adults (aged 18–64 years)

Exposure: Duration, frequency and/or intensity of OPA, or a compositional score reflecting total volume of OPA.

Comparison: No OPA, or a lesser duration, frequency and/or intensity, no or a smaller compositional score of total volume of OPA.

Outcome: Sleep quality/and or duration

8.0. Hypertension (PDF, 85K)

Population: Adults (aged 18–64 years)

Exposure: Duration, frequency and/or intensity of OPA, or a compositional score reflecting total volume of OPA.

Comparison: No OPA, or a lesser duration, frequency and/or intensity, no or a smaller compositional score of total volume of OPA.

Outcome: Hypertension

9.0. Abbreviation list (PDF, 44K)

Data Extractions of Included Evidence (in alphabetical order by author)

Download PDF (227K)

References

1.
Al Tunaiji H, Davis JC, Mansournia MA, Khan KM. Population attributable fraction of leading non-communicable cardiovascular diseases due to leisure-time physical inactivity: A systematic review. BMJ Open Sport Exerc Med. 2019/06/14 ed2019. p. e000512. [PMC free article: PMC6539142] [PubMed: 31191969]
2.
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