The accuracy of self-reports of physical activity

Klesges, Robert C.; Eck, Linda H.; Mellon, Michael W.; Fulliton, William; Somes, Grant W.; Hanson, Cindy L.

doi:10.1249/00005768-199010000-00022

Cited by 238 publications

(158 citation statements)

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“…Subjective interpretation of the questions, LBP beliefs [33] and perception of the activity behavior can result in subjects either underestimating [34] or overestimating [35,36] their levels of physical activity. In general, people tend to overreport physical activity and underestimate sedentary pursuits such as watching television [37]. It is known that, although LBP patients state they are moderately or severely disabled and less active, they still perform activities on a rather normal level [9,10].…”

Section: Discussionmentioning

confidence: 99%

Physical fitness, rather than self-reported physical activities, is more strongly associated with low back pain: evidence from a working population

et al. 2011

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Introduction Physical activity is suggested to be important for low back pain (LBP) but a major problem is the limited validity of the measurement of physical activities, which is usually based on questionnaires. Physical fitness can be viewed as a more objective measurement and our question was how physical activity based on self-reports and objective measured levels of physical fitness were associated with LBP. Materials and methods We analyzed cross-sectional data of 1,723 police employees. Physical activity was assessed by questionnaire (SQUASH) measuring type of activity, intensity, and time spent on these activities. Physical fitness was based on muscular dynamic endurance capacity and peak oxygen uptake (VO 2 peak). Severe LBP, interfering with functioning, was defined by pain ratings C4 on a scale of 0-10. Results Higher levels of physical fitness, both muscular and aerobic, were associated with less LBP (OR: 0.54; 95% CI: 0.34-0.86, respectively, 0.59: 95%CI: 0.35-0.99). For self-reported physical activity, both a low and a high level of the total physical activity pattern were associated with an increase of LBP (OR: 1.52; 95%CI: 1.00-2.31, respectively, 1.60; 95%CI: 1.05-2.44). Conclusion These findings suggest that physical activity of an intensity that improves physical fitness may be important in the prevention of LBP.

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Section: Discussionmentioning

confidence: 99%

Physical fitness, rather than self-reported physical activities, is more strongly associated with low back pain: evidence from a working population

et al. 2011

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“…People tend to overestimate physical activity and to underestimate sedentary activity [Klesges et al, 1990]. These issues are particularly troublesome when attempting to apply self-report techniques to examine physical activity in people with MR.…”

Section: Self-reportsmentioning

confidence: 99%

Health‐promoting physical activity of adults with mental retardation

Stanish

Temple

Frey

2006

Ment. Retard. Dev. Disabil. Res. Rev.

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This literature review describes the physical activity behavior of adults with mental retardation consistent with the U.S. Surgeon General's recommendation of 30 minutes of moderate intensity physical activity on 5 or more days per week. The proportion of participants achieving this criterion ranges from 17.5 to 33%. These data are likely to be generous estimates of activity as individuals included in physical activity studies to date have been relatively young and healthy volunteers with mild to moderate limitations. Major sources of physical activity were walking and cycling for transport, chores and work, dancing, and Special Olympics. There is a pressing need to conduct studies using appropriately powered representative samples and to validate measures that assess physical activity less directly; including methodologies in which proxy respondents are used. Accurate information about existing patterns of behavior will enhance the development of effective strategies to promote physical activity among persons with mental retardation.

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“…Numerous methods have been used to measure objectively short-and long-term EE during PA under freeliving conditions. Such techniques included electronic motion sensors (7)(8)(9), heart rate recordings (10,11), doubly labeled water (12), investigator ratings (13), and activity questionnaires (14)(15)(16)(17). Each of these techniques has strengths and limitations as described elsewhere (16,(18)(19)(20)(21)(22).…”

Section: Introductionmentioning

confidence: 99%

Energy Expenditure Determined by Self‐Reported Physical Activity Is Related to Body Fatness

et al. 1999

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BUCHOWSKI, MACIEJ S., KAREN M. TOWNSEND, KONG Y. CHEN, SARI A. ACRA, AND MING SUN. Energy expenditure determined by self-reported physical activity is related to body fatness. Obes. Res. 1999;7:23-33. Objective: Activity self-reports are a commonly used tool in assessing daily physical activity (PA) and associated energy expenditure (EE). This study examined the effect of relative body fatness (%BF) on differences between self-reported and measured duration and associated EE in healthy adults. Research Methods and Procedures: Men and women(n = 115, age 38±9 years), ranging in %BF from 7.9% to 58.9%, spent two separate days (normal and exercise) in a whole-room indirect calorimeter where EE was measured. While in the room calorimeter, subjects reported the type, intensity, and duration of each performed PA. The Compendium of Physical Activity was used to calculate the energy cost of each reported activity. The EE of all selfreported activities (EE r ) was categorized into four intensity levels, synchronized, and compared with EE from the room ca'orimeter (EE m ) . Results: With increasing %BF, subjects significantly overestimated duration of more strenuous activities (~4.5), while underestimating moderate activities (2.5 to 4.4 metabolic equivalents (METs)). Misreporting of duration and/or intensity caused an overestimation or underestimation of PA-associated EE at these levels. Reported EE sleep was lower than measured EE sleep, although both had similar durations. As a result, total EE r was similar to EE m • Discussion: Individual variability of daily total PA and as- sociated EE generated from self-reports in adults is high, Persons with a higher %BF report duration and/or intensity of moderate to high levels of PA with lower accuracy than leaner individuals. We conclude using the Compendium of Physical Activity is not suitable for the accurate estimation of self-reported EE of AA in adults with a higher %BF.

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The accuracy of self-reports of physical activity

Cited by 238 publications

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Physical fitness, rather than self-reported physical activities, is more strongly associated with low back pain: evidence from a working population

Physical fitness, rather than self-reported physical activities, is more strongly associated with low back pain: evidence from a working population

Health‐promoting physical activity of adults with mental retardation

Energy Expenditure Determined by Self‐Reported Physical Activity Is Related to Body Fatness

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