Criterion Validity of the activPAL Activity Monitor for Sedentary and Physical Activity Patterns in People Who Have Rheumatoid Arthritis

Larkin, Louise; Nordgren, Birgitta; Purtill, Helen; Brand, Charles J.; Fraser, Alexander; Kennedy, Norelee

doi:10.2522/ptj.20150281

Cited by 33 publications

(40 citation statements)

References 27 publications

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“…Operational definitions of a step were provided in 6% (n = 5) of the studies. 42,50,54,60,74 For contextual purposes, we have included other relevant or common definitions, including those provided by the CTA, 9 Merriam-Webster Dictionary, 91 and Oxford English Dictionary. 92 These 8-step definitions are reported in Supplementary Material 3 (available online).…”

Section: Catalog Of Study Methodologiesmentioning

confidence: 99%

Toward Harmonized Treadmill-Based Validation of Step-Counting Wearable Technologies: A Scoping Review

Moore¹,

McCullough²,

Aguiar³

et al. 2020

Journal of Physical Activity and Health

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Background: The authors conducted a scoping review as a first step toward establishing harmonized (ie, consistent and compatible), empirically based best practices for validating step-counting wearable technologies. Purpose: To catalog studies validating step-counting wearable technologies during treadmill ambulation. Methods: The authors searched PubMed and SPORTDiscus in August 2019 to identify treadmill-based validation studies that employed the criterion of directly observed (including video recorded) steps and cataloged study sample characteristics, protocol details, and analytical procedures. Where reported, speed- and wear location–specific mean absolute percentage error (MAPE) values were tabulated. Weighted median MAPE values were calculated by wear location and a 0.2-m/s speed increment. Results: Seventy-seven eligible studies were identified: most had samples averaging 54% (SD = 5%) female and 27 (5) years of age, treadmill protocols consisting of 3 to 5 bouts at speeds of 0.8 (0.1) to 1.6 (0.2) m/s, and reported measures of bias. Eleven studies provided MAPE values at treadmill speeds of 1.1 to 1.8 m/s; their weighted median MAPE values were 7% to 11% for wrist-worn, 1% to 4% for waist-worn, and ≤1% for thigh-worn devices. Conclusions: Despite divergent study methodologies, the authors identified common practices and summarized MAPE values representing device step-count accuracy during treadmill walking. These initial empirical findings should be further refined to ultimately establish harmonized best practices for validating wearable technologies.

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Section: Catalog Of Study Methodologiesmentioning

confidence: 99%

Toward Harmonized Treadmill-Based Validation of Step-Counting Wearable Technologies: A Scoping Review

Moore¹,

McCullough²,

Aguiar³

et al. 2020

Journal of Physical Activity and Health

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“…The ActivPAL uses accelerometer-derived information to determine time spent sitting/lying, standing and stepping and is validated in patients with RA. 17 The participants wore the monitor 24 hours per day for 7 days at baseline and by end of intervention, and recorded their daily sleeping time to separate sleep from waking sitting/lying time.…”

Section: Methodsmentioning

confidence: 99%

The efficacy of motivational counselling and SMS reminders on daily sitting time in patients with rheumatoid arthritis: a randomised controlled trial

et al. 2017

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ObjectivesThe aim of this report is to investigate the efficacy of an individually tailored, theory-based behavioural intervention for reducing daily sitting time, pain and fatigue, as well as improving health-related quality of life, general self-efficacy, physical function and cardiometabolic biomarkers in patients with rheumatoid arthritis (RA).MethodsIn this randomised controlled trial 150 patients with RA were randomised to an intervention or a no-intervention control group. The intervention group received three individual motivational counselling sessions and short message service or text messages aimed at reduction of sedentary behaviour during the 16-week intervention period. Primary outcome was change in daily sitting time measured objectively by ActivPAL. Secondary outcomes included change in pain, fatigue, physical function, general self-efficacy, quality of life, blood pressure, blood lipids, haemoglobin A1c, body weight, body mass index, waist circumference and waist–hip ratio.Results75 patients were allocated to each group. Mean reduction in daily sitting time was −1.61 hours/day in the intervention versus 0.59 hours/day increase in the control group between-group difference −2.20 (95% CI −2.72 to −1.69; p<0.0001) hours/day in favour of the intervention group. Most of the secondary outcomes were also in favour of the intervention.ConclusionAn individually tailored, behavioural intervention reduced daily sitting time in patients with RA and improved patient-reported outcomes and cholesterol levels.Trial registration numberNCT01969604; Results.

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“…These devices are typically worn on the front of the thigh, and use accelerometer-derived information regarding thigh position (towards gravity) to determine posture classification (i.e.,time spent sitting/lying/standing). [56]. Still, it is important to recognise that with the application of posture sensors, sedentary energy expenditure is inferred indirectly based on the assumed energy cost of sitting/lying (i.e., ≤1.5 METS) [46].…”

Section: Objective Methodsmentioning

confidence: 99%

“…However, its validity for quantifying step count and the number of sedentary time interruptions has been queried (i.e., underestimation by 26% and 36%, respectively) [56]. The validity of the Sensewear Armband (SWA) has also been examined, with data indicating this device to underestimate sedentary time in RA (as computed using manufacturer-derived proprietary algorithms) when compared with energy expenditure assessed via indirect calorimetry [61].…”

Section: Application and Validity Of Sedentary Behaviour Measurement mentioning

confidence: 99%

Sedentary behaviour in rheumatoid arthritis: definition, measurement and implications for health

et al. 2017

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Rheumatoid Arthritis (RA) is a chronic autoimmune disease characterised by high gradeinflammation, and associated with elevated cardiovascular risk, rheumatoid-cachexia and functional impairment. Sedentary behaviour is linked to heightened inflammation, and is highly pervasive in RA -likely as a result of compromised physical function and persistent fatigue. This high sedentarity may exacerbate the inflammatory process in RA, and hold relevance for disease-related outcomes. The aim of this narrative review is to provide an overview of the definition, measurement and health relevance of sedentary behaviour in the context of RA. Contradictions are highlighted with regards to the manner in which sedentary behaviour is operationalized, and the significance of sedentary behaviour physiology for disease-outcomes in RA is outlined. The advantages and disadvantages of sedentary behaviour measurement approaches are also discussed. Against this background, we summarise studies that have reported sedentary behaviour and its health correlates in RA, and propose directions for future research.

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Criterion Validity of the activPAL Activity Monitor for Sedentary and Physical Activity Patterns in People Who Have Rheumatoid Arthritis

Cited by 33 publications

References 27 publications

Toward Harmonized Treadmill-Based Validation of Step-Counting Wearable Technologies: A Scoping Review

Toward Harmonized Treadmill-Based Validation of Step-Counting Wearable Technologies: A Scoping Review

The efficacy of motivational counselling and SMS reminders on daily sitting time in patients with rheumatoid arthritis: a randomised controlled trial

Sedentary behaviour in rheumatoid arthritis: definition, measurement and implications for health

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