Methods for the real-world evaluation of fall detection technology : a scoping review (2018)
Journal Article

Falls in older adults present a major growing healthcare challenge and reliable detection
of falls is crucial to minimise their consequences. The majority of development and testing has
used laboratory simulations. As simulations do not cover the w... Read More about Methods for the real-world evaluation of fall detection technology : a scoping review.

Older adult dog owners are more physically active than their non-dog-owning counterparts (2017)
Journal Article
Gee, N., Dall, P., Ellis, S., Ellis, B., Granat, M., & Mills, D. (2017). Older adult dog owners are more physically active than their non-dog-owning counterparts. Innovation in Aging, 1(Supl_1), 293-293. https://doi.org/10.1093/geroni/igx004.1086

The study examined the influence of dog ownership on physical activity (PA) in community dwelling older adults using a longitudinal design and an objective measure of PA (activPAL monitor).

Eighty six participants (aged 65–81 years) were matched... Read More about Older adult dog owners are more physically active than their non-dog-owning counterparts.

The association of sedentary behaviour and mental wellbeing in the workplace (2017)
Presentation / Conference Contribution

Background: Sedentary behaviour (SB) is highly prevalent in workplaces and this behaviour can be detrimental to health; however, little is known about SB and its association with mental wellbeing (MW). Therefore, the main aim of this pilot study was... Read More about The association of sedentary behaviour and mental wellbeing in the workplace.

24-hour population-level activity patterns : application of relative versus standard reference frame (2017)
Presentation / Conference Contribution

Background: Population-level analysis of physical activity levels reveals a 24-hour pattern determined by the alignment of each individual's activity with a common reference point, i.e., the 24-hour standard timeframe. In this way, each person's day... Read More about 24-hour population-level activity patterns : application of relative versus standard reference frame.

Classification of occupations by accelerometer-derived variables for physical behaviour : Health Survey for England 2008 (2017)
Presentation / Conference Contribution

Objective: Leisure time sedentary behaviour (SB) is known to be associated with a number of healthrelated outcomes (HRO); however, for those who are economically active, occupational activity (OA) contributes towards their daily physical activity (PA... Read More about Classification of occupations by accelerometer-derived variables for physical behaviour : Health Survey for England 2008.

The distribution of activPAL postural and stepping classifications within ActiGraph activity classifications (2017)
Presentation / Conference Contribution

Objective: Guidelines of physical activity (PA) and sedentary behaviour (SB) are dependent on how we define and quantify physical behaviour. It is therefore important to understand the validity of objective measures of PA and SB. This study aimed to... Read More about The distribution of activPAL postural and stepping classifications within ActiGraph activity classifications.

The influence of dog ownership on objective measures of free-living physical activity and sedentary behaviour in community-dwelling older adults : a longitudinal case-controlled study (2017)
Journal Article

Background: There is some evidence to suggest that dog ownership may improve physical activity (PA) among
older adults, but to date, studies examining this, have either depended on self-report or incomplete datasets due to
the type of activity moni... Read More about The influence of dog ownership on objective measures of free-living physical activity and sedentary behaviour in community-dwelling older adults : a longitudinal case-controlled study.

Total hip arthroplasty improves pain and function but not physical activity (2017)
Journal Article
Jeldi, A., Deakin, A., Allen, D., Granat, M., Grant, M., & Stansfield, B. (2017). Total hip arthroplasty improves pain and function but not physical activity. Journal of Arthroplasty, 32(7), 2191-2198. https://doi.org/10.1016/j.arth.2017.02.002

Background:
People with hip osteoarthritis are likely to limit physical activity (PA) engagement due to
pain and lack of function. Total hip arthroplasty (THA) reduces pain and improves function,
potentially allowing increased PA. PA of THA patie... Read More about Total hip arthroplasty improves pain and function but not physical activity.

Large scale population assessment of physical activity using wrist worn accelerometers: The UK Biobank Study (2017)
Journal Article

BACKGROUND: Physical activity has not been objectively measured in prospective cohorts with sufficiently large numbers to reliably detect associations with multiple health outcomes. Technological advances now make this possible. We describe the metho... Read More about Large scale population assessment of physical activity using wrist worn accelerometers: The UK Biobank Study.

Differentiating sitting and lying using a thigh-worn accelerometer (2016)
Journal Article
Lyden, K., John, D., Dall, P., & Granat, M. (2016). Differentiating sitting and lying using a thigh-worn accelerometer. Medicine and Science in Sports and Exercise, 48(4), 742-747. https://doi.org/10.1249/MSS.0000000000000804

A tri-axial accelerometer worn on the thigh can provide information on the angle of rotation of the thigh. These data may be used to estimate periods of lying versus sitting. Purpose: To
develop and test a classification algorithm to identify sedent... Read More about Differentiating sitting and lying using a thigh-worn accelerometer.

The long-term effect of being treated in a geriatric ward compared to an orthopaedic ward on six measures of free-living physical behavior 4 and 12 months after a hip fracture - a randomised controlled trial (2015)
Journal Article
Taraldsen, K., Thingstad, P., Sletvold, O., Lydersen, S., Granat, M., Chastin, S., & Helbostad, J. (2015). The long-term effect of being treated in a geriatric ward compared to an orthopaedic ward on six measures of free-living physical behavior 4 and 12 months after a hip fracture - a randomised controlled trial. BMC Geriatrics, 15, 160. https://doi.org/10.1186/s12877-015-0153-6

Background
This study is part of the Trondheim Hip Fracture Trial, where we compared free-living physical behavior in daily life 4 and 12 months following hip surgery for patients managed with comprehensive geriatric care (CGC) in a geriatric ward... Read More about The long-term effect of being treated in a geriatric ward compared to an orthopaedic ward on six measures of free-living physical behavior 4 and 12 months after a hip fracture - a randomised controlled trial.

Utilization & harmonization of adult accelerometry data : review & expert consensus (2015)
Journal Article

Purpose: To describe the scope of accelerometry data collected internationally in adults; and, to
obtain a consensus from measurement experts regarding the optimal strategies to harmonize
international accelerometry data. Methods: In March 2014 a c... Read More about Utilization & harmonization of adult accelerometry data : review & expert consensus.

Visualization of sedentary behavior using an event- based approach (2015)
Journal Article

Visualization is commonly used in the interpretation of physical behavior (PB) data, either in conjunction with or as precursor to formal analysis. Effective representations of the data can enable the identification of patterns of behavior, and how t... Read More about Visualization of sedentary behavior using an event- based approach.

Empirically derived cut-points for sedentary behaviour for weekdays and weekends : are we sitting differently? (2015)
Presentation / Conference Contribution

Introduction: Sedentary behaviour (SB) is associated with many adverse health outcomes. Studies that have used accelerometers to define sedentary time usually adopt a <100 counts per minute (cpm) threshold for classifying SB; however, this cut-poi... Read More about Empirically derived cut-points for sedentary behaviour for weekdays and weekends : are we sitting differently?.

Quantifying the cadence of free-living walking using event-based analysis (2015)
Journal Article
Granat, M., Clarke, C., Holdsworth, R., Stansfield, B., & Dall, P. (2015). Quantifying the cadence of free-living walking using event-based analysis. Gait & Posture, 42(1), 85-90. https://doi.org/10.1016/j.gaitpost.2015.04.012

Purpose: Free-living walking occurs over a wide range of durations and intensities (cadence). Therefore,
its characterisation requires a full description of the distribution of duration and cadence of these
walking events. The aim was to use event-... Read More about Quantifying the cadence of free-living walking using event-based analysis.

The development and validation of an activity monitoring system for use in measurement of posture of childbearing women during first stage of labour (2015)
Journal Article
Hollins-Martin, C., Kenney, L., Pratt, T., & Granat, M. (2015). The development and validation of an activity monitoring system for use in measurement of posture of childbearing women during first stage of labour. Journal of Midwifery and Women's Health, 60(2), 182-186. https://doi.org/10.1111/jmwh.12230

Introduction: There is limited understanding of the type and extent of maternal postures that midwives should encourage or support during labor.
The aims of this study were to identify a set of postures and movements commonly seen during labor, to d... Read More about The development and validation of an activity monitoring system for use in measurement of posture of childbearing women during first stage of labour.

Quantification of outdoor mobility by use of accelerometer-measured physical behaviour (2015)
Journal Article
Taraldsen, K., Granat, M., & Helbostad, J. (2015). Quantification of outdoor mobility by use of accelerometer-measured physical behaviour. BioMed Research International, 2015, Article ID 910259. https://doi.org/10.1155/2015/910259

Hip fractures in older persons are associated with both low levels of daily physical activity and loss of outdoor mobility. The aim of this study was to investigate if accelerometer-based measures of physical behaviour can be used to determine if peo... Read More about Quantification of outdoor mobility by use of accelerometer-measured physical behaviour.

Seasonal variation in the distribution of daily stepping in 11-13 year old school children (2015)
Journal Article

Seasonality studies in adolescent’s physical activity(PA) tend to report total PA (e.g. steps/day) rather than more specific detail such as steps/hour. This study compared the detailed changes in PA between seasons. Thirty three adolescents (baseline... Read More about Seasonal variation in the distribution of daily stepping in 11-13 year old school children.

True cadence and step accumulation are not equivalent : the effect of intermittent claudication on free-living cadence (2014)
Journal Article
Stansfield, B., Clarke, C., Dall, P., Godwin, R., Holdsworth, R., & Granat, M. (2015). True cadence and step accumulation are not equivalent : the effect of intermittent claudication on free-living cadence. Gait & Posture, 41(2), 414-419. https://doi.org/10.1016/j.gaitpost.2014.11.002

‘True cadence’ is the rate of stepping during the period of stepping. ‘Step accumulation’ is the steps
within an epoch of time (e.g. 1 min). These terms have been used interchangeably in the literature. These
outcomes are compared within a populati... Read More about True cadence and step accumulation are not equivalent : the effect of intermittent claudication on free-living cadence.

Objective assessment of intensity categorization of the previous day physical activity recall questionnaire in 11–13 year old children (2014)
Journal Article
McBrearty, D., McCrorie, P., Granat, M., Duncan, E., & Stansfield, B. (2014). Objective assessment of intensity categorization of the previous day physical activity recall questionnaire in 11–13 year old children. Physiological Measurement, 35(11), 2329-2342. https://doi.org/10.1088/0967-3334/35/11/2329

The Previous Day Physical Activity Recall (PDPAR) self-report questionnaire asks children to categories their time in 30 min blocks under activity codes and activity intensity (ActInt). Text and visual descriptors of ActInt are used which include pos... Read More about Objective assessment of intensity categorization of the previous day physical activity recall questionnaire in 11–13 year old children.