What is being measured with an accelerometer in back pain patients
['accelerometer assessment measuring overall physical activity (PAL), constant strain postures (CSP), standing time (ST) and lying time (LT)', 'Physical activity was measured for 7 days at both baseline and at 3 months with an RT3 accelerometer', 'wearing an accelerometer to assess physical activity in daily life', 'An accelerometer was used to objectively assess their activity level ', 'objective activity data to determine whether patients with chronic lower back pain report their activity levels as accurately as controls do. DESIGN: A cross-sectional study was performed in patients and controls. SETTING: The study was carried out in the daily environment of the subjects. SUBJECTS: Thirty-two chronic lower back pain patients with symptoms more than three months and 20 healthy controls from the Netherlands, aged 18-65 years. MAIN MEASURES: A tri-axial accelerometer was worn for five weekdays', 'During 14days physical activity in daily life was measured, with both an electronic diary and an accelerometer', 'physical activity in daily life was measured with an accelerometer', 'physical activity (PA) in individuals with chronic low back pain (CLBP). Thirty-eight participants with non-specific CLBP (29=distressed; 9=non-distressed) were recruited. PA levels were measured using an accelerometer (activPAL activity monitor) over a one week period. The following parameters of physical activity were recorded: time upright (standing or walking), time standing, time walking, and step count.', 'Physical activity levels will be measured by self report, RT3 triaxial accelerometer,', 'to study the time spent in different static trunk postures which was recorded by a biaxial accelerometer attached to the T12 level', 'Daily activities were assessed by measuring body movement with a tri-axial accelerometer', 'nighttime activity data from 18 patients diagnosed with chronic back pain. The patients were followed for 6 days and 5 nights. Pain levels were collected every 90 min between 0800 hours and 2,200 hours using a computerized electronic diary. Activity levels were collected using a wrist accelerometer (Actiwatch AW-64). The Actiwatch sampled activity counts every 1 min. Patients were asked to wear the Actiwatch on their non-dominant arm.', ' 8-h accelerometer assessment in their daily life (physical activity level (PAL), number of constant postures (CP)', 'The activity levels were collected automatically using a wrist accelerometer and were sampled every minute.', 'Physical activity in daily life, expressed as whole-body acceleration measured with a triaxial accelerometer (Tracmor),']
['Accelerometer assessment measuring overall physical activity (PAL), constant strain postures (CSP), standing time (ST) and lying time (LT)...\nThe following parameters of physical activity were recorded: time upright (standing or walking), time standing, time walking, and step count.']
['Physical activity', 'PA', 'PAL', 'Constant Strain Postures', 'CSP', 'constant postures', 'Standing time', 'ST', 'Lying time', 'LT']