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Aguiar EJ, Turner DT, Pleuss JD, Zheng P, Benitez CJ, Ducharme SW. Daily and Peak Monitor Independent Movement Summary (MIMS) Values Associated With Metabolic Syndrome: NHANES 2011-12 and 2013-14. Scand J Med Sci Sports 2024; 34:e14762. [PMID: 39535457 DOI: 10.1111/sms.14762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 10/15/2024] [Accepted: 11/01/2024] [Indexed: 11/16/2024]
Abstract
The U.S. National Health and Nutrition Examination Survey (NHANES) physical activity monitor datasets for 2011-12 and 2013-14 were released in late 2020. To date, there has been limited interpretation of these nationally representative wrist-worn accelerometer data (summarized and reported in Monitor Independent Movement Summary [MIMS] units) and their relationships with health-related outcomes. This study examined the associations between free-living DailyMIMS (volume), Peak 1MIMS and Peak 30MIMS (intensity), and risk of Metabolic Syndrome (MetS). Data from adults (N=3787; 18-80+ years) in the 2011-12 and 2013-14 NHANES cycles with health examination and accelerometry data were included. Accelerometer data were processed into Peak 1MIMS and Peak 30MIMS (MIMS/min), and DailyMIMS (MIMS/day). Design-based generalized linear and logistic regressions, and a sample-weighted decision tree, were used to examine associations between MIMS variables and MetS risk factors. Lower Peak 1MIMS, Peak 30MIMS, and DailyMIMS were observed for every one-unit increase in the number of risk factors -3.9 [95% CI: -4.3, -3.4] and -2.3 [-2.6, -2.1] MIMS/min, (-672.1 [-772.7, -571.5] MIMS/day, respectively, all p< 0.001). The Decision Tree classified individuals ≥ 46.5 years with a DailyMIMS ≥ 12 245 MIMS/day and a Peak 30MIMS < 45.1 MIMS/min as having MetS (≥ 3 risk factors). Individuals < 46.5 years with a Peak 1MIMS ≥ 62.9 MIMS/min were classified with 0 risk factors. Higher DailyMIMS and PeakMIMS were associated with an absence of MetS risk factors, with a progressive decline as the number of risk factors increased. These findings may be considered as preliminary benchmarks for DailyMIMS and PeakMIMS associated with cardiometabolic risk.
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Affiliation(s)
- Elroy J Aguiar
- Department of Kinesiology, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Dusty T Turner
- Department of Statistical Science, Baylor University, Waco, Texas, USA
| | - James D Pleuss
- Department of Computer Science, Stevens Institute of Technology, Hoboken, New Jersey, USA
| | - Peixuan Zheng
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, Illinois, USA
| | - Cristal J Benitez
- Department of Kinesiology, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Scott W Ducharme
- Department of Kinesiology, California State University Long Beach, Long Beach, California, USA
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Alrashdi NZ, Aguiar EJ, White CE, Saunders AK, Momaya AM, Emblom BA, Ryan MK, Motl RW, Ithurburn MP. Comparison of Step-Based Metrics Under Laboratory and Free-Living Conditions in Femoroacetabular Impingement Syndrome. J Athl Train 2024; 59:1004-1011. [PMID: 38629503 PMCID: PMC11537222 DOI: 10.4085/1062-6050-0322.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2024]
Abstract
CONTEXT Femoroacetabular impingement syndrome (FAIS) causes pain and functional limitations. Little is known regarding walking characteristics, volume, and intensity evaluated in laboratory and free-living conditions and whether these measures differ between those with FAIS and uninjured individuals. OBJECTIVE To examine the differences in laboratory gait measures and free-living step-based metrics between individuals with FAIS and uninjured control participants. DESIGN Comparative, cross-sectional study. PATIENTS OR OTHER PARTICIPANTS We enrolled 25 participants with FAIS and 14 uninjured controls. MAIN OUTCOME MEASURE(S) We evaluated laboratory spatiotemporal gait measures (cadence, velocity, step length, stride length) during self-selected and fast walking speeds using an instrumented walkway. Participants then wore an accelerometer around the waist during waking hours for 7 consecutive days. Free-living step-based metrics included average daily steps, peak 1- and 30-minute cadence, and average daily time spent in walking cadence bands. We compared laboratory gait measures and step-based metrics between groups. RESULTS The groups did not differ in laboratory spatiotemporal gait measures during both speeds (all P > .05). The FAIS group took fewer daily steps (5346 ± 2141 versus 7338 ± 2787 steps/d; P = .030) and had lower peak 1-minute (92.9 ± 23.9 versus 119.6 ± 16.3 steps/min; P < .001) and 30-minute cadences (60.9 ± 27.1 versus 86.8 ± 22.4 steps/min; P = .003) compared with uninjured controls, respectively. The FAIS group also spent less time in slow (6.0 ± 3.6 versus 10.3 ± 3.4 min/d; P = .001), medium (4.5 ± 4.2 versus 8.9 ± 4.4 min/d; P = .005), and brisk/moderate (4.5 ± 6.2 versus 12.2 ± 10.3; P = .020) cadence bands compared with uninjured controls. CONCLUSIONS Clinical/laboratory gait measures alone may not be representative of real-world walking-related physical activity behavior in individuals with FAIS.
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Affiliation(s)
- Naif Z. Alrashdi
- Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia
| | - Elroy J. Aguiar
- Department of Kinesiology, University of Alabama, Tuscaloosa
| | - Collin E. White
- Doctor of Physical Therapy Program, School of Health Professions, University of Alabama at Birmingham
| | - Anna K. Saunders
- Doctor of Physical Therapy Program, School of Health Professions, University of Alabama at Birmingham
| | - Amit M. Momaya
- Department of Orthopaedic Surgery, School of Medicine, University of Alabama at Birmingham
| | - Benton A. Emblom
- The Hip Center at Andrews Sports Medicine and Orthopaedic Center, Birmingham, AL
- American Sports Medicine Institute, Birmingham, AL
| | - Michael K. Ryan
- The Hip Center at Andrews Sports Medicine and Orthopaedic Center, Birmingham, AL
- American Sports Medicine Institute, Birmingham, AL
| | - Robert W. Motl
- Department of Kinesiology and Nutrition, University of Illinois, Chicago
| | - Matthew P. Ithurburn
- American Sports Medicine Institute, Birmingham, AL
- Department of Physical Therapy, University of Alabama at Birmingham
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Buchan DS. Comparison of stepping-based metrics from ActiGraph accelerometers worn concurrently on the non-dominant wrist and waist among young adults. J Sports Sci 2024; 42:1664-1672. [PMID: 39369332 DOI: 10.1080/02640414.2024.2404784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 09/09/2024] [Indexed: 10/07/2024]
Abstract
Step counts can be estimated from wrist-worn accelerometers through the Verisense Step Count Algorithm. No study has assessed agreement between stepping metrics from ActiGraph accelerometers during free-living. Thirty-four participants (age: 22.9 ± 3.4 years) provided 24 h accelerometer data (non-dominant wrist) and waist. Agreement of two Verisense Algorithms (Verisense 1 & 2) for estimating daily steps, moderate-to-vigorous physical activity (MVPA), peak 1-min and 30-min accumulated steps, against the waist and ActiLife step-count Algorithm was assessed. Mean bias ± 95% limits of agreement (LoA) for daily steps was +1255 ± 3780 steps/day (mean absolute percent error (MAPE): 21%) (Verisense 1) and +1357 ± 3434 steps/day (MAPE: 20%) (Verisense 2). For peak 1-min accumulated steps, mean bias and 95% LoA was -17 ± 23 steps/min (MAPE: 17%) (Verisense 1) and -6 ± 5 steps/min (MAPE: 9%) with Verisense 2. For peak 30-min accumulated steps, mean bias and 95% LoA was -12 ± 45 steps/min (MAPE: 25%) (Verisense 1) and -2 ± 38 steps/min (MAPE: 13%) (Verisense 2). For MVPA steps/day, mean bias and 95% LoA was -1450 ± 3194 steps/day (MAPE: 420%) (Verisense 1) and -844 ± 2571 steps/day (MAPE: 211%) (Verisense 2). For MVPA min/day, mean bias and 95% LoA was -13 ± 27 min/day (MAPE: 368%) (Verisense 1) and -8 ± 24 min/day (MAPE: 209%) (Verisense 2). The Verisense 2 algorithm enhanced agreement for stepping intensity metrics but further refinement is needed to enhance agreement for MVPA against the waist.
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Affiliation(s)
- Duncan S Buchan
- Division of Sport and Exercise, School of Health and Life Sciences, University of the West of Scotland, Scotland, UK
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Zheng P, Sandroff BM, Motl RW. Free-living ambulatory physical activity and cognitive function in multiple sclerosis: the significance of step rate vs. step volume. J Neurol 2024; 271:1638-1648. [PMID: 38214757 DOI: 10.1007/s00415-023-12169-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND Physical activity (PA) represents a promising behavioral approach for managing cognitive dysfunction in multiple sclerosis (MS). However, there is a lack of information on the pattern of free-living PA intensity (e.g., step rate) and its unique association with cognition. Such information is essential for informing clinical trials in MS. OBJECTIVE We examined associations among PA volume and intensity with cognitive function in persons with MS, and intensity was derived from steps-based metrics (peak 30-min cadence [Peak-30CAD], and time spent in incremental cadence bands). METHODS We included data from 147 persons with MS who underwent assessments of cognitive function (via Brief International Cognitive Assessment in MS) and wore an ActiGraph GT3X + accelerometer for 7 days. We performed bivariate and partial correlations and regression analyses examining associations among PA metrics and cognitive outcomes. RESULTS Higher Peak-30CAD was significantly associated with better performance in cognitive processing speed and verbal learning and memory (rs = 0.19-0.38), and the associations remained significant when controlling for daily steps, age, sex, and years of education (p < 0.05). By comparison, daily steps was only correlated with cognitive processing speed (rs = 0.26), and the association was non-significant when controlling for Peak-30CAD and covariates. There were stronger correlations among time spent in higher intensity cadence bands with cognitive performance (rs = 0.18-0.38). CONCLUSION Our results highlight the important role of PA intensity for cognition in MS, and may inform future development of focal PA interventions that focusing on step rate patterns for improving cognition in persons with MS.
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Affiliation(s)
- Peixuan Zheng
- Department of Kinesiology and Nutrition, College of Applied Health Sciences, University of Illinois Chicago, 545 AHSB, 1919 W. Taylor St., Chicago, IL, 60612, USA.
| | - Brian M Sandroff
- Center for Neuropsychology and Neuroscience Research, Kessler Foundation, West Orange, NJ, USA
- Department of Physical Medicine and Rehabilitation, Rutgers NJ Medical School, Newark, NJ, USA
| | - Robert W Motl
- Department of Kinesiology and Nutrition, College of Applied Health Sciences, University of Illinois Chicago, 545 AHSB, 1919 W. Taylor St., Chicago, IL, 60612, USA
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Zheng P, Jeng B, Huynh TLT, Aguiar EJ, Motl RW. Free-Living Peak Cadence in Multiple Sclerosis: A New Measure of Real-World Walking? Neurorehabil Neural Repair 2023; 37:716-726. [PMID: 37864454 DOI: 10.1177/15459683231206741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
BACKGROUND Physical function and walking performance have become important outcomes in clinical trials and rehabilitation involving persons with multiple sclerosis (MS). However, assessments conducted in controlled settings may not reflect real-world capacity and movement in a natural environment. Peak cadence via accelerometry might represent a novel measure of walking intensity and prolonged natural effort under free-living conditions. OBJECTIVE We compared peak 30-minute cadence, peak 1-minute cadence, and time spent in incremental cadence bands between persons with MS and healthy controls, and examined the associations between peak cadence and laboratory-assessed physical function and walking performance. METHODS Participants (147 MS and 54 healthy controls) completed questionnaires on disability status and self-reported physical activity, underwent the Short Physical Performance Battery, Timed 25-Foot Walk, Timed Up and Go, and 6-Minute Walk, and wore an accelerometer for 7 days. We performed independent samples t-tests and Spearman bivariate and partial correlations adjusting for daily steps. RESULTS The MS sample demonstrated lower physical function and walking performance scores, daily steps, and peak cadence (P < .001), and spent less time in purposeful steps and slow-to-brisk walking (40-119 steps/minutes), but accumulated more incidental movement (1-19 steps/minutes) than healthy controls. The associations between peak cadence and performance outcomes were strong in MS (|rs| = 0.59-0.68) and remained significant after controlling for daily steps (|prs| = 0.22-0.44), P-values < .01. Peak cadence was inversely correlated with age and disability, regardless of daily steps (P < .01). CONCLUSIONS Our findings provide preliminary evidence for the potential use of peak cadence with step-based metrics for comprehensively evaluating free-living walking performance in MS.
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Affiliation(s)
- Peixuan Zheng
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL, USA
| | - Brenda Jeng
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL, USA
| | - Trinh L T Huynh
- Department of Physical Therapy, School of Health Professions, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Elroy J Aguiar
- Department of Kinesiology, The University of Alabama, Tuscaloosa, AL, USA
| | - Robert W Motl
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL, USA
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Vilar-Gomez E, Vuppalanchi R, Gawrieh S, Pike F, Samala N, Chalasani N. Significant Dose-Response Association of Physical Activity and Diet Quality With Mortality in Adults With Suspected NAFLD in a Population Study. Am J Gastroenterol 2023; 118:1576-1591. [PMID: 36799895 DOI: 10.14309/ajg.0000000000002222] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 02/10/2023] [Indexed: 02/18/2023]
Abstract
INTRODUCTION We aimed to determine whether higher levels (volume and intensity) of physical activity (PA) and diet quality (DQ) are associated with better survival rates in nonalcoholic fatty liver disease (NAFLD). METHODS Using data from the 2011-2014 National Health and Nutrition Examination Survey, 3,548 participants with a Fatty Liver Index ≥60 were included. PA was collected using a wrist-worn triaxial accelerometer and expressed as 2 metrics using Monitor-Independent Movement Summary (MIMS) units: the average of daily MIMS, which represents volume, and peak 30-minute MIMS, which is the average of the highest 30 MIMS min/d and represents intensity. DQ was assessed by the Healthy Eating Index-2015. Mortality follow-up was recorded using the National Death Index linkage through December 31, 2019. RESULTS Our analyses revealed a dose-dependent, nonlinear association of PA (volume and intensity) with all-cause mortality and a dose-dependent, linear association of DQ with all-cause mortality. The maximum protective dose of PA volume was observed at 14,300 MIMS/min (adj. HR: 0.20, 95% CI: 0.11-0.38). The maximum protective dose of PA intensity was observed at 54.25 MIMS/min (adj. HR: 0.10, 95% CI: 0.05-0.23), beyond which mortality risks flattened. The Healthy Eating Index-2015 showed its maximum protective effect at 66.17 (adj. HR: 0.54, 95% CI: 0.40-0.74). Higher PA (volume and intensity) levels were associated with a lower risk of cardiovascular-related but not cancer-related mortality. A healthier diet was linked to a reduced risk of cardiovascular-specific and cancer-specific mortality. Sensitivity analyses showed that the beneficial effects of PA and DQ on survival rates remained significant across sex, racial/ethnic, and age groups as well as in participants without NAFLD. DISCUSSION Our findings suggest that higher daily accumulated and peak effort PA and DQ are associated with lower all-cause and cardiovascular mortality in US adults with NAFLD.
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Affiliation(s)
- Eduardo Vilar-Gomez
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Raj Vuppalanchi
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Samer Gawrieh
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Francis Pike
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana
| | - Niharika Samala
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Naga Chalasani
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
- Indiana University Health, Indianapolis, Indiana
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Mair JL, Aguiar EJ, Stamatakis E, Edney SM. Moving Toward the Inclusion of Step-Based Metrics in Physical Activity Guidelines and Surveillance. J Phys Act Health 2023:1-3. [PMID: 37279896 DOI: 10.1123/jpah.2023-0180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 04/30/2023] [Indexed: 06/08/2023]
Affiliation(s)
- Jacqueline L Mair
- Future Health Technologies, Singapore-ETH Center, Campus for Research Excellence And Technological Enterprise (CREATE), Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Elroy J Aguiar
- Department of Kinesiology, College of Education, The University of Alabama, Tuscaloosa, AL,USA
| | - Emmanuel Stamatakis
- Charles Perkins Center, School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW,Australia
| | - Sarah M Edney
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
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Zheng P, Pleuss JD, Turner DS, Ducharme SW, Aguiar EJ. Dose-Response Association Between Physical Activity (Daily MIMS, Peak 30-Minute MIMS) and Cognitive Function Among Older Adults: NHANES 2011-2014. J Gerontol A Biol Sci Med Sci 2023; 78:286-291. [PMID: 35512348 DOI: 10.1093/gerona/glac076] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The purpose of this study was to determine the dose-response association between habitual physical activity (PA) and cognitive function using a nationally representative data set of U.S. older adults aged ≥60 years. METHODS We used data from the 2011-2014 National Health and Nutrition Examination Survey (n = 2 441, mean [SE] age: 69.1 [0.2] years, 54.7% females). Cognitive function was assessed using the digit symbol substitution test (DSST) and animal fluency test (AFT). Habitual PA was collected using a triaxial accelerometer worn on participants' nondominant wrist. PA was expressed as 2 metrics using monitor-independent movement summary (MIMS) units: the average of Daily MIMS (MIMS/day) and peak 30-minute MIMS (Peak-30MIMS; the average of the highest 30 MIMS min/d). Sample weight-adjusted multivariable linear regression was performed to determine the relationship between each cognitive score and MIMS metric while adjusting for covariates. RESULTS After controlling for covariates, for each 1 000-unit increase in Daily MIMS, DSST score increased (β-coefficient [95% CIs]) by 0.67 (0.40, 0.93), whereas AFT score increased by 0.13 (0.04, 0.22); for each 1-unit increase in Peak-30MIMS, DSST score increased by 0.56 (0.42, 0.70), whereas AFT score increased by 0.10 (0.05, 0.15), all p < .001. When including both MIMS metrics in a single model, the association between Peak-30MIMS and cognitive scores remained significant (p < .01), whereas Daily MIMS did not. CONCLUSIONS Our findings suggest that higher PA (both daily accumulated and peak effort) is associated with better cognitive function in the U.S. older adult population.
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Affiliation(s)
- Peixuan Zheng
- Department of Kinesiology, The University of Alabama, Tuscaloosa, Alabama, USA
| | - James D Pleuss
- NATO Allied Land Command, Izmir, Turkey.,Department of Computer Science, Stevens Institute of Technology, Hoboken, New Jersey, USA
| | - Dusty S Turner
- Center for Army Analysis, Fort Belvoir, Virginia, USA.,Department of Statistical Science, Baylor University, Waco, Texas, USA
| | - Scott W Ducharme
- Department of Kinesiology, California State University Long Beach, Long Beach, California, USA
| | - Elroy J Aguiar
- Department of Kinesiology, The University of Alabama, Tuscaloosa, Alabama, USA
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Agreement of Step-Based Metrics From ActiGraph and ActivPAL Accelerometers Worn Concurrently Among Older Adults. JOURNAL FOR THE MEASUREMENT OF PHYSICAL BEHAVIOUR 2022; 5:242-251. [PMID: 36816711 PMCID: PMC9934009 DOI: 10.1123/jmpb.2022-0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Purpose Our study evaluated the agreement of mean daily step counts, peak 1-min cadence, and peak 30-min cadence between the hip-worn ActiGraph GT3X+ accelerometer, using the normal filter (AGN) and the low frequency extension (AGLFE), and the thigh-worn activPAL3 micro (AP) accelerometer among older adults. Methods Nine-hundred and fifty-three older adults (≥65 years) were recruited to wear the ActiGraph device concurrently with the AP for 4-7 days beginning in 2016. Using the AP as the reference measure, device agreement for each step-based metric was assessed using mean differences (AGN - AP and AGLFE - AP), mean absolute percentage error (MAPE), and Pearson and concordance correlation coefficients. Results For AGN - AP, the mean differences and MAPE were: daily steps -1,851 steps/day and 27.2%, peak 1-min cadence -16.2 steps/min and 16.3%, and peak 30-min cadence -17.7 steps/min and 24.0%. Pearson coefficients were .94, .85, and .91 and concordance coefficients were .81, .65, and .73, respectively. For AGLFE - AP, the mean differences and MAPE were: daily steps 4,968 steps/day and 72.7%, peak 1-min cadence -1.4 steps/min and 4.7%, and peak 30-min cadence 1.4 steps/min and 7.0%. Pearson coefficients were .91, .91, and .95 and concordance coefficients were .49, .91, and .94, respectively. Conclusions Compared with estimates from the AP, the AGN underestimated daily step counts by approximately 1,800 steps/day, while the AGLFE overestimated by approximately 5,000 steps/day. However, peak step cadence estimates generated from the AGLFE and AP had high agreement (MAPE ≤ 7.0%). Additional convergent validation studies of step-based metrics from concurrently worn accelerometers are needed for improved understanding of between-device agreement.
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Lee C, Chung KM. A Pilot Study for Testing the Effectiveness and Cost-Efficiency of Lottery Incentive in mHealth App that Promotes Walking. INQUIRY: THE JOURNAL OF HEALTH CARE ORGANIZATION, PROVISION, AND FINANCING 2022; 59:469580221091398. [PMID: 35621321 PMCID: PMC9150245 DOI: 10.1177/00469580221091398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This is a pilot study that investigated differences in effectiveness, maintenance of effectiveness, cost-efficiency, satisfaction, and usability of a lottery incentive via mobile devices to promote walking, depending on the chance of winning the lottery, the amount of the prize, and gender. Sixty-six college students (male = 26) were randomly assigned to 3 groups: 10% chance of a big prize (10% + B), 50% chance of a medium prize (50% + M), and 100% chance of a small prize (100% + S). Step counts were collected through mobile devices before and after the intervention, as well as at the 2-month follow-up. The results showed significant increases in the step counts among males after the intervention in the 10% + B and the 50% + M groups, and females in the 100% + S group. Only males in the 50% + M group exhibited maintenance in effectiveness during follow-up. With regard to cost-efficiency, the 10% + B and the 50% + M male groups, which showed significant differences in effectiveness, were compared, and no significant difference was found. With regard to intervention satisfaction, satisfaction of the 10% + B group was lower than that of the 100% + S group. There were no significant interactions or main effects regarding the usability of the intervention. The results suggest that a lottery incentive is effective only for men to promote walking when a medium size prize is given with a 50% of chance of winning the lottery.
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Affiliation(s)
- Changseok Lee
- Department of Psychology, Yonsei University, Seoul, South Korea
| | - Kyong-Mee Chung
- Department of Psychology, Yonsei University, Seoul, South Korea
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Pollard B, Engelen L, Held F, de Dear R. Movement at work: A comparison of real time location system, accelerometer and observational data from an office work environment. APPLIED ERGONOMICS 2021; 92:103341. [PMID: 33360879 DOI: 10.1016/j.apergo.2020.103341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/20/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Office workers can spend significant periods of time being stationary whilst at work, with potentially serious health consequences. The development of effective health interventions could be aided by a greater understanding of the location and environmental context in which this stationary behaviour occurs. Real time location systems (RTLS) potentially offer the opportunity to gather this much needed information, but they have not been extensively trialled in office workplaces, nor rigorously compared against more familiar devices such as accelerometers. The aim of this paper was to determine whether an RTLS can measure and spatially locate the non-stationary and stationary behaviours of adults working in an office work environment. Data collected from a series of comparison studies undertaken in a commercial office building suggests that RTLS can measure the velocity at which people are moving and locate them, when stationary, with an accuracy of 0.668 m (SD 0.389). This opens up significant opportunities to further understand how people move within buildings, the indoor physical environmental influences on that movement, and the development of effective interventions to help people to move more whilst at work.
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Affiliation(s)
- Brett Pollard
- School of Public Health, Prevention Research Collaboration and Charles Perkins Centre, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Lina Engelen
- School of Public Health, Prevention Research Collaboration and Charles Perkins Centre, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Fabian Held
- Office of the Deputy Vice-Chancellor (Education) - Enterprise and Engagement and Charles Perkins Centre, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Richard de Dear
- IEQ Lab., School of Architecture, Design and Planning, The University of Sydney, Sydney, NSW, 2006, Australia
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Lystrup R, Carlsen D, Sharon DJ, Crawford P. Wearable and interactive technology to share fitness goals results in weight loss but not improved diabetes outcomes. Obes Res Clin Pract 2020; 14:443-448. [DOI: 10.1016/j.orcp.2020.08.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 01/22/2020] [Accepted: 08/27/2020] [Indexed: 12/16/2022]
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