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Validity of wearable actimeter computation of total energy expenditure during walking in post-stroke individuals / M. Compagnat in Annals of physical and rehabilitation medicine, Vol. 63, n°3 (Mai-Juin 2020)
[article]
Titre : Validity of wearable actimeter computation of total energy expenditure during walking in post-stroke individuals Type de document : texte imprimé Auteurs : M. Compagnat ; S. Mandigout ; C.S. Batcho ; Nicolas Vuillerme ; Jean-Yves Salle ; Romain David ; Jean-Christophe Daviet Année de publication : 2020 Article en page(s) : p. 209-215 Note générale : doi.org/10.1016/j.rehab.2019.07.002 Langues : Anglais (eng) Mots-clés : Energy cost Walking Energy expenditure Calibration Accelerometer Algorithm Résumé : Background
Recent studies reported that wearable sensor devices show low validity for assessing the amount of energy expenditure in individuals after stroke.
Objective
We aimed to evaluate the validity of energy expenditure calculation based on the product of energy cost and walked distance estimated by wearable devices in individuals after hemispheric stroke.
Methods
We recruited individuals with hemispheric stroke sequelae who were able to walk without human assistance. The participants wore a tri-axial accelerometer (Actigraph GT3x) and a pedometer (ONStep 400) on the unaffected hip in addition to a respiratory gas exchange analyzer (METAMAX 3B) during 6 min of walking at their self-selected walking speed and mode. The energy expenditure was calculated from the product of energy cost measured by the METAMAX 3B and the distance estimated by wearable devices. It was compared to the energy expenditure measured by the METAMAX 3B and the energy expenditure values recorded by the devices according to the manufacturer's algorithms. The validity was investigated by Bland-Altman analysis (mean bias [MB], root mean square error [RMSE], limits of agreement [95%LoA]), and Pearson correlation analysis (r).
Results
We included 26 participants (mean [SD] age 64.6 [14.8] years). With the pedometer, the energy expenditure calculated from the product of energy cost and walked distance showed high accuracy and agreement with METAMAX 3B values (MB = −1.6 kcal; RMSE = 4.1 kcal; 95%LoA = −9.9; 6.6 kcal; r = 0.87, P < 0.01) but low accuracy and agreement with Actigraph GT3x values (MB = 15.7 kcal; RMSE = 8.7 kcal; 95%LoA = −1.3; 32.6 kcal; r = 0.44, P = 0.02) because of poorer estimation of walked distance. With the pedometer, this new method of calculation strongly increased the validity parameter values for estimating energy expenditure as compared with the manufacturer's algorithm.
Conclusions
This new method based on the energy cost and distance estimated by wearable devices provided better energy expenditure estimates for the pedometer than did the manufacturer's algorithm. The validity of this method depended on the accuracy of the sensor to measure the distance walked by an individual after stroke.Permalink : ./index.php?lvl=notice_display&id=90797
in Annals of physical and rehabilitation medicine > Vol. 63, n°3 (Mai-Juin 2020) . - p. 209-215[article] Validity of wearable actimeter computation of total energy expenditure during walking in post-stroke individuals [texte imprimé] / M. Compagnat ; S. Mandigout ; C.S. Batcho ; Nicolas Vuillerme ; Jean-Yves Salle ; Romain David ; Jean-Christophe Daviet . - 2020 . - p. 209-215.
doi.org/10.1016/j.rehab.2019.07.002
Langues : Anglais (eng)
in Annals of physical and rehabilitation medicine > Vol. 63, n°3 (Mai-Juin 2020) . - p. 209-215
Mots-clés : Energy cost Walking Energy expenditure Calibration Accelerometer Algorithm Résumé : Background
Recent studies reported that wearable sensor devices show low validity for assessing the amount of energy expenditure in individuals after stroke.
Objective
We aimed to evaluate the validity of energy expenditure calculation based on the product of energy cost and walked distance estimated by wearable devices in individuals after hemispheric stroke.
Methods
We recruited individuals with hemispheric stroke sequelae who were able to walk without human assistance. The participants wore a tri-axial accelerometer (Actigraph GT3x) and a pedometer (ONStep 400) on the unaffected hip in addition to a respiratory gas exchange analyzer (METAMAX 3B) during 6 min of walking at their self-selected walking speed and mode. The energy expenditure was calculated from the product of energy cost measured by the METAMAX 3B and the distance estimated by wearable devices. It was compared to the energy expenditure measured by the METAMAX 3B and the energy expenditure values recorded by the devices according to the manufacturer's algorithms. The validity was investigated by Bland-Altman analysis (mean bias [MB], root mean square error [RMSE], limits of agreement [95%LoA]), and Pearson correlation analysis (r).
Results
We included 26 participants (mean [SD] age 64.6 [14.8] years). With the pedometer, the energy expenditure calculated from the product of energy cost and walked distance showed high accuracy and agreement with METAMAX 3B values (MB = −1.6 kcal; RMSE = 4.1 kcal; 95%LoA = −9.9; 6.6 kcal; r = 0.87, P < 0.01) but low accuracy and agreement with Actigraph GT3x values (MB = 15.7 kcal; RMSE = 8.7 kcal; 95%LoA = −1.3; 32.6 kcal; r = 0.44, P = 0.02) because of poorer estimation of walked distance. With the pedometer, this new method of calculation strongly increased the validity parameter values for estimating energy expenditure as compared with the manufacturer's algorithm.
Conclusions
This new method based on the energy cost and distance estimated by wearable devices provided better energy expenditure estimates for the pedometer than did the manufacturer's algorithm. The validity of this method depended on the accuracy of the sensor to measure the distance walked by an individual after stroke.Permalink : ./index.php?lvl=notice_display&id=90797 Exemplaires (1)
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Exclu du prêtOutcomes Of Bilateral Sacroiliac Joint Fusions And The Importance Of Understanding Potential Coexisting Lumbosacral Pathology That Might Also Require Surgical Treatment / Bruce E. DALL in Acta Orthopaedica Belgica, Vol 81/2 (Juin 2015)
[article]
Titre : Outcomes Of Bilateral Sacroiliac Joint Fusions And The Importance Of Understanding Potential Coexisting Lumbosacral Pathology That Might Also Require Surgical Treatment Type de document : texte imprimé Auteurs : Bruce E. DALL, Auteur ; Sonia V. EDEN, Auteur Année de publication : 2015 Article en page(s) : p.233-239 Langues : Anglais (eng) Mots-clés : Sacroiliac joint fusion surgery, outcomes bilateral lumbosacral algorithm treatment Résumé : Only one study in the literature describes performing a bilateral sacroiliac joint fusion, and the results were poor. Many patients needing a bilateral sacroiliac joint fusion frequently have had previous lumbosacral surgeries and present with lumbosacral pain as well. This study reviews our results in consecutive patients having had a bilateral sacroiliac joint fusion over a five-year period. Fifteen patients had bilateral sacroiliac joint fusions with 13 having concurrent lumbosacral fusions. The modified posterior midline fascial splitting approach, first described by Belanger was utilized. Patients were followed for an average of 30.3 months. There were no infections, neurovascular injuries, lasting morbidity or deaths. One non-union of a sacroiliac joint (7%) occurred, which after revision was satisfactory. There was a statistically significant drop in pain (p = 0.01488) using the VAS, and patient satisfaction rates were 86%. With all those patients saying they would have the surgery again for the same result. There was no significant increase in functionality. Patients needing bilateral sacroiliac joint fusions frequently fall into the “failed back” category, and it is important to evaluate both the sacroiliac joints and the lumbosacral spine for potential pain generators. This study shows that by treating all the pain generators in both areas there were significant decreases in pain, low complications, low re-operation rates, and high patient satisfaction scores. Overall functionality, however, was not positively affected. Permalink : ./index.php?lvl=notice_display&id=40565
in Acta Orthopaedica Belgica > Vol 81/2 (Juin 2015) . - p.233-239[article] Outcomes Of Bilateral Sacroiliac Joint Fusions And The Importance Of Understanding Potential Coexisting Lumbosacral Pathology That Might Also Require Surgical Treatment [texte imprimé] / Bruce E. DALL, Auteur ; Sonia V. EDEN, Auteur . - 2015 . - p.233-239.
Langues : Anglais (eng)
in Acta Orthopaedica Belgica > Vol 81/2 (Juin 2015) . - p.233-239
Mots-clés : Sacroiliac joint fusion surgery, outcomes bilateral lumbosacral algorithm treatment Résumé : Only one study in the literature describes performing a bilateral sacroiliac joint fusion, and the results were poor. Many patients needing a bilateral sacroiliac joint fusion frequently have had previous lumbosacral surgeries and present with lumbosacral pain as well. This study reviews our results in consecutive patients having had a bilateral sacroiliac joint fusion over a five-year period. Fifteen patients had bilateral sacroiliac joint fusions with 13 having concurrent lumbosacral fusions. The modified posterior midline fascial splitting approach, first described by Belanger was utilized. Patients were followed for an average of 30.3 months. There were no infections, neurovascular injuries, lasting morbidity or deaths. One non-union of a sacroiliac joint (7%) occurred, which after revision was satisfactory. There was a statistically significant drop in pain (p = 0.01488) using the VAS, and patient satisfaction rates were 86%. With all those patients saying they would have the surgery again for the same result. There was no significant increase in functionality. Patients needing bilateral sacroiliac joint fusions frequently fall into the “failed back” category, and it is important to evaluate both the sacroiliac joints and the lumbosacral spine for potential pain generators. This study shows that by treating all the pain generators in both areas there were significant decreases in pain, low complications, low re-operation rates, and high patient satisfaction scores. Overall functionality, however, was not positively affected. Permalink : ./index.php?lvl=notice_display&id=40565 Exemplaires (1)
Cote Support Localisation Section Disponibilité Revue Revue Centre de Documentation HELHa Campus Montignies Armoires à volets Document exclu du prêt - à consulter sur place
Exclu du prêt