Defining accelerometer cut-points for different intensity levels in motor-complete spinal cord injury.
Spinal Cord
; 58(1): 116-124, 2020 Jan.
Article
em En
| MEDLINE
| ID: mdl-31243318
ABSTRACT
STUDY DESIGN:
Descriptive.OBJECTIVE:
The present aim was to define accelerometer cut-point values for wrist-worn accelerometers to identify absolute- and relative-intensity physical activity (PA) levels in people with motor-complete paraplegics (PP) and tetraplegics (TP). SETTINGS Rehabilitation facility in Sweden.METHODS:
The participants were 26 (19 men, 7 women) with C5-C8, AIS A and B (TP) and 37 (27 men, 10 women) with T7-T12 (PP), AIS A and B. Wrist-worn accelerometer recordings (Actigraph GT3X+) were taken during seven standardized activities. Oxygen consumption was measured, as well as at-rest and peak effort, with indirect calorimetry. Accelerometer cut-points for absolute and relative intensities were defined using ROC-curve analyses.RESULTS:
The ROC-curve analyses for accelerometer cut-points revealed good-to-excellent accuracy (AUC >0.8), defining cut-points for absolute intensity (2, 3, 4, 5, 6, 7 METs for PP and 2 to 6 METs for TP) and relative intensity (30, 40, 50, 60, 70, and 80% for PP and 40-80% for TP). The cut-points for moderate-to-vigorous physical activity was defined as ≥9515 vector magnitude counts per minute (VMC) for PP and ≥4887 VMC/min for TP.CONCLUSION:
This study presents cut-points for wrist-worn accelerometers in both PP and TP, which could be used in clinical practice to describe physical activity patterns and time spent at different intensity levels.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Paraplegia
/
Quadriplegia
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Traumatismos da Medula Espinal
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Exercício Físico
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Acelerometria
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Limite:
Adult
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article