Article

OBJECTIVE: To investigate the validity and reliability of accelerometers to
detect lying, sitting and standing postures or purposeful activity in
hospitalized adults recovering from acute or critical illness. DATA SOURCES: CINAHL, MEDLINE, EMBASE, AMED, Cochrane Library, PEDro, PsycINFO and SPORTDiscuss
were searched from inception to June 2017. Professional networks and reference
lists of relevant articles were also searched. The main selection criteria were
hospitalized adults with acute or critical illness and studies investigating the
validity or reliability of accelerometers to identify body position or purposeful
activity. REVIEW METHODS: Two authors individually assessed study eligibility and
independently undertook methodological quality assessment and data extraction
from selected articles. A narrative synthesis of the data was undertaken.
RESULTS: Fifteen studies, collectively enrolling 385 hospitalized participants,
were identified. Populations included stroke, the elderly, acute exacerbation of
chronic respiratory disease, abdominal surgery and those recovering from critical
illness. Correlations of r = 0.36 to 0.98 and levels of agreement of kappa = 0.28
to 0.98 were reported for identification of lying, sitting or standing postures.
Correlations of r = 0.4 to 0.8 with general activity were found, with r = 0.94
and 0.96 reported for step count. The reliability of accelerometry measurement
was investigated in one study evaluating step count quantification (intraclass
correlation coefficient (ICC) = 0.99, 95% confidence interval (CI) = 0.99-1.00).
CONCLUSION: The validity of accelerometers to determine lying, sitting and
standing postures or quantify purposeful activity within hospitalized acute or
critically ill populations is variable. The reliability of accelerometry
measurement within this setting remains largely unexplored.

Langue : ANGLAIS