Abstract
Thoracic hyperkyphosis could affect mobility and independence of older adults. However, there was no clear evidence on the use of the seventh cervical vertebra wall distance (C7WD), a practical measure for thoracic hyperkyphosis, to indicate mobility deficits relating to independence of these individuals. This study explored the ability of C7WD to determine mobility impairments in 104 older adults. Participants (average age of 74.1 ± 7.4years) with various degree of thoracic kyphosis were cross-sectionally measured for their C7WD, mobility, and Cobb angle. The findings indicate that participants with thoracic hyperkyphosis (Cobb angle = 46.1 ± 5.2°) had significantly poorer mobility than those without thoracic hyperkyphosis (Cobb angle = 32.8 ± 5.9°, p < .05). A C7WD of ≥7.8cm could indicate mobility deficits of the participants (sensitivity = 71%-92%, specificity = 75%-94%, and area under the curve >0.80). The findings confirm the ability of C7WD that could be clinically measured using rulers to indicate mobility deficits of older adults.
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