Adachi D, Yamada M, Nishiguchi S, Fukutani N, Hotta T, Tashiro Y, Morino S, Shirooka H, Nozaki Y, Hirata H, Yamaguchi M, Aoyama T. Age-Related Decline in Chest Wall Mobility: A Cross-Sectional Study Among Community-Dwelling Elderly Women. J Am Osteopath Assoc 2015;115(6):384–389. doi: 10.7556/jaoa.2015.079.
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Context: Chest wall mobility is strongly related to respiratory function; however, the effect of aging on chest wall mobility—and the level at which this mobility is most affected—remains unclear.
Objective: To investigate age-related differences in chest wall mobility and respiratory function among elderly women in different age groups.
Methods: This cross-sectional observational study was performed in Himeji City in Hyogo Prefecture and Ayabe City in Kyoto Prefecture in Japan. Inclusion criteria were female sex, age 65 years or older, community resident, and ability to ambulate independently, with or without an assistive device. Thoracic excursion at the axillary and xiphoid levels and at the level of the tenth rib was measured with measuring tape. Respiratory function, including forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1), was assessed by spirometry, and FVC percent predicted (%FVC), FEV1 percent predicted (%FEV1), and FEV1/FVC were calculated. Chest wall mobility and respiratory function were compared among 4 age groups.
Results: Of 251 potential participants, 132 met the inclusion criteria. Participants were divided into 4 age groups: group 1, 65 to 69 years; group 2, 70 to 74 years; group 3, 75 to 79 years; and group 4, 80 years or older. Statistically significant differences were found in thoracic excursion at the axillary level between groups 1 and 4 and between groups 2 and 4 when adjusted for height and weight (F4.52, P=.01). In addition, statistically significant differences were found in the FVC and FEV1 values between groups 1 and 3 and between groups 2 and 3 (FVC: F4.97, P=.01; FEV1: F6.17, P=.01).
Conclusion: Chest wall mobility at the axillary level and respiratory function decreased with age in community-dwelling women aged 65 years or older. Further longitudinal studies are required to clarify the effects of aging on chest wall mobility and respiratory function.
a Data are given as mean (SD).
b Significant differences between groups 1 and 3 and between groups 2 and 3.
c Significant difference between groups 1 and 4.
d Significant difference between groups 1 and 4 and groups 2 and 4.
e Adjusted for participant height and weight using analysis of covariance; other parameters were analyzed for analysis of variance.
Abbreviations: FEV1, forced expiratory volume in 1 second; %FEV1, FEV1 percent predicted; FVC, forced vital capacity; %FVC, FVC percent predicted.
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