Associations between muscle strength, spirometric pulmonary function and mobility in healthy older adults
Sillanpää, E., Stenroth, L., Bijlsma, A.Y., Rantanen, T., McPhee, J. S., Maden-Wilkinson, T. M., Jones, D. A., Narici, M. V., Gapeyeva, H., Pääsuke, M., Barnouin, Y., Butler-Browne, G. S., Meskers, C. G., Maier, A. B., Törmäkangas, T., & Sipilä, S. (2014). Associations between muscle strength, spirometric pulmonary function and mobility in healthy older adults. Age, 36(4), Article 9667. https://doi.org/10.1007/s11357-014-9667-7
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AgeAuthors
Date
2014Discipline
BiomekaniikkaGerontologia ja kansanterveysGerontologian tutkimuskeskusHyvinvoinnin tutkimuksen yhteisöBiomechanicsGerontology and Public HealthGerontology Research CenterSchool of WellbeingCopyright
© American Aging Association 2014. This is an author's final draft version of an article whose final and definitive form has been published by American Aging Association (Springer). Published in this repository with the kind permission of the publisher.
Background: Pathological obstruction in lungs leads to severe decreases in muscle
strength and mobility in patients suffering from chronic obstructive pulmonary
disease. The purpose of this study was to investigate the interdependency between
muscle strength, spirometric pulmonary functions and mobility outcomes in healthy
older men and women, where skeletal muscle and pulmonary function decline
without interference of overt disease.
Methods: 135 69 to 81‐yr‐old participants were recruited into the cross‐sectional
study, which was performed as a part of European study MyoAge. Full, partial and no
mediation models were constructed to assess the interdependency between muscle
strength (handgrip strength, knee extension torque, lower extremity muscle power),
spirometric pulmonary function (FVC, FEV1 and FEF50) and mobility (6‐min walk and
Timed Up and Go tests). The models were adjusted for age, sex, total fat mass, body
height and site of enrolment.
Results: Partial mediation models, indicating both direct and pulmonary function
mediated associations between muscle strength and mobility, fitted best to the data.
Greater handgrip strength was significantly associated with higher FVC, FEV1 and
FEF50 (p<0.05). Greater muscle power was significantly associated with better
performance in mobility tests.
Conclusions: Results suggest that decline in mobility with aging may be caused by
decreases in both muscle strength and power, but also mediated through decreases
in spirometric pulmonary function. Future longitudinal studies are warranted to
better understand how loss of function and mass of the respiratory muscles will
affect pulmonary function among older people and how these changes are linked to
mobility decline.
...
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Springer Netherlands; American Aging AssociationISSN Search the Publication Forum
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