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Rhythmic Interlimb Coordination Impairments and the Risk for Developing Mobility Limitations.

Eric G James1, Suzanne G Leveille2, Jeffrey M Hausdorff3,4,5

  • 1Department of Physical Therapy, University of Massachusetts, Lowell.

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
|December 9, 2016
PubMed
Summary
This summary is machine-generated.

Impaired ankle and shoulder coordination in older adults are significant risk factors for developing mobility limitations. Early identification of these coordination impairments can aid in prevention and treatment strategies.

Keywords:
AgingCoordinationInterlimbMobilityRisk

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Area of Science:

  • Gerontology
  • Rehabilitation Science
  • Movement Science

Background:

  • Identifying novel rehabilitative impairments is crucial for preventing and treating mobility limitations in older adults.
  • Rhythmic interlimb coordination of ankles and shoulders may represent such impairments.
  • This study investigated if impaired coordination is a risk factor for future mobility issues.

Purpose of the Study:

  • To test the hypothesis that impaired rhythmic interlimb ankle and shoulder coordination are risk factors for subsequent mobility limitations in older adults.
  • To quantify the association between coordination variability and asymmetry and the development of mobility limitations.

Main Methods:

  • A 1-year prospective cohort study involved 99 community-dwelling older adults (aged 67+) without baseline mobility limitations.
  • Participants performed antiphase coordination tasks (ankles or shoulders) paced by a metronome.
  • Multivariable logistic regression analyzed odds ratios for mobility limitations based on coordination variability and asymmetry.

Main Results:

  • Impaired variability in ankle coordination (OR=1.88) and shoulder coordination (OR=1.96) significantly predicted mobility limitations.
  • Shoulder coordination asymmetry (OR=2.11) also predicted mobility limitations, but ankle asymmetry did not (OR=0.95).
  • Results remained significant after adjusting for covariates like age, BMI, and chronic conditions.

Conclusions:

  • The findings support that impaired interlimb ankle and shoulder coordination are risk factors for developing mobility limitations in older adults.
  • Further research is needed to explore underlying mechanisms and test interventions aimed at improving coordination.
  • Enhancing coordination may be a potential strategy to mitigate mobility decline.