Hemodynamic Function of Forearm Muscle in Postmenopausal Women with Type 2 Diabetes

Luca Pollonini, Lauren Gulley Cox, Stacey L. Gorniak

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Changes in the hemodynamic function of muscle are speculated as a causal mechanism for reduced motor capabilities with aging in Type 2 diabetes mellitus (DM). The focus of this study was to evaluate changes in muscle oxygenation during sustained force production in postmenopausal women with DM compared with controls. Near-infrared spectroscopy was used to monitor deoxyhemoglobin and oxyhemoglobin in the flexor digitorum superficialis. Sensorimotor function and health state covariates were also assessed. Increased deoxyhemoglobin was found during force production, whereas oxyhemoglobin remained constant. Changes were found in the time structure of the hemodynamic data during force production. No between-group differences were found; instead, measures covaried with the health state. Sex-based differences in the manifestation of DM-related sensorimotor dysfunction are likely. These data indicate that basic cardiovascular health measures may be more beneficial to monitoring hyperemic status and muscle function in postmenopausal women with DM, compared with DM diagnosis.

Original languageEnglish (US)
Pages (from-to)723-730
Number of pages8
JournalJournal of Aging and Physical Activity
Volume28
Issue number5
DOIs
StatePublished - Oct 1 2020

Keywords

  • Health state markers
  • Hyperemic response
  • Near-infrared spectroscopy
  • Sex-based differences

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation
  • Gerontology
  • Geriatrics and Gerontology

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