Klonizakis, Markos (2012) Studying the cutaneous microcirculatory response during upper-limb exercise in healthy, older, sedentary people. Clinical Hemorheology and Microcirculation, 51 (1). pp. 69-75. ISSN 1386-0281

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Abstract

This study investigated changes incurred in cutaneous skin blood flux (SKBF) in the superficial veins of the lower limb by upper limb exercise training in the form of arm-cranking in 14 healthy participants over the age of 50 years. Changes in cutaneous microvascular function of the lower leg were assessed using laser Doppler Flowmetry (LDF) during a 30-minute exercise session undertaken over 4-exercise periods. Both SKBF and Time to reach Peak Perfusion (Tmax) were improved significantly during the 2nd (e.g. 121 (±107.2) vs 280 (±269.1) and 171 (±34.4) vs. 247 (±38.3) respectively) when compared to the first exercise period, while values approaching initial levels in the following stages. The results indicate that the thermoregulatory and vasodilation mechanisms observed during exercise in middle-aged and older healthy people are different to the one appearing in younger age groups, suggesting a more extensive effect of the age-related structural changes than it was previously thought.

Item Type:	Article
Additional Information:	This study investigated changes incurred in cutaneous skin blood flux (SKBF) in the superficial veins of the lower limb by upper limb exercise training in the form of arm-cranking in 14 healthy participants over the age of 50 years. Changes in cutaneous microvascular function of the lower leg were assessed using laser Doppler Flowmetry (LDF) during a 30-minute exercise session undertaken over 4-exercise periods. Both SKBF and Time to reach Peak Perfusion (Tmax) were improved significantly during the 2nd (e.g. 121 (±107.2) vs 280 (±269.1) and 171 (±34.4) vs. 247 (±38.3) respectively) when compared to the first exercise period, while values approaching initial levels in the following stages. The results indicate that the thermoregulatory and vasodilation mechanisms observed during exercise in middle-aged and older healthy people are different to the one appearing in younger age groups, suggesting a more extensive effect of the age-related structural changes than it was previously thought.
Keywords:	Skin blood flow, arm-cranking exercise, skin temperature, perfusion, cutaneous microcirculation
Subjects:	A Medicine and Dentistry > A100 Pre-clinical Medicine
Divisions:	College of Social Sciences > Faculty of Health & Social Sciences > Lincoln School of Health & Social Care
Depositing User:	Users 504951 not found.
Date Deposited:	01 Nov 2011 16:09
Last Modified:	13 Mar 2013 09:03
URI:	http://eprints.lincoln.ac.uk/id/eprint/4764

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