Annals of Biomedical Engineering

, Volume 36, Issue 8, pp 1420–1427

Exercise-Associated Thermographic Changes in Young and Elderly Subjects

Authors

    • Department of Physical TherapyFederal University of São Carlos
  • Lorena C. S. Mendonça
    • Department of Physical TherapyFederal University of São Carlos
  • Luiz A. O. Nunes
    • Physics Institute of São CarlosUniversity of São Paulo
  • Antônio C. C. Andrade Filho
    • Physics Institute of São CarlosUniversity of São Paulo
  • José R. Rebelatto
    • Department of Physical TherapyFederal University of São Carlos
  • Tania F. Salvini
    • Department of Physical TherapyFederal University of São Carlos
Article

DOI: 10.1007/s10439-008-9512-1

Cite this article as:
Ferreira, J.J.A., Mendonça, L.C.S., Nunes, L.A.O. et al. Ann Biomed Eng (2008) 36: 1420. doi:10.1007/s10439-008-9512-1

Abstract

This study aimed at evaluating the thermographic changes associated with localized exercise in young and elderly subjects. An exercise protocol using 1 kg load was applied during 3 min to the knee flexors of 14 elderly (67 ± 5 years) and 15 young (23 ± 2 years) healthy subjects. The posterior thigh’s skin temperature of the exercised limb and contralateral limb were measured by infrared thermography on pre-exercise, immediately post-exercise, and during the 10-min period post-exercise. Difference (p < 0.01) between elderly and young subjects was observed on pre-exercise temperature. Although differences were not observed between pre-exercise and immediately post-exercise temperature in the exercised limb, thermographic profile displayed heat concentration in exercised areas for both groups. Temperature reduction was only observed for the young group on the 10-min post-exercise (p < 0.05) in the exercised limb (30.7 ± 1.7 to 30.3 ± 1.5 °C). In contrast, there was a temperature reduction post-exercise (p < 0.01) in the contralateral limb for both groups. These results present new evidences that elderly and young subjects display similar capacity of heat production; however, the elderly subjects presented a lower resting temperature and slower heat dissipation. This work contributes to improve the understanding about temperature changes in elderly subjects and may present implications to the sports and rehabilitation programs.

Keywords

Warm-upSkin temperatureInfrared thermographyAging

Copyright information

© Biomedical Engineering Society 2008