Journal
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
Volume 91, Issue 5-6, Pages 737-740Publisher
SPRINGER-VERLAG
DOI: 10.1007/s00421-004-1060-2
Keywords
flow-sensitive image; flow-sensitive alternating inversion recovery image; perfusion; intramuscular; water cryotherapy
Categories
Ask authors/readers for more resources
This study assessed the effects of cooling on blood flow and intramuscular water content in human skeletal muscles after exercise using magnetic resonance imaging. In six male subjects, their legs were randoinly assigned to be control or to be cooled. All subjects performed ankle dorsiflexion exercise inside an imaging magnet and after exercise, an ice bag was placed on the ankle dorsiflexors of the cooled leg. Flow-sensitive images, which reflect both perfusion and intramuscular water, were obtained before and up to 270 s post-exercise at 30-s intervals. The flow-sensitive alternating inversion recovery (FAIR) images, which extract only the perfusion change, were also obtained. Signal intensity (SI) in the ankle dorsiflexors was estimated before and after exercise in both flow-sensitive and FAIR images. On the flow-sensitive images, the control leg increased SI 30-270 s after exercise (P < 0.05), but the cooled leg showed no significant change. On the FAIR images, the control leg increased SI 30-270 s post-exercise (P < 0.05), while the cooled leg increased SI 30-150 s and 2 10 s after exercise (P < 0.05). The findings suggest that cooling attenuates the perfusion elevation and prevents the oedema formation in skeletal muscle immediately after exercise.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available