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Muscle blood flow in response to concentric muscular activity vs. passive venous compression

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Abstract:

Abstract Aim: 

To measure muscle blood flow (MBF) using photoplethysmography (PPG) following concentric muscular activity of the leg (active treatment) or passive venous compression (passive treatment) with or without venous obstruction. Methods: 

In study A, blood flow in the anterior tibial muscle was measured in 15 healthy subjects with a mean age of 30 years. In study B, blood flow in the gastrocnemius muscle was measured in nine healthy subjects with a mean age of 34 years. Subjects performed concentric muscular activity in one leg. Passive venous compression by a venous foot pump was applied in the contralateral leg. Results: 

MBF increased significantly following concentric muscular activity, but not following passive venous compression. MBF decreased in both legs when venous obstruction, induced by a thigh tourniquet, was applied. However, MBF was significantly higher following concentric muscular activity than passive venous compression. Conclusion: 

We conclude that concentric muscular activity produces higher MBF values than passive venous compression.

Keywords: ankle joint dorsiflexion and plantar flexion; muscle pump; photoplethysmography

Document Type: Research Article

DOI: http://dx.doi.org/10.1046/j.0001-6772.2003.01215.x

Affiliations: 1:  Department of Orthopaedics, Sahlgrenska University Hospital, Göteborg, Sweden 2:  Department of Biomedical Engineering, Linköping University, Linköping, Sweden

Publication date: January 1, 2004

bsc/aps/2004/00000180/00000001/art00009
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