Effects of leg compression and calf muscle contraction by active ankle motion on venous hemodynamics in sitting individuals. (June 2022)

• Record Type: Journal Article
• Authors: Suehiro, Kotaro; Morikage, Noriyasu; Harada, Takasuke; Samura, Makoto; Nagase, Takashi; Takeuchi, Yuriko; Mizoguchi, Takahiro; Ike, Soichi; Suzuki, Ryo; Hamano, Kimikazu
• Is Part Of: Phlebology. Volume 37:Number 5(2022)
• Page Start: 361
• Page End: 366
• Publication Date: 2022-06
• Subjects: compression stockings -- venous pump -- air plethysmography; Veins -- Diseases -- Periodicals; 616.14
• DOI: 10.1177/02683555221077741
• Languages: English
• ISSNs: 0268-3555

Abstract

Objectives: To clarify the effects of compression and active ankle motion on venous hemodynamics in healthy sitting individuals. Methods: In the sitting position, 14 participants performed plantar flexion and dorsiflexion of the ankle for 3 s each without compression. Changes in the calf volume were recorded using air plethysmography. Subsequently, the process was repeated with the application of tubular elastic bandage (TEB), followed by anti-thrombotic stocking (ATS). Results: The median interface pressure at the calf was 16 mmHg with TEB and 21 mmHg with ATS. Without compression ( N ), the median venous volume was 76 mL. This was reduced to 58 mL with TEB and 56 mL with ATS ( p < .01 vs. N for both). On the other hand, ejection volume by plantar flexion in N (27 mL) was not significantly changed with TEB (31 mL) or ATS (31 mL). Also, ejection volume by dorsiflexion in N (53 mL, p < .001 vs. plantar flexion) was not significantly changed with TEB (53 mL, p < .01 vs. plantar flexion) or ATS (41 mL, p < .05 vs. plantar flexion). Conclusions: The venous volume, which is defined as the change in enclosed calf volume from elevation to dependency, in the sitting position reduced similarly with TEB and ATS; however, the ejection volumes did not change significantly. Dorsiflexion exerted a larger ejection volume than plantar flexion in the sitting position.