ArticleFrontiers in sports and active living2025
Challenges in upright limb occlusion pressure determination with the Delfi PTS: pilot data from two independent cohorts.
Article in Frontiers in sports and active living, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: Blood flow restriction (BFR) exercise prescription relies on accurate determination of limb occlusion pressure (LOP), which is known to vary by body position. While recent guidelines suggest assessing LOP in the same position as the intended exercise, the feasibility of upright LOP assessment remains uncertain. Methods: This pilot study evaluated the feasibility of seated and standing LOP assessment using the Delfi Personalized Tourniquet System (PTS) under multiple postural and cueing conditions. Two separate and independent cohorts ( Results: LOP was unable to be determined in enough participants within and between cohorts to be able to compare reliability of LOP measured between conditions. Therefore, Cochran's Conclusion: Seated and standing LOP assessment using the Delfi PTS appears largely unfeasible, regardless of cueing or postural modifications. These findings question the feasibility of implementing seated or standing LOP measurements using the Delfi PTS in research and practice and suggest that future BFR research and application may benefit from supine LOP determination, or from developing dynamic calibration protocols suited for upright exercise.
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