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Can a 6-month Intervention with a Sit-stand Desk Change Office Workers’ Bioelectrical Impedance Analysis-Derived Phase Angle? A Clustered Randomized Control Trial

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Bibliographic Details
Title: Can a 6-month Intervention with a Sit-stand Desk Change Office Workers’ Bioelectrical Impedance Analysis-Derived Phase Angle? A Clustered Randomized Control Trial
Authors: Pedro G. F. Ramos, Sabrina C. Teno, Hélio Silva, Gil B. Rosa, Pedro B. Júdice
Source: Physical Activity and Health, Vol 9, Iss 1, Pp 55–66-55–66 (2025)
Publisher Information: Ubiquity Press, Ltd., 2025.
Publication Year: 2025
Subject Terms: resistance, sitting time, Medicine (General), R5-920, reactance, sedentary behavior, bioelectrical impedance, phase angle
Description: Introduction: Phase angle (PhA) indicates cell integrity and functionality. High daily sedentary behavior (SB) levels negatively impact health. Sit-stand desk (SSD) interventions reduce sitting time in office workers. No previous study has analyzed the effect of SB reduction in office workers’ PhA. Purpose: This clustered randomized control trial examined changes in PhA in office workers after a 6-month SSD intervention coupled with motivational prompts. Methods: Thirty-eight office workers were assigned to the intervention and control groups. Bioelectrical impedance assessed resistance (R), reactance (Xc), and PhA scores. Results: PhA marginally improved in both groups (Δ ≈ 0.15). The intervention group showed a significantly reduced sitting time. No time interaction or differences between groups were found for PhA (p > 0.05). Conclusions: This SSD intervention coupled with motivational prompts failed to increase workers’ PhA. The marginal improvements in both groups suggest that SB reduction interventions may have to add strategies to increase activity levels to improve PhA levels. Trial registration: https://osf.io/jhgpw.
Document Type: Article
Language: English
ISSN: 2515-2270
DOI: 10.5334/paah.409
Access URL: https://doaj.org/article/2028353a18304dc69a20254ab7791ccb
Accession Number: edsair.doi.dedup.....1a098c3b4a648dd17d83015a71aafb5e
Database: OpenAIRE
Description
Abstract:Introduction: Phase angle (PhA) indicates cell integrity and functionality. High daily sedentary behavior (SB) levels negatively impact health. Sit-stand desk (SSD) interventions reduce sitting time in office workers. No previous study has analyzed the effect of SB reduction in office workers’ PhA. Purpose: This clustered randomized control trial examined changes in PhA in office workers after a 6-month SSD intervention coupled with motivational prompts. Methods: Thirty-eight office workers were assigned to the intervention and control groups. Bioelectrical impedance assessed resistance (R), reactance (Xc), and PhA scores. Results: PhA marginally improved in both groups (Δ ≈ 0.15). The intervention group showed a significantly reduced sitting time. No time interaction or differences between groups were found for PhA (p > 0.05). Conclusions: This SSD intervention coupled with motivational prompts failed to increase workers’ PhA. The marginal improvements in both groups suggest that SB reduction interventions may have to add strategies to increase activity levels to improve PhA levels. Trial registration: https://osf.io/jhgpw.
ISSN:25152270
DOI:10.5334/paah.409