Lower limb blood flow and mean arterial pressure during standing and seated work: Implications for workplace posture recommendations

Autor: Lauren Cormier, Linda L. Miller, Julie N. Côté, David M. Antle, Megan Findlay
Rok vydání: 2018
Předmět:
Zdroj: Preventive Medicine Reports
Preventive Medicine Reports, Vol 10, Iss, Pp 117-122 (2018)
ISSN: 2211-3355
DOI: 10.1016/j.pmedr.2018.02.016
Popis: Sit-stand workstations are a popular workplace intervention. Organizations often require a medical professional's guidance for implementation. Therefore, it is important to understand potential negative outcomes associated with standing work, such as lower limb discomfort and peripheral vascular issues. The objective of this study was to compare changes in lower limb discomfort, blood pressure and blood flow accumulation during a light-load repetitive upper limb work task accomplished from seated and standing postures. At the Jewish Rehabilitation Hospital (Laval, Quebec, Canada), 16 participants were outfitted with Laser Doppler Flow (LDF) electrodes to measure blood flow in the lower limb, and a sphygmomanometer to measure lower limb mean arterial blood pressure (MAP). Participants completed simulated work over 34 min in standing and seated conditions. Repeated measures ANOVAs (Posture x Time) were used to assess the differences. There were significant effects for both Posture (p = 0.003) and Time (p = 0.007) for LDF-measured of blood flow accumulation in the soleus and the foot, with a mean increase of 77% blood flow over time in the standing posture, when compared to seated work. There was a significant ‘Posture × Time’ (p = 0.0034) interaction effect and a significant Posture (p = 0.0001) effect for MAP, with higher values in the standing posture by a mean of 37.2 mmHg. Posture had a significant effect (p
Highlights • Standing work has become popular as a mean of reducing sedentary seated work. • Very little research on lower limb outcomes during standing work has been completed. • We compared standing/seated lower limb blood flow, blood pressure and discomfort. • Standing work led to mean 77% greater lower limb blood flow and 37.2 mm Hg greater MAP. • This suggests that recommendations for stationary standing work should be tempered.
Databáze: OpenAIRE