Effects of leaning workstation on oxygenation in the prefrontal cortex and cognitive performance

Children and adults in the United States typically spend 55% of their waking time as a sedentary behavior [1]. Prolonged sitting and sedentary work have been associated with many negative health outcomes including the risk of work-related musculoskeletal disorders (MSDs) [2], cardiovascular disorders [3], impaired cognition [4], and type II diabetes [5]. It is known that moderate to vigorous physical activity could lower the rates of morbidity and mortality [6]. To make sedentary work more dynamic, several studies have examined the efficacy of various engineering controls such as the sit-stand desks and walking while working [7-9]. It was found that these interventions could significantly reduce the sitting time and improve the posture and productivity, although the long-term health benefits have not been proven. Previous studies have shown that capillary blood glucose responses and energy expenditure of 10 subjects were significantly alternated during standing deskwork than a sitting deskwork [7]. Even though standing or walking while working Purpose: The objective of this study was to evaluate the effect of different workstations on prefrontal brain activity and cognitive performance during standardized neurocognitive tasks.