Body composition shown to affect energy spent standing versus sitting

Findings support increased standing time as a simple way to boost energy expenditure
PLOS One
June 12, 2019
Written by PLOS One
Body composition shown to affect energy spent standing versus sitting
Photo by Icons8 team on Unsplash
A person's body composition could influence the difference between the amount of energy they spend while sitting versus standing, according to new research published in the open-access journal PLOS ONE. Conducted by Francisco J. Amaro-Gahete of the University of Granada, Spain, and colleagues, this work adds to mounting evidence that more energy is expended while standing than while sitting or lying down.

Sedentary lifestyles are linked to increased risk for a variety of health conditions, including diabetes, obesity, and cancer. The difference in energy a person expends while standing versus sitting or lying down may be a key factor influencing health risks, but previous studies have found conflicting results about the actual size of these differences. Also, body composition—the proportion of fat in a person's body—could impact these differences, but its role has been unclear.

To address these issues, Amaro-Gahete and colleagues measured energy expenditure differences between lying, sitting, and standing for 55 young adults aged 18 to 25. In line with previous research, the participants burned significantly more kilocalories per minute while standing than while sitting or lying, while no difference was seen for sitting versus lying.

Notably, the researchers also examined associations between energy expenditure in different positions and body composition of the participants. They found no significant associations when comparing energy spent lying versus sitting or lying versus standing. However, they did find that participants with a higher lean body mass had a smaller difference in energy spent sitting versus standing.

These findings lend new support to the idea that a simple way for a person to increase their energy expenditure is by increasing their time spend standing. The results could also aid efforts to better understand, monitor, and counteract sedentary lifestyles.

Amaro-Gahete adds: "Increasing the time spent standing could be a simple strategy to increase energy expenditure."

Citation: Amaro-Gahete FJ, Sanchez-Delgado G, Alcantara JMA, Martinez-Tellez B, Acosta FM, Merchan-Ramirez E, et al. (2019) Energy expenditure differences across lying, sitting, and standing positions in young healthy adults. PLoS ONE 14(6): e0217029.https://doi.org/10.1371/journal.pone.0217029

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