RESTING ENERGY-EXPENDITURE, SUBSTRATE USE, AND VIDEO TAPES

Objective-To investigate the effect of watching different types of vid eo on energy expenditure. Design-Randomised study assessing ''pleasant ,'' an ''amusing,'' an ''exciting,'' and no video film clips. Subjects -12 volunteers who did not know the purpose of the study. Main outcome measures-Changes in energy expenditure, substrate use, heart rate, an d aural temperature during each film clip. Results-Energy expenditure was raised slightly (0 . 21 kJ/day) during the ''exciting'' film, Indi vidual responses varied greatly. Conclusion-Watching different types o f video seems to have little effect on resting metabolic rate.