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"Video game playing increases food intake in adolescents"
청소년에게 미치는 비디오 게임의 영향에 대한 연구, 특히 정신적 혹은 정서적 측면에서만 다루어져 왔던 것들이 이제는 다른 방향에서 조명될 필요가 있다고 느끼는 제목이었습니다.
With the use of a randomized crossover design, 22 healthy, normal-weight, male adolescents (mean ± SD age: 16.7 ± 1.1 y) completed two 1-h experimental conditions, namely video game play and rest in a sitting position, followed by an ad libitum lunch. The endpoints were spontaneous food intake, energy expenditure, stress markers, appetite sensations, and profiles of appetite-related hormones.
실험 디자인은 22명의 아이들을 각 1시간씩 앉아서 비디오 게임을 하게하고, 끝나고 얼마나 식욕이 증가했을까를 보는 단순한 것인데...
Heart rate, systolic and diastolic blood pressures, sympathetic tone, and mental workload were significantly higher during the video game play condition than during the resting condition (P < 0.05). Although energy expenditure was significantly higher during video game play than during rest (mean increase over resting: 89 kJ; P < 0.01), ad libitum energy intake after video game play exceeded that measured after rest by 335 kJ (P < 0.05). A daily energy surplus of 682 kJ (163 kcal) over resting (P < 0.01) was observed in the video game play condition. The increase in food intake associated with video game play was observed without increased sensations of hunger and was not compensated for during the rest of the day. Finally, the profiles of glucose, insulin, cortisol, and ghrelin did not suggest an up-regulation of appetite during the video game play condition.
비디오 게임 이후에 에너지 소모량(89kJ)도 늘어났지만, 반면 에너지 섭취량(335kJ)이 더 늘어난걸 보면 결과가 그렇게 나쁘지는 않았네요. "ad libitum"이란 용어가 낯선데, 마음껏 먹게 했다는 라틴어 접두사 정도로 보면 될 것 같습니다.
A single session of video game play in healthy male adolescents is associated with an increased food intake, regardless of appetite sensations.
"건강한 남자 청소년에게 한차례의 비디오 게임은 식욕과는 별개로 음식 섭취를 증가 시키는 것과 관계가 있다." 결론 좋네요:)
Source : Am J Clin Nutr published 13 April 2011, 10.3945/ajcn.110.008680