McAlpine David A, Manohar Chinmay U, McCrady Shelly K, Hensrud Donald, Levine James A
Mayo Clinic, 200 First St SW, Rochester 55905, USA.
Br J Sports Med. 2007 Dec;41(12):903-7. doi: 10.1136/bjsm.2006.034900. Epub 2007 May 18.
It was proposed that an office-place stepping device is associated with significant and substantial increases in energy expenditure compared to sitting energy expenditure. The objective was to assess the effect of using an office-place stepping device on the energy expenditure of lean and obese office workers.
The office-place stepping device is an inexpensive, near-silent, low-impact device that can be housed under a standard desk and plugged into an office PC for self-monitoring. Energy expenditure was measured in lean and obese subjects using the stepping device and during rest, sitting and walking. 19 subjects (27+/-9 years, 85+/-23 kg): 9 lean (BMI<25 kg/m2) and 10 obese (BMI>29 kg/m2) attended the experimental office facility. Energy expenditure was measured at rest, while seated in an office chair, standing, walking on a treadmill and while using the office-place stepping device.
The office-place stepping device was associated with an increase in energy expenditure above sitting in an office chair by 289+/-102 kcal/hour (p<0.001). The increase in energy expenditure was greater for obese (335+/-99 kcal/hour) than for lean subjects (235+/-80 kcal/hour; p = 0.03). The increments in energy expenditure were similar to exercise-style walking.
The office-place stepping device could be an approach for office workers to increase their energy expenditure. If the stepping device was used to replace sitting by 2 hours per day and if other components of energy balance were constant, weight loss of 20 kg/year could occur.
有人提出，与坐着时的能量消耗相比，办公室踏步装置能显著大幅增加能量消耗。目的是评估使用办公室踏步装置对瘦型和肥胖型办公室职员能量消耗的影响。
办公室踏步装置是一种价格低廉、近乎静音、低冲击力的装置，可放置在标准办公桌下并插入办公电脑进行自我监测。使用踏步装置以及在休息、坐着和行走期间，测量瘦型和肥胖型受试者的能量消耗。19名受试者（27±9岁，85±23千克）：9名瘦型（体重指数<25千克/平方米）和10名肥胖型（体重指数>29千克/平方米）参加了实验办公设施测试。在休息时、坐在办公椅上时、站立时、在跑步机上行走时以及使用办公室踏步装置时测量能量消耗。
与坐在办公椅上相比，办公室踏步装置使能量消耗增加了289±102千卡/小时（p<0.001）。肥胖型受试者（335±99千卡/小时）的能量消耗增加幅度大于瘦型受试者（235±80千卡/小时；p = 0.03）。能量消耗的增加幅度与运动式步行相似。
办公室踏步装置可能是办公室职员增加能量消耗的一种方式。如果每天使用踏步装置代替坐着2小时，并且能量平衡的其他组成部分保持不变，每年可能减重20千克。
