专家说，体重增加是因为运动量减少。

Experts say weight gain results from less movement.

youdao

它们不仅总体上的运动量减少了，而且不再象老鼠通常会做的那样去打洞；而且这些现象还伴随着抑郁和焦虑”，他说。

Not only was there reduced locomotion generally, they didn't burrow in the way that mice normally do, and that's associated with depression and anxiety, " he said."

youdao

尽管运动量看起来很小，但对于增强体质、减少身体脂肪和降血压却有明显效果。

Although the amount of exercise appears small, the benefits were clear in improving physical fitness and reducing body fat and blood pressure.

youdao