YOU SAID:

Old mice showed lower level of locomotor activity.

INTO JAPANESE

古いマウスは、運動活動のレベルが低かった。

BACK INTO ENGLISH

Older mice had lower levels of motor activity.

INTO JAPANESE

高齢のマウスは、運動活性のレベルが低かった。

BACK INTO ENGLISH

Older mice had lower levels of motor activity.