나이가 증가함에 따라 근력이 약해지고 협응력이 떨어지므로 앉아서 일어서는 동안 소요되는 시간은 노인이 젊은 성인보다 더욱 길게 나타났다.
As age increases, muscle strength weakens and coordination decreases, so that the time spent sitting and standing was longer in older grownups than more youthful grownups.