Correct

腰板儿

/ yāobǎnr /
Strokes

Example

As a Noun

waist and back

1
Tǐng
挺起
yāo
bǎnr
板儿

straighten up

As a Noun

body; physique; build

2
Lǎorén
老人
shí
八十
duō
le
yāobǎnr
腰板儿
hái
tǐng
yìnglǎng
硬朗

The old man is well over eighty but is still strong-bodied.

3
Yāo
bǎnr
板儿
yìng

be strong