In a normal growing child, the US:LS ratio is 1:1 at what age?

In a normal growing child, the US:LS ratio is 1:1 at what age?

7years or 10years ?

7-10 -1:1. in adults 0.9 new born -1.7

7 yrs to 10 yrs

In a normal growing child, the US:LS ratio is 1 at 7-10 years. Thank you.