(3pts extra credit) The GRAFO is designed to leverage the gr…

(3pts extra credit) The GRAFO is designed to leverage the ground reaction moment at the ankle to stabilize the knee during stance.  A solid pretibial shell replaces the pretibial strap of a traditional AFO and serves as a surface area for the transfer of the ground reaction force (GRF).  The GRAFO transfers the GRF though a solid ankle to the anterior tibia, creating a mechanical plantarflexion moment at the ankle.  The result is a knee extension moment through mid and terminal phases of stance.   A patient with crouch gait is evaluated for new bilateral GRAFOs.  A limited physical assessment was performed, and the presence of bilateral hip flexion contractures was missed by the clinician.  What would the resulting deviation be if both of the patient’s ankles were locked at 90 degrees in the GRAFOs?

Table 1: DDL create table R (col_a char primary key, co…

Table 1: DDL create table R (col_a char primary key, col_b char ); create table S (col_c char primary key, col_d char, foreign key (col_d) references R(col_a) ); insert into R values (‘a’, ‘d’), (‘b’, ‘e’), (‘c’, ‘f’); insert into S values (‘p’, ‘a’), (‘q’, ‘b’), (‘r’, ‘c’), (‘s’, ‘a’), (‘t’, ‘b’); Based on Table 1: DDL, Show the result of each SQL query below. Use a table or put each row on a separate line with fields separated by tabs so that the columns line up. Clearly separate answers. select R.A, T.C from R, T where R.A = T.B order by R.A, T.C; select distinct R.A, T.C from R, T where R.A = T.B order by R.A, T.C; select R.A, COUNT(T.C) AS C_COUNT from R, T where R.A = T.B group by R.A;