What is Thomas Test?
Thomas test is Basically , done for hip flexor contractures .
Mainly done for tightness of hip flexors muscle.
Especially for Iliopsoas muscle tightness.
And muscles including like rectus femoris, Tensor fascia lata, gracillis and sartorius.
To perform this test, take the patient in supine position.
Then check the Patients lumbar lordosis .
Because generally the Patients have a high lumbar lordosis in hip flexors contractures.
Then ask the patient , to flex the hip and take it till, chest through his / her hand .
Ask the patient , if he/ she is feeling stretch in contralateral leg.
It can also done on edge of the table.
Also Read about:-Speed’s test
Positive sign for This test:-
In case of positive sign , the contralateral limb would be lifted .
Thus showing tightness of Iliopsoas muscle .
You can also measure the knee extension .
Sign to check for biceps femoris?
It is an hamstring muscle .
So we woukd rule out biceps femoris, if there is lateral/ external rotation of tibia in contralateral limb.
J sign in Thomas test?
If the contralateral limb is abducting, the iliotibial band would be tight.
Thus showing the J sign in this test.
Relevancy of this test?
The sensitivity of the test is 31%.
The specificity of the test is 57%.
Studies on Thomas test?
Studies onThis test is very Limited and confined.
But 1 study told that modified thomas test has very good inter-reliability.
Further studies are required for relevancy and interpretation.