C7: Triceps and Flexor Carpi Radialis

Execution triceps brachii:

1. The patient is in sitting position
2. Ask the patient to flex the elbows to 90°
3. The examiner then applies a flexion force, while the patient is asked to resist the movement

 

Execution flexor carpi radialis:

1. The patient is in sitting position with the wrist over the edge of the table and the dorsal aspect of the forearm on the treatment table
2. The examiner applies a downward pressure into wrist extension and the patient is asked to resist the movement

 

Positive Outcome: Decreased strength rated with the MRC scale compared to the other side

 

Study	Reliability	Sn	Sp	LR+	LR-
Wainner et al. (2003): Triceps brachii	Inter-rater к=0.29	12	94	1.9	0.94
Wainner et al. (2003): Flexor carpi radialis	Inter-rater к=0.23	6	89	1.05	0.55
Schmid et al. (2009)	Inter-rater к=0.45	NA	NA	NA	NA