More from ASIA - Measuring Motor Function

The third part of the ASIA exam tests motor function. It determines the presence, and quantifies the functionality, of 10 key muscles – five upper–extremity, and five lower–extremity, on each side – each of which indicates a specific level of ability.

Key Muscles
elbow flexion (C-5)	hip flexion (L-2)
wrist extension (C-6)	knee extension (L-3)
elbow extension (C-7)	ankle dorsiflexion (L-4)
finger flexion (C-8)	toe extension (L-5)
finger abduction (T-1)	ankle plantar flexion (S-1)

Each of the 10 muscles are tested just as you'd imagine – the doctor or therapist administering the exam asks the patient to move the specific muscle, e.g., "lift your finger up toward the ceiling" or "point your big toe down toward the floor", and such.

From the doctor's or therapist's end, this part can get a little tricky because there are different degrees of muscle function and people who have spinal cord injuries can often flex or contract a muscle without having full use of it, so the doctor or therapist has to feel for muscle movement. As a standard method of quantifying motor function, they use the six–point Motor Grading Scale.

Motor Grading Scale
0 = no active movement
1 = muscle contraction (also called "trace" or "muscle trace"
2 = movement through range of motion (ROM) without gravity
3 = movement through ROM against gravity
4 = movement against some resistance
5 = movement against full resistance

From my end, much like the sensory part, this part of the exam gets a little frustrating. Although I am well aware of the intent behind their asking, being repeatedly urged to move things we both know I can't move is often exasperating. I always give it the old college try when prompted, but nothing ever happens when I'm asked to, say, bend my knee. They always stand there, expectantly, hands on my leg and focusing intently, and I try to move, and nothing happens, and I can't help but feel as if I've failed them somehow. Perhaps my being able to effectively perform only one of the 10 movements (elbow flexion) listed above contributes to that sentiment. I debate diagnostic measures in my head but, for some reason, no amount of rationalizing seems to quash that lingering sense of failure to perform. Logic be damned, some things you just can't argue yourself out of.

This particular point of contention I've long had with the AISA exam is somewhat alleviated, and also somewhat amplified, by the circumstances of my therapy at the ICSCI. It's less vexing when I'm asked to move because I know they're trying to assess and track my progress in therapy (rather than, as it has often seemed to me in the past, satisfy some idle curiosity), but it also heightens that sense of failure because I feel like I should be accomplishing more – as if I should be making faster, better progress in therapy, and my performance during the ASIA exam should reflect that improvement.

Though I never actually expect to move, I still manage to be disappointed when I don't; I can't help but feel that whomever is administering the exam is disappointed, as well. It's rather silly, really. It's not as if I could study for the exam. But, again, no amount of rationalization seems to allay my inner critics. (I have my own personal peanut gallery, but that is a story for another day.)

What I find more exasperating than any other aspect of the ASIA exam is when I feel the muscle move but they don't. I know it's there; I can feel it, I can flex it, I can intentionally, purposefully cause it to contract. Or can I? While I realize that the movement is weak and thus difficult to detect, I'm sure it's there. I'm sure I'm moving it. I'm sure, that is, until the doctor or therapist is unable to detect it.

That particular frustration is typically fleeting, because I know that if I can feel it – even if they can't – there is a connection. Something is getting through. A nerve impulse is making the trip, unmarred and uninterrupted, from my brain to the muscle – that means there is the distinct possibility for improvement.

I know this from experience. I can remember sitting in the OT/PT gym at NRH, not long after I was injured, telling the therapist that there was something in my left arm – that I could flex my biceps. She tested and retested, but felt nothing. It was three years before I was able to lift my hand up to my face; two more years passed before my biceps was strong enough to reliably drive my chair. Who knows if it would've come back at all, if I hadn't been so stubborn and kept trying to move my arm until it did. Who knows how much faster it would've returned if I'd had the kind of therapy practiced at the ICSCI.