|
|
| Spence Rehabilitation Center |
| 9305 Calumet Ave. Suite C-1 |
| Munster, IN 46321 |
| Phone |
: (219) 513-2267 |
| Fax |
: (219) 836-1276 |
|
|
|
|
 |
| |
|
 |
What Are Some Potential Causes of Muscle |
|
|
Weakness? |
|
|
|
|
| 1. |
Disorders of the brain: |
|
Stroke, brain tumors, meningitis, multiple scleroisis, etc. |
|
|
| 2. |
Disorders of the spinal cord: |
|
Myelopathy, spinal cord metastasis from cancer, |
|
arteriovenous malformations, abscess from infection. |
|
|
| 3. |
Radiculopathies: |
|
Pinched nerves can be caused by disc herniations or |
|
spinal stenosis. |
|
| 4. |
Compression Mononeuropathies: |
|
pinched nerves elsewhere in the body such as at |
|
the arms or legs. Some examples are carpal tunnel |
|
syndrome which is compression of the median nerve |
|
at the wrist. |
|
|
| 5. |
Peripheral Polyneuropathies: |
|
Many of the nerves in the body are affected particularly |
|
in the arms and legs. Common causes include diabetes, |
|
alcohol use, toxins. Etc. |
|
|
| 6. |
Neuromuscular Junction disorders: |
|
A disorder involving where the nerve and muscle |
|
communicates. The disorder can be due to broken |
|
neurotransmitters, improperly working receptors |
|
at the muscle, etc. One example is Myesthenia |
|
Gravis. |
|
| 6. |
Myopathy: |
|
A disorder of the muscle. The muscle can be inflamed |
|
also known as myositis or have a structural problem |
|
which is known as muscular dystrophy. |
|
| 7. |
Dislocated kneecap (patella): |
|
Caused by direct trauma or forceful straightening of the |
|
leg. If present, you will notice the patella being out of |
|
place and may have difficulty flexing or extending your |
|
knee. |
|
|
|
 |
What are some Important things to consider in the |
|
|
patient history? |
|
|
|
| 1. |
Family History: |
|
Hereditary disorders include Duchennes Muscular |
|
Distrophy. |
|
|
| 2. |
Recent viral infections: |
|
Can hint at West Nile Virus or Guillain Barre. |
|
|
| 3. |
Recent exposure to toxins: |
|
Such as alcohol, lead. |
|
|
| 4. |
Other Medical Problems: |
|
Diabetes and thyroid problems can result in neuropathies. |
|
|
|
|
|
|
 |
What are some symptoms that can accompany |
|
|
muscle weakness? |
|
|
|
| |
| 1. |
Choking or difficulties swallowing |
|
| 2. |
Shortness of breath |
|
| 3. |
Slurred speech or difficulties talking |
|
| 4. |
Poor exercise tolerance |
|
| 5. |
Numbness and tingling |
|
| 6. |
Spasticity |
|
7. |
Joint pain |
|
| 8. |
Fatigue |
|
| 9. |
Difficulty climbing stairs, combing hair, or rising from |
|
a chair |
|
|
|
|
 |
What are important factors to consider on |
|
|
physical exam? |
|
|
|
|
| |
| 1. |
Inspection: |
|
For muscle atrophy which is muscle wasting. |
|
|
| 2. |
Muscle tenderness: |
|
Could mean inflammation of the muscle also known |
|
|
as myositis. |
|
|
| 3. |
Muscle strength: |
|
Which muscles are weak? Is the weakness symmetric |
|
or asymmetric? |
|
| 4. |
Reflexes: |
|
If they are absent it can mean a problem with the |
|
peripheral nerve or muscle while brisk reflexes can |
|
mean there are brain and spinal cord problems. |
|
|
|
| |
|
|
| |
|
|
| |
|
|
|
|
|
|
|
|
| |
 |
What laboratory studies are important when |
|
|
evaluating for Muscle weakness? |
|
|
|
1. |
Elevation of plasma muscle enzymes: |
|
|
|
(creatine kinase, aldolase, lactate dehydrogenase, and |
|
|
|
the aminotransferases) are highly suggestive of muscle |
|
|
|
diseases. |
|
|
|
|
2. |
Urinalysis: |
|
|
|
A positive test for urine blood, in the absence of red |
|
|
|
blood cells in the sediment, is suggestive of |
|
|
|
myoglobinuria. |
|
|
|
|
3. |
Labs to evaluate for Inflammatory diseases: |
|
|
|
Antinuclear antibodies, antibodies against extractable |
|
|
|
nuclear antigens (anti-Ro/SSA, anti-La/SSB, anti-Sm, |
|
|
|
and anti-RNP) |
|
|
|
|
4. |
Labs to check for Myositis anti-histidyl-t-RNA synthase |
|
|
|
[anti-Jo-1] |
|
|
|
|
5. |
Labs to check for vasculitis Anti-neutrophil cytoplasmic |
|
|
|
antibody (ANCA) titers, hepatitis B and C serologies |
|
|
|
|
6. |
Genetic Testing: |
|
|
|
If there is a family history of muscle weakness |
|
|
|
|
7. |
Electrolytes: |
|
|
|
Metabolic abnormalities particularly calcium and |
|
|
|
magnesium are associated with weakness |
|
|
|
|
|
|
|
|
|
|
 |
What tests can be used to evaluate for Muscle |
|
|
weakness? |
|
|
|
| |
| 1. |
X-rays of the spine |
|
| 2. |
CT or MRI of the Brain and Spinal Cord |
|
| 3. |
Bone Scan |
|
| 4. |
EMG and Nerve Conduction Studies: |
|
Can look for abnormalities of the peripheral nerve, |
|
the neuromuscular junction that attaches the muscle |
|
and nerve, and the muscle itself. |
|
| 5. |
Muscle Biopsy: |
|
A small sample of the muscle is taken and sent to a |
|
pathologist to look for abnormalities. |
|
|
|
 |
Treatment of Muscle Weakness: |
|
|
|
Treatment options will vary depending on the diagnosis, |
|
|
medical comorbidities, and disease severity. |
|
|
|
 |
Physical Therapy |
|
| 1. |
Moderate Resistance Strengthening Exercises: |
|
Performed two to three times a week for eight to twelve |
|
weeks can be helpful. |
|
|
a. |
It is important not to over exercise particularly in |
|
|
patients with certain nerve and muscle disorders |
|
|
such as Muscular Dystrophy and Amyotrophic |
|
|
Lateral Sclerosis. |
|
|
b. |
Also, isometric exercises are less likely to cause |
|
|
muscle injury while eccentric exercises should be |
|
|
avoided (for examples of isometric and eccentric |
|
|
exercises, please refer to the physical therapy link). |
|
|
c. |
Patients that develop severe muscle cramping or |
|
|
muscle heaviness should inform their doctor. |
|
|
|
|
|
|
|
|
| |
| 2. |
Submaximal, Low impact Aerobic Exercises: |
|
Such as walking, swimming, and using the stationary |
|
bicycle can help minimize fatigue and improve heart |
|
fitness. |
|
| 3. |
Range-of-Motion and Stretching exercises: |
|
Should be performed daily to keep the joints moving |
|
properly and minimizes the likelihood of joint stiffness |
|
which is also known as contracture. If a contracture |
|
does develop, splinting can help to regain the joints |
|
range of movement. |
|
| 4. |
Gait training: |
|
A term used by doctors and therapists when they want |
|
you to practice walking and provide you with safe |
|
walking practices. The therapist can help you work on |
|
visual cues and balance techniques |
|
| 5. |
Transfer training: |
|
Strategies to safely move from your bed to your |
|
wheelchair, etc. |
|
| 6. |
Bracing: |
|
Can help to support the weak extremity and allow you |
|
to perform activities that would be difficult without its |
|
use. One example is an ankle-foot-orthosis which can |
|
be used for a person with foot drop to support a weak |
|
ankle and allow them to walk. |
|
| 7. |
Assistive Devices: |
|
Are used to improve mobility in a person with . |
|
weakness. Examples of assistive devices include |
|
canes, walkers, and wheelchairs. A doctor and |
|
qualified physical therapist are well trained to |
|
determine which device is most appropriate for |
|
your situation. |
|
|
|
 |
Occupational Therapy |
|
|
|
|
| |
| 1. |
Energy Conservation techniques |
|
| 2. |
Adaptive Equipment Evaluation: |
|
certain devices can be attached to your wheelchair |
|
or arm and used to perform daily activities. For |
|
example, a universal cuff is commonly prescribed |
|
for patients with poor grasp to hold a spoon or fork. |
|
Another example is a balanced forearm orthosis |
|
which is sometimes used for upper arm weakness. It |
|
is attached to the wheelchair to support the arm and |
|
helps eliminate the effects of gravity. |
|
|
|
| |
|
|
|
|
|
|