S134 S290
Objective:
To look for the better condition to treat partial tear of
Achilles tendon in immobilization or free mobilization immediate after
injury.
Design:
The pure strains mice divided into 2 groups followed a seven-
day adaptation, given a tenotomy and appropriate treatment based on
its group. In the next seven days, the mice were given LLLT therapy for
4,28J/cm in three minutes alternately. Group 1 we apply casting and
group 2 free mobilization Afterwards, the mice were taken to the
laboratory for microscopic assessment.
Setting:
Animal laboratory, Veterinary medicine faculty, Hasanuddin
University, Indonesia.
Participants:
The 14 pure strains mice.
Interventions:
All mice given a tenotomy and appropriate treatment
based on its group. In the next seven days, the mice were given LLLT
therapy for 4,28J/cm in three minutes alternately. Group 1 we apply
casting and group 2 free mobilization.
Main Outcome Measures:
Histopathology by analyzing its collagen
fiber formation.
Results:
The result showed that the mice with free mobilization
gained better collagen fibers formation than the immobilization ones.
Conclusions:
Histopathology study shows that free mobilization con-
dition promotes healing faster combine with LLLT therapy in partial
tear of Achilles tendon.
Level of Evidence:
Level III
Poster 47:
Effects of Hybrid FES Exercise Training on Anaerobic
Threshold in SCI
Eziamaka C. Okafor, MD (Spaulding Rehab Hosp/Harvard Med Schl),
Daniel W. Brodmerkel, BS, J. Andrew Taylor, PhD
Disclosures:
Eziamaka Okafor: I Have No Relevant Financial Re-
lationships To Disclose
Objective:
Those with spinal cord injury (SCI) have increased risk
for cardiometabolic diseases. This results in part from loss of
metabolically active tissue and reduced aerobic capacity. As such,
individuals with SCI may not be able to achieve minimal exercise
requirements for health benefits. One solution is hybrid functional
electrical stimulation row training (FESRT) that allows involvement
of both innervated upper and electrically stimulated lower body
muscles, to increase active muscle mass during exercise. A further
limiting factor for sustained high intensity exercise is anaerobic
threshold (AT) - the intensity at which the balance of energy
production transitions to primarily anaerobic metabolism. Above
AT, exercise can only be maintained for short periods. It is un-
known if FESRT improves AT. Our aim was to assess the effects of 6
months FESRT on AT in SCI. We hypothesized that AT increases
would be large due to aerobic training of inactive paralyzed
muscle.
Design:
FESRT was 1-3 days/week at intensities of 75-85% peak heart
rate; only individuals who demonstrated increased VO
2
max were
included. AT was derived from the simplified v-slope method during a
maximal FES row test.
Setting:
Cardiovascular FES-Rowing Lab.
Participants:
31 individuals (20-60 years) with C4-T11 grade A SCI
before and after 6 months of training.
Interventions:
Not applicable.
Main Outcome Measures:
Peak aerobic capacity (V0
2
max) and AT
slopes.
Results:
As expected, V0
2
max increased from 1.60+0.13 L/min to
1.82+0.14 L/min, p
<
.05. Surprisingly, after training, AT occurred at a
lower relative exercise intensity: 59 + 3% vs. 55 + 3% VO
2
max, p
¼
.03.
Conclusions:
Despite increases in VO
2
max with FESRT, expected in-
creases in AT did not occur. This suggests that there may be minimal
increase in aerobic capacity in the paralyzed muscle. Thus, a
significant portion of the greater work after FESRT may be due to
increased anaerobic metabolic capacity.
Level of Evidence:
Level I
Poster 48:
Evaluation of a New Technique to Measure Femoral
Articular Cartilage Thickness Using Infrapatellar
Ultrasonographic Imaging
Abir Naguib, MD (Albert Einstein College of Medicine, Bronx, NY,
United States), Se Won Lee, MD, FAAPMR
Disclosures:
Abir Naguib, MD: I Have No Relevant Financial Relation-
ships To Disclose
Objective:
To examine the use of infrapatellar ultrasonographic (US)
imaging in knee extension in measuring distal femoral articular carti-
lage thickness (CT) compared to the traditional suprapatellar view in
knee hyperflexion.
Design:
Retrospective study.
Setting:
PM&R clinic in a university hospital.
Participants:
Twenty healthy volunteers (7 females, 13 males) were
recruited for US evaluation of both knees.
Interventions:
The suprapatellar view was performed in knee hyper-
flexion with the probe placed perpendicularly. The infrapatellar view
was performed in full knee extension with the probe placed on the
patellar tendon at a 60 degree angle tilted towards the femoral
cartilage.
Main Outcome Measures:
The medial femoral condyle (MFC), lateral
femoral condyle (LFC) and interchondylar notch (IN) were evaluated
for CT (in millimeters), cartilage clarity, and presence of osteophytes.
Results:
The mean age of the volunteers was 31.8 4.7 and BMI was
25.8 4.5. US exam showed no abnormal cartilage clarity or osteo-
phytes. CT in the right MFC was 22.8 4.36 on flexion and 23.1 5.02
on extension. In the left MFC it was 23.9 4.6 on flexion and
22.8 3.8 on extension. CT in the right LFC was 23.7 4.4 on flexion and
23.5 4.3 on extension. In the left LFC it was 22.5 4.5 on flexion
and 23.4 4.8 on extension. CT in the right IN was 25.9 5.1 on flexion
and 33.7 6.9 on extension. In the left IN it was 27.6 5.2 on
flexion and 33 7.8 on extension. There was no significant difference in
CT between both methods on measuring at the MFC and LFC. However,
there was a significant difference in CT at the IN in extension versus
flexion (P
<
.05).
Conclusions:
Infrapatellar US imaging in knee extension can be a
reliable approach for assessing CT at the femoral condyles (which are
mainly affected in osteoarthritis) but not at the IN. This can be used as
an alternative method for patients with limited knee flexion due to
pain or effusion.
Level of Evidence:
Level II
Thursday, October 12, 2017
9:30 AM
e
11:00 AM
Room 705, Meeting Room Level
LEADING IN RESEARCH: NEUROLOGICAL REHABILITATION
PODIUM SESSION
Poster 56:
Leisure Time Physical Activity Among Older Adults
with Long-Term Spinal Cord Injury
Jan E. Lexell, MD, PhD (Lund University, Lund, Sweden),
Sophie Jo¨rgensen, MD, Kathleen A. Martin Ginis, PhD, OMC
Disclosures:
Jan Lexell: I Have No Relevant Financial Relationships To
Disclose
S134
Abstracts / PM R 9 (2017) S131-S290