Abstract
Objective: To examine relationships between self-reported ankle function and Hoffmann (H) reflex modulation during changes in body positions in patients with chronic ankle instability (CAI). Design: Observational. Setting: Laboratory. Participants: Thirty-one young adults with CAI (19 males, 12 females) participated. Main outcome measures: There were two subscales of Foot and Ankle Ability Measure (FAAM) to quantify self-reported ankle function during activities of daily living (ADL) and sports activities. Maximum H-reflexes (H-max) and motor waves (M-max) from soleus and fibularis longus were recorded while participants lied prone and stood in bipedal and unipedal stances. For each muscle, percent change scores in Hmax:Mmax ratios were calculated between each pair of positions: prone-to-bipedal, bipedal-to-unipedal, and prone-to-unipedal, and used as a measure of H-reflex modulation. Pearson correlation coefficients were calculated between FAAM and H-reflex modulation measures. Results: There were significant correlations between: (1) FAAM-ADL and soleus prone-to-unipedal modulation (r = 0.384, p = 0.04), (2) FAAM-Sport and soleus prone-to-unipedal modulation (r = 0.505, p = 0.005), (3) FAAM-Sport and fibular bipedal-to-unipedal modulation (r = 0.377, p = 0.05), and (4) FAAM-Sport and fibular prone-to-unipedal modulation (r = 0.396, p = 0.04). Conclusions: CAI patients presented moderate, positive relationships between self-reported ankle function and H-reflex modulation during changes in body positions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 63-68 |
| Number of pages | 6 |
| Journal | Physical Therapy in Sport |
| Volume | 17 |
| DOIs | |
| State | Published - Jan 1 2016 |
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Keywords
- Ankle dysfunction
- Fibularis longus
- Soleus
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
Relationships between self-reported ankle function and modulation of Hoffmann reflex in patients with chronic ankle instability. / Kim, Min; Hart, Joseph M.; Saliba, Susan A.; Hertel, Jay.
In: Physical Therapy in Sport, Vol. 17, 01.01.2016, p. 63-68.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Relationships between self-reported ankle function and modulation of Hoffmann reflex in patients with chronic ankle instability
AU - Kim, Min
AU - Hart, Joseph M.
AU - Saliba, Susan A.
AU - Hertel, Jay
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Objective: To examine relationships between self-reported ankle function and Hoffmann (H) reflex modulation during changes in body positions in patients with chronic ankle instability (CAI). Design: Observational. Setting: Laboratory. Participants: Thirty-one young adults with CAI (19 males, 12 females) participated. Main outcome measures: There were two subscales of Foot and Ankle Ability Measure (FAAM) to quantify self-reported ankle function during activities of daily living (ADL) and sports activities. Maximum H-reflexes (H-max) and motor waves (M-max) from soleus and fibularis longus were recorded while participants lied prone and stood in bipedal and unipedal stances. For each muscle, percent change scores in Hmax:Mmax ratios were calculated between each pair of positions: prone-to-bipedal, bipedal-to-unipedal, and prone-to-unipedal, and used as a measure of H-reflex modulation. Pearson correlation coefficients were calculated between FAAM and H-reflex modulation measures. Results: There were significant correlations between: (1) FAAM-ADL and soleus prone-to-unipedal modulation (r = 0.384, p = 0.04), (2) FAAM-Sport and soleus prone-to-unipedal modulation (r = 0.505, p = 0.005), (3) FAAM-Sport and fibular bipedal-to-unipedal modulation (r = 0.377, p = 0.05), and (4) FAAM-Sport and fibular prone-to-unipedal modulation (r = 0.396, p = 0.04). Conclusions: CAI patients presented moderate, positive relationships between self-reported ankle function and H-reflex modulation during changes in body positions.
AB - Objective: To examine relationships between self-reported ankle function and Hoffmann (H) reflex modulation during changes in body positions in patients with chronic ankle instability (CAI). Design: Observational. Setting: Laboratory. Participants: Thirty-one young adults with CAI (19 males, 12 females) participated. Main outcome measures: There were two subscales of Foot and Ankle Ability Measure (FAAM) to quantify self-reported ankle function during activities of daily living (ADL) and sports activities. Maximum H-reflexes (H-max) and motor waves (M-max) from soleus and fibularis longus were recorded while participants lied prone and stood in bipedal and unipedal stances. For each muscle, percent change scores in Hmax:Mmax ratios were calculated between each pair of positions: prone-to-bipedal, bipedal-to-unipedal, and prone-to-unipedal, and used as a measure of H-reflex modulation. Pearson correlation coefficients were calculated between FAAM and H-reflex modulation measures. Results: There were significant correlations between: (1) FAAM-ADL and soleus prone-to-unipedal modulation (r = 0.384, p = 0.04), (2) FAAM-Sport and soleus prone-to-unipedal modulation (r = 0.505, p = 0.005), (3) FAAM-Sport and fibular bipedal-to-unipedal modulation (r = 0.377, p = 0.05), and (4) FAAM-Sport and fibular prone-to-unipedal modulation (r = 0.396, p = 0.04). Conclusions: CAI patients presented moderate, positive relationships between self-reported ankle function and H-reflex modulation during changes in body positions.
KW - Ankle dysfunction
KW - Fibularis longus
KW - Soleus
UR - http://www.scopus.com/inward/record.url?scp=84949634405&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84949634405&partnerID=8YFLogxK
U2 - 10.1016/j.ptsp.2015.05.003
DO - 10.1016/j.ptsp.2015.05.003
M3 - Article
C2 - 26541975
AN - SCOPUS:84949634405
VL - 17
SP - 63
EP - 68
JO - Physical Therapy in Sport
JF - Physical Therapy in Sport
SN - 1873-1600
ER -