TY - JOUR
T1 - Transient suppression of heart rate complexity in concussed athletes
AU - La Fountaine, Michael F.
AU - Heffernan, Kevin S.
AU - Gossett, James D.
AU - Bauman, William A.
AU - De Meersman, Ronald E.
N1 - Funding Information:
The authors would like to thank the athletes, coaches and administrators of the Columbia University Athletics Department for their cooperation during this study. Also, special recognition is warranted for the Columbia University sports medicine staff for their professionalism and enthusiasm. The study was conducted in cooperation with the Department of Veterans Affairs Rehabilitation Research and Development Center of Excellence for the Medical Consequences of Spinal Cord Injury (# B4162C) and the VIDDA Foundation.
PY - 2009/6/15
Y1 - 2009/6/15
N2 - Heart rate variability (HRV) and complexity (HRC) were calculated at rest and during an isometric hand grip test (IHGT) within 48-hours (48 h) and two weeks (Week Two) of a concussion in athletes (CG) and control subjects. No differences were present at rest or in HRV during IGHT. HRC was significantly lower in the CG compared to controls at 48 h during IHGT. In CG at Week Two during IHGT, HRC was significantly greater than 48 h observations and not significantly different than controls. The findings suggest that HRC may have utility in detecting efferent cardiac autonomic anomalies within two weeks of concussion.
AB - Heart rate variability (HRV) and complexity (HRC) were calculated at rest and during an isometric hand grip test (IHGT) within 48-hours (48 h) and two weeks (Week Two) of a concussion in athletes (CG) and control subjects. No differences were present at rest or in HRV during IGHT. HRC was significantly lower in the CG compared to controls at 48 h during IHGT. In CG at Week Two during IHGT, HRC was significantly greater than 48 h observations and not significantly different than controls. The findings suggest that HRC may have utility in detecting efferent cardiac autonomic anomalies within two weeks of concussion.
KW - Approximate entropy
KW - Autonomic nervous system
KW - Concussion
KW - Heart rate complexity
KW - Mild traumatic brain injury
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U2 - 10.1016/j.autneu.2009.03.001
DO - 10.1016/j.autneu.2009.03.001
M3 - Article
C2 - 19303821
AN - SCOPUS:67349163203
SN - 1566-0702
VL - 148
SP - 101
EP - 103
JO - Autonomic Neuroscience: Basic and Clinical
JF - Autonomic Neuroscience: Basic and Clinical
IS - 1-2
ER -