@article{ref1,
title="The predictive capacity of the Buffalo Concussion Treadmill Test after sport-related concussion in adolescents",
journal="Frontiers in neurology",
year="2019",
author="Haider, Mohammad N. and Leddy, John J. and Wilber, Charles G. and Viera, Kaitlin B. and Bezherano, Itai and Wilkins, Kimberly J. and Miecznikowski, Jeffrey C. and Willer, Barry S.",
volume="10",
number="",
pages="e395-e395",
abstract="The Buffalo Concussion Treadmill Test (BCTT) identifies the heart rate threshold (HRt) of exercise tolerance in concussed patients. A previous study found that an absolute HRt of < 135 bpm was associated with prolonged recovery (>30 days) from sport-related concussion (SRC). In this study, we assessed the relationship of ΔHR (difference between resting HR and HRt) and recovery from SRC. Using a retrospective cohort design, we compared acutely (<10 days since injury) concussed adolescents who were prescribed either (1) relative rest (RG, <i>n</i> = 27, 15.2 ± 1 years, 33% female, median 17 days to recovery, ΔHR = 69.6 ± 28 bpm), (2) a placebo-stretching program (PG, <i>n</i> = 51, 15.4 ± 2 years, 49% female, median 17 days to recovery, ΔHR = 60.9 ± 22 bpm), or (3) sub-threshold aerobic exercise (AG, <i>n</i> = 52, 15.3 ± 2 years, 46% female, median 13 days to recovery, ΔHR = 62.4 ± 26 bpm). Linear regression showed that ΔHR significantly correlated with duration of clinical recovery for RG (<i>p</i> = 0.012, <i>R</i><sup>2</sup> = 0.228) and PG (<i>p</i> = 0.011, <i>R</i><sup>2</sup> = 0.126) but not for AG (<i>p</i> = 0.084, <i>R</i><sup>2</sup> = 0.059). ΔHR values were significantly lower in participants with prolonged recovery (>30 days) in RG (<i>p</i> = 0.01) and PG (<i>p</i> = 0.04). A ΔHR of ≤50 bpm on the BCTT is 73% sensitive and 78% specific for predicting prolonged recovery in concussed adolescents who were prescribed the current standard of care (i.e., cognitive and physical rest).<p /> <p>Language: en</p>",
language="en",
issn="1664-2295",
doi="10.3389/fneur.2019.00395",
url="http://dx.doi.org/10.3389/fneur.2019.00395"
}