Key result
Acute sport-related concussion significantly decreased prefrontal cortex HbO2 and HbD amplitude at the respiratory frequency interval compared to preseason baseline.
Why the study?
To investigate cerebral hemodynamic activity following sport-related concussion during controlled respiration.
Does sport-related concussion alter cerebral hemodynamic activity during controlled respiration?
Observational
Does sport-related concussion alter cerebral hemodynamic activity during controlled respiration?
Sport-related concussion is associated with a decreased respiratory contribution to cerebral hemodynamic activity.
May support NIRS for concussion hemodynamic monitoring; hypothesis-generating and requires validation before clinical use.
This study investigated cerebral hemodynamic activity following sport-related concussion. Prefrontal cortex oxygenation was assessed by near-infrared spectroscopy (NIRS) during a controlled breathing protocol. Wavelet transformation of the NIRS signals showed significant decreases in HbO2 and HbD amplitude at the respiratory frequency interval (0.10–0.6 HZ) from preseason baseline to acute concussion. These results suggest a decreased respiratory contribution to cerebral hemodynamic activity following acute concussion.
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Ellingson et al. (2024) conducted an observational in sport-related concussion. sport-related concussion vs. preseason baseline was evaluated on HbO2 and HbD amplitude at the respiratory frequency interval (0.10–0.6 HZ). Acute sport-related concussion significantly decreased prefrontal cortex HbO2 and HbD amplitude at the respiratory frequency interval compared to preseason baseline.
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