Key result
Recent sports-related concussion was associated with lower resting heart rate variability (percent high-frequency power 23 vs 38; P=0.0027), which normalized to control levels during a cognitive task.
Why the study?
Does a cognitive task alter heart rate variability in collegiate athletes during the acute phase following a concussion compared to noninjured controls?
Population
46 male and female collegiate athletes, comprising 23 athletes evaluated 4 ± 1 days following a…
Comparison
2-Back cognitive task involving executive… vs Resting state and noninjured matched controls
Design
Case-control
Authors
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Altered HRV patterns in acute concussion may indicate autonomic changes; leaves open whether they aid recovery monitoring or return-to-play decisions.
Case-Control (n=46)
Does a cognitive task alter heart rate variability in collegiate athletes during the acute phase following a concussion compared to noninjured controls?
Absolute Event Rate: 23% vs 38%
p-value: p=.0027
Cognitive tasks performed early after concussion may increase prefrontal cortex functioning, as indicated by increased heart rate variability, potentially expediting return to learn.
Huang et al. (2018) conducted a case-control in Sports-related concussion (n=46). Sports-related concussion vs. Sports- and sex-matched noninjured controls was evaluated on Heart rate variability quantified as percent high-frequency (HF) power at rest (p=.0027). Recent sports-related concussion was associated with lower resting heart rate variability (percent high-frequency power 23 vs 38; P=0.0027), which normalized to control levels during a cognitive task.
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