PURPOSE: The Sensory Organization Test (SOT) assesses impairments in postural control following acute concussion. Head Shake Sensory Organization Test (HS-SOT) is a superior test that challenges the vestibular system to help detect more subtle deficits missed by SOT. The purpose of this study was to assess the accuracy of the HS-SOT in identifying residual impairments of postural control in individuals with self-reported history of concussion. METHODS: The Ohio State University-Traumatic Brain Injury Identification Method (OSU TBI-ID) determined self-reported history of concussion while NeuroCom was used to perform HS-SOT. Twenty-nine subjects were included (11 males and 18 females, mean age 25.2 ± 3.7; history of concussion: n= 14, 5 males and 9 females, mean age 25.7±3.5; no concussion: n= 15, 6 males and 9 females, mean age 24.8±4.0). Independent T-Tests were completed to determine performance differences based on history of concussion. RESULTS: HS-SOT fixed surface equilibrium ratio was similar (p = 0.988) between those without a history of concussion (0.998 ± 0.024) and those with a history of concussion (0.998 ± 0.026). Furthermore, HS-SOT sway reference surface equilibrium ratio was also similar (p = 0.431) between those without a history of concussion (0.871 ± 0.128) and those with a history of concussion (0.9136 ± 0.160). Within subjects with a history of concussion, younger subjects (23.4 ± 0.8) had a lower sway index compared to older (30.3 ± 3.6) individuals (0.85 ± 0.11 vs 1.09 ± 0.16, p=0.021). In addition, the younger group trended toward a more recent history of a concussive event (4.7 ± 4.8 vs. 8.0 ± 3.4, p=0.25). CONCLUSIONS: There was no difference in HS-SOT in subjects with or without a history of concussion demonstrating an inability to detect performance impairments. Of those with a concussion, the HS-SOT significantly identified subtle performance deficiencies in younger individuals, suggesting that time from concussion tends to normalize sub-clinical deficits. This indicates that postural control impairments initially persist but resolve over time, which may place individuals at risk for injury during this window of recovery.