Denise R Kaufman1, Mallory J Puckett1, Mitchell J Smith1, Kyle S Wilson2, Rebecca Cheema3, Merrill R Landers4. 1. Department of Physical Therapy, University of Nevada, Las Vegas, USA. 2. Athletic Training, University of Nevada, Las Vegas, USA. 3. Physical Therapist Assistant Program, Pima Medical Institute, Las Vegas, NV, USA. 4. Department of Physical Therapy, University of Nevada, Las Vegas, 4505 Maryland Parkway, Box 453029, Las Vegas, NV 89154-3029, USA. Electronic address: merrill.landers@unlv.edu.
Abstract
OBJECTIVES: The purpose of this study was to establish reliability and responsiveness of the dynamic visual acuity test (DVAT) at head speeds of 150-200 degrees per second (deg/s) and the gaze stabilization test (GST) in high school and college football players. DESIGN: Reliability design. PARTICIPANTS: Fifty high school and college football athletes completed the DVAT and GST in both the yaw (horizontal) and pitch (vertical) planes twice within two weeks. RESULTS: Test-retest reliability for the DVAT was good in yaw, Intraclass Correlation Coefficient (ICC) = 0.770, and moderate/good in pitch, ICC = 0.725. Minimal detectable change (MDC) was 0.16 logMAR for yaw and 0.21 logMAR for pitch. GST reliability was moderate in yaw, ICC = 0.634, and poor in pitch, ICC = 0.411. MDCs were 73.4 deg/s (yaw) and 81.2 deg/s (pitch). CONCLUSIONS: The DVAT is reliable at high head speeds in high school and college football athletes in both yaw and pitch. GST head speeds were higher than previously reported in the literature, but reliability of this tool for this population was poor to moderate. From a clinical perspective, DVAT may be reliably used in the assessment of high school and college football athletes; however, GST requires further evaluation.
OBJECTIVES: The purpose of this study was to establish reliability and responsiveness of the dynamic visual acuity test (DVAT) at head speeds of 150-200 degrees per second (deg/s) and the gaze stabilization test (GST) in high school and college football players. DESIGN: Reliability design. PARTICIPANTS: Fifty high school and college football athletes completed the DVAT and GST in both the yaw (horizontal) and pitch (vertical) planes twice within two weeks. RESULTS: Test-retest reliability for the DVAT was good in yaw, Intraclass Correlation Coefficient (ICC) = 0.770, and moderate/good in pitch, ICC = 0.725. Minimal detectable change (MDC) was 0.16 logMAR for yaw and 0.21 logMAR for pitch. GST reliability was moderate in yaw, ICC = 0.634, and poor in pitch, ICC = 0.411. MDCs were 73.4 deg/s (yaw) and 81.2 deg/s (pitch). CONCLUSIONS: The DVAT is reliable at high head speeds in high school and college football athletes in both yaw and pitch. GST head speeds were higher than previously reported in the literature, but reliability of this tool for this population was poor to moderate. From a clinical perspective, DVAT may be reliably used in the assessment of high school and college football athletes; however, GST requires further evaluation.
Authors: Carolina P Quintana; Tamara C Valovich McLeod; Anne D Olson; Nicholas R Heebner; Matthew C Hoch Journal: Sports Med Date: 2021-01-05 Impact factor: 11.136
Authors: Pamela M Dunlap; Anne Mucha; Dana Smithnosky; Susan L Whitney; Joseph M Furman; Michael W Collins; Anthony P Kontos; Patrick J Sparto Journal: J Am Acad Audiol Date: 2018-11-29 Impact factor: 1.664