Layci J. Harrison, PhD, LAT, ATC; Lindsey K. Lepley, PhD, ATC; Dana K. Fuller, PhD; Jennifer L. Caputo, PhD, CSCS, MX
Athletic Training and Sports Health Care. https://doi.org/10.3928/19425864-20181107-01
Abstract
PURPOSE:To evaluate cross-over effect balance training after knee surgery.
METHODS:Individuals with a history of knee surgery (N = 10) were randomized to balance training or control groups. The non-surgical leg was trained three times a week for 6 weeks. Stability of surgical and non-surgical limbs was measured using the Biodex Balance System (BBS) (Biodex Medical System, Inc., Shirley, NY) and the Overall Stability Index. Dynamic postural control was assessed with the Y-Balance Test (YBT).
RESULTS:Stability and dynamic postural control increased in the untrained surgical leg after training the non-surgical leg (BBS eyes open: P = .023, Cohen’s dt1–t3 = 2.68 strong; YBT: P = .030, Cohen’s dt1–t3 = −1.59 strong). Balance was not significantly different between legs, but did trend toward improvement (BBS eyes open: Cohen’s dt1–t3 = 1.66 strong; YBT: Cohen’s dt1–t3 = −1.73 strong).
CONCLUSIONS:Cross-over effect training increased stability and dynamic postural control in the untrained leg. These initial findings support cross-over effect training for balance rehabilitation after knee surgery.