The Upper Quarter Y Balance Test (UQYBT) was developed as a clinical test for upper extremity function. It involves the patient setting themselves in the push-up position and reaching in three different directions - medial, supero-lateral, and infero-lateral.
The subject is required to stabilise through the other upper limb (Amasay, Hall, Shapiro, & Ludwig, 2016) use this stability to allow mobility. It can be used to assess the dynamic stability of the upper extremity and the thoracic spine, including any differences between sides, and can assist in the prediction of shoulder injury risk and whether an athlete is ready to return to play (Amasay et al., 2016).
Additional research has revealed interesting implications when using the UQYBT including:
Limited data exists in the literature to date
Two studies found there was no difference in UQYBT performance between dominant and non-dominant limbs. This indicates that UQYBT performance may serve as a good measure in return to sport testing when rehabilitating shoulder and arm injuries. (Westrick et al 2012, Gorman et al 2012)
The UQYBT is a reliable upper extremity closed kinetic chain test that can be used to assess unilateral upper extremity function in a closed chain manner. The UQYBT appears to be most related to dynamic tests involving core stability and upper extremity performance. (Westrick et al 2012)
Clinicians are recommended to test patients in both a fatigued and non-fatigued state for more accurate return to play decision-making and injury risk identification (Salo, & Chaconas)
Using a patient’s unaffected side is the most reliable measure of determining any deficits when assessing the affected side (Westrick, Miller, Carow, & Gerber, 2012)
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