- •The quadriceps activation battery (QAB) is the first clinical battery of tests shown to be related to recovery of activation, strength, and function after total knee arthroplasty (TKA).
- •Timing of assessment of the QAB is critical because patient performance on the QAB was most informative in the initial postoperative period (4d after surgery).
- •The QAB could be used to identify individuals who may need specific interventions such as neuromuscular electrical stimulation to target activation deficits or prolonged physical therapy intervention to achieve optimal results after TKA.
Main Outcome Measures
List of abbreviations:6MWT (6-minute walk test), MVIC (maximum voluntary isometric contraction), NMES (neuromuscular electrical stimulation), OA (osteoarthritis), SCT (stair climbing test), TKA (total knee arthroplasty), TUG (Timed Up and Go)
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Supported by the National Institutes of Health (grant no. R01-HD065900), National Institutes of Health/National Center for Advancing Translational Sciences (grant nos. UL1-TR001082 and NIH T32 AG00279), and the Foundation for Physical Therapy Promotion of Doctoral Studies I and II Scholarships.
Clinical Trial Registration No.: NCT01537328.