Background Reduced hip adduction strength has been identified as a key predisposing factor in developing hip and groin injuries. The Copenhagen adduction programme has been shown to increase hip adduction strength in semiprofessional footballers but can cause muscle soreness. Therefore. a modified progressive Copenhagen adduction (MPCA) programme has been designed to increase hip addu... https://www.roneverhart.com/Corvette-Spark-Plugs-Set-NGK-Iridium-IX-1992-1995-C4/