Core strength and stability is very important to me. Tennis is all about rotation of the body and my ability to create power. I incorporate a lot of abdominal, back and glute exercises into my gym sessions.

Stosur frames tennis power not as brute arm strength but as a whole-body kinetic chain driven by the trunk. By emphasizing rotation, stability, and targeted work for the abdominals, back, and glutes, she highlights how elite performance depends on transferring force efficiently from the ground through the hips and core into the stroke. The quote also reflects a modern, sports-science approach to training: injury prevention and consistency come from stabilizing muscles as much as from developing prime movers. Implicitly, she presents “core” as both a performance engine (power generation) and a control system (balance, timing, and repeatable technique under pressure).