Jo Konta is the first British woman since Jo Durie to reach a quarter final. The 24-year-old was born in Sydney but became British in 2012. She is set to burst onto the British tennis scene after winning in Australia.
Lunges work the hamstring muscles when you step forward and backward. When stepping forward, the front hip and knee flex as your weight is transferred onto that leg. The hamstrings work to resist the downward pull of gravity, known as an eccentric contraction. They also help stabilize the knee.
1 A similar machine exercises your hamstring muscles, on the back of your thighs. 2  Lie stomach down on the bench and hook your heels under a bar. 3  When you bend your legs and pull the bar upwards, you exercise the back of your legs. 4  The leg lunge is a safe and effective method of working the legs.