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.
Skater Lunge. Works: Quads, hamstrings, glutes. Start with feet shoulder-width apart and arms at side. Take a giant step back with left leg, crossing it diagonally behind right leg, while extending right arm out to side and swinging left across hips (A). Hop about 2 feet to the left and repeat on opposite side (B). This is 1 rep. Do 3 sets of 20 reps.