would find it hard to credit anything other than our thighs. And for good reason. The muscles that make up our upper legs drive our running – whether we’re sprinting for 100 yards or battling our way through 26.2 miles. Run enough hills and you
fascia, the tendon or its surrounding sheath can become inflamed when overworked, causing Achilles tendinitis. "This is often an overuse injury," says Weldon. "The Achilles tendon is overstretched because of the tilting of the heel during extended
– to 12 o’clock – with your right foot, lowering yourself into a lunge position. Return to the standing position. Keeping your supporting leg in the same position, lunge forward again, this time diagonally to 1 o’clock. Repeat the lunge to 2 o
