As people age, their muscle mass and strength declines which is extremely concerning for those over the age of 40. This aging process not only causes muscle weakness, it also restricts the amount of physical activity one can facilitate at an older age. Research shows that people over the age of 50 had more than 15% strength loss per decade. A reduced amount of physical activity can lead to lower extremity weakness. Muscle weakness can lend itself to the onset of fatal falls which account for 30-40% of older adults injuries. However, keeping your legs strong and reducing the amount of muscle loss as you age can be very easy. Here are some simple ways to keep your legs strong and healthy: