This is the story of my client Phil. Though only in his mid-20s years of high level volleyball left him with a damaged knee. Three ACL tears and five knee surgeries later the doctors put him on the bench and told him to wait until medical technology improved enough to offer him a solution. No more hiking, surfing or rock climbing. Simply stepping off a curb presented a challenge. Fast forward less than a year later and, after consistent hard work, Phil has safely summited Half Dome and can hike over the most rugged terrain. To learn some specific exercises for how we strengthened his knee to accomplish this, read on.