An unconditional waiver is basically a waiver of all present and future legal rights. Such a waiver is most often utilized in the construction context by homeowners or professional construction companies wanting to protect themselves from mechanics' liens.
In most cases, a doctor who specializes in sports medicine will do a range of activities on a daily basis. Some of their most common patients are athletes, since sport injuries are very common and most athletic activities involve very forceful play.
After graduating, sports medicine doctors serve a 3-year residency. Because sports medicine is not recognized as a residency training specialty in the United States, most doctors complete a residency in family or emergency medicine before moving on to a 1- or 2-year sports medicine fellowship.