Abdominal muscle strains among professional baseball players has been increasing over the past two decades, occurring more frequently early in the season, according to a study published in the American Journal of Sports Medicine.

The number of professional baseball players with instances of abdominal muscle strains increased over the past two decades, according to a study published in the American Journal of Sports Medicine.

Mark Myerson, MD, an ankle specialist who has treated several professional athletes, recently performed surgery on Philadelphia Phillies first baseman Ryan Howard to repair a torn Achilles tendon, according to a Delaware Online report.

Here are five studies about shoulder injuries and treatments. For points two through five, the information was gathered from studies published in American Journal of Sports Medicine.

Nonoperative treatment for latissimus dorsi and teres major injuries in Major League Baseball pitchers can be successful in returning the athletes to play, according to a report published in American Journal of Sports Medicine.

Injuries among Major League Baseball players resulting in being placed on the disabled list is common, with the most prevalent injuries including upper extremity conditions in pitchers and lower extremity injuries among position players, according to research published in The American Journal of Sports Medicine.

Here are 84 orthopedic and sports medicine physicians who serve as team physicians for Major League Baseball teams in 2011. Information was not available for all teams.

Here are 10 orthopedic surgeons who performed 12 surgeries on Major League Baseball players so far this season.

Charles Bush-Joseph, MD, an orthopedic surgeon at Midwest Orthopaedics at Rush in Chicago, recently discussed common baseball injuries and safety precautions that Major League Baseball players take to avoid them on Comcast SportsNet, according to a practice news release.