Intrinsic injuries occur through variables that you are able to control to prevent yourself from an injury - such as through preventative treatment such as osteopathy.
Examples of intrinsic injuries are:
A torn hamstring or calf muscle whilst sprinting
This can be caused by a shortened stride length due to sitting at a desk or in a vehicle during a working day and injuries occur whilst sprinting and, typically, towards the end of the match when fatigue has started to set in.
Increased muscle and tendon injuries
This can occur through a greater emphasis on fitness training or endurance training. Front thigh (quadriceps) and calf muscles absorb the shock of landing after a lineout, putting pressure on the Achilles tendon which is liable to tear, especially in older players.
Back and neck pain
This is more prevalent in forwards than in backs due to the increase load on the spine in scrums, rucks and mauls.
With an osteopath monitoring your musculoskeletal system they can treat for any problems and develop a tailored exercise plan around your daily routune to minimise and prevent injury.
Source: Dr Guy Ashburner, Health24, updated August 2011.