An injury is not an excuse to avoid training. You can always do something.
This past winter we trained:
1 Athlete who has a heart condition where his heart rate is not to go above 150 BPM.
2 People with their arms in casts
2 Others who had restrictions that prevented them from using one of their arms.
Countless athletes who's bodies are beat up from practice, PE class, a snow ball fight gone awry....
With an expert staff and solid programming, training can be modified to work around those problems and still get a training effect.
In my early days I used to train a lot of athletes who were rehabilitating after ACL reconstructions. At that time it was a minimum 6 month recovery from the day of surgery until a possible return to sports. Those who sat around only focusing on their knee rehab would later find out that even though their knee had been cleared for activity their body wasn't ready- add an additional 2 months to get back in fighting shape.
When they could walk we started conditioning. Rehab the knee and then focus on the rest of the body. These turned into 2 hour training sessions near the end.
Once the Orthopedic determined their knee was good to go, their body was as well. They could go to practice that same day or the next. A week later they were in games.
You can sit on the couch and wait for everything to be perfect- which may never happen, obstacles have a way of popping up one after the other. Or you can keep training and be ready when the time is right.
