The world No. 4 has been involved in 18 tournaments this year - winning two of them - and has played 58 matches in the process.
Murray fears that being forced to compete so regularly, with mandatory tournaments and world ranking points to defend, will reduce the time he spends at the top of the game. He is proposing a longer off-season following the year's final grand slam, the US Open, which comes to a close in September.
"There's no time for you to take a break to get rid of an injury," Murray said. "Instead players end up playing through it and that actually shortens careers. There should be fewer mandatory tournaments because you get punished so much for being injured and I don't really think that's fair.
"If after the US Open you had two or three months when you could actually take time off to recover, players would have longer careers."
Murray's 59th clash of 2010 comes on Wednesday at the Paris Masters, where he takes on the dangerous David Nalbandian in round two. The Scot, who has never been beyond the quarter-finals in Paris, has lost two of the three meetings between the players.