Originally Posted by stringertom
Slow HCs (AO Plexicushion) now offer the toughest test on joints, tendons and ligaments. Six-hour grindfests are now no longer contested solely on the dirt.
If two courts are of comparable speed but one is on hard court and the other on clay, the clay court is, overall, the harder on the body to play on. This makes me think people are not necessarily getting injured by the hard courts, rather the increased amount of long matches they now play due to the general slowing of conditions.
Something most people don't seem to realise is that clay is actually a harder surface than some rubberised hard courts. Secondly, because the footing is less sure, you waste more energy when pushing off etc - even more again if you're struggling or the court is particularly dusty.