1 minute rest is OK to increase your overall fitness level, to build lactic acid tolerance or just to go lighter and give your joints a rest. But to build size and strength you need to go heavier and that means longer rest between sets. You have to allow the ATP and glycogen stores to build back up for the next heavy set. Take 3, 4, 5 or more minutes if you need it. But in the long run just vary your routine to avoid both mental and physical burnout.