It appears cockroaches can move objects up to 20 times their body weight. Entomological Expert Witness: Cockroaches. read more
How Much Weight Can A Cockroach Lift - Experiment PDF Use this PDF and you will be able to not only establish the weight lifting power of any cockroach (or any insect for that matter) but also compare it in human size. read more
When you find you can do the last lift (in this case, rep 30), with little effort, it's time to increase the weight. Progressive overload, or adding more weight over time, is a fundamental principle of weight training progression. read more