The pull-up bar is one of the most adaptable and effective pieces of home kit you can buy. It uses your own bodyweight to work a vast range of muscle groups in ways that are near impossible to replicate on regular gym equipment. The fact that you are hanging freely means that every move engages your core in order to stabilise your body. And the mixture of static muscle contractions with regular flexion and extension movements hits your muscle fibres from all angles. In short, there’s almost nothing it cant do.