Weighted pull-ups and dips do more than build the upper body. Used with strict form, these big movements force the abs to stabilize hard and can deliver a serious core-training effect.
Low-pulley knee-ins line up resistance more intelligently than holding a weight between the feet. John Paul shows three cable-based options for loading the abs and hip flexors with better direction of force.
Heavy compound lifts may build more abdominal strength than most people realize. Part 2 explains why squats, deadlifts, pull-ups, and overhead presses deserve a place in serious core training.