DIY Trunk Floor Board for BMW E30 Project

Sam Dutney | Online Rowing Coach on Instagram: "It’s not your classic “ab circuit” In rowing, the “core training” should be “trunk trainingl because the goal is force transfer rather than visible movement. The trunk/torso’s main role is to: Transfer force from the legs to the handle Maintain spinal position under load Resist flexion, extension, and rotation For that reason, the most effective trunk training is driven by deliberately choosing exercises for a specific result and not by doing exerc