Have you ever seen a good sprinter with a weak core? Sprinter’s cores are usually ripped! This is because their core has to anchor and stabilise the considerable rotational forces/torques and angular momentum produced by their arms and legs whilst sprinting. Sprinting is a form of high velocity anti-rotation core training.
So do you want to upsize your core training? Easy! Put wearable resistance on your arms and/or legs and you have increased the angular momentum of the system and therefore the core will need to work harder to stabilise the additional rotational forces/torques. Make sense?
Erin Feser from Arizona State University, shared this with me and it certainly got me thinking. So going for a run with 200 grams wearable resistance attached to the limbs, not only provides a considerable metabolic overload, but you get a core work out at the same time. This is not to mention the strength training that is happening across the joints that you load e.g. loading the thighs/shorts will affect the hip musculature. There’s lots of benefits when you begin moving with wearable resistance.