Part 2/9:
However, it does have its downsides—increasing the duration can be time-consuming, often leading people to excuse themselves from engaging in any cardio at all. Despite this, walking earns a well-deserved A tier ranking because it promotes health without sacrificing joint integrity.
The Upgrade: Rucking
For bodybuilders seeking to push their cardio routine, rucking—essentially walking with added weight—presents a valuable upgrade.
With the ability to progressively overload, rucking increases calorie burn even over shorter distances. This enhanced form of walking asserts its place in the S tier, solidifying its effectiveness for muscle preservation while achieving cardio benefits.