Day 12 is a two-part day with the abs circuit, and this time the knee-to-elbows are paired with side leg raises. Part 1 is 45 minutes of walking; Part 2 is 10 knee-to-elbows, 10 side leg raises and 20 march steps, no rest, 3 to 5 sets by level. Side leg raises are the standing version drawn on the card: hands on hips, one straight leg lifts out to the side, toes pointing forward, and lowers with control. Ten is 5 per side.
Walking is a straight-line activity. The legs go forward and back, forward and back, and the muscles on the outside of the hip - the ones that keep the pelvis level each time you stand on one foot - work constantly but never through a range. Side leg raises give them one. Lifting the leg sideways trains the outer hip directly, and keeping the torso upright while it lifts trains the obliques on the opposite side, which is why it sits so well next to the standing side crunch. Between the two exercises, the whole waist gets worked in a plane walking never visits. March steps keep the legs honest at the end.
In the knee-to-elbow, keep the crunch sideways and the movement slow enough that balance is never in doubt. In the side leg raise, the foot stays pointing forward - not turning up - and the leg lifts with the hip, not with a lean. Picture standing between two panes of glass; the leg moves sideways along that plane and the body does not tilt away from it. March steps: high, rhythmic, unhurried.
Sideways is the one direction walking never goes - this is where it gets covered.
Make it Harder: Lift the leg in every side leg raise without letting the torso lean even one degree the other way.
Make it Easier: Lower the side leg raise to knee height and keep the other hand on something solid.
