We trained like cavewomen.

Before cars, fast food and iWhatevers, we were a pretty buff species. Hunting, gathering and ducking predators made every day a serious workout.

That's the theory behind Wildfitness, a training style that mimics moves our ancestors might have made. Philippe Til (pictured), America's only Wildfitness-certified trainer, took us back in time:

• Toss the shoes. If you can't bear barefoot, check out Vibram's FiveFingers.
• Swing your arms. We lifted a weighted bar over and behind us, opening desk-stiffened shoulders.
• Re-learn to "crawl." Lying on our bellies with arms extended, we lifted our legs and tried to crawl in place, a little like this, correcting slouchy posture and strengthening abs.
• Jump for the trees. We did burpees, improving our explosive movements (hint: focus on height, not on legs).
• Lift rocks. Or in this case, kettlebells (iron weights). We learned how to hinge from our hips--and shocked ourselves by hoisting 54 pounds.
• Throw punches. We boxed (gloves and all), rediscovering natural movements and strength we didn't know we had.

Call us "girls gone wild."

Wildfitness, 2218 Cotner Ave., Los Angeles, (inside Junior Gym building), (310) 914-1412, MAP