The Muscles You Can't See Are Doing All the Work.
Let’s not forget what is behind us!
When you look in the mirror what do you see? Your arms. Your abs. Maybe your shoulders. The muscles that face forward, that catch the light, that confirm you've been showing up.
When you carry a bag, when you climb a flight of stairs, when you reach down to pick something up from the floor — which muscles are actually doing the work?
The answer is the ones you cannot see. The glutes. The hamstrings. The erector spinae. The multifidus. The lats. The deep abdominals. The entire backside of your body. This is your posterior chain — and if you've been doing almost any fitness program for years, including our beloved Strength in Motion™, the research is clear: your anterior chain (the front of the body) is almost certainly stronger than your posterior chain. That imbalance could be costing you more than you know.
"A strong posterior chain is not a fitness goal. It is the foundation beneath every fitness goal you have ever had."
Over the next two weeks, we're going to fix that. Together. I've designed six sessions — every Monday, Wednesday, and Friday — that go deeper into the posterior chain and core than our regular Strength in Motion™ classes do. These are advanced sessions, built specifically for our community, because you have been training with me long enough to handle more.
I'm recording these sessions for you. They'll be available on demand so you can work through them on your own schedule, replay them as many times as you like, and revisit them whenever you want a focused posterior-chain reset. Think of this as a two-week specialist course layered inside your regular programme — not a break from what we do, but a deeper understanding of why we do it.
Here's what I want you to know before we begin. The posterior chain is the reason you stand tall. It's the reason your back doesn't hurt at the end of the day. It's the reason you can carry things, climb things, balance through unpredictable terrain, and age without the fear of falling. For people in their forties, fifties, and sixties, building a strong posterior chain is one of the most powerful investments you can make in the decades ahead.
And the core — not the six-pack muscles everyone focuses on, but the deep 360-degree corset of muscle that wraps your entire trunk — is what connects it all. Without a strong deep core, your glutes can't fully fire, your hamstrings can't fully load, and your back has to compensate for everything. When you build them together, as a system, you unlock a level of functional strength that no amount of bicep curls can give you.
That's what these two weeks are about. Let's not forget what is behind us!
— Lisa
LISA KIELY FITNESS AND TRAVEL · LISAKIELY.COM
