Some Pilates organizations are built around a curriculum. PAI was built around a conviction.

Katherine Corp and Kimberly Corp — identical twins, former Radio City Rockettes, Duke and Columbia University graduates, and two of the most widely traveled Pilates educators in the world — founded Pilates Academy International in 2005 after a decade of performing, teaching, and training across the United States and Japan.

A Background That Shaped Everything

Before they were Pilates educators, Katherine and Kimberly were performers — members of the iconic Radio City Rockette Company, one of the most demanding professional dance environments in the world. That background gave them an intimate understanding of what a body is capable of, what it requires to sustain peak performance, and — critically — what happens when an instructor prioritizes aesthetics over wellbeing.

Their years living and working in Japan deepened that perspective further. Fluent in Japanese — they speak, read, and write the language — Katherine and Kimberly developed a deep appreciation for the precision, discipline, and cultural nuance required to teach movement across cultures. That experience is woven into everything PAI does, including the fact that PAI now operates more than 10 satellite centers in Japan alone.

Why They Founded PAI

PAI was not founded to replicate what already existed. It was founded in direct response to what Katherine and Kimberly found was missing: a Pilates certification program that prepared instructors to teach all clients — not just the already-fit, the already-flexible, or the already-motivated.

The PAI method is built on the belief that the classical Pilates repertoire, taught intelligently and with appropriate modification, is accessible to every body. No client should ever leave a session feeling they are not enough. That conviction is not marketing language. It is the founding principle of this organization.

Twenty Years Later

Today, PAI operates more than 40 satellite centers across six continents, holds ITTAP accreditation from the PMA, and is an approved continuing education provider for ACE, NASM, AFAA, and NPCP. Katherine serves as Director of Operations; Kimberly as Director of Education. Between them, they have trained thousands of instructors who are now teaching in studios, gyms, hospitals, and private practices worldwide.

The conviction that started it all has not changed.

If you’re building a Pilates teaching career, here is one of the most valuable things you can understand early: the aging population is the fastest-growing and most underserved client group in the fitness industry — and Pilates is uniquely suited to serve them.

The Opportunity

Adults over 60 represent a significant and growing share of the population across every region PAI operates in. Many are actively seeking movement modalities that are low-impact, intelligent, and genuinely effective. Many have been told by doctors, physical therapists, or well-meaning friends that Pilates would be good for them.

Many of them have never found an instructor who knew how to work with them.

What Older Adults Need — and What Pilates Offers

The priorities for older adult clients differ from those of a younger athlete. Balance, bone density, joint integrity, functional movement patterns, and the psychological benefit of feeling capable in one’s own body — these are the outcomes that matter most, and they are outcomes that a well-trained Pilates instructor can meaningfully deliver.

The classical repertoire, properly taught and appropriately modified, is extraordinarily well-suited to this population. Footwork on the reformer builds lower extremity strength and coordination. The spine articulation series directly addresses the spinal mobility that diminishes with age. The reformer’s spring resistance allows for precise load management in ways that free weights cannot match.

The Training You Need

Working confidently with older adult clients requires specific knowledge: how aging affects the musculoskeletal system, how to modify for osteoporosis and arthritis, how to recognize red flags, and how to build sessions that are genuinely progressive for a client whose trajectory may look different from a younger athlete’s.

PAI’s continuing education workshops — including our OMG workshop (Osteoporosis, Menopause & Glutes) — are designed to give instructors exactly that knowledge.

The older adult who leaves your class feeling stronger and more at home in their body than when they arrived? They will be your most loyal client for years.

The word “inclusive” gets used a lot in the fitness industry right now. It appears on websites, in marketing materials, in mission statements. Sometimes it is genuine. Sometimes it is not much more than vocabulary.

At PAI, we have a more specific definition: an inclusive class is one where every client, regardless of their age, fitness level, body type, or physical history, can participate fully — not as a modified afterthought, but as an equal participant in the work.

That’s a higher bar than it sounds.

Modifications Are Not the Problem — They’re the Answer

There is a persistent misconception in the Pilates world that modifications are concessions — something you offer when a client can’t do the “real” exercise. We reject that framing entirely.

At PAI, modifications are taught as what they actually are: intelligent progressions, carefully designed to build the strength, mobility, and body awareness that the full classical exercise requires. A client working a stepping-stone modification is not doing less. They are doing exactly what their body needs to be doing right now — and they are moving toward the full expression of the exercise with every session.

The Instructor’s Role

Creating a truly inclusive class is an instructor skill, not an accident. It requires understanding each client’s current capacity, knowing which modifications serve which goals, and cueing in a way that makes every client feel that what they are doing is exactly right for them — because it is.

PAI graduates are trained to do all three from day one. Modifications are not an advanced topic in our curriculum. They are the curriculum.

What Clients Remember

Clients don’t remember every exercise you taught them. They remember how they felt when they left. They remember whether they felt capable, respected, and met exactly where they were.

That is what keeps them coming back. And that is what “inclusive” actually means in practice.

You’ve earned your Pilates certification. Congratulations — genuinely. Now what?

In the fitness and wellness industry, a certification is not a finish line. It’s a starting line. The instructors who build long, fulfilling, respected careers are the ones who continue learning, continue growing, and continue earning continuing education credits (CECs) that keep their credentials current and their knowledge sharp.

Why CECs Matter Beyond the Paperwork

Yes, many certifications require CECs for renewal. But the instructors who treat continuing education as a checkbox are missing the point — and their clients can usually tell.

The best continuing education workshops don’t just satisfy a requirement. They expand your client base, deepen your clinical understanding, and give you entirely new tools to serve populations you couldn’t confidently work with before.

What to Look for in a CE Workshop

Not all workshops are created equal. Before enrolling, ask:

• Is this workshop approved by recognized CE providers (ACE, NASM, AFAA, NPCP)?
• Is the content evidence-based?
• Will the skills translate directly to my teaching environment?

PAI’s continuing education workshops are designed to meet all three criteria. Each workshop is built around a specific population or modality — from breast cancer survivors to osteoporosis and menopause management to aerial-based Silk Suspension work — and each one gives you immediately applicable skills.

How to Build a CE Strategy

Rather than accumulating CE credits at random, consider building a CE strategy around the populations you want to serve. If you work primarily with older adults, prioritize workshops on osteoporosis, joint health, and balance. If you work in a clinical or post-rehabilitation setting, the PAI pre/post rehabilitation curriculum is a natural next step.

Your continuing education should tell a coherent story about the kind of instructor you are becoming.

One of the most common anxieties new Pilates instructors face is this: How do I know what to teach this client?

It’s a reasonable question. You’ve learned dozens of exercises. Your client is standing in front of you. Where do you start?

PAI’s answer is the five-tiered curriculum system — a framework that gives instructors a clear, logical, immediately usable structure for programming sessions from day one of their teaching career.

What the Five Tiers Do

The five tiers create a progressive pathway that maps client development from foundational movement patterns all the way through advanced work. Each tier has a clear purpose, a defined set of exercises and modifications, and specific criteria for when a client is ready to progress.

This means that as an instructor, you always know where your client is, what they’re ready for, and what the next step looks like. The guesswork is gone — replaced by clinical confidence.

Why This Matters for Your Clients

From the client’s perspective, the five-tiered system creates something invaluable: a sense of continuous progress. Clients move through the tiers naturally, never feeling stuck, never feeling pushed beyond their capacity. They experience regular wins. They feel capable. They keep coming back.

Why This Matters for You

Instructors who can program intelligently — rather than just deliver a script — are the instructors whose clients stay. Retention is the heartbeat of a sustainable teaching career, and retention is built on results. The PAI five-tiered system gives you the tools to produce results with every client, every session.

You’ll leave PAI training not just with a certification — but with a system you can use on your very first day.

Ask ten Pilates instructors what makes a great teacher, and you’ll hear ten different answers. Flexibility. Cueing. Anatomical knowledge. Energy. Patience.

All of those things matter. But in our experience at Pilates Academy International — over 20 years of training instructors across six continents — the quality that most reliably separates a good instructor from a great one is this:

The ability to think on their feet.

Why Memorization Isn’t Enough

Many Pilates programs train students to follow a sequence. Learn the order. Deliver the class. There’s value in that — repetition builds familiarity, and familiarity builds confidence.

But what happens when a client comes in with a lower back flare-up? When a new student becomes emotional during a difficult exercise? When someone hasn’t slept in three days, has just returned from surgery, or is navigating a major health transition?

No sequence handles those moments. Only a thinking instructor does.

The PAI Approach: The WHY Behind Every Exercise

At PAI, we call it the Y behind the X. We do not require students to memorize a fixed exercise order — not because we disrespect the classical tradition (we deeply respect it), but because we believe memorization without understanding does not produce great instructors.

Instead, we train students to understand why every exercise exists. What it accomplishes. Which populations it serves. When to use it, when to modify it, and when to put it aside entirely.

An instructor trained this way can walk into any session, with any client, and build exactly the right program for that person on that day.

The Other Thing That Separates Great Instructors

Great instructors make every client feel capable. Not just the naturally coordinated clients — every client. The beginner who can’t roll up. The post-surgical client who can barely lie flat. The person who is certain Pilates “isn’t for people like me.”

PAI graduates are trained from day one to meet clients where they are — and to make the full classical repertoire accessible to all of them.

No client should ever leave a session feeling they are not enough. That belief is the foundation of everything we teach.

It’s one of the most common questions we receive from aspiring Pilates instructors: Should I start with Mat or Reformer?

The honest answer is: it depends on your goals, your timeline, and where you ultimately want to teach. Here’s a clear breakdown to help you decide.

The Case for Starting with Mat

At PAI, Anatomy & Biomechanics is the true foundation of everything — but after that, many students choose Mat I as their entry point, and for good reason. Mat Pilates requires no equipment, which means you can teach virtually anywhere: a studio, a community center, a client’s living room, a park. Mat certification is also typically the faster path to your first teaching job, and the skills you build — cueing, body awareness, client assessment — translate directly to every other apparatus you learn.

If your goal is to start teaching as quickly as possible, Mat is often the most practical first step.

The Case for Starting with Reformer

Reformer Pilates is in extraordinarily high demand. Most Pilates studios are built around their reformers, and clients seeking private or group reformer sessions represent a significant and growing market. If you already have a position at a reformer-focused studio, or if you know that’s the environment you want to work in, beginning with Reformer I may make more strategic sense for your specific career path.

What PAI Recommends

Our five-tiered curriculum is designed to be flexible. However, we recommend that students complete Anatomy & Biomechanics early in their training — ideally before or alongside their first apparatus certification. Understanding the “why” behind every exercise is central to the PAI method, and Anatomy & Biomechanics gives you that foundation.

The most complete and versatile PAI graduates are those who go on to certify across multiple apparatus. The beautiful thing about the PAI curriculum is that each certification builds on the last — so the learning accelerates over time rather than feeling repetitive.

Not sure which path is right for you? Reach out to us directly. We love talking through these decisions with prospective students.

If you’ve been researching Pilates certification programs, you’ve probably come across the term “ITTAP accredited” — and you may have wondered what it actually means, and why some programs have it and others don’t.

Here’s the short answer: ITTAP accreditation is the gold standard in Pilates teacher training. The longer answer is worth understanding before you invest your time and money in any certification program.

What Is ITTAP?

ITTAP stands for the International Teacher Training Accreditation Panel, the accrediting body of the Pilates Method Alliance (PMA). Unlike certifications that programs award themselves, ITTAP accreditation is granted by an independent external panel that evaluates curriculum design, faculty qualifications, teaching methodology, student outcomes, and organizational standards. It is not easy to obtain — and that is precisely the point.

Why Does It Matter to You?

When a program holds ITTAP accreditation, it means the curriculum has been externally verified to meet rigorous international standards. As a graduate, that matters in two very specific ways.

First, your credential is recognized. Studios, gyms, and healthcare settings worldwide understand what an ITTAP-accredited certification means. You will not be explaining yourself to every potential employer.

Second, ITTAP-accredited programs tend to produce better instructors — because the standards required for accreditation ensure that curriculum is comprehensive, methodology is sound, and graduates are genuinely prepared to teach.

Not All Programs Are Created Equal

Many Pilates certification programs are self-accredited, meaning the organization that created the curriculum also declares it meets a standard. ITTAP accreditation removes that conflict of interest entirely.

At Pilates Academy International, we have held ITTAP accreditation since 2013. We pursued it not to put a badge on our website, but because our students deserve a credential the industry respects — everywhere they go.

If accreditation matters to you — and it should — make it one of the first questions you ask of any program you’re considering.