"It's all I can talk about with my clients, my friends and my family. Thank you for making this course easily available. I highly recommend it to all trainers."
Tara Thompson
Live courses 2025
Buff Muff Certification: Female Core & Pelvic Floor through the lifespan
Learn how to use the principle of specificity when training your female clients for birth, postpartum recovery, and into perimenopause and menopause.
Step 1
Complete the pre-requisite coursework online
Step 2
Attend the two-day live, onsite workshop
Step 3
Finish online coursework and case study
Step 4
Receive certification
The certification
The most comprehensive female core and pelvic floor certification
This hybrid certification combines online coursework with two live workshop days so practitioners can understand the material, practice the assessments, and apply the concepts with real clients.
20 hours
Online content
14 hours
In-person instruction
CECs
Credits available
Real feedback
Trusted by practitioners working with women every day
"I completed the modules and integrated the teachings into Prenatal and Postnatal Yoga programs in my community with great success. Thank you so much Kim!"
Carley Sullivan
@prenatal.yogi
"As a Pilates teacher and a mom myself, I found the content so valuable. My only regret is that I didn't start it sooner."
Angela Eaton
"As a pelvic floor physiotherapist, it was just what I needed to help develop better treatment plans for my clients during pregnancy, postpartum and into menopause."
Alana Coady
"This course is fantastic. Such a great level of detail, in a digestible format. Great resources."
Thia Conn
Get ready to level up
A hybrid online/live education opportunity
Complete coursework before the workshop, then use the live days for hands-on practice, questions, and practical application.
1. Online Education
After you register, you'll receive access to the online component of the certification, and we ask that you complete the modules that cover anatomy & physiology, pelvic floor dysfunction, and diastasis recti prior to the live sessions in March.
2. Live Demo
This is where the magic happens. You'll get two full days with Kim and Natalie providing real-world insight on how to put the information to use with your clients in your specific work setting. You'll also be able to ask all the questions you have.
3. Practical Application
You'll have the chance to practice the assessments with a partner, as well as the muscle releases and exercises. By working through the concepts in real time with your fellow learners, you'll get a strong sense of how to integrate these components into your own practice.
4. Receiving your certification
Once you've completed the live sessions as well as all the online modules, you'll finish the coursework by submitting answers to a case study and receive your certificate. By completing this certification, you will get to use the name Buff Muff and will get six months of the licensing package.
Why this course
The essential, evidence-based techniques for anyone who works with women.
This certification helps practitioners understand the effects of pregnancy, birth, postpartum recovery, perimenopause, and menopause so they can train women with more specificity, confidence, and care.
Right now, you know...
- Diastasis recti exists, but you may not know how to assess it or what to do next.
- You know a bit about the pelvic floor, but 'do your Kegels' is not always the right answer.
- Many women struggle with back pain or abdominal function after birth and are unsure what to do.
- Women want to feel strong but avoid certain movements, and you want to know how to help.
During the course, you gain...
- A better understanding of what diastasis recti and pelvic floor dysfunction really are.
- Movement strategies that guide women toward better core health and fitness at any life stage.
- Awareness of how to evaluate exercise safety and appropriateness for each client.
- Knowledge on who needs core retraining and how to assess and progress them.
- A bigger library of pelvic-floor-friendly and diastasis-friendly exercises.
Meet your instructors
Led by Kim Vopni and Natalie Headdings
@vaginacoach
Kim Vopni
Kim Vopni is a self-professed pelvic health evangelist known as The Vagina Coach. She is a certified fitness professional, founder of Pelvienne Wellness Inc, co-founder of Bellies Inc, a published author, speaker, women's health educator, and mom to two boys.
@trainernatalieh
Natalie Headdings
Natalie is a certified exercise specialist, doula, and pelvic health nerd. With experience in clinical exercise physiology, doula work, and pelvic health education, she helps women restore natural movement, improve symptoms, and move more freely.
More value
It is like two certifications in one
Core Confidence education is paired with additional pregnancy, birth, and postpartum recovery material so practitioners have key information for multiple stages of life.
- Assess clients with confidence
- Prescribe corrective exercises and personalized recommendations
- Empower your clients to use these strategies for life
Core Confidence Specialist
A full library of exercises you can use with clients for life: exercises that promote a healthy, functional pelvic floor and strong core without treating common postpartum challenges as normal.
Pre/Postnatal Fitness Specialist
Specificity for training women in pregnancy so they remain strong and pain-free, can birth with strength and confidence, and understand essential moves for healing and core restoration.
What you'll learn
The curriculum
Ideally, complete the anatomy lessons and the core dysfunction lessons before the live days so everyone can launch into assessments, exercises, and practical application together.
1
Introduction
4 Lessons
2
Core Anatomy Function
4 Lessons
3
The Diaphragm
2 Lessons
4
The Multifidus
2 Lessons
5
The Transversus Abdominis
3 Lessons
6
The Pelvic Floor
6 Lessons
7
Other Core Muscles
3 Lessons
8
Common Causes of Core Dysfunction
1 Lesson
9
Effects of Pregnancy
2 Lessons
10
Common Types of Core Dysfunction
15 Lessons
Live
Certification Workshop
2 Days
11
Assessments
16 Lessons
12
Releasing Non Optimal Strategies
9 Lessons
13
Training Your Clients for Birth
12 Lessons
14
Optimizing Postpartum Recovery
3 Lessons
15
Return to Fitness
27 Lessons
16
FAQ and Summary
1 Lesson
17
Business
1 Lesson
Exam
Exam and Case Study
Knowledge for a lifetime
A certification backed by trusted providers
Whether you're a fitness professional, chiropractor, physical therapist, massage therapist, doula, midwife, OB, allied health professional, or curious about this information for yourself, this course will serve you for years. You can receive CEUs from trusted organizations across North America.
I'm ready to get started
Female Core & Pelvic Floor Certification
MVMNT Studio in San Diego, CA on March 8-9th, 2025. Limited seats available.
20 hours
Online content
14 hours
In-person instruction
CECs
Credits available
FAQs
Questions before you register?
Still have questions? Email hello@trainernatalie.com.
It's a great fit for anyone who works with women: fitness professionals, physiotherapists, yoga instructors, pilates instructors, chiropractors, massage therapists, doulas, midwives, and allied health professionals. Unless you work strictly with men, this course is for you. The information is female centric, but everyone has pelvic floors and inner core units that benefit from intentional training.
"Great information from genuine experts in their field! Truly useful, evidence-based and progressive guidance for women exercising and staying active during pregnancy, with a focus always on core and pelvic floor health and function."
Rebecca Fidler, DC Doctor & CrossFit Trainer
"I completed this course today and it was just what I needed to help develop better treatment plans for my clients. This course has really helped me to put programs together more effectively."
Alana Coady, Pelvic floor physiotherapist