25 Day Core Challenge Calendar

A structured 25-day program designed to systematically strengthen your core with daily exercises, progressive difficulty, and expert guidance from a Doctor of Physical Therapy.

Daily Guidance: A complete roadmap with specific exercises for each day, so you never have to wonder what to do next.
Progressive Difficulty: Gradually build strength and endurance as exercises become more challenging at just the right pace.
Flexibility: Customize around your schedule while still making consistent progress on your core strengthening journey.
Expert Instructions: Step-by-step guidance from a Doctor of Physical Therapy on proper form for every exercise.
Proven Success: See results that others have already achieved with this systematic approach to core training.

‍

Download Your FREE PDF!

Purchase The Calendar!

Here's how this PDF has helped my clients:

No Expensive Gym Equipment: All exercises can be done at home with minimal or no equipment.
Only Five Minutes a Day: Perfect for busy individuals who want results without spending hours in the gym.
Eliminate Guesswork: Follow the plan exactly as outlined and watch your core strength improve day by day.
Build a Structured Plan: Guarantees results so you'll never have to deal with unpleasant gym trainer encounters or struggle with inconsistent routines.
Progressive Confidence: As you complete each exercise with proper form, you'll gain momentum toward real improvements.

I had a great experience with Revision Health Services, Dr Michael Derry, Physical Therapist. I have used Dr Derry’s services for neck, back and recently for total knee replacement therapy. He is a caring outstanding professional that cares about the health of his patients and wants to attain the best program them. He also helped me with strength training program to help me live a better life in the future. The best part is that he comes to your house so you don’t have to leave for therapy. Thank you Dr Michael for your skill, patience and attention you gave me. ⭐⭐⭐⭐⭐ - Teresa A.

Download Your FREE PDF!

Purchase The Calendar!

Patient Testimonials

Read what patients have to say about my services!

Michael has been a vital partner to help me overcome injuries and identify areas of weakness. He constantly assesses and adapts interventions to encourage recovery. The stretch, glide, manipulate, and dry needling techniques have helped keep me active.

-Chris A.

My time with Dr Derry was worth every penny. After suffering with pain from a car accident almost 4 years ago Physical Therapy was the key to increasing my strength and decreasing my pain. Dr Derry worked with my crazy working mom schedule and traveled to both my home and place of business. I highly recommend Dr Derry.

-Jill M.

Dr. Derry was extremely helpful with developing my in-home program. My back is much better than it was a couple of weeks ago. He gets to know what your goals are, then works on a individual plan with you. Very good experience!

-Christine T.

New Patient Application Read More Reviews

Hi, I'm Dr. Michael Derry, DPT, OCS

A trusted Doctor of Physical Therapy with nearly ten years of experience. I have earned my Doctorate in Physical Therapy from Bradley University and I am a board-certified orthopedic clinical specialist.
‍
Specializing in core strengthening and orthopedic care, I am helping people to improve their strength and resiliency. Based in Jacksonville, Florida, I offer personalized care as a concierge physical therapist via Revision Health Services.
‍
I have also been an adjunct professor and wrote a book on core strengthening available on Amazon!
‍
My approach combines evidence-based practices with real-world experience to provide safe and effective exercise routines.
‍
Let me guide you through a comprehensive core strengthening training that will transform your strength and daily life.

Download Your PDF!

Purchase The Calendar!

Dr. Michael Derry

If You're Serious About Transforming Your Core, The '25 Day Core Challenge Calendar Is For You!

Duplicate the success of others with our easy-to-follow challenge with detailed instructions designed by a Doctor of Physical Therapy.

What's Holding You Back From Core Strength?

Most people fail at building core strength because they lack a consistent plan to follow. You might start strong but quickly lose momentum without proper guidance.

Have you tried random core exercises before without seeing real results?

Many core workouts are either too easy (providing no challenge) or too difficult (leading to frustration and quitting).

The key to success is progressive difficulty—starting where you are and systematically advancing.

This 25 Day Core Challenge solves these problems by giving you exactly what to do each day, gradually increasing difficulty, and showing you proper form for maximum benefit.

When you follow this plan, you'll be able to achieve your core strength goals, which will allow you to enjoy a stronger, more confident life.

Things People Most Often Ask About

What if I'm a beginner? The challenge includes progression that begins at a comfortable level so you can start where you're comfortable and improve over time.

How long do the daily workouts last? Each day's workout is designed to be time-efficient, typically taking around 20-30 minutes.

Do I need any special equipment? All exercises can be done at home with minimal or no equipment.

Can I fit this into my busy schedule? Yes! The flexibility of this calendar means you're never locked into specific times. The Core Challenge is easy to fit into any schedule.

Download Your FREE PDF!

Purchase The Calendar!

Get Started For $7

In just five minutes per day, I'm going to show you a simple yet powerful method that will transform your core strength and free you from inconsistent workout routines. Say goodbye to unpleasant gym trainer encounters and struggle-filled workouts.

What You Get:

Complete 25 Day Core Challenge Calendar
Detailed exercise instructions with photos
Daily progression system
Tips for proper form and technique
Email support from Dr. Derry

Don't let another day pass without committing to your core strength goals. Start the challenge today and experience the transformation for yourself.

Download Your FREE PDF!

Purchase The Calendar!