Complete Fitness Trainer Certification: Beginner To Advanced (Udemy.com)
Become A Fitness Coach: Create Muscle Growth & Fat Loss Workouts, Build A Fitness Training Business & Be A Health Expert
Created by: Felix Harder
Last updated December 2025
Our take
Based on the ratings of 13,509 students, a sample of their written reviews and the syllabus, as the course stood in December 2025. No course pays to be reviewed.
This is a compact introduction to fitness coaching, not a full personal trainer certification program. Felix Harder walks through anatomy, client assessment, resistance training, cardio and flexibility in 62 lectures totalling about 170 minutes. The syllabus shows the biggest chunks go to resistance training and cardio, while anatomy and flexibility each get a quick 14 minutes. It suits someone who trains regularly, wants to understand why programs are built the way they are, and is thinking about coaching friends or first clients. Roughly 60,000 students have enrolled, and it carries a Bestseller badge.
Reviewers keep using the same words: short, clear, to the point. One student with a health background calls it a useful supplement to what she already knew, and others say it clears up confusion without being intimidating. The last update was December 2025, so the material is recent. The complaints are about depth. One five-star reviewer still wanted more detailed weight training examples, and the exercise form section covers nine lifts in about 13 minutes. The harshest review calls the content freely available on social media and not worth the money. With 4.6 stars from over 13,000 reviews that's a minority view, but it's a fair warning if you've already read a lot about training.
Value depends on expectations. The CPD certificate and 10 credits are the main draw over free YouTube content, but CPD is the only accreditation the listing mentions, so check whether it counts where you plan to work. The Diet And Nutrition Coach Certification sits alongside it on our list and makes a natural companion. As a first step before a serious certification, or a quick framework for building sensible workouts, it's an easy recommendation. As a deep education in exercise science, it isn't.
Pros
- Short lectures, about 170 minutes total, that reviewers describe as clear and easy to follow
- Covers the whole coaching loop: anatomy, client assessment, program design, cardio and stretching
- Updated December 2025 and grants a CPD certificate with 10 credits on completion
- Nine exercise form videos for the main lifts, including squat, deadlift and bench press
Cons
- Depth is thin; the anatomy and flexibility sections run about 14 minutes each
- Only CPD accreditation is mentioned, and one reviewer says the material is freely available elsewhere
- Form videos are brief, and one student asked for more detailed weight training examples
Easy and simple instructions. Not intimidating at all. This clears up so much confusion.
Marked all levels, and that fits: no prerequisites beyond an interest in fitness, but experienced trainers will find it basic.
What you will learn
- Earn your CPD Certificate
- Help others lose fat & build muscle
- Assess clients and determine fitness & strength levels
- Create individual workouts and exercise programs
- Understand the fundamentals of human anatomy
- Know correct movement form for the most important exercises
- Build and grow a coaching business (online or in person)
Course content
9 sections · 62 lectures · 2.8 hours of video 5 quizzes, 5 articles
- 1Introduction 3 free previews7 lectures · 12 min
- 2Anatomy 1 free preview8 lectures · 14 min
- 3Client Assessment 1 free preview5 lectures · 13 min
- 4Resistance Training12 lectures · 45 min
- 5Exercise Instruction Videos 2 free previews13 lectures · 13 min
- 6Cardio & Endurance Training 1 free preview10 lectures · 58 min
- 7Flexibility4 lectures · 14 min
- 8Final Quiz5 quizzes
- 9Conclusion3 lectures · 1 min
Who it is for
The instructor says it suits
- Anyone interested in coaching others
- Anyone wanting to learn how to design fitness workouts
- Anyone wanting to grow their fitness business (online or in person)
What you need before you start
- Willingness to help and motivate others to exercise
- Passion for fitness
How it compares
Against the other 662 rated Udemy courses in Health & Fitness on CourseDuck:
- Rating4.6 out of 5higher than 49% of them
- Reviews13,509#6 of 663 by number of reviews
- Length2.8 hourslonger than 50% of them
- Last updatedDecember 2025more recently than 64% of them
Course Description
>>>THIS COURSE IS CPD ACCREDITED. COMPLETE IT AND YOU AUTOMATICALLY EARN YOUR CERTIFICATION & 10 CREDITS<<<
Learn How To Become A Fitness Trainer, Work With Clients And Grow Your Fitness Coaching Business
Hi, I'm Felix Harder fitness coach and certified nutritionist. My "Complete Fitness Trainer Certification" is designed for anyone who wants to coach others about fitness training - be it cardio, strength training or flexibility.
In this course I will take you through the process of becoming a fitness expert step by step. You will learn everything you need to know about the fundamentals of good training programs and how to design your very own for you or your clients.
Researching and gathering all the knowledge you need to coach others takes a lot of time, so I created this course as a complete program to teach you everything there is to know about the three pillars of a good fitness workout:
- Strength training (e.g. gym training or bodyweight training)
- Cardiovascular training (e.g. jogging, circuit training or HIIT)
- Flexibility (e.g. stretching and maintaining healthy joints)
Here Is What's Inside The Program:
Human Anatomy
The Nervous System Explained
The Skeletal System Explained
The Muscular System Explained
The Cardiovascular System Explained
The Different Types Of Muscle Fibers
How Muscles Contract & What Makes Them Grow
Muscle Agonists & Antagonists
Client Assessment (Determine Strength & Fitness Levels)
The Client Interview
Fitness Assessment
The Harvard Step Test
Estimating 1 Rep Max Strength
Resistance Training
How To Build A Beginner Gym Workout
Bodyweight vs Strength Training
My Muscle Building Formula
My Fat Loss Formula
The 4 Most Important Exercises For Muscle Growth
How To Warm Up Before Lifting Weight
Exercise Videos (Learn Proper Form)
Bench Press
Deadlift
Squats
Lat Pull-Downs
Barbell Rows
Push-Ups
Pull-Ups
Chin-Ups
Lunges
Cardio & Endurance Training
How To Build A Cardio Workout
The Different Types Of Cardio
How To Measure Your Heart Rate During A Workout
Cardio vs Weight training - Which Is Better For Weight Loss?
The Right Cardio For Weight Loss
HIIT Explained (incl. Sample Workout)
Flexibility
Most Common Stretching Mistakes
Static vs Dynamic Stretching
Sample Stretching Routine
This course will give you all the tools you need to help others achieve their fitness goals, be it to build muscle, lose fat or simply life a more active life. If you want to build up your online fitness coaching business, be it online or in person it’s important you equip yourself with the knowledge of how to correctly work with your students and understanding their painpoints.
The fitness coach course is designed to develop both your personal and professional life. That means it’s not just for professionals but also for beginners who want to improve their own fitness level. You don’t have to have to be a personal fitness trainer or have any students yet and all you need is an interest in fitness to get started.
The program is made up of multiple downloadable worksheets, eBooks and other printable resources. If you sign up you get access to all of them so you can study anywhere and at anytime.
So If You Want To Coach Others And Make Fitness Your Career, This Is The Right Course For You
Remember, there is a 30-day 100% money-back guarantee. There is no reason to hesitate. Enroll now, see if you enjoy the course, and start learning today!
Instructor Details
- 4.6 Rating
13,509 Reviews
Felix Harder
Hi,
Thank you for checking out my profile!
I have been active on Udemy for almost 10 years now and am lucky to be able to help over 250k students from around the world. My courses cover a wide range of topics, from health & fitness, coaching, personal development & more.
Hope to see you in one of them
Have a great day :-)
More courses by Felix Harder
Diet And Nutrition Coach Certification: Beginner To Advanced (2025)
4.7 (10,282 Reviews)
Provider: Udemy
Time: 4.8h
$149.99
Nutrition Masterclass: Build Your Perfect Diet & Meal Plan (2025)
4.7 (8,830 Reviews)
Provider: Udemy
Time: 4.1h
$149.99
Life Coach Certification Masterclass: 3 Certifications In 1 (2025)
4.7 (3,392 Reviews)
Provider: Udemy
Time: 10.3h
$149.99
Weight Loss And Nutrition: Lose Fat & Get Your Dream Body (2025)
4.3 (2,786 Reviews)
Provider: Udemy
Time: 2.5h
$94.99
Fitness Trainer Certification: Gym Workouts & Bodybuilding (2025)
4.5 (2,715 Reviews)
Provider: Udemy
Time: 3.7h
$124.99
Health And Wellness Coaching Certification (CPD Accredited) (2025)
4.6 (2,516 Reviews)
Provider: Udemy
Time: 4.6h
$16.99
More Health & Fitness courses
Aromatherapy: Using Essential Oils for Natural Living | 5 CE (2026)
4.9 (6,254 Reviews)
Provider: Udemy
Time: 6.2h
$17.99
Gua Sha Massage Certificate Course | 3 CEU (2026)
4.9 (2,853 Reviews)
Provider: Udemy
Time: 3.1h
$14.99
Herbalism :: Essential First Aid Remedies Certificate (2025)
4.9 (1,460 Reviews)
Provider: Udemy
Time: 36 mins
$16.99
300 Hours Advanced Yoga Teacher Training: Part 3 (Bodsphere) (2026)
4.9 (984 Reviews)
Provider: Udemy
Time: 21h
$12.99
Facial Cupping Massage Certificate Course (1 CE) (2026)
4.9 (703 Reviews)
Provider: Udemy
Time: 1.8h
$59.99
Reviews
By Armand Boshoff on 7/19/2026
The course was well-designed and efficient. This made it helpful when seeking to gain a high level understanding of fitness and nutrition.
By Prestige Fitness and Wellness on 7/12/2026
I trust the information that is being provided and find it easy to follow, take notes, and design my next workout routine. I’ve learned so much about how to optimize the body for maximum results. I’m excited to create my next plan for weight training.
By Martin Taruvinga on 5/21/2026
A great course that provides practical guidelines which you can implement right away. The concepts are well explained and it inspires you to learn more.
By Yuvaraj Seenu on 5/10/2026
The way you explain and demos are excellent one thing that you look different from others are you clearly choose topics and carried the content well. When talk about the resource section something lack in the muscle types it's quite difficult to understand. But every other things are excellent, Thank you.
By Rain Frances on 5/8/2026
This course was jam packed with information. I was especially interested in learning about the bodyweight strength training sections. Learning how the muscular skeletal system works as you stretch and strength train was super important in my education, thank you so much. The instructor was very clear, and easy to understand.
By Nissie Caroline on 4/28/2026
The explanation throughout the course was clear and well-structured. As a dietitian, I found it easy to understand and also gained deeper insights into the topics covered. The content is presented in a way that supports both foundational learning and practical application. Overall, the course is very useful and valuable for enhancing knowledge and skills in the field.
By Cindy Saville on 3/31/2026
All was great, however my progress report is showing 66 and not 67, yet I can't see what I may be missing, it's a little confusing. Other than that all was great.
By Karen Riley on 3/11/2026
Became certified as a personal trainer back in 2009 and trained friends, and volunteered in the weight room at the YWCA for a year. Have always kept up my own fitness and health and thought it would be a good idea to take a refresher course. So far enjoying the course.
By Sandile Sithole on 3/10/2026
What an amazing experience, course and great thanks to Felix. So many mistakes one was doing in the past but not after this course. I am a football (soccer) coach and now i can conduct better fitness training session for them.
By Erin Christine Rausch on 2/25/2026
This course is essential for rounding out the health coaching services I am developing. I am very grateful for the clear succinct BS-free instruction Felix Harder provides.
Quality Score
No CourseDuck member has rated this course yet. Taken it? Give each part a thumbs up or down.
Overall Score : 92 / 100












