Business Details
9 Years
experience
Your Hybrid Fitness Training Partner in Colorado
Founded in 2017, Kathletics is a hybrid fitness training company dedicated to helping individuals build strength and endurance for both gym and outdoor activities. Our founder, Katharine Moustakes, transitioned from event coordination to fitness training after discovering her passion for hybrid training during her personal fitness journey. We specialize in programs that combine strength, cardio, and mobility to create balanced, sustainable fitness solutions for clients of all ages and backgrounds. Our team of certified professionals brings expertise in NASM personal training, running coaching, prenatal/postpartum fitness, and nutrition. Kathletics serves clients globally through online platforms while maintaining a physical presence in Colorado, where we immerse ourselves in the outdoor lifestyle.Our approach eliminates the need to choose between strength and cardio training, offering customized programs that adapt to individual lifestyles and goals. With hundreds of clients successfully guided to improved strength, mobility, and confidence, we remain committed to making fitness accessible and enjoyable. Our unique methodology integrates evidence-based practices with real-world application, ensuring clients can hike further, run stronger, and live more actively without injury. We prioritize client education, movement pattern correction, and goal-oriented programming to deliver long-term health benefits beyond temporary fitness gains.
Services
Hybrid Training Programs
1:1 Online Coaching
Kathletics Trail
Sustainably Fit
Virtual Training
Details
- Year established: 2017
Highlights and features
- We offer personalized hybrid training programs tailored to outdoor activities
- Our team includes NASM-certified trainers with specialized credentials
- We focus on sustainable fitness that prevents injuries and builds long-term strength
- We provide video-guided workouts with movement pattern correction
- We combine strength, cardio, and mobility training in one comprehensive program
Associations and certifications
- NASM
- UESCA
- AFPA
- Precision Nutrition
What people say
Injury-free and more mobile
Expert lifter and outdoor adventurer
Programmed tailored to my needs
Achieve my fitness goals
Balanced lifestyle approach
Services
Kathletics Trail
Our hybrid training program builds strength and endurance for hikers and trail runners. Perfect for weekend warriors seeking improved trail stability and pack-carrying capacity. Combines gym-based strength work with trail-specific conditioning to enhance outdoor performance while reducing injury risk.
Sustainably Fit
Strength and cardiovascular program designed for lifelong fitness. Helps recreational athletes maintain mobility while building muscle through efficient, structured workouts. Focuses on functional movement patterns that translate to sports like running, cycling, and skiing.
1:1 Online Coaching
Customized hybrid training plans addressing strength, endurance, and power goals. Includes personalized program adjustments, nutrition guidance, and movement correction. Ideal for clients seeking tailored approaches to performance improvement or race preparation.
People
Katharine Moustakes
CEO + Head Coach
NASM-certified personal trainer with specialties in running coaching and prenatal/postpartum fitness. Transitioned from event coordination to fitness training in 2017. Helps clients build strength for outdoor activities while focusing on injury prevention and mobility.
Questions
What hybrid training programs do you offer?
We offer Kathletics Trail for hikers/runners, Sustainably Fit for general strength, and 1:1 Online Coaching for personalized plans. All combine strength, cardio, and mobility training.
How does hybrid training benefit outdoor enthusiasts?
Our hybrid approach builds trail-specific strength while improving cardiovascular endurance. This combination helps hikers carry heavier packs, runners maintain form on descents, and outdoor lovers enjoy activities with reduced injury risk.
Can I get personalized coaching online?
Yes, our 1:1 Online Coaching provides customized programs with video guidance, movement corrections, and regular check-ins to address your specific goals and progress.
What certifications do your trainers hold?
Our team includes NASM Certified Personal Trainers, UESCA Running Coaches, AFPA Prenatal/Postpartum specialists, and Precision Nutrition L1 Coaches with wilderness first aid training.
How do virtual training programs work?
Our virtual programs deliver structured workouts through our app with video demonstrations. Coaches provide regular feedback and program adjustments based on your progress and goals.
Videos
Reviews (7)
Matt Finnegan
Mar 20, 2021
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When I started working with Katharine two years ago, I was 47 years old and in decent physical shape. I weigh 200 pounds, was a good athlete in high school, and could still bench press over 300 pounds. So as an experienced weightlifter, why would need to utilize KATHLETICS? Well, after a basketball injury and subsequent knee surgery in my mid-40s, I was merely getting by with leg weights. I was focused mostly on upper body, and would do squats just frequently enough that I could still put up 225 pounds every month or two (hated leg day). My initial goal was to increase leg strength, but I
Winn Oo
Jan 29, 2021
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I have been working with Katherine in person (before the pandemic) and now via zoom for my strength training. She is prompt, professional, and fun to workout with. She is very observant to my forms, attentive to my shoulder and knee injuries from the past, and creative in coming up with the effective workout routines. Katherine is an excellent trainer and coach. I highly recommend her.
Whitney Boyd
Jan 20, 2021
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I knew of Katharine through mutual friends, and I have followed her for quite some time now. About 6 months ago I reached out to her because I felt like I was at a stand still with my health game and needed some help. Over these last 6 months, Katharine has helped me push myself to achieve my goals and I am extremely happy with my progress! She has helped me reshape the way I think about food and body image. Thank you, Katharine for helping me feel like my confident self again!
Ronda Krier
Dec 07, 2020
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I love Katharine's approach to wellness and fitness. Her program is sustainable, even for busy people don't think they have time for fitness. Katharine is supportive and goal-oriented. She is able to quickly adapt to changing circumstances - we went from in-person training to virtual training during the pandemic. She has also coached me through a few injuries so that I could continue to make progress while allowing myself time to heal. I have been working out with Katharine for almost 2 years and have no plans to stop!
Alexa Fitzpatrick
Nov 30, 2020
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I've absolutely enjoyed my almost year experience with KATHLETICS LLC I was really nervous about getting a personal trainer but feeling like I needed one after being told by my doctor that I was obese for my age. Katherine not only made a personalized workout routine and schedule for me but she's made a accommodations for my health and for my injury to make workouts fun but good for my body! After every session I feel so strong and happy! If you're looking for a personal trainer she's the one!
Rebecca Hamilton
Oct 30, 2020
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Kathletics has helped me get strength for many activities I do. I love Katharine's upbeat attitude. I love being able to do quite a variety of exercises and she helps me do more than I would normally do on my own. It gives me a good feeling and results. I highly recommend giving Kathletics a try. It is a relaxing way to get fit from my own home.
Monica Shelton
Oct 01, 2020
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Before I even started personal training with Katharine, I was super nervous. I didn't know what I'd be getting into or what I should be expecting. I had in my head that trainers would be super pushy about health things and it'd just be overwhelming. However working with Katharine has been such a joy!! She really encourages you to add healthy habits into your life and pushes you to get that last rep in!! She's super encouraging and I always look forward to our sessions together.
