Youth Fitness Coaches Professionals to Know 2025

Karl Mergille is an NASM Certified Personal Trainer and Nutrition Coach with 10+ years of experience coaching online. An NPC natural bodybuilding competitor and former athlete, he specializes in working with men and women over 30, former athletes getting back in shape, and busy professionals who want real results without crash diets. Karl has helped hundreds of clients transform their bodies through sustainable nutrition, smart programming, and consistent accountability. He is available for quotes on fitness, fat loss, nutrition, body recomposition, training for busy people, former athlete comeback stories, and overall health.

I am a fitness trainer who specializes in field of fitness and yoga more than 10years, and also help to motivate people for fitness. I writes with empathy and accuracy and has a knack for connecting with readers in an insightful and engaging way. I contributes regularly to FreakToFit.

My name is Archna Sharma, and I have been working in the fitness field for the last nine years. Fitness has always been a big part of my life, and I love helping people become healthier and more confident. In 2022, I started Fitness Fasto so I could share easy-to-follow workouts, simple nutrition tips, and practical fitness advice that anyone can use in their daily life. Today, I have a strong online community, including 90K+ followers on Instagram, active followers on Threads, and fitness content shared on Medium and Pinterest. My business is also listed on Google, and my website fitnessfasto.com is where I share my programs and fitness guidance. My goal is to make fitness simple, enjoyable, and possible for everyone—no matter their age or lifestyle.

Len is an award-winning, best-selling author and a motivational speaker in the fight against childhood obesity. He is recognized nationally for his innovative wellness events. Recently, you may have seen Len on such media giants as CNN, Good Morning America, CNBC, The Today Show, ESPN, Nickelodeon, MSNBC, The Fox Channel as well as the front page of The Wall Street Journal. Len has served as a consultant to the President's Council on Fitness, Sports and Nutrition as well as a spokesperson for the American Heart Association on the topic of childhood obesity. He has written articles for various media outlets including US News & World Report, Sports Illustrated for Kids, FOX News, MSN, AOL, PBS, Muscle & Fitness, USA Today, Working Mother, The National Wildlife Federation and Yahoo. Recently, Len worked with The New York Times Company as an expert in the field of children's health. a3.png Len has received praise for his leadership in the fight against childhood obesity from professional athletes, celebrities and Presidents of the United States. He has been invited to the White House on numerous occasions. He has also won multiple awards at the state and national levels for his efforts to keep children healthy and fit. Some of Len's books have reached the #1 spot under the category of exercise on Amazon's best seller list. Len's approach to children's health, fitness, and wellness is quite simple but extremely effective influencing millions of children worldwide to exercise. Len is best known for creating Project ACES, an event in which millions of school children worldwide exercise simultaneously in May each year.

As a NASM Certified Nutrition Coach (CNC) at Same Day Supplements, I specialize in providing science-backed, personalized nutrition guidance to help individuals achieve their health and fitness goals. With expertise in dietary planning, supplement strategies, and performance nutrition, I work to empower clients with practical tools for lasting results. My approach blends evidence-based knowledge with real-world application, ensuring sustainable habits that support both everyday wellness and peak athletic performance.

Athlete and fitness writer with 15+ years of structured training in track and field, Olympic weightlifting, powerlifting and general fitness. My focus is on the intersection of training, evidence-based nutrition, supplementation, and recovery. I founded VitalEdgeFit.com to bridge the gap between scientific research and practical fitness advice.

Alycia Carrillo CSCS, MS is the founder of The Modern Athlete Method, a program designed to coach high effort, high powered women to obtain modern athlete bodies & minds using high level quantitative and qualitative data analysis with personalized support. With dual master’s degrees in Sports Medicine and Sport Psychology, she blends science-based training, practical application and real-life flexibility to deliver programs that are both effective and fun. A collegiate athlete herself, Alycia’s mission is to bring high-quality, performance-driven coaching to high-achieving women who want strength, confidence, and conditioning that fits seamlessly into their lives. Certifications: NSCA-CSCS (March 2016-present) Certification #: 7248040627 ALTIS Apprentice Coach Program (Feb 2020) ALTIS Need For Speed (Dec 2025) Disordered Eating Informed (Dec 2025) Precision Nutrition Level 1 (March 2020) Pain Free Performance Specialist (August 2021) Bioforce Certified Conditioning Coach (April 2023) Notable Accomplishments: USC Track & Field Team Member 2008-2010 Former Strength & Conditioning Coach at University of Kentucky with men & women’s dive (2 All-Americans), women’s tennis (Indoor National Doubles Champions) and women’s cheer (2018 & 2019 UCA National Champions, 3 USA National Team Members) Speaking & Publications: “2013 Triple Crown + HIC Pro Injury Report,” Surfer’s Medical Association, August 2015 “Integrating Sport & Exercise Psychology Principles in the Weight Room,” Midwest Sport and Exercise Psychology Conference, Feb 2019 “Integrating Sport & Exercise Psychology Principles in the Weight Room— Extended,” Kentucky Clinic, April 2019 “Exploring Career Paths in Strength & Conditioning,” University of Hawaii, July 2020

As the founder of Embrace Your Fitness, my dedication to creating tailored health and wellness programs spans over 15 years, with a focus on fostering fitness that is both enjoyable and sustainable. My work has empowered a broad spectrum of clients, ranging from corporations to sports teams, to embrace a healthier lifestyle through customized, innovative solutions. My recent publication, "Yes! Commit. Do. Live," encapsulates my approach to redefining aging and promoting brain health, integrating personal training with mindfulness meditation. This reflects my commitment to guiding clients on a transformative journey towards achieving their wellness aspirations and living their most authentic lives.

Movement professional with a trained eye for detail. Curious, getting a little better each day, and focused on delivering a specific, motivational, and educational training plan. A hard worker, natural leader, and true believer in the phrase "knowledge is power."

Hi, I'm [Foysal Mahmud], and I'm thrilled you've found your way to The Workout Haven. This space was born from a simple but powerful belief: fitness should be accessible, enjoyable, and sustainable for everyone, regardless of where you are in your journey. Whether you're taking your first steps toward a healthier lifestyle or you're a seasoned fitness enthusiast looking for fresh perspectives, you've come to the right place.

Richard Bennett is the founder of Calibre Performance Coaching, providing personal training, strength and conditioning, and boxing coaching in Redditch, UK. With over 15 years of coaching experience and a strong background in combat sports, Richard has worked with general population clients, amateur athletes, and professional fighters. Richard holds extensive qualifications including a Level 4 Certificate in Strength and Conditioning (CIMSPA), Level 3 Personal Training certification, England Boxing Level 1 Coach certification, and a 1st Dan Kickboxing Black Belt. He has competed in boxing, Muay Thai, and kickboxing competitions, giving him firsthand understanding of training demands and performance optimization. As a training educator, Richard mentors others in the industry while continuing to expand his expertise through his own ongoing education.

Certified nutritionist and fitness trainer and founder of Quarter to Fitness, a women-focused wellness brand promoting sustainable fitness and balanced nutrition for women 25+.

I'm the founder and head coach of Siwicki Fitness, an online fitness platform delivering live virtual workout classes to women across the United States. Before launching Siwicki Fitness in 2020, I was a top 1% globally ranked group fitness instructor for Equinox, teaching at their flagship locations in DC, Bethesda, and Tyson's Corner. Siwicki Fitness was built around a simple idea. Women don't need another perfect program. They need one that fits around the life they already have. What sets us apart is the live virtual format. Instructors see members on camera, call them by name, and give real-time feedback. Members range from their 20s to their 70s and average 27 sessions in 8 weeks. I also run The Bridal Bootcamp, a wedding fitness program helping brides prepare for their big day with confidence and strength rather than crash dieting. Personal note: I was diagnosed with Type 1 Diabetes at age 5 and have managed my health through fitness ever since, including playing football at Dartmouth College. I'm available to comment on managing chronic conditions through exercise, virtual fitness, women's fitness across life stages, wedding fitness prep, and the realities of online coaching versus in-person training.

Christine Beavers, DPT - Pediatric Physical Therapy Expert Dr. Christine Beavers is a licensed physical therapist and founder of Growing Gains Therapy, a boutique pediatric practice serving Manhattan and Brooklyn families. With extensive experience in NYC's top private special education schools, she offers expert insight into child development, sports readiness, and family wellness. Expert Commentary Available On: Preschool and kindergarten readiness assessments Building children's strength, endurance, coordination, and balance Youth sports participation and specialization concerns Strength and conditioning for young athletes Fundamental movement skills that enhance future sports performance Gross motor milestones and developmental red flags When parents should seek therapeutic support for their child Child safety and injury prevention Promoting health and wellness in urban children Age-appropriate physical activities for NYC kids Dr. Beavers' practice serves both private-pay families and children receiving DOE-funded services, giving her comprehensive insight into child development across diverse NYC communities. She helps parents navigate everything from crawling to collegiate athletics while ensuring children build the physical confidence needed to thrive in the city. Background: Doctor of Physical Therapy degree, extensive experience in NYC private special education settings, founder of Growing Gains Therapy offering occupational, physical, and speech therapy services.

I've in the fitness industry for over 15 years now with that past 6 working as a full time writer. This includes creating educational content that's applicable to general populations as well as breaking down research and more complex topics. My accolades include; - Masters in Exercise Science - NSCA CSCS - ISSN CISSN - ACSM EIM (Exercise Is Medicine) - NSCA Speaker - Published in NSCA COACH In addition, I live a fairly active lifestyle, being engaged in an array of sports throughout my lifetime; - Strongman - Running - Triathlons - Padding sports This gives me academic education, vast experience in creating content , and applicable experience in the real world. Collectively, this allows me to know what research says but also what's important to the reader in the real world.

I am the owner and primary trainer at A-Team Health & Fitness, my mission is to help you reach your fitness and nutrition goals in & out of the gym. We focus on customized personal training and nutrition programs so that you become satisfied, confident and stronger in your everyday life. If you're looking for in-person training, online training, nutritional coaching and a community that'll help keep you accountable I'm here to help!

I am a personal trainer, health coach, nutritionist and a weight loss coach. I haven’t always been though… I used to be really overweight, was unfit, suffered with burnout and comfort ate… a lot! Then one day I decided enough was enough. I returned to cycling, learnt about nutrition, started weightlifting, worked with great coaches and trainers, refined my time management skills, and took part in challenges that terrified me. I then went back to college to learn more and get qualified as a personal trainer and coach. I’ve been training for over nine years. I lost over four stone and I have kept the weight off for many years, and my mental health has never been better. I’ve completed many long-distance endurance cycling events including an off-road coast-to-coast and a 200-mile one-day road sportive. Having run and grown my own businesses for over 20 years, I understand how tough it is juggling a busy life with the need to keep fit and healthy. I now help others achieve their own goals and specialise in “Weight Loss Coaching“, “Personal Training & Health Coaching“, “Menopause Support Coaching” and “Fitness & Nutrition Coaching for Sports Events“. I am based in Farnborough, Hampshire with my own private studio. I offer fitness training and coaching online with some in-person options as well.

Marc has over 20 years experience training: in a sports medicine/rehab setting, as a group exercise instructor, and as an independent personal trainer. In that time, he has worked with a diverse clientele with a wide variety of physical abilities, and has gained extensive knowledge of orthopedic injuries and their treatments. Along the way, he has developed an intuition for helping clients dial in complex exercises and accessing pesky muscles notorious for insubordination, earning him the nickname ‘The Glute Whisperer’. Additional experience includes weight training (Olympic lifting, power lifting, and otherwise), group exercise training, TRX, HIIT, and he has been running ski conditioning exercise groups for most of his career. My approach to training is founded on the ideas that workouts should be functional, straightforward, and efficient - think less ‘Instagram exercises’ involving various contraptions and weird equipment, and more functional, repeatable, and economical exercises that replicate your sport or activities; that they should be comprehensive - looking at the body as a whole, rather than focusing on specific parts or movements; that they should be educational - teaching the client to use his or her body correctly and efficiently in both sport and everyday activities; and lastly, that they should build confidence as well as strength, and that making a workout fun is as important as all else. Education: BS Kinesiology with Emphasis in Exercise Testing, Analysis, and Prescription Certifications: Certified Strength and Conditioning Specialist (CSCS) Level 1 USA Weightlifting Coach (USAW-L1) Certification in Applied Functional Science (CAFS) Level 1 and 2 Certifications in Functional Movement Systems (FMS)

I am Founder of Active & ageless where we specialise in health & fitness solutions for over 50s. I love what I do and run my business like my life. If it's not scaring me a little i'm not pushing hard enough. Now sometimes I want to be lazy and idle also, and I enjoy it when I do, but I am disciplined enough that it never lasts. I strive to train hard, to work hard and at times simply enjoy life and even rest hard (and this could be surfing 10 foot waves in Fiji or doing a 50km hike). With a background as an emergency nurse, Army medic, and oil and gas industry medic, I’ve spent my career in high-pressure roles. With Active & Ageless, I’m redefining fitness for over-50s—growing to multiple locations and partnering with aged care facilities in just five years. After multiple back surgeries and advice to ‘play it safe,’ I chose the opposite: running ultra-marathons, surfing big waves, boxing younger opponents, and building a business that inspires strength, resilience, and a life without limits.