Meet Our Founder

Mary Doyle

Personal Trainer

Park Avenue Fitness owner and American Council on Exercise (ACE) certified personal trainer since 1998, Mary has vast experience with a variety of clients, from preteens to seniors. Getting to know each individual client’s level of fitness, lifestyle, personality & goals, she assists them in building a healthy, balanced lifestyle. As well as a trainer, she has been a Fitness Director for close to 30 years, was a Health Club Owner for 11 years, & has certifications as a Specialist in Brains & Balance Past 60, Orthopedic Exercise, Senior Fitness, Functional Training, and Nutrition. She worked with everything from anorexic preteens to all ages recovering from injury or surgery: from the overweight & out of shape, to senior cancer patients. 

Mary believes fitness & nutrition affect every aspect of your life, emotional as well as physical. She identifies changes that will enhance your life as a whole, helping you make fitness plans that fit your life. Her expertise, encouragement, and humor have assisted her clients with weight loss, gain, or maintenance, injury rehabilitation, balance, flexibility, increasing strength, and stress reduction. Working with Mary means working together, in ways that benefit YOU. 

Meet Our Trainers

Joan Romero

Personal Trainer

Joan has over twenty years of experience training clients and teaching in Santa Cruz County gyms. She enjoys working with exercisers at every level of fitness and helping them to address their training needs. She trains both individuals and small groups and provides balanced, sensible workouts that deliver results.

She is an ACE (American Council on Exercise) certified Personal Trainer, and an ACE-certified Senior Fitness Specialist, Functional Training Specialist, Orthopedic Specialist, and Weight Management Specialist.

Her overarching philosophy is that the time her clients spend with her training should directly improve the activities of their daily lives! When she isn’t training, Joan enjoys spending time with her husband Mike, son Ben, and their elderly yellow lab Moses.

Marlyss Bird

Personal Trainer

Marlyss loves to explore new ways to stay active and strong. She is an avid runner, hiker, and mountaineer who also enjoys strength and circuit workouts. She has a lifelong passion for the outdoors and fitness and became a NASM certified personal trainer after a successful career in the corporate world. She is also a senior strength and conditioning consultant.

Her experience in talent acquisition for the retail industry gave her a wealth of interpersonal and motivational people skills, which she brings to her training sessions. She is excited to share her love of health and fitness with others and believes that it’s never too late to change your life.

When she’s not in the gym she enjoys hiking, cooking and baking, photography, and reading. 

Brittany Barrett

Personal Trainer

Brittany graduated from Cabrillo with an Associates in Kinesiology. Originally a culinary student, she switched focus to pursue her love of helping people achieve their health and fitness goals. She continues her passion for food by writing a healthy living/fitness blog with healthy recipes.

She is a NASM (National Academy of Sports Medicine) certified Personal Trainer, Weight Loss Specialist, Golf Fitness Specialist, ACE Senior Fitness Specialist, and Precision Nutrition Coach. Brittany has worked with multiple age groups, from teenagers training for their sport to seniors that are walker-bound and everything in between. She believes that personal training, whether in person or online, should be completely tailored to the client, keeping the personal in personal training.

When she’s not working, she enjoys creating healthy recipes for her blog, reading, and going for walks at the beach with her husband and dog.

Visit her blog at

Christy Wilson

Pilates Practitioner

Christy began her Pilates journey in 2006, after being diagnosed with bilateral hip Avascular Necrosis. Trained in classical Pilates for four years, she went on to complete training and certification in Body Arts Science International (BASI) mat and all apparatus 2010-2012. Additionally, in 2012 she completed BASI’s continuing education certificate course Pathologies & Injuries.

After having both hips replaced in 2013, she completed BASI’s Pilates Low Back Pain Extension/Flexion based certificates, as well as, Rotator Cuff & Shoulder Impingement, both in 2014. In 2016, she was certified as a Personal Trainer through American Sports & Fitness, and TRX suspension training utilizing Pilates as the foundation for both. She is also certified through Polestar whose curriculum has been shaped by concepts from biomechanics, motor learning, communication skills, and current research.

She continues her desire to implement Pilates in everyday life and believes that Pilates is medicine for the body and soul.

Linda Felicio

Tai Chi Practitioner

Linda is a Certified Tai Chi Practitioner by the Tai Chi and Qigong Association and by Grand Master Stephen Hwa Phd. whom she has studied Wu style Tai Chi and Qigong with for the last few 20 years.

Masters Hwa is a Grand Master and he has been teaching and certifying students over the last 70 years, both here in the USA and in China. He comes from a long lineage of Tai Chi Masters.

She focuses on the central element of practice, internal discipline, teaching her students to move from the body’s internal core – abdomen and back – rather than arms and shoulder. Tai Chi and Qigong are vital for longevity and robustness into old age. The health benefits from this practice are well documented.

Linda is retired from a 20-year career as a Trauma/ER nurse in Colorado. She holds a Master’s in Social Work and has taught Tai Chi to homeless and senior populations in Florida.

She is available for private or semi-private Tai Chi/Qigong sessions for those with special needs and anyone wanting to focus their training on balance, breathing, and flexibility.

Alli Sunshine Quick

Personal Trainer

Alli is an ACE Certified Personal Trainer and has been in the fitness industry for over 20 years. After recovering from a knee injury and subsequent surgery, she developed her love for Pilates and acquired that additional certification. Having taught classes in clubs and assisted living communities all over the county, she has experience teaching all formats from BootCamp, spin, Silver Sneakers, and everything in between. 

She developed her love for exercise growing up in a rural community where much of her time was spent outside. She had been a tomboy all her life, and in school, she was involved in many sports, including volleyball and track. She has facilitated running clinics as well. As a single mom, she enjoys spending every free moment with her daughter. Having started by pushing her in the stroller, they now run spartan races and triathlons together. 

She loves to share her joy of exercise with others, training clients aged 13-96. In particular, training seniors has been a specialty of hers for the past 15 years. Her message to her clients is to do what you can until you can do more. 

Monica Escudero

Personal Trainer

Monica has been in the fitness and injury rehab field for the past 31 years. She holds a Master’s Degree in Biomechanics & Kinesiology and specializes in helping rehabilitate injuries using safe and effective exercises for providing enhanced fitness to her clientele.

She works with clientele from 9 to 90 years old, helping them reach their goals through different methods of exercise. She has been teaching Iyengar-style yoga for the past 16 years focusing on yoga for healing injuries.

She has experience working with the elderly (most recently as Activities Director at Dominican Oaks), special needs, as well as Division 1 athletes.

If you have an injury or want to enhance your performance, Monica can help you.

Clark Carabelas

Personal Trainer

Clark is a Certified Personal Trainer and Corrective Exercise Specialist with the National Academy of Sports Medicine. He has a B.A. in Psychology and obtained a Masters of Physical Therapy. After 12 years of working in skilled nursing and orthopedic rehab centers in Southern California, he shifted his career and brought his physical therapy experience to functional integrated training to Santa Cruz.

Combining and developing both skillsets allowed him to implement his understanding and importance of posture, gait, balance, functional movement patterns, performance training, & tissue healing. He completed advanced studies in scientific back, core, & specialized sports conditioning in subjects such as golf, motocross, tennis, & horseback riding. 

Clark individualizes each program to his clients’ functional and/or performance needs. His experience extends to all ages and lifestyles, from the sedentary to the elite athlete, with or without complex medical histories. He wants nothing more than for his clients to become as independent from pain and health medications as possible and to enjoy a higher quality of life.

Cessy Medcalf

Personal Trainer

Cessy has 30 years of personal training and nutritional counseling experience, including her own fitness studio in Talkeetna, Alaska. Men and women alike enjoy her careful but challenging workouts to help them meet their fitness goals.

An ACE (American Council on Exercise) certified trainer, Cessy also completed the personal training certification at California State University Hayward as well as the Nutritional Studies Program at San Jose State University, the ACE Lifestyle & Weight Management Consultant certification, and is a Reiki Master.

She consistently focuses on educating clients on health, nutrition, and proper exercise techniques. Her personal hobbies include trail & beach running, weight training, hiking, and dancing.

Dan Shupe

Personal Trainer

Dan is an ACE Certified Personal Trainer since 1994. In addition, he holds a certification in Strength Training from California State University, Hayward.

His background includes participating in and/or training others in football, basketball, track and field, water polo, martial arts, swimming, diving, surfing, and yoga.  With such a great variety of interests and experience in personal training and teaching classes, he eventually moved to more management positions within the fitness industry.

Working at the Imperial Courts Tennis Club he has rekindled his passion for training and joined the Park Avenue Fitness Team.

His training philosophy is: keep it simple! He excels at breaking things down and helping you get started on your fitness journey regardless of your current fitness level. He mixes core strength training with cardiovascular conditioning and flexibility with a big dose of smiles and laughter.

If you would like to join our team please send us a message using the contact info here.