Meet the Praxis Team | Praxis Performance + Wellness

Management Team

  • PJ O’Clair


    PJ is a sought after, internationally award-winning health and fitness icon. She has published numerous fitness and therapeutic programs spanning many disciplines including Pilates for Breast Cancer Rehabilitation, Fascia & Movement and Athletic Performance for Cyclists. In addition to being a leader in the movement field since the 1980’s, PJ is a native of Beverly and has successfully trained generations of North Shore residents and their families for decades. She is well known in both the consumer and professional markets as a movement innovator inspiring her local clients and fitness professionals from around the world. PJ specializes in TRX® and STOTT PILATES® and has appeared in well over 80 fitness DVDs and digital platforms. She is highly driven, extremely passionate and committed to all aspects of health and wellness. In her spare time, PJ, along with her husband, is an avid cyclist and participates in many charitable events.

  • Caroline Cruz

    General Manager

    Caroline brings 20 years of management experience to Praxis. For almost a decade she has been an integral member of the management team at Clubxcel and Northeast Pilates. She holds a BA in Psychology and is a NASM Certified Personal Trainer and Certified STOTT PILATES® Instructor. She is well versed in all aspects of the fitness field yet is always eager to learn new methods to enhance both her craft and her clients’ fitness experience. Compassion for her students and quick wit are the trademarks of Caroline’s teaching style in both group classes and private sessions. Caroline is innovative, dynamic and well versed in areas of both prehab and post rehabilitation. She inspires her clients to improve their lives through movement regardless of age or physical condition. Caroline enjoys cycling, photography, pets and spending time with friends and family.

  • Jill Tache

    Community & Team Relations Manager

    Jill has held several leadership roles in the wellness industry over the last 20 years. As an ACE Certified personal trainer, she inspires clients to achieve a balanced lifestyle that encompasses all dimensions of health and wellness. Jill has a BA in Education and a commitment to lifelong learning. She empowers clients with her knowledge and provides them the necessary guidance to achieve their personal goals. Whether the client’s quest is to climb Mount Kilimanjaro or simply create balance in their daily life, she is committed to them each step of their journey. When she is not at work, Jill enjoys hiking, meditation, paddle-boarding, cooking, reading and spending time with her husband and two children.

  • Sabrina Marchelli

    Membership Coordinator

    Sabrina joined PJ’s team in 2008. For almost 8 years, she was the Membership Coordinator at Clubxcel in Hamilton and Manchester. She was also a group fitness instructor, sharing her love of fitness with clients in her TRX Suspension and Battle Ropes classes. After a few years in the auto sales business, Sabrina is excited to return to her fitness roots as Membership Coordinator with Praxis.

  • Karen Elwell

    Education Coordinator Northeast Pilates

    Karen is the Education Coordinator for Northeast Pilates. She is the first person aspiring Pilates instructors meet and she guides them through the education process with clarity and efficiency. Karen is also an instructor, specializing in Group Cycle and IndoRow. Prior to her work with Northeast Pilates and Praxis, Karen studied at Salve Regina University and spent several years in Boston as a commercial real estate agent. She lives in Manchester with her husband, 3 children and 2 dogs.

Our Excellence Begins with Our Team

  • Sheri Aggarwal


    Sheri is a Merrithew Lead Instructor Trainer specializing in STOTT PILATES®, Total Barre™ and CORE™ Athletic Performance. Her first career was as a college professor after earning a Ph.D. from Harvard University. She loved teaching, but her passion was in sports and wellness rather than in economics. She began training in Pilates in 2002, and although her interest in sports shifted, she loved how it improved her performance in all sports. Pilates proved invaluable when rehab was required for running injuries. Sheri shares her expertise and love of fitness with a diverse population including instructors, clients and athletes. She also holds ACE certifications in Personal Training and Health Coaching and is a running coach for USA Track & Field.

  • Bill Chisholm


    Bill Chisholm has been teaching yoga and stress management for 25 years. He certified in Kripalu Yoga, completed Herbert Benson’s Mind/Medicine course through Harvard and has done extensive study and practice in vinyasa, Iyengar, and PNF yoga.

    He is the former founder/owner of Cape Ann Yoga Center and has taught stress management and yoga at the Marino Health Center in Cambridge and several other medical facilities in the Boston Area. He is a fine art oil painter exhibiting throughout New England and a passionate student of the cello.

  • Mara Coleman


    Mara completed her STOTT PILATES® Mat and Reformer training with Northeast Pilates after joining the Clubxcel team in 2016. She fell in love with Pilates because it reconnected her to dance, which she studied at Loyola University in New Orleans. Mara’s classes are fun and upbeat – so much so that they often have a wait list!

  • Josh Crosby


    Josh is a former professional ultra-endurance athlete, Ironman World Champion competitor and World Champion rower. Currently he is a coach, fitness consultant, product tester and the race director/creator of the Misery Challenge in Manchester-by-the-Sea. Josh brings an elite caliber athletic pedigree to his work as a coach and co-creator of rowing-based fitness programs IndoRowTM and ShockWave, both of which can be found in 100’s of clubs world-wide. Motivation, encouragement, variety and a little tough love are key components to his formula which has brought results to thousands of shapes, sizes and abilities. Whether you are just getting back into shape or looking to go faster in your next race, let him guide and boost you to the next level.

  • Judy DiRubio


    Judy has been teaching Group Cycling classes since 2005. Since then, she has added TRX Suspension Training, TRX Rip Training, IndoRow and ShockWave to her list of credentials. Teaching is natural for Judy. She studied Education at Merrimack College. Early in her career, Judy was a secondary school teacher of French and Spanish. She later went into the banking and mortgage industries. As an avid cyclist, Judy has ridden in the Pan Mass Challenge since 2004 and has raised over $90,000 to benefit the Dana-Farber Cancer Institute. When she is not riding her bike, Judy spends time in her vegetable garden and with her husband and two Boston Terriers.

  • Carol Earle


    Carol Earle is a Merrithew Lead Instructor Trainer. She has traveled worldwide, training instructors in STOTT PILATES®, Total Barre™, CORE™ Athletic Performance, ZEN•GA™ and Fascial Movement. She is also a Certified Personal Trainer and is 200 RYT Yoga certified. She has worked with PJ for over 17 years and has taught most Group Fitness formats including SPINNING®, TRX® and ZUMBA®. Carol’s background includes dance training at the New York School of Ballet, American Ballet Theatre, Martha Graham School and the Cunningham Center. She holds a BFA in Dance from SUNY Purchase and directed the Windover Dance Company in Rockport, MA for over a decade. Early in her career she was a music publicist in LA, working with clients such as Prince, James Brown and Smashing Pumpkins. Carol brings her creativity, strong knowledge of movement and a keen eye for form to her work with clients as she helps them achieve their individual training goals. Her hobbies include cycling around the North Shore, gardening and farm-to-table cooking.

  • Valerie Hopkins


    Val brings to Praxis her experience as a former U.S. National Speed Skating Team member and an elite cyclist. As a busy mom of two boys, the current New England Criterium Cycling Champion has a methodical and practical approach to making the most out of every minute of her workouts. Val grew up figure skating, and after graduating from Boston University with a B.S. in Human Movement Studies, she developed a strength-training program for the Skating Club of Boston. She holds certifications as a NASM Personal Trainer and as a USA Cycling Coach. Her passion for life-long fitness will energize and inspire you in personal training sessions and group fitness classes.

  • Jenn Parisella


    Jenn, a lifelong resident of Beverly, is ACE Certified and has taught group exercise on the North Shore for over 30 years, including 20 as a Certified Personal Trainer and Spinning instructor. Her favorite classes to teach are indoor cycling, strength training, and boot camp/HIIT style formats. Jenn is married with 4 children. She believes that “staying active and fit has not only enhanced my life, but it has been extremely rewarding to help others achieve their fitness goals as well.”

  • Inger Pols


    Inger teaches Indoor Rowing and Group Cycle classes at Praxis. She is a Certified Personal Trainer, Holistic Health Counselor and Holistic Stress Management Instructor. She is also a founding Editor of the New England Health Advisory. She is the author of two books and numerous articles on health and wellness. After studying at Institute for Integrative Nutrition in NYC, Inger led the marketing initiatives at a women’s wellness company focused on natural healing. Prior to her wellness career, Inger worked in corporate America as a marketing executive. She holds a Bachelor’s Degree from Yale University and an MBA from the Columbia Business School. In her spare time, Inger likes to travel and spend time with her 2 children.

  • Natalie Rulli


    Natalie has been a STOTT PILATES® Instructor since 2008. Prior to joining the Northeast Pilates Instructor Trainer team in 2014, she was the Pilates Director at Colorado Athletic Club in Denver. She holds an ACE certification in Personal Training and has taught ZEN•GA™, TRX® and Total Barre™. Natalie is also a Registered Dietician practicing with CVS Coram Healthcare. When she is not working, Natalie enjoys spending time with her husband, son and two daughters.

  • Emily Shawn


    Emily practiced competitive synchronized swimming for many years, and was drawn to yoga as a complement to her swimming experience. She completed her 200 hour yoga teacher training with Willa Worsforld at Solstice Power Yoga. After falling in love with aerial trapeze yoga while living in Ecuador, she completed the Yoga Trapeze Teacher training with YogaBody in 2018 and has devoted herself to being upside-down ever since.

    Before teaching yoga and aerial yoga, Emily graduated from Boston University with a degree in Anthropology and Religion, and holds an additional graduate certificate from Salem State University. She teaches a practice based on balancing strength and flexibility with a healthy dose of mindfulness.

  • Tori Welch


    Tori, teaches Group Cycle classes at Praxis. She played Division 1 field hockey on the America East Championship and America All Rookie Field Hockey Teams at UNH She also danced competitively for 15 years. In addition to Group Cycle, Tori teaches Les Mills BodyPump. She is an animal lover and spends her free time with her dog, Bleu.