Programs Currently Open: School, Camp, Group Exercise, Pool*, Squash*, Pickleball*, and Fitness Center* (*Reservations required) | All other programming will be offered online at this time. For details visit


Here at the J, we offer our members access to a variety of group exercise (GROUPx) classes. Our GROUPx programming is designed to cover a range of exercises suitable for all ages and skill levels, as well as, encourage the development of community. Classes are offered every day of the week and at varying times in order to best meet your scheduling needs. End your day with a relaxing yoga class. If you're looking for something to get your heart pumping, check out our cycling class. Not sure which class is best for you? Talk to one of our friendly instructors, personal trainers, or Fitness Center floor attendants about a personal fitness assessment.


In-person (outdoor) group exercise classes are currently available for JCC members.

Join our Facebook Group: Wellness at the J for class updates including cancellations due to inclement weather

Meet Our GROUPx Instructors

Jenn Dietz

Education: Bloomsburg University, BA Psychology


  • AAAI Certified Personal Trainer
  • AFAA Certified Personal Trainer
  • ACE Certified Group Fitness Instructor

 Fitness Philosophy:

Practice FUNctional Fitness. I am a strong believer that the body was made to MOVE!  Once you stop moving, it’s harder to get going again, so move every day! To borrow a quote from a world-class trainer I  had the privilege of learning from… “In fitness we make the easy things harder so that the hard things will be easy”.

Classes: Cycling, Silver Sneakers, Fit for Life, Core & More, Circuit

Fun Facts: I used to coach elementary Cross Country and Track & Field (but I really don’t like to run). I also love to cook & eat!

Sara Mercer

Certifications: Silver Sneakers Foundation, Yoga and Circuit programs. Also completed a 200-hour Ashtanga teacher training program.

Fitness Philosophy:

Through modified postures and sequences while incorporating breath and mindfulness, my goal is to help my students build strength as well as reduce stress, gain peace of mind and feel good about themselves and their bodies. It is my hope that all of my students leave the studio feeling relaxed, rejuvenated and stronger. While also enjoying a laugh or two. I am inspired by the dedication and hard work of my students and the fun of teaching class.  

Classes: Vinyasa Yoga, Gentle Yoga, Chair Yoga

Fun FactI enjoy cooking and gardening. My husband and I take care of our dog and cat, spend time with good friends and like to travel -- hoping to someday return to Italy.

Jill Sabo

Fitness Philosophy:

I love the group fitness community. I believe being together to work out adds even more benefit than just the physical aspects.  I always strive to make your workout fun and successful. I look forward to meeting and getting to know all of you at the Fitness Center! We will have a great time working out together!

Classes: Pop Pilates - a fun choreographed fusion version of Pilates, Aerobics, Aqua and Silver Sneakers.

Fun Facts: I have been a Group Fitness Instructor for 4 years. I am also mom to an amazing 16-year-old young man and wife to an incredible husband! I teach Preschool when I am not at the gym and my newest hobby my husband introduced to me this year is Golf! I love it!

 Esther Salata


  • BS Environmental Science and Biology- John Carroll University (Cleveland, OH)
  • MS Conservation Ecology- University of MIchigan (Ann Arbor, MI)


  • Certified Primary Group Exercise Instructor - National Academy of Sports Medicine (NASM)
  • Certified Group Exercise Instructor - American Fitness at Athletics Association (AFAA).

Fitness Philosophy:

I am passionate about helping people achieve their goals through a fun and energetic style of instructing. With each class, my goal is to get you to sweat and work in an inclusive environment. My classes are geared towards those who are intermediate to high level fitness enthusiasts. One quote to describe my fitness philosophy would be “To be healthy: eat right, walk right, and talk to yourself right”.

Classes: Core and More, Super Sculpt

Fun Fact: I enjoy baking and trying foods from different cultures.

Andrew Yasenchak


  • BS in Kinesiology- Pennsylvania State University
  • MS Exercise Science and Health Promotion- California University of Pennsylvania


  • Corrective Exercise Specialist - National Academy of Sports Medicine (NASM)
  • Performance Enhancement Specialist – National Academy of Sports Medicine (NASM)
  • Certified Specialist in Speed and Explosion – National Association of Speed and Explosion (NASE)

Fitness Philosophy:

As a fitness professional, my philosophy is to train for quality over quantity. You can perform 1,000 repetitions of an exercise, but if you don’t perform them with quality technique, you will never see the results you desire. I find inspiration from seeing my clients achieve their goals and live happier, healthier lives. It is my hope to provide an active and healthy lifestyle and help fit the needs and abilities of every individual I come in contact with here at the JCC. 

Classes: Recovery, HIIT, Core & More, Circuit

Fun Fact: I have been a personal trainer for 5 years. I also coach youth soccer in my free time.

Sculpt, tone, and strengthen your entire body with low weight and high repetition

A comfortable and accessible yoga class for beginners and the independently mobile.

A series of stations of exercises to build strength and muscular endurance

A combination of pilates for the core and upper body and leg work using dumbbells

Cardio workout on indoor stationary bikes utilizing resistance and speed changes

Yoga that combines strength, endurance, balance, and flexibility.

Interval training that delivers a drenching work out and post metabolic boost


A different class each week. This is an easy way to try something new.

Strengthen and tone muscles with this low to no impact workout

Designed to increase muscular strength, range of motion, and daily living activities

Multiple tabatas make this a quick effective total body workout

A Bootcamp style class that combines circuits for different muscle groups using varied reps and intervals

Spiritual discipline including breath control, simple meditation and postures

Dance to great music, with great people, and burn a ton of calories without even realizing it

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