Strength & Conditioning Core Challenge

Strength & Conditioning Core Challenge

When it comes to fitness, everything stems from the strength of the core. This Five-Day Strength and Conditioning Core Challenge Series includes progressive core-focused workouts that are designed to introduce you to the foundational principles that make up a strong health and fitness program. These exercises target the abdominal, back, chest, shoulders, hips, and pelvic floor. This series of workouts is designed to help you build solid trunk and spine mechanics with exercises that are prescribed to help clients improve range of motion, increase muscle strength, and develop solid pelvic stability. Instructor Lauren Eirk is a resistance training specialist, a Certified Full Body Muscle Activation Techniques RX Specialist, and Registered Yoga Therapist. She will teach you how to use the laws of biomechanics to serve your body in a way to get great fitness results.

Why is core strength important? The muscles that attach to our trunk and spine are important because they stabilize the center of the body so that the muscles in the limbs of the appendicular skeleton can pull against a stable platform as we move. The core functions in the realms respiration (breathing), continence, postural control, joint/segment stabilization, movement generation and many types of energy transfer. A sedentary lifestyle and poor diet significantly increases the rate of muscle mass loss. Changes in body mechanics, like excessive abdominal fat or prolonged periods of sitting, can lead to significant muscle weakness and spinal anatomy changes which can result in pain, tightness, and overall dysfunction.

No matter what age you are, your muscle tissue can be strengthened and even regenerated with the right lifestyle changes. As we age, we naturally lose muscle, and after age 35 we can lose approximately 8 per cent of muscle per decade and this can almost double after the age of 70. Muscle loss can be accelerated by illness and can lead to an increased risk of falls and fractures, and delay recovery from illness. Our muscles play a vital role in our health at all stages of life, placing forces on our bones, producing physical strength, assisting in organ function, and boosting our immune system

Fitness Integrated Science™ is a fitness and health methodology that combines modern bio mechanic principles with unique and progressive strengthening techniques to guide our clients to improved muscular balance, joint stability, and range of motion. Fitness Integrated Science™ is also a Wellness and Personal Training Center in Louisville Kentucky offering private yoga, Pilates, personal training, and yoga therapy for individuals as well as small groups. We have a 500-hour teacher training program, Yoga Integrated Science™, that is registered through Yoga Alliance and provide Workshops and certification courses in Yoga, Pilates, Fitness and Personal Training.


Lauren Eirk is the creator of Yoga Integrated Science™ program, offering a unique, sound, biomechancial approach to Hatha Yoga designed to respect joint structure while improving muscle responsiveness and strength. She has spent her life teaching and studying in the health, fitness, and yoga communities, learning from some of the top minds of our time. Having worked in the health education field for over 30 years, Yoga I.S.® is her vision. Lauren’s training has made her highly sensitive to clients with complex, on-going neuro-muscular issues, helping her clients to navigate an effective exercise plan to accomplish their goals. Lauren has since expanded into Pilates Integrated Science™, Strength Integrated Science™, and Fitness Integrated Science™

Lauren’s work has been featured in such magazines as Yoga Journal®, Self®, IDEA® Fitness Journal, American Fitness Magazine, ACE Fitness Magazine, American Fitness Magazine, Fitness First Quarterly Magazine, AKWA Aquatic Exercise Magazine, Business First, Natural Awakenings, and New Woman Magazine. Lauren has presented for such fitness-health organizations and education conferences as IDEA World, IDEA Personal Trainer, Inner IDEA, FACTfest, AFPA, DCAC Fitness, AFS Succeed! Conference, ACSM Fitness Summit, AEA/ IAFC, ECA, Can-FIT Pro, Fit in the City®, Fitour®, Resist-A-Ball®, and Sarah’s City Workout®

+ B.S. Physical Therapy, University of Louisville
+ B.A. Art, French, University of Louisville
+ M.S. Health Fitness Management

Lauren is a Certified E-RYT 500 Level Registered Yoga instructor and has studied Yoga with Master teachers David Swenson, Sianna Sherman, John Friend, Mitchel Bleier, Francois Rault, Doug Keller, Doug Swenson, Judy Rice, Rodney Yee, Beryl Bender Birch, John Schumacher, and Ramanand Patel. She is a Certified Yoga Therapist C-IAYT with the International Association of Yoga Therapy and a Yoga Alliance® Continuing Education Provider (YACEP), she is the developer of the Yoga I.S.® method for Yoga, Barre, and Pilates-based classes, including the Yoga I.S. Mechanix™ method. Lauren is a mentor for AFS Association of Fitness Studios.

Lauren is a Mastery Level Muscle Activation Techniques™ Certified Specialist and MATRx Certified Full-Body Specialist Full Body, including the Lower Leg & Foot as well as the Wrist & Hand. Lauren’s MATRx delineation makes her one of 57 world-wide leading experts in the treatment of muscular Imbalances. Lauren is an International Continuing Education Provider with an established personal training business since 2006, held in the Yoga Integrated Science™ Personal Training Studio. Lauren has been a certified group fitness instructor for nearly three decades and has run many group fitness programs. She is the creator of Yoga with Resist-A-Ball®, a former Resist-A-Ball® and FiTour® Master Trainer and the recipient of the ECA OBOW Award 2007 “Most Mindful Program”. Lauren has taught group and private classes in over 27 fitness centers since the start of her fitness career in the year 1988. She has many years of experience teaching in elementary schools, college universities, hospitals, fitness centers, and community centers in various local, national, and international venues. Lauren specializes in fitness rehabilitation, health fitness management, program development, and continuing education. Lauren is a published author with extensive television and video experience. Lauren is Lauren is a Brand Partner with SAVVI clothing, a former brand influencer for Athleta® Brand clothing, a member of the Body Bar® Instructor Team with Yoga and Pilates programming, and an avid animal-rights advocate, collecting donations and hosting events in her business to benefit the Kentucky Humane Society.

Strength & Conditioning Core Challenge
  • Video 134 | Day 1 Strength & Conditioning Core Challenge Series with Lauren Eirk

    Trunk Rotation is the foundation of any trunk and spine conditioning program. Muscles such as the external obliques, internal obliques, rectus abdominis, and transverse abdominis are some of the muscles that are targeted in this video. The Theraband will be used as a challenge to create resista...

  • Video 135 | Day 2 Strength & Conditioning Core Challenge Series with Lauren Eirk

    Trunk Flexion builds upon the foundation of our anatomy, creating a strong foundation to move from. In this workout, we will target our rectus abdominis and psoas muscles to support our lower back, allow us to bend forward, and help us move more freely. The small ball provides support and anchor...

  • Video 136 | Day 3 Strength & Conditioning Core Challenge Series with Lauren Eirk

    Hip Flexion is an essential component of our everyday function. Hip flexor muscles help us to flex & stabilize the spine as well as lift our legs to be able to walk, climb, and squat. In this workout, we will target our iliacus, psoas major, rectus femoris, tensor fascia latae, and sartorius mus...

  • Video 137 | Day 4 Strength & Conditioning Core Challenge with Lauren Eirk

    Hip Rotation happens every time our spine moves! The hip joint is made up of the femur and pelvis. Since the pelvis attaches into the spine, they function together. Some of these muscles include obturators, piriformis, quadratus femoris, gemellus, gluteus maximus, medius, and minimus muscles. ...

  • Video 138 | Day 5 Strength & Conditioning Core Challenge with Lauren Eirk

    In today's culture, we spend large amounts of time in a seated posture. For this reason, many of the muscles that hold us upright in our back become weak. Posture becomes more rounded and shoulders tend to roll forward. In this video, we will target spinal extensor muscles, internal / external ...