FIS On Demand

FIS OnDemand is a joint-friendly strength training app designed for real bodies over 50. If you want to get stronger without hurting your joints, improve mobility, and finally feel confident in your body again, this is your new home.

Created by Lauren Eirk, MS, a biomechanics and muscle-health expert with 40+ years of experience, FIS OnDemand uses the FIS 5-Step Isometric Method™ to help you strengthen your muscles from the inside out. Every workout blends science, precision, and intelligent progressions so you can move pain-free at any age.

What You’ll Improve

• Reduce joint pain and stiffness
• Build muscle safely and effectively
• Improve balance, mobility, and posture
• Strengthen around past injuries or surgeries
• Support bone density with safe resistance training
• Restore confidence in your everyday movement

What’s Inside the App

• Hundreds of joint-safe workouts for all levels
• Programs for back, hip, knee, shoulder & neck pain
• Bone-safe strength training for osteopenia & osteoporosis
• Integrated Isometrics, Pilates, mobility training & functional strength
• New videos added regularly
• Beginner, intermediate, and advanced workout paths
• Filters by body region, equipment, duration, and intensity
• Favorites & history tracking to monitor progress
• Private community support and guidance

Who This App Is For

Adults 50+ who want to:
• Build strength without pain
• Train around injuries or joint replacements
• Improve functional movement
• Stay active, independent, and strong for life

Expert Guidance, Real Results

Lauren is a certified Muscle Activation Techniques Specialist (MAT-Rx), Yoga Therapist, and educator known for helping adults overcome pain and regain strength safely.

What users say:
“It's like having a physical therapist coaching me through every workout.”
“I’m pain-free after 20 years.”
“I feel stronger in my 60s than I ever imagined possible.”

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▷ New? Subscribe in the app to get instant access.

Fitness Integrated Science TV offers auto-renewing subscriptions.
You'll receive unlimited access to content on all your devices. Payment is charged to your Account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews each month unless canceled at least 24 hours before the end of the current billing period, or the trial period (when offered). Cancel anytime in Account Settings.

For more information see our:
-Terms of Service: https://fisondemand.com/terms
-Privacy Policy: https://fisondemand.com/privacy