Joint stiffness is the reduced ability to move a joint freely and painlessly, often caused by inflammation, scar tissue, poor circulation, or prolonged immobility. It commonly affects:

• Knees
• Shoulders
• Hips
• Ankles
• Fingers and wrists

Joint stiffness can result from:

• Arthritis (rheumatoid or osteoarthritis)
• Post-operative recovery
• Injury-related immobilization
• Chronic inflammation or tendon thickening

Symptoms include tightness, pain with movement, and limited flexibility, often worsening after periods of rest or inactivity.

The reGener8 ZS1019 uses Thermal UltraSound™ Therapy to apply continuous ultrasound waves that produce deep, controlled heat, improving joint flexibility and reducing stiffness.

Mechanism of Action:

• Operates at 1 MHz, reaching up to 5 cm into periarticular tissue
• Continuous thermal stimulation increases:
  • Blood flow to stiff connective tissues and capsules
  • Tissue elasticity, reducing tightness and resistance
  • Nutrient delivery, enhancing joint lubrication and healing
  • Softening of fibrotic tissue, which restricts joint movement

Especially effective for:

• Post-surgical knees or shoulders
• Stiff joints from arthritis
• Frozen shoulder (adhesive capsulitis)

Post-cast or immobilization recovery

• Mode: Thermal UltraSound™ Therapy (Continuous)
• Frequency: 1 MHz
• Energy Intensity: 2.0–3.0 W/cm²
• Treatment Time: 8–10 minutes per joint
• Sessions per week: 2–3
• Total Duration: 4–6 weeks

Apply ultrasound gel and keep probe moving around the joint—especially over the capsule, ligaments, and surrounding musculature. Combine with stretching or manual therapy after treatment for optimal results.

Get in touch with us to to learn more about our solution.