The document discusses two human shock absorption systems - passive and active. It then focuses on how Joya shoes can provide support and therapeutic benefits for various foot, back, joint, and metabolic conditions. Joya shoes are designed to mimic the natural roll of the foot from outside to inside through a soft polyurethane sole. This helps exercise muscles and relieve pressure points while supporting natural movement. Conditions that may benefit include fallen arches, plantar fasciitis, back problems, joint arthritis, and diabetic neuropathy.

1. The medical background

2. 2 systems:
1. Passive shock absorbtion system
2. Active shock absorbtion system
The human shock absorbtion system

3. Discs
Tendons and
ligaments
Cartilage
The passive shock absorbtion system

4. „Small supportive and stabilizing muscles“
The active shock absorbtion system

5. Anatomy (left ankle-joint/ rear view)
Lateral upwards turn of heel
bone
Natural heel strike on lateral part
of heel bone(Supination)
The natural roll through

6. The natural roll through
Loading in the outer heel area during heel strike
(Supination). Roll-through begins.
Foot turns from outer to inner side (Pronation)
and midfoot twists inwards joint by joint (Torsion)
Roll-through from the forefoot to the big toe.

7. How Joya can be supportive with
foot pain

8.  Fallen arch
 Flat foot
 Skew foot
Joyas' supportive, therapeutic effect:
• Exercise muscles around foot joints
• Natural roll-through via outside of foot
Cause:
• Weak foot muscles (e.g. due to lack of exercise, rarely walking barefoot)
• Flat shoes without footbed

9.  Splayfoot
Joyas' supportive, therapeutic effect:
• Exercise muscles around foot joints
• Soft PU takes pressure off forefoot
• Natural roll-through via outside of foot
Cause:
• Wearing unsuitable footwear, especially high heels
• With splayed feet there is too much pressure on the second to fourth metatarsal heads,
creating fallen transverse arches.

10.  Metatarsalgia
Cause:
• Mechanical overload of forefoot (especially high heels)
• Fashionable,tight shoes
Joyas' supportive, therapeutic effect:
• Soft PU takes pressure off forefoot
• Natural roll-through via outside of foot

11. Joyas' supportive, therapeutic effect:
• Soft PU takes pressure off forefoot
• Natural roll-through via outside of foot
 Hallux Valgus (Bunions)
 Hallux rigidus (+ stiff big toe joint)
Cause:
• Mechanical overload of forefoot (especially high heels)
• Fashionable,tight shoes

12.  Plantar fasciitis
 Heel spur
Joyas' supportive, therapeutic effect:
• Exercise muscles around foot joints
• Natural roll- through (Relief of plantar fascia)
• Stretch of calf muculature (Sink in movement in soft PU)
Cause:
• Mechanical overload (mainly due to fallen arches or high arches..)
• Micro-injuries

13. How Joya can be supportive with
back pain, arthrosis and diabetes

14. Joyas' supportive, therapeutic effect:
• Pelvic movement as the foot sinks into the soft polyurethane sole
• Load equally distributed when standing
• Soft sole cushion impacts
Cause:
• Mechanical stress and overload
• Sedentary lifestyle (Shortens the hip flexor and
causes a forward rotation of pelvis)
Back problems

15. Joyas' supportive, therapeutic effect:
• Training of small stabilizing muscles around ankle- and hip joint
• Stabilization of leg- axis
• Cushioning effect of soft PU
Cause:
• Abrasion of cartilage due to mechanical stress and overload
Joint- hip – knee arthrosis

16. Diabetes is a metabolic disease.
It may result in:
 Nerve damage (neuropathy)
 Diabetic foot
Joyas' supportive, therapeutic effect:
• Soft sole relieves pressure on damaged structures
• Sensorimotor exercise (proprioception)
• Comfort last (stops rubbing)
Diabetes

17. Joya – the world’s softest shoe!