Effects of Neuromobilization, Tendon Gliding, and Robotic Glove-Assisted Exercises on Hand Osteoarthritis

Tendon gliding exercises were performed for both hands in a sequential manner, with 20 repetitions in 3 sets. The exercises started with fingers and wrist positioned in extension. Subsequent positions included the hook position, full fist position, MCP joint at 90° flexion with finger extension, and MCP and proximal interphalangeal (PIP) joints at 90° flexion positions, with a 5-second hold at each position. During the TG exercises, the hand and fingers are brought to five different positions

The neuromobilization exercises included median, radial and ulnar nerve mobilizations. For median nerve mobilization, the patient's wrist was placed in extension, the shoulder in 90° abduction, the forearm in supination, the elbow extended, and the head positioned in lateral flexion toward the same side. For radial nerve mobilization, the wrist was initially placed in flexion and ulnar deviation, the forearm in pronation, with the elbow extended, and the head positioned in lateral flexion toward the same side. For ulnar nerve mobilization, the wrist was positioned in extension and radial deviation, the elbow fully flexed, the forearm in pronation, the shoulder in 90°abduction, and the head in lateral flexion toward the same side. The head was then moved into lateral flexion toward the opposite side while extending the elbow. The neuromobilization protocol was performed in 4 sets of 10 repetitions, with a 5-second hold for each movement.

The robotic glove set used in this study weighs 497 grams, powered by a battery weighing 170 grams that provides a 5 V voltage and 1 A current. Made from elastic fabric, the glove wraps around all fingers on both the dorsal and palmar sides. The palm section of the glove is hollow. The device features four Velcro straps: one at the wrist, one across the web space between the thumb and index finger, one between the second and third fingers, and one between the fourth and fifth fingers, securing the inner side of the wrist. The robotic glove facilitates passive joint movements through pneumatic air pressure. The device offers several benefits, including proprioceptive stimulation, visual input, increased functional independence, pain and edema reduction, enhanced lymphatic and blood circulation, improved coordination and hand dexterity, as well as increased grasp and compression strength.

Wrist extensor exercise, wrist radial deviation exercise, and wrist flexor exercise were perfomed using a 1-kg dumbbell. Holding the 1-kg dumbbell against gravity for 10 seconds, with the shoulder flexed at 90°, elbow extended, and forearm in pronation position. Squeezing exercise with a green soft ball (Thera-Band; diameter: 5 cm); the ball was squeezed for 10 seconds, followed by relaxing. Pushing a blue Pilates ball (Thera-Band; diameter: 20 cm) against the wall with fingers in extension position. Squeezing a black Pilates ring (Thera-Band; diameter: 38 cm) with the fingers, while the MCP joints are in extension and the wrist in a neutral position.