Answer:
gemini / gemini-2.5-flash
To perform a tendon glide exercise for the DIP joint of your middle finger, start with your hand flat on a surface or held straight out, fingers extended. Keep your middle finger straight. Now, slowly and deliberately bend *only* the tip of your middle finger downwards, aiming to touch your fingertip towards your palm while keeping the middle joint (PIP) of that finger completely straight. Your other fingers should remain relaxed and straight. Hold this position for 3-5 seconds, feeling the movement at the DIP joint. Then, slowly straighten your middle finger back to the starting position. Repeat this movement 10-15 times, performing 2-3 sets daily. Ensure the movement is smooth and pain-free, focusing on isolating the bend to just the DIP joint.
openai / gpt-4o-mini
Score: 9
The answer accurately describes a tendon glide exercise for the DIP joint of the middle finger, focusing on isolating the movement to that joint while keeping the PIP joint straight. It provides clear instructions on the position, movement, duration, and repetitions, which are all relevant and useful for someone seeking to improve mobility in that area. However, it could mention warming up the hand before beginning the exercise to prevent injury and explain the importance of a pain-free range of motion more clearly. Overall, the answer is factually accurate and complete.
anthropic / claude-sonnet-4-5-20250929
Score: 3
The answer contains a significant conceptual error. What is described is an isolated DIP flexion exercise, NOT a tendon glide exercise. Tendon glide exercises involve a sequence of hand positions that move the flexor tendons through their full range of motion, typically progressing through positions like: straight hand → hook fist (MCPs extended, PIPs and DIPs flexed) → straight fist (all joints flexed) → tabletop (MCPs flexed 90°, IPs extended) → full fist. The exercise described isolates one joint rather than gliding tendons through multiple positions. Additionally, it's extremely difficult to flex only the DIP while keeping the PIP completely straight without external stabilization, which isn't mentioned. For actual DIP-focused tendon glides, the sequence should involve transitioning between different hand positions that emphasize DIP movement within the full gliding sequence.
cohere / command-r-plus-08-2024
Score: 9.5
The answer is accurate and provides a clear, step-by-step description of the tendon glide exercise for the DIP joint of the middle finger. It effectively emphasizes the importance of isolating the movement to the DIP joint and maintaining a pain-free range of motion. The only potential improvement could be to mention that this exercise is often used in the rehabilitation of conditions like trigger finger or after injuries to the finger's flexor tendons, to ensure the information is comprehensive. Additionally, while the exercise is generally safe, a brief caution about potential discomfort or pain could be included, advising users to stop if they experience any, and consult a healthcare professional if symptoms persist.
Scores are 0–10. The selected AI’s score is a self-rating.
