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First and foremost, I would like to introduce myself to this wonderful forum Coach Sommer has assembled and made available to the public gymnastic enthusiast. The standard of this website and the people who use/used it is admirable. Secondly, even though It's never pleasant talking about injuries especially as a first poster here, it is a question i have been wanting to answer for about 3 years now and even though the "web" is crammed with so much info (ranging from very useful to extremely futile) i have not yet found any info concerning my "not so common" inquiry. So down to business.. I believe my wrist flexibility is fairly good yet there seems to be an issue when it comes to hand extension with the fingers totally extended. See, when my hand is parallel/or lets call it in line with my forearm, I can completely extend my fingers with very little effort. However, when i extend my hand(bringing my hand perpendicular to my forearm vector) my fingers start curling. It looks very similar to the so-called "Tiger claw" they use in certain martial arts disciplines. To be more specific, the PIP and DIP joints of the fingers are where the lack of ROM occurs, which leads to 2 conclusions: 1)Either my flexor musculature is way stronger that my extensors, which is basically a muscular imbalance issue; BUT the issue is that since the issue is at the PIP/DIP level it can't really be muscle(can it?) since that region is occupied (exclusively?!) by tendons and ligaments. (So since I dont know much about flexibility, let alone flexibility in tendons and ligaments..my conclusion remains..inconclusive 2)the other option may be that I have a lack of active flexibility in my "strong/stiff" hand flexor muscles (i.e.weak extensors + not flexible flexors). If I pull on the curled fingers while in a hand extended position, they can be passively stretched to be perpendicular to my forearm. But without an external force/assistance I cannot actively extend my hand. So my question is a twofold one: Does anyone have similar issues with this and if so do you know why this happens and how do you correct it? I attached a video demonstrating what I've tried to explain above. Thanks, BirzieX