To test flexor digitorum superficialis, one finger is flexed at the proximal interphalangeal joint against resistance, while the remaining three fingers are held fully extended (to inactivate flexor digitorum profundus).
Because we are too, obviously. Today Pixar Animation Studios announced updated release dates for each movie, so here they are so you can mark your calendars accordingly: The Incredibles 2 will come out June 15, 2018 and Toy Story 4 will come out June 21, 2019. Toy Story 4.
We understand that you might have seen the headline and were hesitant to click in because the last time we talked about a theory regarding The Incredibles, it was really dark and sad. We promise this one is cool, and not just horribly depressing! Pinkie swear! So the sequel to the 2004 Pixar movie is coming out in 2019, which seems really far away. But when you consider that fans of The Incredibles have been waiting since the early 2000s for a followup film, another 3 years shouldn't hurt. Just kidding, it will hurt.