Issho ni Training: Training with Hinako
Genres: Sports, Ecchi
Type: OVA, Episodes: 1
Aired: Apr 24, 2009
Studio: Studio Hibari
Source: Original
Rating: PG-13 - Teens 13 or older
Synopsis:
"First muscle training animation ever," a 16-year-old girl named Hinako leads exercises in push-ups, sit-ups, and squats. Hinako was once a human, but she was turned into an anime character when she was a second-year middle-school student. 

(Source: ANN)