Chapter 66

Isometric Stretching is the sixty-sixth chapter of the manga Dumbbell Nan-Kilo Moteru?.

Plot
Gina and Satomi head off to the cinemas to watch the new screening of "Kingan Asura"! During the screening, one of the characters explains about the benefits of isometric stretching. At the films end, the audience went wild while Satomi sat confused.

Exercise Learned
The focus of this chapter is the benefits of isometric stretching before and after exercise.

Trivia

 * The Lifts of the North Star (北斗の筋, Hokuto no Kin), a parody of , is mentioned again, being noted to have been the world's first muscle manga.
 * , and  make humorous cameo appearances as part of the cinematic screening (劇場版, Gekijō-ban) "Kingan Asura" (キンガンアシュテ, Kingan Ashura) that Gina and Satomi go to watch. The film parodies some of the elements featured in :
 * Tokita Ohma becomes "Tokinma Ohmuscle" (, Kinma).
 * Yamashita Kazuo becomes "Kyazuo" (キャズヲ, Kyazuwo).
 * Sekibayashi Jun becomes "Mukibayashi" (ムキ, Mukibayashi).
 * The becomes the "Niku Style" (肉流, Niku-ryū; lit. Meat Style).
 * The become the "Kingan Battle" (筋肉バトル, kin'niku batoru; lit. Muscle Battle).
 * In this chapter's 4koma, Satomi re-visits the "Muscle" genre section of a manga store where she discovers almost a dozen muscle parodies of other manga series.