Four By Four Running

Free

1.0for iPhone, iPad

Anders Schau Knatten

Developer

Jun 23, 2017

Update Date

Health & Fitness

Category

Age Rating

Apps in this category do not contain restricted content.

Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Four By Four Running Screenshots

iPad

iPhone

About Four By Four Running

Four by four is the scientifically proven[1], efficient way to get in shape quickly. It works both for athletes and couch potatoes.

You alternate between running quickly for four minutes and slowly for three minutes. You do four repetitions, for a total of 28 minutes.

[1] Aerobic high-intensity intervals improve VO2max more than moderate training, Helgerud et. al., 2007