The Norwegian 4x4 Hiit workout is a favourite among athletes and actress Jessica Biel – here’s why it’s so beneficial

2026

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Authors: Paul Hough
DOI: 10.64628/ab.n7jwg5yah
Cited by: 0
References: 19

Fields of Study & Subjects

Sports Performance and Training Cardiovascular and exercise physiology Physical Activity and Health

Publication details

Publication date
12 January 2026