DOI:
10.1055/s-00000119
B&G Bewegungstherapie und Gesundheitssport
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References
Kaster T, Dooley F, Fitzgerald J, Walch T, Annandale M, Ferrar K, Lang J, Smith J, and Tomkinson G.
Temporal trends in the sit-ups performance of 9,939,289 children and adolescents between 1964 and 2017.
Journal of Sport Sciences
38: 1913-1923, 2020;
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