Table 2. Inclusion criteria for articles eligible for the review.

Criteria	Inclusion
1	Studies with a sample of adolescent team sport athletes (between 12 and 20 years old)
2	The design was either cross-sectional with different age groups or a longitudinal design lasting at least one year investigating speed, change of direction ability, strength, power, and/or endurance capabilities
3	Comparison between different age groups (excluding groups comprised by different ages)
4	Peer-reviewed original article
5	Full text in English available for screening
6	Results from physical testing were available