Temporal Trends in the Standing Broad Jump Performance of United States Children and Adolescents.

: To estimate temporal trends in broad jump performance for United States youth, a marker of muscular fitness and health. : Electronic databases, topical systematic reviews, and personal libraries were systematically searched for studies reporting descriptive standing broad jump data for apparently healthy United States youth (age 10-17 years). Temporal trends at the sex-age level were estimated using sample-weighted regression models associating the year of testing to mean jump performance, with national trends standardized to the year 1985 using a post-stratified population-weighting procedure.