English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This study aims to define the running performance parameters in young track athletes using simple field tests. Twenty seven young athletes, divided in two age groups (Children, CH, 12-13 years old and Young Adolescents, YA, 14-15 years old), performed a 300 and 1000m time trial (t300m and t1000m, respectively), as well as aerobic and anaerobic field tests. For both groups, t1000m performance correlates were primarily aerobic (r=-0.866 -0.899) and secondarily anaerobic (r=-0.519 -0.846) and anthropometric (r=0.698 – 0.770), while t300m performance correlates were primarily anaerobic (r=-0.553 -0.898) and secondarily aerobic (r=-0.638 -0.656) and anthropometric (r=-0.638). t1000m was predicted from aerobic, anaerobic and anthropometric factors (CH: adjusted R2=0.948, SEE=6.86 sec, YA: adjusted R2=0.982, SEE=5.83 sec). For the t300m the power output and anthropometric parameters were most important (CH: adjusted R2=0.406, SEE=3.97 sec, YA: adjusted R2=0.871, SEE=2.13 sec). Simple field tests can estimate running performance with sufficient accuracy in young track athletes.

Determinants of 300 and 1000 Meters Running Performance in Young Track and Field Athletes