46 research outputs found
Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches?
Dynamic, mating-induced gene expression changes in female head and brain tissues of Drosophila melanogaster
Development of foraging skills in two orangutan populations: needing to learn or needing to grow?
Movement and physiological demands of international and regional men's touch Rugby matches.
This study compared the internal and external match demands imposed on international and regional standard male touch rugby players. The study adopted a cohort design with independent groups. Twelve international players (mean age, 27.8 ± 6.2 years; body mass, 72.8 ± 3.7 kg; stature, 174.5 ± 5.4 cm) and 9 regional players (mean age, 25.5 ± 5.5 years; body mass 74.2 ± 7 kg; stature 174.1 ± 7 cm) were analyzed during 9 competitive matches from the 2013 season. Movement demands were measured using a 5-Hz global positioning system, alongside heart rate (HR) and session rating of perceived exertion (s-RPE) to quantify internal load. Total distance covered by international players was lower than regional players (2265.8 ± 562.3 cf. 2970 ± 558.9 m; p †0.05). However, international players had greater relative distance (137.1 ± 13.6 cf. 126.2 ± 17.2 m·minâ1) due to shorter playing times per match (p †0.05). Absolute high-speed running (>14 km·hâ1) was not different between groups (p > 0.05), but relative high-speed running (39.3 ± 12.0 cf. 26.0 ± 13.6 m·minâ1) was higher for international players. Regional players performed more absolute low-speed activity (â€14 km·hâ1) than international players (p †0.05), whereas relative low-speed activity was not different between groups (p > 0.05). Very high-speed running (>20 km·hâ1) distance, bout number and frequency, peak, and average speed were all greater in international players (p †0.05). Higher average HR, summated HR, and s-RPE (p †0.05) indicated higher internal loads during matches for regional players. These data indicate that performance in men's touch rugby is characterized by more relative high-speed running and better repeated sprint capacities in higher standard players