Rendimento de biomassa da cana-do-reino (Arundo donax L.).

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EFFECTS OF EXTERNAL LOADING ON POWER OUTPUT DURING VERTICAL JUMP: A PILOT STUDY WITH WATER POLO GOAL KEEPERS.

The purpose of this study was to describe preliminary results of the effects of external loading on power output during vertical jumps performed on a force platform by three elite water polo goal keepers (1 female and 2 male). Peak power output was calculated from time-force curves during vertical jumps with and without external additional loads corresponding to 0%, 5%, 10% and 15 % of their body weight. The jumps were performed from a squat position, without lower limb counter-movement or arm swings. The peak instantaneous power was reached at 0% additional load (body weight) by two of the athletes, and for the third, the peak instantaneous power was reached at 5% additional load. This study suggests that for water polo goal keepers, the load that generates maximum power output in dry land exercises is body weight, without any additional load

Efeito de doses e de fontes de nitrogênio na composição mineral de capim-marandu.

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Extração de nutrientes e recuperação aparente do nitrogênio em capim-marandu.

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Efeito de doses de nitrogênio na composição mineral do capim-coastcross.

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