PMID: 6539693Jan 1, 1984Paper

Effects of external loading on short term power output in children and young male adults

European Journal of Applied Physiology and Occupational Physiology
C T Davies, K Young

Abstract

The effects of external loading, in the form of small weights distributed evenly over the limbs and torso, on physical performance and power output have been studied during vertical jumping in 10 children and four young adults and the results compared with maximal cycling. The results show under control (unloaded) conditions the absolute peak power output (W) achieved by children and adults was 572 W (45%) and 765 W (25%) respectively higher in cycling than jumping. The addition of weights during jumping served only to increase this difference. External loading produced a linear decrease of W in both groups of subjects. The reduction in W was entirely due to a decrease of take-off velocity (VT). The relationship between VT and added weights (delta wt) could be described by the equations: VT (ms-1) = 1.91 - 0.042 delta wt (kg); r = -0.96 (children); VT (ms-1) = 2.49 - 0.021 delta wt (kg); r = -0.99 (adults). Thus, contrary to the recent work of Caiozzo and Kyle (1980) which involved stair-climbing, body size and speed of movement in children and young adults would appear to be optimally matched for the production of lifting work during vertical jumping. External loading reduces the generation of power output immediately prior to...Continue Reading

References

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Jan 1, 1980·European Journal of Applied Physiology and Occupational Physiology·K KitagawaM Miyashita
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Nov 1, 1981·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·A J SargeantA Young
Dec 1, 1949·The Journal of Physiology·D R WILKIE

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Citations

Jan 1, 1985·European Journal of Applied Physiology and Occupational Physiology·C R Kyle, V J Caiozzo
Jan 1, 1991·European Journal of Applied Physiology and Occupational Physiology·G FalgairetteJ Coudert
Oct 14, 2005·European Journal of Applied Physiology·P-Y BoussugeE Van Praagh
Aug 7, 2012·European Journal of Applied Physiology·Nemanja PazinSlobodan Jaric
Aug 15, 2013·European Journal of Applied Physiology·Slobodan Jaric, Goran Markovic
May 27, 2005·International Journal of Obesity : Journal of the International Association for the Study of Obesity·C L LafortunaA Sartorio
Jan 1, 1985·Journal of Sports Sciences·Y NakamuraM Miyashita
Jan 31, 2009·Research Quarterly for Exercise and Sport·Eric DoréEmmanuel Van Praagh
Aug 28, 2002·Sports Medicine·Emmanuel Van Praagh, Eric Doré
Apr 4, 2002·Journal of Endocrinological Investigation·C L LafortunaA Sartorio
Sep 16, 2008·Journal of Biomechanics·Pierre SamozinoAlain Belli
Jun 2, 2004·International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity·H H DaoJ Navarro
Oct 22, 2008·Sports Medicine·Philippe ConnesOlivier Hue
Oct 3, 2007·Medicine and Science in Sports and Exercise·Goran Markovic, Slobodan Jaric
Apr 14, 2010·Journal of Strength and Conditioning Research·James L NuzzoN Travis Triplett
Mar 13, 2014·Journal of Applied Biomechanics·John McDanielJames C Martin
Oct 15, 2009·Journal of Strength and Conditioning Research·José Castro-PiñeroJonatan R Ruiz
Mar 12, 2009·Medicine and Science in Sports and Exercise·Slobodan Jaric, Goran Markovic
Jun 26, 2013·Journal of Strength and Conditioning Research·James L Nuzzo, Jeffrey M McBride
Feb 4, 2016·Sports Medicine·Marco Antonio Soriano-RodríguezPedro J Marín
Apr 27, 2018·Frontiers in Physiology·Erika Zemková, Dušan Hamar
May 20, 2003·Scandinavian Journal of Medicine & Science in Sports·O GalyO Hue
Nov 3, 2009·The Journal of Experimental Biology·Thomas KorffAnthony J Blazevich

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