The paper is very hard to follow and it is just difficult to understand and this is clarity may be due to a language barrier [We had 2 Aussies who corrected the English for me]. Also the importance of it as it relates to practicality is also not clear and other tests are also available for such field testing, why do we need to add another. Therefore the context of the finding and its practicality remains unsubstantiated.
and it is just difficult to understand
Journal of Strength and conditioning research (11/10/2010)
Paper published later here: http://www.ncbi.nlm.nih.gov/pubmed/21911863