Mark Kramer
Physical Activity, Sport, and Recreation (PhASRec) Unit, North West University, Potchefstroom, South Africa
[ 1 ] - Functional Speed Reserve as a Proxy for the Anaerobic Speed Reserve Using the Critical Speed Concept
Background: Although maximal sprint speed (MSS) and the anaerobic speed reserve (ASR) provides valuable information about the speed profile of athletes, these parameters fall short of providing important information about sub-maximal metabolic thresholds. The only field test that can offer an estimate of a sub-maximal metabolic threshold is the 3-minute all-out test for running (3MT) which deli...
[ 2 ] - The Mediating Effects of Caffeine Ingestion and Post-Activation Performance Enhancement on Reactive Dive Times in Goalkeepers
Background. The reactive abilities of goalkeepers are crucial and may directly impact match results. Therefore, research on factors that may enhance goalkeeper performances during diving tasks (DT) and how these factors are mediated would provide valuable information for coaches and goalkeepers. Objectives. The purpose of this investigation was to: (i) assess the impact of caffeine consumption...
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