Speed is one those things every athlete wants more of. It may be described as quickness or having a faster first step but ultimately it comes to having more horsepower. But how we go about developing speed is a good question. Ask five different coaches what they do for speed training and you may get five different answers. Recently there was an article published in the Journal of Strength & Conditioning Research by Hancock et al which looked at how post activation potentiation (or PAP) affects swim performance. This research team took 30 collegiate swimmers and had them do a standard warm-up followed by a 6 minute rest. After the rest the swimmers performed a 100 m time trial with splits at the 50 m mark plus blood lactacte was sampled. One grip did 4x10 m maximal swims on the minute against the resistance of a power rack before taking the 6 minute break. These four swims lasted an average of seven seconds and the resistance for each swimmer was set based on their mass and 100 m swim time so as to equivalent for everyone. What they found was that performing the four maximal sprints resulted in a swim times that were 0.54 seconds faster than the group that didn't perform them. Think 0.54 s doesn't matter in the 100 m freestyle in swimming? It would if you were #11 and you were the only to perform this kind of warm-up. In theory it could shave 0.54 seconds off his time and take him from 48.67 to 48.13 and the gold medal.RankHeatLaneNameNationalityTimeNotes165Nathan Adrian United States48.19Q261Gideon Louw South Africa48.29Q382Sebastiaan Verschuren Netherlands48.37Q484James Magnussen Australia48.38Q585Brent Hayden Canada48.51Q667Brett Fraser Cayman Islands48.54Q678Pieter Timmers Belgium48.54Q, NR863Nikita Lobintsev Russia48.60Q987Cullen Jones United States48.61Q1077Konrad Czerniak Poland48.63Q1164César Cielo Brazil48.67Q1274James Roberts Australia48.93QI point this out to show that a half second...