A century ago, a time of 10.6 seconds in the mens 100-meter dash would have won an Olympic gold medal, and the very idea that a sprinter could run the 100 in under 10 seconds was seen as absurd. But at the 1968 Olympics, American Jim Hines eradicated that notion when he ran the 100 in 9.95 seconds. The world record has since been lowered to 9.58, a mark set by Jamaicas Usain Bolt in 2009.As athletes continue to evolve and sports science develops, the time it takes humans to travel 100 meters is reducing, which leaves us pondering the age-old question: How low can it go?Australian physiologist and sports scientist Jeremy Richmond says there are a number of new techniques sprinters are employing in an attempt to run even faster. In fact, he is confident the 100-meter record can be lowered below 9.3 seconds, possibly by the 2020 Tokyo Games.One of the techniques Richmond cites is called plyometrics, also known as jump training.We now see a lot of athletes, especially the Jamaicans, doing hurdle drills to strengthen the hip flexion, Richmond said. These hip flexion drills enhance the soleus muscle (lower calf), and studies show a strong correlation between the size of the soleus muscle and sprinting performance.A strong soleus muscle can play a significant role in acceleration over the first 10 meters, when the sprinter is at his slowest.Another factor is that we could see more tall sprinters like Bolt, who is 6-foot-5, in the wake of his meteoric career. Richmond says Bolts physical stature makes him the ideal sprinter prototype.Research suggests that if a sprinter is 10 percent taller, then he would have a 10 percent shorter ground contact time, which would allow him to run 10 percent faster, Richmond said. However, the limiting factor with a taller sprinter is the energy it takes to bring the legs forward because of the longer limbs.Despite Richmonds confidence that?we will see faster times, limits exist.Without a doubt [the world record] can still get lower, he said. If we can get the tallest sprinters to strengthen their hip flexors and the shorter sprinters to contract their muscles faster, then we should be able to see times around 9.27 seconds.Its certainly not possible for Rio, but maybe by Tokyo. Having said that, I doubt wed really get past 9.2, because the loading involved at those speeds would force us to have super heavy bones, but then of course the weight becomes a negative factor. Nick Van Exel Lakers Jersey . Jordan Lynch, the all-purpose Heisman Trophy finalist from Northern Illinois, failed to make it into that exclusive club. 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Victor Moses converted a 20th-minute penalty after an Ethiopian handball, and Victor Obinna made certain of Nigerias place in Brazil with his powerful free kick in the 82nd at UJ Esuene Stadium. TAMPA, Fla. -- Sidney Crosby had another eventful night.The Penguins star returned after passing concussion protocol following a first-period hit to get his 20th goal, and that stoked Pittsburghs rally for its latest victory.Crosby and Evgeni Malkin both scored their second goals on third-period power plays, helping the Penguins come back to beat the Tampa Bay Lightning 4-3 on Saturday.Crosby was shaken up by Luke Witkowskis check with eight minutes to go in the first but returned for the start of the second period.It was just kind of a stinger in my neck, Crosby said. I got jammed.It was the first meeting between the teams since the Stanley Cup champion Penguins beat Tampa Bay in a seven-game Eastern Conference final last season.Pittsburgh, which won its fifth straight game, got three assists each from Phil Kessel and Kris Letang. The Penguins are 6-6-1 when trailing after two periods.After going 1 for 30 on the power play over the last nine games, Pittsburgh converted 3 of 5 chances Saturday.Im not going to sit here and say it looking pretty early and we knew it was coming, Crosby said. But (later) we had some really good looks and we put them in.Tampa Bays Jonathan Drouin had the first of his two goals shortly after getting cut by a high-stick. Valtteri Filppula also scored for the Lightning, who are 1-6-1 over their last eight games.Teams go through these situations, Tampa Bay coach Jon Cooper said. Theres a lot of hockey left to play.Matt Murray made 20 saves for the Penguins, and Andrei Vasilevskiy stopped 33 shots for Tampa Bay.After Crosby pulled the Penguins even at 3 with his 20th goal at 5:08 of the third, Malkins right--circle shot with 11:24 left gave Pittsburgh a 4-3 lead.ddddddddddddMalkin has 111 power-play goals, which moved him past Jaromir Jagr (110) and Kevin Stevens (110) into second on Pittsburghs career list. Mario Lemieux tops the list with 236.Crosby opened the scoring 12:03 into the game, diving toward a loose put and putting it past Vasilevskiy.The first goal he got, for me, personifies his compete level, his willingness to go to the battle area, Penguins coach Mike Sullivan said.Crosby has a goal in three straight games and a seven-game point streak (six goals, 12 points).Tampa Bay got a 4-minute power play late in the first after Drouin was cut below the left eye by a high-stick by Malkin. Drouin returned soon after and tied it at 1 from the left circle with 2:03 left.Drouin put the Lightning up 3-1 midway through the second by lifting a backhander past Murray.I think we were in it physically and emotionally, Drouin said. But you cant give that team too many chances.Murray made a terrific glove save along the goal line on Filppula in the third.I think I was pretty lucky, Murray said.Game notes Pittsburgh has outscored opponents 39-17 in the third period. ... Malkin has a 13-game point streak against Tampa Bay (15 goals, 30 points). ... Lightning RW Ryan Callahan missed his sixth straight game. He has played in just 15 games since offseason hip surgery.UP NEXTPenguins: Play Arizona on Monday night in the first of three straight games at home.Lightning: Start a three-game trip Wednesday night at Calgary. ' ' '