At the Texas High School Powerlifting Championships in April 1990, Terry Todd, a professor of kinesiology at the University of Texas at Austin and former weightlifter, spotted Henry and persuaded him to go to Austin after he graduated to train in the Olympic style of weightlifting. In July 1990 at the USPF Senior National Powerlifting Championships, 19-year-old Henry came second only to the legendary six-time World Powerlifting Champion Kirk Karwoski. While powerlifting relies primarily on brute strength and power, which Henry obviously possessed, Olympic weightlifting is considered more sophisticated, involving more agility, timing, flexibility and technique. There have been few lifters in history who have been able to be successful in both lifting disciplines. Mastering the technique of weightlifting usually takes many years of practice, but Henry broke four national junior records in weightlifting after only eight months of training. In April 1991, he won the United States National Junior Championships; 20 days later he placed fourth at the U.S. Senior National Championships, and finished sixth at the Junior World Weightlifting Championships in Germany two months later. Only few weeks afterwards, he became 1991's International Junior Champion in Powerlifiting as well. In Henry's first year in competitive weightlifting, he broke all three junior (20 and under) American records 12 times, and became the United States' top Superheavyweight, surpassing Mario Martinez.
** surpassed by Robert Wilkerson (SHW class) of the United States with a 975 lb (442 kg) raw squat with knee wraps on June 7, 2010, at the Southern Powerlifting Federation (SPF) Nationals (open competition, not drug-tested) as the all-time raw world record in the SHW class
*** surpassed by Sergiy Karnaukhov (308-pound-class) of Ukraine] with a 970 lb (440 kg) raw squat with knee wraps on November 4, 2007 as the all-time raw \"regardless of weight class\" world record
**** surpassed by Andy Bolton (SHW class) of the United Kingdom with a 953 lb (432 kg) raw deadlift on May 23, 2010 (open competition, not drug-tested) as the all-time raw world record in the SHW class (+regardless of weight class)
***** surpassed by Konstantin Konstantinovs (308-pound-class) of Latvia] with a 939 lb (426 kg) raw deadlift without a belt on July 4, 2009 (drug-tested competition) as the all-time raw \"regardless of weight class\" world record
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