After just four months of training, Misha Whitehead set a world record by deadlifting 270 pounds.

LAHAINA — Bolstered by the steady guidance of their dad, two Lahaina teenagers — Christian and sister Misha Whitehead, both 15 — have set world records in weightlifting.

Mike Whitehead proudly reported that his two children accomplished the astounding feats at the seventh annual WABDL (World Association of Bench and Deadlifters) 2011 Powerlifting Meet held last month at the Honolulu Convention Center on Oahu.

Misha, who has been practicing for only four months, pulled a world record 270 pounds competing in the age 14-15, 114-pound weight class in the deadlift event. The existing world record was 264.5 pounds.

A sophomore at Lahainaluna High School, Misha is a member of Maui Interscholastic League champion Lady Luna basketball team.

Brother Chris, meanwhile, a junior at Lahainaluna and player on the MIL champion Luna football team, pulled a world record 451-pound deadlift in the 14-15 age group, 148-pound weight class to shatter the existing standard of 425.5 pounds.

Christian Whitehead pulled a world record 451-pound deadlift, shattering the existing mark of 425.5 pounds.

The effort was more than three times Chris’ body weight, which is considered outstanding in world-class in weight lifting competition.

He has been training with his dad for almost two years and began competing at the age of 13, when he set a state record in the deadlift.

The high standard of excellence in weightlifting seems to run in the family, as Mike’s wife, Siu Whitehead, who trains with Gilbert Shibao and Craig DeSoto, holds the state record for the bench press in the 114-pound weight division.

“Along with Misha and Chris, we have two cousins that train with us and a couple of others as well,” said Mike last week.

“We train about one-and-a-half to two hours once a week at the Valley Isle Gym, and try to work out in three-month cycles with lighter weights and more reps and then to lower reps with more weight. It’s a good way to stay fit and a good way for the kids to find a way to strength maintenance in their sports endeavors.”