Nicole Wilkins (born February 5, 1984) is an American IFBB professional figure and fitness competitor, fitness model, and fitness trainer.
 She is the first 4-time winner of the IFBB Figure Olympia Competition and 3-time winner of the IFBB Figure International held during the Annual Arnold Classic.
 She is currently the only woman to have won the Figure Olympia four times.
Vanda Maria Hădărean (born May 3, 1976 in Cluj-Napoca, Romania) is a retired Romanian artistic gymnast who competed in international events between 1990 and 1993.
 She is an Olympic silver medalist and a world bronze medalist with the team and a European all around bronze medalist.
 She is also a successful fitness model and she has won various world class fitness competitions.
 She is a four-time Ms. Fitness World (2008, 2009, 2010 and 2011) and a four-time Ms. Fitness Canada (2006–2009).
 She also coaches, trains, provides consultation services to gymnasts and fitness models under the brand name “Inspired by Vanda”.
 She is also known for her breakout photo series in the Romanian Playboy magazine.
Kasbani Bin Kasmon Singapore-born fitness personality (born 14 April 1989), better known by his nickname, Que Andrea Kasbani, is a fitness model and a cover model who has been featured in various magazines such as the Manja Magazine (Singapore), Mangga (Malaysia), Maskulin Magazine (Malaysia), REPS Magazine (Indonesia), Cosmopolitan Magazine (Singapore), SUTRA Magazine (Singapore) and Ifitness Magazine (Singapore) as well as on the fitness sutra website.
 Apart from modeling, Kasbani is also a freelance actor and has been featured on show such as BlogTv on ChannelNewsAsia and on Suria.
Roger Snipes (born February 5th, 1979) is a British bodybuilder, Fitness model, fitness competitor and fitness trainer.
 He is winner of Mr. UK, Mr. Britannia in 2010 and Fame UK in 2011.
 He followed it up with a win at Musclemania 2011.
 He won the WBFF European Championship in 2013 and took second place in the WBFF World Championship 2015.
 He has been a Shredz, PhD athlete and WBFF Pro Muscle Model.
Work Out in the Zone (previously known as Work Out) is an American reality television series on Bravo, which premiered on July 19, 2006.
 The show is centered on fitness trainers and models located in the many cities of California.
 The first three seasons featured many of the trainers who work for fitness trainer Jackie Warner, and some other aspects of the gym and its clients as well as Warner's other fitness ventures, and private life.
 The third season of "Work Out" ended on June 10, 2008, and was subsequently canceled.
 A fourth season is currently held in production, with eight different trainers cast for the show.
 Warner, will not return for the fourth season, after the network was not pleased with her interaction with the other trainers.
 The fourth season, which revamped the show's concept, mainly featured top fitness model and former army ranger Greg Plitt, who was the only cast member to return from the previous season.
Ahmo Kathleen Hight (born September 18, 1973) is an American fitness model, swimsuit model and actress.
 She first rose to prominence in winning the Ms. Fitness USA (Western States Division) tournament and Ms. Fit Body Bay Area in 1994, after which she began modeling for fitness and muscle magazines.
 In 1997, she launched an acting career (sometimes using the name Amy Hite) and appeared in several made-for-video and made-for cable films, mostly of softcore porn genre.
 She also appeared in videos produced by "Playboy" magazine.
 She appeared opposite Anna Nicole Smith in the faux documentary "Anna Nicole Smith Exposed", as well as episodes of the television series "Pacific Blue" and "Hotel Exotica".
Tammie Leady (born 11 August, Port Arthur, Texas) is a certified personal trainer and a fitness and figure competitor based in Atlanta, Georgia.
 She is also a fitness model who has appeared in a number of magazines, including "Flex", "American Curves" and "Muscle & Fitness".
 As a personal trainer, she writes in various columns about improving ones physical health and well-being.
Ingrid Romero (born July 10, 1985) is an international fitness model, fitness competitor, and fitness coach.
 Training & Fitness Magazine called her "one of the most recognized faces in the fitness industry," and "one of the most accomplished female fitness stars ever."
Kimberly Lyn "Kim" Lyons (born May 5, 1973) is an American athlete, personal trainer, nutritionist, and fitness model who has appeared several times on the covers of many health and fitness magazines and has also starred on the United States version of the competitive reality television show, "The Biggest Loser".
 She originally replaced fellow trainer Jillian Michaels in season 3, but competed against her in season 4.
 She did not return for season 5, and has not made an appearance since.
 Subsequently, she appeared at the 2008 Miss America pageant as a panelist, and wrote a book entitled "".
George Gregory Plitt, Jr. (November 3, 1977 – January 17, 2015) was an American fitness model, actor and former Army Ranger.
 He starred in the Bravo television series "Work Out."
 He died at age 37 when he was struck by a train locomotive while filming a video.

Question: The fitness model who appeared on the fourth season of "Work Out" died at which age?
Answer: 37