Our April issue features a bodybuilder who is more than just a bodybuilder—he’s also a skydiver, bungee jumper, bull rider and anything else that gets his adrenaline spiking. Kyle Clarke is his name, and he uses his muscles for more than just flexing. Plus, we have the first excerpt from the best-selling e-book The Ultimate Mass Workout, a shoulder-shocking program from up-and-coming bodybuilder Armon Abidi, a complete kettlebell routine from Clark Bartram and answers about the science of bodybuilding from two top researchers. Find the awesome April IRON MAN on newsstands the first week of March.

FEATURES

54 TRAIN, EAT, GROW 138
It’s time to get big and lean and turn your body into a fat-burning machine with NA chaser sets.

84 ADRENALINE JUNKIE
Lonnie Teper interviews fitness phenom Kyle Clarke, a guy who’s always looking for the next rush.

98 FAST-BLAST DELT-MASS WORKOUT
Cory Crow checks out Armon Adibi’s quick-moving, keep-improving shoulder molder.

106 IM’s ICONIC IMAGES
More legendary photos that define bodybuilding’s history, as well as its future.

114 THE SCIENCE OF BODYBUILDING
Steve Holman talks with Gabriel Wilson and Jacob Wilson, Ph.D., top researchers on building muscle and burning fat. Muscle-geek speak explained here.

120 "THE FIGHTER" WORKOUT
From the Bodybuilding.com archive, Brian Bullman outlines Mark Wahlberg’s program for on-screen in-the-ring muscle, endurance and power.

126 FOR WHOM THE KETTLEBELL TOLLS
Clark Bartram has a change-of-pace kettlebell program to help you ring in new gains with an old-school muscle-building tool.

136 THE ULTIMATE MASS WORKOUT
Excerpt 1 from this ground-breaking e-book, a.k.a. the official X-Rep manual, by Steve Holman and Jonathan Lawson.

142 THE STARK CENTER FOR PHYSICAL CULTURE AND SPORTS
Ken O’Neill explores the evolution of a museum and research library dedicated to all things muscle and strength—Terry and Jan Todd, curators.

156 A BODYBUILDER IS BORN: GENERATIONS
Sage advice from Ron Harris: Before you drop everything and move to the mecca of muscle, remember that bodybuilding will always be there for you, at any age.

194 FEMME PHYSIQUE
Steve Wennerstrom, IFBB women’s historian, profiles Klaudia Kinska, a one-of-a-kind fitness star.

202 ONLY THE STRONG SHALL SURVIVE
Bill Starr lays out the proper exercise sequence for gaining serious strength. Order in the gym is key.

DEPARTMENTS

28 TRAIN TO GAIN
Eric Broser’s FD/FS training, one workout a week and inspiration vs. motivation.

42 EAT TO GROW
Surprising effects of garlic, BCAAs and a balancing act of popular diets—like Atkins.

64 NATURALLY HUGE
John Hansen outlines the basics of torching your tri’s, your key to sleeve-stretching mass.

70 SHREDDED MUSCLE
Dave Goodin’s beach-body blueprint.

72 CRITICAL MASS
Steve Holman explains 4-bys for size and packing on mass with shorter workouts.

76 SMART TRAINING
Coach Charles Poliquin talks building biceps on a budget and bench strength with isometrics.

164 BODYBUILDING PHARMACOLOGY
Will vitamin V boost T? Jerry Brainum analyzes the less-obvious effects of Viagra.

176 NEWS & VIEWS
Lonnie Teper’s insider look at the upcoming Arnold Classic—plus, would-be swami picks and Rising Stars.

188 PUMP & CIRCUMSTANCE
Ruth Silverman previews the women’s events at the Arnold: Can Iris—or Adela—be beaten?

212 MIND/BODY CONNECTION
Dragging my bones to the gym and a review of Body by Design.

224 READERS WRITE
Classy swimsuit shoot, diet do’s and don’ts and easier training, big gaining.