Gilbert Martinez, known by his pen name Gilbert III (always pronouced Gilbert Three, the Three may have been a misinterpretation of a stylized M), was an American cartoonist born in 1947 and active through the late 20th century. He was best known for his cartoons in Muscular Development magazine, where he brought humor and satire to the world of bodybuilding. His work often poked fun at gym culture, steroid use, and the extreme personalities in the sport, becoming a familiar and appreciated part of the magazine for many years. This page presents a selection of his cartoons, highlighting his unique style and perspective on the bodybuilding community.

• CLOSE GRIP PULL UP
• PRONE ROWING MOTION
• PULL UP TO BEHIND NECK
• DECLINE LATERAL RAISE
• PAGEANT OF MR. AMERICAS
• CABLE DELTOID RAISE
• FULL LEG RAISE ON ABDOMINAL BOARD
• THE LEVER BAR
• ALTERNANATE TRICEPS EXTENSION
• THE "TWO STEP" DELTOID DEVELOPER
• THE "LAYBACK" SQUAT
• PULLOVER ACROSS BENCH WITH DUMBELLS
• BARBELL TRICEPS EXTENSION
• SUPINE PULLDOWN ON LAT MACHINE
• THE ONE-LEGGED LUNGE
• ISOMETRIC CALF EXERCISE
• BICEPS CIRCLES WITH BARBELL
• DELTOID DEVELOPER
• HANGING CURL
• SUPINE TRCEPS PRESS
• THE PECTORAL PUNCH
• ROCKING INTO WRESTLER'S BRIDGE
• DECLICE PECTORAL SHAPER
• HIGH LEG RAISE TO SIDE
• SHOULDER SHRUG WITH CABLES
• TRICEPS DEVELOPER
• GOOD MORNING EXERCISE
• TRICEPS DEVELOPER
• FORWARD RAISE WITH BARBELL
• THE SUPER LEG RAISE
• SUPREME SEPARATION IN THE MID-SECTION
• TRICEPS EXTENSION WITH PARTNER
• FORE AND AFT PRESS
• LATERAL RAISE WITH PARTNER
• CURL WITH BACK AGAINST WALL
• NECK EXERCISE WITH PARTNER
• LEG EXTENSION ON BENCH WITH IRON BOOTS
• COMPLETE TRICEPS EXTENSION ON LAT MACHINE
• DONKEY RAISE
• ISOMETRIC CALF DEVELOPER
• BICEPS AND DELTOID CONTOURING
• STRAIGHT ARM PULLOVER ON LAT MACHINE
• FOR A SUPER MID-SECTION
• REVERSE CURLS WITH CABLES
• WIDE GRIP BENCH PRESS
• REGULAR CURL WITH E-Z-KURL BAR
• ONE-LEGGED CALF RAISE
• RIB CAGE RAISER
• BENCH PRESS WITH DUMBELLS
• PRESS BEHIND NECK
• INCLINE DUMBELL PRESS
• PARADE OF MR UNIVERSES
• OVERHEAD PULLDOWN WITH CABLES
• DUCK SQUAT
• SWIMMING EXERCISE
• FULL LEG RAISE
• LEG THRUST WITH IRON BOOTS
• PRONE ROWING MOTION
• FOREARM PUMPER
• SUPINE TRICEPS EXTENSION
• DELTOID CROSSOVER
• THE SWINGBELL CURL
• LEG CURL ON INCLINE BOARD
• REVERSE PUSHUPS FOR TERRIFIC TRICEPS
• MR AMERICA CORONATION
• KICK OUT FOR THIGHS
• LUNGE FOR REDUCTING BUTTOCKS
• DUMPBELL TRICEPS EXTENSION
• BICEPS BUILDER
• THE 45 DEGREE PRESSOUT
• THE CHEST RAISER
• FORWARD RAISE WITH DUMBELLS HELD VERTICALLY
• SEATED LEG RAISE ON BENCH
• THE OVERLOAD POWER BENCH PRESS
• INCLINE FLYING EXERCISE
• DECLINE FLYING EXERCISE
• HEAD RAISE ON BENCH
• LATERAL RAISE AGAINST INCLINE BOARD
• TRICEPS EXTENSION ON ADJUSTO-CLINE BENCH
• THE PARALLEL SQUAT TO CHAIR
• ROMAN CHAIR TWISTING SITUP
• CHINNING WITH HANDS TOGETHER
• TRICEPS BUILDUP ON LEG PRESS MACHINE
• ZOTTMAN CURL
• SEATED LATERAL RAISE
• PUSH-UPS WITH HANDS TOGETHER
• ROMAN CHAIR SIT-UP WITH BARBELL
• STRETCH AND REIST LATERAL RAISE WITH CABLES
• BENT ARM PULLOVER WITH DUMBELLS
• SUPINE LATERAL CROSS-OVER
• BARBELL ONE ARM LEVERAGE CURL
• PRONE PULL-UP ON DOORWAY GYM BAR
• FIHC MR WORLD PHYSIQUE CHAMPIONS
• WRIST AND FOREARM BUILDER
• TOE RAISE AGAINST BARBELL PLATE
• TRICEPS PUSHDOWN WITH CABLES
• BARBELL PRESS ON INCLINE BOARD
• SQUAT HOLDING BARBELL IN FRONT
• LEG EXTENSION WITH CABLES
• ONE ARM CURL - ELBOW FIXED
• SWINGBACK WITH IRON BOOT
• "FRENCH PRESS" WITH BARBELL
• SWINGBELL CURL ON CURLING STAND
• TRICEPS EXTENSION WITH DUMBELL
• ALTERNATE DUMBELLS PULLOVER
• FORARM DEVELOPER
• LEG PULL-UP TO CHESXT
• ONE ARM RAISE ON SIDE
• PECTORAL SQUEEZE
• FOREARM PULLOVER
• CONTINUOUS TENSION LEG RAISE
• ONE ARM ROWING MOTION
• THE SIDES -- OBLIQUE MUSCLES
• THE TRICEPS -- ARM EXTENSORS
• THE BICEPS -- ARM FLEXORS
• THE UPPER BACK - BROADNESS
• THE CALVES -- SPRINGS OF LEGS
• THE LEGS -- ENDURANCE PROPS
• THE NECK -- VITALITY INDICATOR
• THE DELTOIDS - SHOULDER CAPS
• FOREARMS & HANDS -- GRIPPING FORCE
• THE CHEST -- LUNGS AND MUSCLES
• THE LOWER BACK -- POWER ZONE
• THE ABDOMEN - VITAL AREA
• LATERAL DUMBELL CIRCLES
• HOFFMAN FROG-KICK ON CHAIRS
• ROTATING SIT-UPS
• IRON BOOT ROTATION
• TRICEPS EXTENSION
• CABLE CURL
• SPEEDY CHEST BUILDER
• BEND-OVER SINGLE CURL
• TUMMY TAKE-OFF
• WIDE GRIP CHINS WITH WEIGHT
• SUPINE LEGS SCISSORS
• SEATED ALTERNATE DUMBELLS PRESS
• SIDE TO SIDE BEND WITH DUMBELL
• ALTERNATE CURL ON INCLINE BENCH
• HANDSTAND PRESS-UPS ON BOXES
• TRICEPS EXTENSION MOVEMENT
• HOW TO SUCCEED IN BODYBUILDING
• ONE LEGGED IRON BOOT RAISE
• TOE TOUCH SIT-UP
• STRAIGHT ARM PULLOVER
• 
• COMPLETE LEG RAISE
• ALTERNATE DUMBELL PULLOVER
• REVERSE CURL ON CURLING STAND
• TRICEPS EXTENSION WITH DUMBELL
• LATERAL RAISE WHILE PRONE ON INCLINE BENCH
• HEEL RAISE WITH BARBELL ACROSS KNEES
• THE SUPER TEN - PART 1
• THE SUPER TEN - PART 2
• THE SUPER TEN - PART 3
• MR AMERICAS
• SIDE BEND WITH ONE DUMBELL
• CABLE PULL-UP FOR SHOULDERS AND TRAPEZIUS
• SPEEDY PECTORAL BUILDER
• TRICEPS EXTENSIONS WITH CABLES
• SUPER TRICEPS EXTENSION
• SIDE-TO-SIDE TWIST WITH BARBELL
• BICEPS PEAKER ON CURLING STAND
• 1969 MR AMERICA
• THE SEATED CURL
• TRICEPS EXTENSION WITH CABLES
• SWINGBELL PULLOVER ON BENCH
• NEXT MONTH
• REVERSE CURL WITH CABLES
• SUPER CHEST EXPANDER
• SWINGBELL FRONT RAISE
• FOR HERCULEAN PROPORTIONS
• HALF SIT-UP AND HALF LEG-RAISE
• ROWING MOTION WHILE BENT FORWARD
• ONE ARM DUMBELL RAISE WHILE LYING ON SIDE
• NEXT MONTH
• DECLINE LATERAL RAISE
• ALTERNATE CURL WITH DUMBELLS
• STRAIGHT ARM CABLE STRETCH
• STIFF ARM CABLE RAISE
• THE TRICEPS KICK-BACK
• SWINGBELL CURL
• ALTERNATE CURL WITH DUMBELLS WHILE SEATED
• THE ONE ARM UPRIGHT ROWING MOTION
• UNDERHAND ROLL-UP ON WRIST ROLLER
• PRONE FORWARD RAISE
• FORWARD RAISE WITH DUMBELLS
• LATERAL RAISE WITH DUMBELLS
• ROWING MOTION WITH CLOSE GRIP
• TWISTING SIT-UP
• JUMP WITH PARBELL ON SHOULDERS
• BENT ARM PULLOVER ON BENCH
• RAISE ON TOES WITH HEAVY BARBELL
• REVERSE PUSH-UP ABOVE FLOOR
• LEG RAISE and LEG RAISE AND SPREAD
• PULL KNEES TO CHEST
• TOUCHING TOES OVER AND BEHIND HEAD
• SIT-UP
• SWINGING SWINGBELL WHILE BENDING FORWARD
• DUMBELLS PULL-UP WHILE BENDING FORWARD
• FLOOR DIPS WITH WEIGHT ON BACK
• WIDE GRIP PRESS ON BENCH
• PRONE CURL ON INCLINE BOARD
• THE RIBCAGE ENLARGER
• 
• ONE ARM TRICEPS EXTENSION
• SUPINE LATERAL DUMBELLS SWING
• CLOSE GRIP CONCENTRATION CURL
• BENT ARMS LATERAL RAISE
• LEG CULR WITH BARBELL
• DIPS ON PARALLEL BARS
• BEEFING UP YOUR CHEST
• BEEFING UP YOUR CHEST
• BEEFING UP YOUR CHEST
• BENT ARMS LATERAL RAISE FOR SHOULDERS
• LUNGE FORWARD WITH BARBELL ON SHOULDERS
• DUMBBELLS CURL WHILE SEATED
• JUMPING WHILE HOLDING WEIGHTS
• GOOD MORNING EXERCISE
• ALTERNATE FORWARD RAISE
• DUMBELL CURL ON INCLINE BENCH
• RAISING DUMBELL BACKWARDS
• CALF RAISE ON CALF MACHINE
• CHINNING THE BAR WITH HANDS OPPOSED
• HALF SQUAT TO BENCH
• HANDS OVERHEAD SIT-UP ON ABDOMINAL BOARD
• ALTERNATE CURL WHILE SEATED
• LEG ROTATION WITH IRON BOOTS
• SIDE-TO-SIDE BEND WITH DUMBELLS
• FRONT SQUAT WITH BARBELL
• LEG PULL-UP TO CHEST WHILE SEATED
• PULLOVER ON BENCH
• SITUP
• CURLS
• UPRIGHT ROWS
• SQUATS
• BENCH PRESS
• MILITARY PRESS, DEADLIFTS, BENT-OVER ROWS
• LATERAL RAISE ON INCLINE BENCH
• HALF LEVER LEG RAISE FROM HIGH BAR
• ONE-ARM PULLUP WITH HEAVY DUMBELL
• BENT ARMS PULL OVER ON BENCH
• SQUAT FOR SKIING EXERCISE
• ONE ARM CURL WITH CABLES
• LEG RAISE ON BENCH WITH IRON BOOTS
• CURL WITH BARBELL WHILE PRONE ON BENCH
• TWO DUMBELLS PRESS WHILE SEATED
• SWINGBELL CURL WHILE BENT OVER
• CIRCULAR LEG ROTATION ON BENCH
• SQUATS THEN PULLOVERS FOR CHEST
• HEAD ROTATION WITH HEADSTRAP
• ALTERNATE BENDOVER WITH DUMBELLS
• PULLOVER WITH DUMBELL
• DIPS BETWEEN CHAIRS
• BENT LEGS SIT-UP
• ALTERNATE CURL ON INCLINE BENCH
• HALF SQUAT TO BENCH
• LEG KICK FOR FREE STYLE SWIMMERS
• ALTERNATE PULLOVERS ON INCLINE BOARD
• OVER-THE-HEAD BARBELL PRESS
• LATERAL RAISE ON DECLINE BOARD
• LEG RAISE WITH IRON BOOT
• ONE ARM SIDE PRESS
• SEATED CURL WITH BARBELL
• ALTERNATE LEG SCISSORS WITH IRON BOOTS
• CABLE CROSSOVER
• PULL-UP ON FLAT BENCH
• THE SEATED TWIST
• CLOSE GRIP PULL-UP WITH WEIGHTS FASTENED TO WAIST
• LATERAL RAISES FOR THE SHOULDERS
• SQUATE WITH ONE LEG OUT TO SIDE
• LEG RAISE ON INCLINE BOARD
• FROG KICKS WHILE HANGING ON BAR
• TWISTED SIT-UP
• SIDE BENDING WITH BARBELL
• ALTERNATE DUMBELLS PRESS ON BENCH
• HEAD RAISE WITH HEADSTRAP WHILE KNEELING ON BENCH
• SIDE RAISE WHILE LYING ON INCLINE BOARD
• THE COMPLETE TOE TOUCH
• FORWARD RAISE WITH SWINGBELL
• CALF-RAISE WITH WEIGHT
• PULL-UP TO CHINNING BAR FOR LATISSIMUS
• LEG RAISE LYING ON TABLE
• LATERAL RAISE WITH ARMS CROSSING OVER CHEST
• THE BEND OVER TO SIDE
• THE ALTERNATE SUPINE TRICEPS EXTENSION
• THE WRIST CURL
• BLASTING THE BLUBBER FOR THE BALMY BEACHES THIS SUMMER
• STRETCH CABLES AND STRETCH YOUR SHOULDERS WIDER
• FOR THE ARM BENDER
• A CHESTY CHEST IN A HURRY
• ALL A RANCHER KNOWS ABOUT CALVES
• THE SECRET WEAPON
• RETRO LATERAL RAISE
• RETRO TWO ARMS CURL
• RETRO PULLOVER ON STOOL
• 
• 
• 
• 
• 
• 
• FORWARD LEG RAISE WITH IRON BOOT
• PULLDOWN WITH CABLES
• ROTATING CURL WITH BARBELL
• POWER FOR WRIST WRESTLERS
• PULLUPS WITH CABLES
• 
• FULL DEPTH PUSHUPS
• 
• THE FOLDING LEG RAISE
• JUMPING WITH WEIGHT BELT
• THE STRETCHING MOVEMENT
• CONTRACTION CURL FOR BIGGER BICEPS
• THIGH AND TOE RAISE
• SUPER CHEST ENLARGER
• LATERAL RAISE ON BENCH WITH DUMBELLS
• WRIST ROLLER ROLL-UP
• SIDE-TO-SIDE BEND WITH DUMBELL
• 
• 
• 
• LYING LAT-PULL TO CHEST
• ISOLATING TRICEPS ACTION WITH CHEST EXPANDERS
• TWIST
• HANGING KNEE RAISE
• LEG RAISE ON ABDOMINAL BOARD
• 
• 
• ULTRA STRETCH OF THE RIB-BOX
• LEVERAGE MOVEMENT FOR STRONGER WRISTS AND BIGGER FOREARMS
• SQUATING TO A SITTING POSITION
• DIPPING BETWEEN BOXES OR CHAIRS
• PUMPING THE LATS
• WORKING THE CALVES
• THE FULL CIRCLE WITH CHEST EXPANDERS
• FLATTENING THE "LOWER GUT"
• FLATTENING THE "LOWER GUT"
• SUPER FROG KICKS - FOR LOWER BACK AND ABDOMEN
• LEG CURLS ON AN INCLINE BOARD
• CALBE TRAINING DURING VACATION
• A TRICEPS WORKOUT WITHOUT WEIGHTS
• A TRICEPS WORKOUT WITHOUT WEIGHTS
• ONE-ARM REVERSE CURL
• SHARPENING THE TRICEPS & REAR DELTOIDS
• DEVELOPING THE DELTOID MASS
• DEVELOPING THE DELTOID MASS
• SINGLE ARM CURL ON PREACHER'S BENCH
• PRESS FROM BEHIND THE NECK
• TRICEPS EXTENSION MOVEMENT WITH DUMBBELL
• BENCH PRESSS
• BENTOVER ROWING
• DUMBBELL CURLS
• THE BENDOVER OR "GOOD MORNING" EXERCISE FOR THE LOWER BACK
• THE BENDOVER OR "GOOD MORNING" EXERCISE FOR THE LOWER BACK
• ROLL-UP FOR WRISTS AND FOREARMS
• REVERSE TRICEPS EXTENSION ACTION
• TEST YOUR CURLING POWER
• TEST YOUR CURLING POWER
• THIGH BURNS
• FOR THE POSTERIOR DELTOID, TRICEPS AND UPPER BACK
• A SUPER TRICEPS CONTRACTOR
• LIMBERING UP THE MUSCLES THRU STRETCHING
• WORKING THE QUADRICEPS OF THE THIGHS
• SUBSTITUTING THE LEG PRESS FOR SQUATS
• LYING LAT-PULL
• CURLS FOR LEG BICEPS
• CURLS FOR LEG BICEPS
• BULKING UP YOUR PEX
• CHINNING -- FOR LATS AND ARMS
• MELON-SIZE DELTOIDS
• MELON-SIZE DELTOIDS
• ALTERNATE DUMBELL PULLOVER
• DELTOID POWER
• SUPER HEALTH THRU ABDOMINAL FITNESS
• PRESS BEHIND THE NECK
• ROWING MOVEMENT FOR THE BACK
• TRICEPS EXTENSION
• REVERSE CURL
• RIB-BOX EXPANSION
• CHEST SHAPER
• PREVENTING BACKACHE
• DELTOID STRENGTHENER
• LEG PULL-UP
• CONVERTING YOUR BENCH (to preacher bench)
• STRETCHING
• ROUNDING OUT THE POSTERIOR DELTOIDS
• CHEST AND LAT WORK
• CHEST STRETCH--WITH CABLES
• DOUBLE ARM EXTENSION
• UNIQUE PUSH-UP
• WORKING THE BICEPS
• CALF ROUTINE WITH POWER RACK
• THE FROG KICK OR LEG RAISE WHILE HANGING
• JUMPING SQUAT