Henry Cavill built his Man of Steel physique at Gym Jones in Salt Lake City under trainer Mark Twight, gaining 18 pounds of muscle in nine months. He arrived at production at 193 pounds and between 3 and 4 percent body fat, up from a starting point of 175 pounds.
What separates Cavill's transformation from most celebrity preparations is that the program was genuinely hard. Gym Jones, which also produced the physiques in the 2007 film 300, does not build bodies that merely look good on camera. Twight trains the mind as much as the body.
This article covers the weekly training split Cavill followed, the specific protocols Twight programmed for the Superman build, and the conditioning methods Dave Rienzi added during The Witcher preparation years later.
The Mark Twight and Gym Jones Philosophy
"Mark's training isn't just about the body. He trains the mind as much as the muscle. That warrior mindset is what made the difference." - Henry Cavill
Mark Twight founded Gym Jones after a career as one of the world's elite alpinists. He is not interested in what muscles look like in isolation. He is interested in what a complete body produces under sustained demand.
For Cavill's Superman preparation, Twight programmed alternating weeks of bodybuilding-focused lifting and CrossFit-style conditioning. Bodybuilding weeks built mass through progressive overload. CrossFit weeks stripped fat and developed cardiovascular capacity that made the mass look athletic.
Weekly Training Split
"I work out every day. If I'm going to be playing Superman, I can't afford not to." - Henry Cavill
| Day | Primary Focus | Secondary Work |
|---|---|---|
| Monday | Chest and Back | Fasted cardio in morning (20 min at 125-135 BPM) |
| Tuesday | Legs | Fasted cardio in morning (20 min at 125-135 BPM) |
| Wednesday | CrossFit Conditioning | Rowing intervals, kettlebell circuits, sled work |
| Thursday | Rest or Active Recovery | Mobility and light movement |
| Friday | Shoulders and Arms | Fasted cardio in morning (20 min at 125-135 BPM) |
| Saturday | Functional Conditioning | Sandbag carries, rope work, bodyweight circuits |
| Sunday | Rest | Full rest and recovery |
Fasted Morning Cardio
"I work out every day. If I'm going to be playing Superman, I can't afford not to." - Henry Cavill
Cavill performs fasted cardio every training morning before consuming any calories. He runs or jogs for 20 minutes at a heart rate of 125 to 135 beats per minute.
At this intensity, the body draws primarily from fat stores rather than muscle glycogen. This allows fat loss to occur without compromising the muscle tissue being built in the afternoon lifting sessions.
Monday: Chest and Back
"The results you achieve will always be in direct proportion to the effort you apply." - Henry Cavill
Monday's chest and back session pairs pressing and pulling movements in alternating sequence. Incline barbell press is the primary chest movement, and Twight prefers it over flat bench for the upper chest development that photographs well without creating a bottom-heavy chest.
Weighted chin-ups anchor the pulling work as a strength benchmark throughout the program. They require Cavill to lift his full body mass through a full range of motion every session.
- Incline barbell press: 4 sets x 8-10 reps
- Cable crossover: 4 sets x 10-12 reps
- Weighted chin-ups: 4 sets x 8-10 reps
- Seated cable row: 4 sets x 10-12 reps
- Dumbbell pullover: 3 sets x 12 reps
- Face pulls: 3 sets x 15 reps
Tuesday: Legs
"We have all the necessary ingredients within us to become whatever we wish to become." - Henry Cavill
Tuesday's leg session is built around the deadlift and front squat. Twight specifies front squats over back squats for their demand on thoracic extension and the quad sweep they develop from a front-facing camera angle.
One benchmark Twight programmed specifically for the Superman preparation is 100 front squats at body weight, completed in as few sets as required. It appears periodically as a conditioning and mental toughness marker.
- Deadlift: 5 sets x 5 reps
- Front squat: 5 sets x 6-8 reps
- Front lunges: 4 sets x 8 reps per leg
- Leg curl: 4 sets x 10 reps
- Calf raise: 5 sets x 12 reps
- Body weight front squat benchmark: 100 reps in minimum sets (periodic test)
Wednesday: CrossFit Conditioning
"I work out every day. If I'm going to be playing Superman, I can't afford not to." - Henry Cavill
Wednesday replaces conventional lifting with a conditioning session using the CrossFit methodology Twight alternates with bodybuilding weeks. Rowing intervals, kettlebell circuits, sled pushes, and sandbag carries appear in rotating combinations.
The 250-meter rowing sprint with heavy resistance is a Gym Jones staple that Cavill has specifically referenced. It taxes both the pulling muscles and the cardiovascular system simultaneously.
- Rowing sprint: 6 x 250 meters at maximum effort with heavy resistance (2 min rest)
- Kettlebell swings: 5 sets x 20 reps
- Sled push: 5 rounds x 20 meters at heavy load
- Sandbag carry: 4 rounds x 30 meters
- Box jumps: 4 sets x 8 reps
Friday: Shoulders and Arms
"The results you achieve will always be in direct proportion to the effort you apply." - Henry Cavill
Friday's shoulder and arm session uses high volume across moderate loads to build the shoulder width and arm thickness the Superman suit demands. Cavill's shoulders received particular attention because the costume's visual impact depends on his frame filling the upper portion without padding.
Twight programs seated dumbbell press as the primary overhead movement for its greater range of motion and independent loading per side compared to a barbell.
- Seated dumbbell press: 5 sets x 8-10 reps
- Side lateral raise: 5 sets x 10-12 reps
- Front lateral raise: 5 sets x 10-12 reps
- Barbell curl: 6 sets x 10-12 reps
- Hammer curl: 4 sets x 12 reps
- Skull crusher: 4 sets x 10 reps
- Tricep rope press-down: 4 sets x 15 reps
The Witcher Preparation with Dave Rienzi
"I work out every day. If I'm going to be playing Superman, I can't afford not to." - Henry Cavill
For The Witcher, Cavill worked with Dave Rienzi, who also coaches Dwayne Johnson. The programming shifted to reflect the role's demands: explosive sword-fighting sequences that require muscular endurance in the shoulders and rotational core power.
Rienzi programmed two daily sessions during the preparation window: fasted cardio in the morning using the same 125-to-135 BPM protocol, and resistance training later in the day. The physique Cavill built for Geralt is leaner and more athletic-looking than his Superman build.
The Tension and Pump Method
"We have all the necessary ingredients within us to become whatever we wish to become. We have that strength, we have that resilience." - Henry Cavill
One specific programming technique Twight applied throughout the Man of Steel preparation is pairing tension work and pump work within the same session. Tension work uses heavy loads, long rest periods, and low rep counts to drive neuromuscular adaptation. Pump work immediately follows using high reps, short rest, and moderate loads to drive metabolic stress.
The combination produces size and strength simultaneously rather than requiring separate phases. This was essential given the nine-month window Cavill had before filming began.
Explore Similar Routines
- Chris Hemsworth's Workout Routine. Another superhero actor who builds and maintains a functional physique year-round through athletic conditioning and compound lifting, sharing Cavill's preference for training that performs as well as it looks.
- Hugh Jackman's Workout Routine. Jackman's Wolverine preparations used phased periodization across multiple film productions, maintaining a demanding physique standard over a comparable career arc.
- Tom Holland's Workout Routine. Holland's Spider-Man preparation combined gymnastics, swimming, and weight training to build a physique optimized for athletic credibility, sharing Cavill's dual focus on strength and functional movement.
- The Rock's Workout Routine. Dwayne Johnson's six-day high-volume program produces comparable superhero-level mass through a bodybuilding methodology, contrasting with Cavill's alternating bodybuilding and CrossFit approach.
Cavill's program runs on iron and conditioning tools rather than supplements. Bodybuilding weeks are built on heavy barbell and dumbbell work; CrossFit weeks strip fat with the rower, kettlebell, sled, sandbag and box that Twight rotates to keep the mass genuinely athletic.