Seven-time Mr. Olympia champion Phil Heath continues to train without sleeves even at 46 years old, inspiring fellow lifters with powerful sessions designed to develop enormous arm size. The legendary bodybuilder has generously outlined his approach to building what he calls freakish arms, relying o
Seven-time Mr. Olympia champion Phil Heath continues to train without sleeves even at 46 years old, inspiring fellow lifters with powerful sessions designed to develop enormous arm size. The legendary bodybuilder has generously outlined his approach to building what he calls freakish arms, relying on just three highly effective movements that deliver impressive results when performed with dedication and precision.
Although the routine features a limited number of exercises, Heath emphasizes that there are absolutely no shortcuts on the path to serious arm development. The former champion, who secured the Mr. Olympia title consecutively from 2011 through 2017, stresses the importance of intensity, proper technique, and consistent effort throughout every session.
Phil Heath’s Freakish Arms Workout
- Seated Alternating Dumbbell Curl: 4 Sets of 8 to 12 Reps
- Seated Concentration Curl: 4 Sets of 8 to 12 Reps
The Finisher
- Barbell Curl 21s: 7 Sets
Workout Breakdown
Phil Heath achieved peak arm measurements of approximately 22 inches through rigorous training focused on both intensity and muscle hypertrophy while preserving strict form at all times. Because he lifted heavy weights during his repetitions, he recommended incorporating adequate recovery periods between sets. For the initial two movements, rest for 90 seconds after completing each set. For the final finisher exercise, allow two full minutes of rest so that maximum effort can be applied to every set.
The session begins with seated alternating dumbbell curls performed while seated. This exercise effectively targets the biceps brachii, the brachialis muscle located beneath it, and the brachioradialis in the forearm, contributing to a balanced three-dimensional arm appearance. Heath executed these curls with controlled motion to maximize muscle engagement throughout the full range.
Next, concentration curls are performed in a seated position. These movements excel at isolating the biceps muscle more directly than standard curls, which helps develop the coveted peak at the top of the biceps. Due to the increased isolation, it is often necessary to reduce the weight compared to the previous exercise in order to maintain proper form and avoid using momentum.
The workout concludes with a demanding seven-set protocol using barbell curl 21s. This technique divides each repetition into three distinct phases of seven reps each. Heath uses an EZ bar to complete seven partial reps from the bottom position, seven partial reps from the top position, and finally seven full-range repetitions. He considers seven an optimal number and therefore performs seven complete sets to promote substantial muscle growth.
Individuals new to 21s should practice their technique in front of a mirror to ensure half-reps are neither overextended nor insufficient. Like conventional curls, this exercise engages the biceps brachii, brachialis, and brachioradialis, but the segmented structure forces longer time under tension, which enhances muscle stimulation and promotes greater fatigue in the often challenging forearm muscles.
Those who are not yet at an advanced level can adjust the total number of sets downward and gradually increase volume as strength and confidence improve. The primary goal remains reaching muscular failure within the eight to twelve repetition range during the main exercises. Regardless of the chosen set volume, it is essential to prevent momentum from assisting during the 21s portion and to select a lighter weight if needed to preserve form and minimize injury risk.
Heath concluded by advising lifters to train hard, train intelligently, and enjoy the process, noting that arm day should bring a sense of satisfaction and motivation to every workout.