Sled Pull Muscles Worked

Definition

The sled pull is the counterpart to the sled push in HYROX^® - a pulling-dominant station that taxes an entirely different set of muscle groups. The muscles worked during a sled pull include the biceps, forearms (grip), latissimus dorsi, rear deltoids, rhomboids, core, and hamstrings. Mastering the muscle recruitment pattern of the hand-over-hand rope pull is critical for fast station times.

How It Works

In HYROX^®, the sled pull is performed using a hand-over-hand rope technique while the athlete is anchored in a standing or slightly seated position. The sled sits 12.5 meters away, and the athlete pulls it toward them by repeatedly grasping and pulling the rope.

The movement phases are:

1. Grip and Reach Phase - The athlete extends one arm forward to grasp the rope. The forearm flexors engage to secure grip, while the shoulder protracts to reach maximum rope length.
2. Pull Phase - The arm flexes at the elbow (biceps) while the shoulder extends and retracts (lats and rear delts). The upper back muscles - rhomboids and middle trapezius - retract the scapula to complete each pull stroke.
3. Bracing Phase - Throughout the pull, the core maintains an anti-extension brace against the forward pull of the sled, and the hamstrings and glutes anchor the lower body to the ground to prevent the athlete from being pulled forward.

The hand-over-hand technique means both arms alternate rapidly, creating a high-repetition upper-body demand that is unique among HYROX^® stations.

Primary Muscles

• Biceps Brachii - The primary elbow flexor during each rope pull. The biceps work concentrically to pull the rope toward the body on every stroke. Over 50+ individual pulls, bicep endurance becomes a limiting factor for many athletes.
• Forearms and Grip Musculature (Flexor Digitorum, Brachioradialis) - Grip strength is often the first thing to fail during the sled pull. The forearm flexors must maintain a secure clamp on the rope under heavy load while fatigued from preceding stations.
• Latissimus Dorsi - The lats provide the primary shoulder extension force, pulling the arm from an overhead reach down toward the hip. They are the largest muscle involved in the movement and generate the most pulling power per stroke.
• Rear Deltoids and Rhomboids - These upper back muscles retract the shoulder blade and extend the shoulder, completing the pull and ensuring force transfers efficiently through the upper body chain.

Secondary and Stabilizer Muscles

• Core (Rectus Abdominis, Obliques, Erector Spinae) - Provides the anti-extension stability that prevents the athlete from being pulled forward by the sled. A weak core forces the athlete to use smaller arm muscles to compensate, accelerating fatigue.
• Hamstrings and Glutes - Anchor the lower body in the bracing position. The hamstrings work isometrically to maintain a slight knee bend, while the glutes extend the hips to keep the torso upright.
• Trapezius (Upper) - Elevates and stabilizes the shoulder girdle during the overhead reach portion of each stroke.

Practical Application

Effective sled pull training targets the specific weaknesses most athletes face:

• Grip endurance is the most common limiter. Train with dead hangs, towel pull-ups, and farmer's carries to build forearm stamina.
• Lat strength drives pulling power. Prioritize lat pulldowns, cable rows, and dumbbell rows with controlled tempos.
• Bicep endurance matters more than bicep max strength. Use higher-rep (15-20) curl variations to train the fatigue resistance needed for 50+ consecutive pulls.
• Core anti-extension work like plank holds, ab wheel rollouts, and Pallof presses builds the bracing capacity to maintain position throughout the pull.
• Practice the hand-over-hand technique itself - coordination and rhythm reduce wasted energy and improve pull efficiency.

HYROX^® Context

The sled pull is station 2 in HYROX^®, immediately following the sled push. This back-to-back pairing means athletes arrive at the sled pull with already-fatigued legs and an elevated heart rate. The shift from a push-dominant to a pull-dominant movement pattern provides some muscular relief for the quads, but grip and bicep fatigue can accumulate quickly.

Athletes who have undertrained their upper-body pulling muscles often experience grip failure mid-station, forcing them to pause repeatedly to recover. This can add 30-60 seconds to station splits. Building robust grip endurance and lat strength through targeted training is one of the highest-return investments for overall HYROX^® race time.

FAQ

What is the most common muscle to fatigue first during the sled pull? Grip and forearm muscles fatigue first for the majority of athletes. The hand-over-hand rope technique demands sustained grip contractions, and forearm endurance is often the weakest link in the pulling chain.

Is the sled pull more of an arm or back exercise? It is primarily a back exercise. The lats and rear delts generate the most force per pull stroke, with the biceps and forearms acting as secondary movers. However, because the smaller forearm muscles fatigue faster, they often feel like the limiting factor.

How heavy is the HYROX^® sled pull? Open men pull 103 kg and Open women pull 78 kg. The weight demands significant pulling force, which is why building lat and grip strength is essential for competitive performance.

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