Learn the rear hook: elbow at 90°, rotation from foot and hip, lead-hand guard. With data on speed, mistakes and the contradictory headguard evidence.
The rear hook is a semicircular punch of the rear hand in which the arm is not extended but stays bent at about 90°. The world federation's handbook describes it like this: rotate the body slightly to the rear side, shift weight onto the lead leg, keep the lead hand at the chin, swing the punching arm to the target with the elbow bent at about 90°, knuckles pointing at the opponent, then retract by the shortest path [1]. It is thrown mainly from medium distance, meaning a range from which you do not have to step forward [1].
How hard is it really? The hook can be explained quickly and improved for a long time. The Swiss material names the hip rotation as the core: the body rotates around the longitudinal axis, the arm is tilted by 90° during the rotation so that fist, elbow and shoulder are at the same height [2]. Realistically you need several weeks of pad work before the hook runs without winding up and without losing balance (rule of thumb).
On effect: measurements on competition-standard boxers showed that rear-hand hooks are faster at impact than the jab and cross but also need more time to arrive [3]. That makes it strong and risky at once: it hits hard, but the opponent has a window to see it coming. In Olympic semi-finals and finals, winners landed more rear-hand hooks than losers in rounds two and three [6]. And elite boxers produced more force and speed on hooks than younger, well-trained boxers, who in turn used the shoulder more [4]. The power should come from the body, not the arm.
Boxing stance. Rotate foot and hip to the rear side, the elbow stays bent at about 90°, the lead hand stays at the chin [1]. The fist stays at head height. It is only about the movement. Milestone: ten repetitions, the elbow angle holds, the lead hand does not drop.
The Swiss material requires: fist, elbow and shoulder at the same height, the elbow and shoulder joints at 90° each [2]. The second hand lies at the cheekbone [2]. Knuckles point at the opponent and never up or down [1]. The eyes look over the arm, not under it [1]. Milestone: you hold the end position for three seconds and check it in the mirror.
Your partner holds the pad to the side at head height. You throw the hook, pull the hand back by the shortest path and stand in the stance again [1]. The handbook teaches standing first, then with a step forward, then with backward and side steps [1]. Milestone: ten hooks without winding up, all hit the pad in the target area.
First a small step forward, then backward and side steps, each with a hook. The handbook names this order explicitly [1]. The hook stays short. Milestone: you throw the hook with a step and stand balanced in the stance afterwards.
In practice the rear hook often follows a lead-hand action (practice). The handbook lists a sequence with a hook as an example: lead straight, rear straight, lead hook [1]. Build the rear hook in after the jab; the lead hand returns to the chin afterwards. Milestone: jab, rear hook, return to the stance as one clean sequence.
Hands first. A measurement on 29 elite boxers found a wrist flexion of 5.5° at impact for the lead hook and 9.3° for the jab [7]; the study has no data on the rear hook. Both movements are small, but the hand remains the most common injury site in boxing: in a British national squad it was 302 hand injuries per 1000 hours of competition [8]. Hand wraps and gloves are no luxury.
Then the head. The hook is a punch to the head, and the evidence on headguards is, honestly, contradictory. A meta-analysis found more stoppages in amateur boxers wearing headguards than in those without [9]. At the world federation, after headguards were removed, stoppages due to blows to the head fell while cuts rose markedly [10]. Four federation-approved headguards missed a threshold of 150 g in a lab test (150 g means 150 times gravitational acceleration acting on the head) [11]. That means: a headguard probably protects the skin; that it prevents concussion is not proven.
For you it follows: the headguard is not a free pass. The handbook still advises headguard and 16-ounce gloves for sparring [1], but what matters is the number of hits you take. Practise the hook on pads and bag, contact only under a coach's supervision with a suitable partner. Warning signs after a hit such as nausea, confusion or dizziness: stop immediately and get medical help [1].
This guide explains and motivates; it does not replace supervised training.
Train rotational power separately from boxing. In an eight-week study on 31 trained boxers in three groups, punch impact improved across all punch types, but the group with rotation-oriented strength work gained most for the hooks [5]. Rotation exercises with a cable or a dumbbell (wood chops) are a simple start (practice). It is an approach, not a guarantee; the study is small.
The cross is a straight punch: the arm extends on a direct path. The rear hook is an arc: the elbow stays bent at about 90° and the arm swings sideways [1]. The hook lands faster but takes longer to arrive [3].
The hook is a medium-distance punch, meaning without stepping forward [1]. At very short distance, when the gloves almost touch, hooks are thrown short [1]. At long range you get further with a straight punch.
Because it protects the chin while the rear hand swings outside. The handbook requires the opposite hand to stay at the chin for every hook [1]. If you drop it, you give the opponent an open line to your chin.
No, it counts as a punch for the advancing: it demands hip rotation, balance and a guard that holds during the swing. The handbook teaches it only after the lead-hand punches [1]. When the jab, cross and lead hook are secure, you are ready.
In front of a mirror and on a standing bag: check the elbow angle, keep the lead hand at the chin, return to the stance after the punch. Distance feel and timing need a moving target, so pads or a partner. Start standing, as the federation teaches [1].
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