The bodily chain of the throw — from the ground to the boule
🧍 THE KINETIC CHAIN OF THE THROW — FROM FOUNDATION TO EXECUTION 🦶 FEET Foundation of the whole gesture. The orientation of the feet defines the base direction axis. A misoriented foot deviates the whole structure above. FOUNDATION 🦵 KNEES Transmit the stability or instability from the feet to the pelvis. Locked knees = rigid transmission of any imbalance. Slightly bent = cushioning. TRANSMISSION ⚙️ HIPS The axis of the hips determines the orientation of the pelvis, which orients the spine, which orients the throwing shoulder. One hip higher than the other tilts the pendulum axis. ORIENTATION 🧍 TORSO The tilt of the torso (forward/backward, left/right) changes the height of the throwing shoulder and therefore the starting height of the pendulum — with direct impact on the vertical trajectory. TILT 💪 SHOULDERS The axis of the shoulders is the main directing axis of the pendulum. The throwing shoulder must be in exact alignment with the target for the pendulum to sweep in the right plane. AXIAL 👁️ HEAD The position of the head influences the perception of the target and the signal the brain sends to the arm to calibrate the throw. Turned head = skewed perception of the axis. PERCEPTION 🎙️ PAQUITA ON THE BODY AND THE TRAJECTORY "I see a lot of players looking for their error in the hand or the wrist, for years, without ever finding it there. Because the problem isn't the hand — it's the shoulders that are crooked, or the feet pointing in the wrong direction. The boule does what the body asks of it. If the body says 'go left', the boule goes left — no matter how you position your wrist. Align the body first, always." — PaquitaThe 6 bodily parameters that influence the trajectory
🦶 1. L'orientation des pieds — la boussole du lancer PIEDS DIRECTION COMMENT LES PIEDS DÉFINISSENT LA DIRECTION L'orientation du pied d'appui est le premier déterminant de la direction du lancer — parce que le pied oriente le genou, qui oriente la hanche, qui oriente l'épaule, qui définit l'axe du pendule. A supporting foot pointing toward the jack automatically places the whole body in alignment with the target. A supporting foot deviated 5 degrees outward rotates the entire body structure 5 degrees off axis — producing a deviation of 40 to 60 cm over 8 meters, without the arm gesture having changed. → How to check: before entering the circle, explicitly look at the supporting foot and make sure it points directly at the target. This 2-second visual check is one of the most worthwhile corrections in pétanque. COMMON DRIFTS AND THEIR EFFECTS Foot turned outward (duck-footed): the boule deviates to the opposite side — slightly to the right for a right-hander with the right foot open. Foot turned inward: inward deviation. Supporting foot poorly positioned: crée une instabilité latérale pendant le lancer qui se traduit par une variation de direction à chaque boule. La dérive des pieds s'installe progressivement sous la fatigue ou la distraction — sans que le joueur ne la perçoive, puisqu'il ne regarde généralement pas ses pieds pendant le lancer. → Effet typique : boules qui dévient toujours du même côté, sur plusieurs mènes consécutives, sans que le geste n'ait consciemment changé. Signal diagnostic d'un problème de pied. → Règle fondamentale : si les boules dévient toujours dans la même direction depuis plusieurs mènes, vérifier les pieds en premier — avant de chercher dans le bras, le poignet ou la prise. C'est là que se trouve l'erreur dans 60 à 70 % des cas de déviation constante. ⚙️ 2. L'axe des hanches — l'orientation invisible de la chaîne corporelle HANCHES AXE CORPOREL COMMENT LES HANCHES INFLUENCENT LA TRAJECTOIRE Le bassin est le pivot central de la chaîne cinétique — il reçoit l'orientation des pieds et la transmet à la colonne et aux épaules. A pelvis slightly rotated relative to the target axis changes the orientation of the whole structure above it. This rotation of the pelvis can come from a postural habit (one hip naturally more forward than the other), a muscular asymmetry, or a compensation for another poorly placed parameter. It is almost invisible from the outside but produces a constant deviation of the trajectory. → How to check: in the throwing position, place both hands on the hips and feel whether they are aligned perpendicular to the target. If one comes forward more than the other, the pelvis is rotated — correct it by pulling the forward hip back until aligned. THE ROTATION OF THE PELVIS DURING THE THROW Some players have a slight rotation of the pelvis during the throw itself — the pelvis turns forward at the end of the pendulum to "follow through" the boule. This rotation, if it is symmetrical and controlled, is neutral or slightly beneficial. Si elle est asymétrique (rotation plus forte d'un côté), elle dévie la trajectoire dans la direction de la rotation. La conscientisation de cette rotation pendant l'entraînement permet de l'identifier et de la contrôler. → À retenir : les hanches sont souvent le maillon "oublié" de la vérification posturale — on pense pieds, genoux, épaules, tête — rarement hanches. Pourtant, un axe de hanches mal aligné produit une déviation aussi systématique qu'un pied mal orienté. 💪 3. L'axe des épaules — le plan directeur du pendule ÉPAULES AXE PENDULE POURQUOI L'AXE DES ÉPAULES EST CRITIQUE L'épaule de lancer est le pivot du pendule — c'est depuis ce point que le bras balaie son arc. For the pendulum to sweep exactly along the target axis, the throwing shoulder must be in precise alignment with that target. If the shoulder is slightly outside or inside the alignment, the pendulum sweeps in a deviated plane — and the boule leaves in that deviated plane, regardless of the precision of the arm gesture itself. It's one of the most determining and least consciously worked parameters. → How to check: in the throwing position, check that the imaginary line passing through both shoulders is perpendicular to the target axis (not parallel). The throwing shoulder should be directly in the alignment of the target — neither too open, nor too closed. OPEN SHOULDER VS CLOSED SHOULDER Shoulder too open (throwing shoulder forward relative to the axis): the pendulum sweeps slightly inward — boule that deviates toward the center, or a shot that "pulls toward yourself". Shoulder too closed (épaule de lancer reculée) : le pendule balaie vers l'extérieur — boule qui dévie vers l'extérieur. Ces déviations sont subtiles sur les courtes distances mais s'amplifient sur les longues distances, où 1 degré d'écart de l'épaule peut produire 20 à 30 cm de déviation. → Test vidéo : se filmer de face pendant un lancer. Observer si l'épaule de lancer est dans l'alignement exact de la cible ou légèrement décalée. Ce décalage, invisible au joueur depuis son propre angle de vue, est souvent la cause principale des déviations inexpliquées. 🧍 4. L'inclinaison du buste — l'effet sur la hauteur et la distance BUSTE HAUTEUR COMMENT LE BUSTE INFLUENCE LA TRAJECTOIRE L'inclinaison du buste modifie la hauteur de l'épaule de lancer par rapport au sol — et donc le plan vertical dans lequel le pendule balaie. A torso tilted forward lowers the shoulder, which lowers the release point and produces boules that leave lower and further (or that dig into the ground prematurely). A torso tilted backward raises the shoulder, producing boules that leave too high or too short. The verticality of the torso is the condition for a trajectory calibrated to the desired height. → How to check: feel that the weight is centered (neither on the front of the feet, nor on the heels). If the weight is on the front, the torso has tipped — straighten up until you feel the weight on the central part of the foot. THE LATERAL TILT OF THE TORSO In addition to the forward/backward tilt, the torso can tilt laterally — one shoulder higher than the other. This vertical asymmetry creates a tilt of the pendulum plane : le pendule balaie dans un plan légèrement penché, ce qui dévie la boule latéralement à l'impact avec le sol. Ce paramètre est particulièrement difficile à percevoir depuis l'intérieur — il se détecte plus facilement en vidéo ou avec un regard externe qui observe l'alignement horizontal des épaules. → Règle posturale : le buste doit être vertical dans les deux plans (avant/arrière et gauche/droite). Tout écart dans l'un ou l'autre plan modifie la trajectoire dans la dimension correspondante — vertical pour la hauteur/distance, latéral pour la direction. 🦵 5. La flexion des genoux — la stabilité dynamique du lancer GENOUX STABILITÉ POURQUOI LES GENOUX INFLUENCENT LA TRAJECTOIRE Les genoux légèrement fléchis jouent un rôle d'amortisseur dans la chaîne cinétique — ils absorbent les micro-déséquilibres et maintiennent le centre de gravité stable pendant le balancement du bras. Knees locked in extension directly transmit every oscillation of the weight to the arm — without absorption, without filtering. A slight disturbance of the weight (deep breath in, ground imbalance) produces a visible shift of the trajectory in a player with locked knees, but is cushioned in a player with slightly bent knees. → How to check: in the throwing position, look for a feeling of lightness in the knees — no tension, no locking. A micro-bend of 5 to 10 degrees is enough. If the thighs are slightly active, the knees are well bent. THE KNEES AND THE HEIGHT OF THE THROW The flexion of the knees slightly lowers the center of gravity and therefore the height of the throwing shoulder. A player who bends his knees more than usual throws from a slightly lower position — ce qui modifie la hauteur du point de lâcher et produit des boules légèrement différentes dans leur trajectoire verticale. Certains joueurs ajustent délibérément leur flexion de genoux pour jouer des boules plus basses ou plus hautes — une technique avancée qui demande une bonne conscience corporelle. → Test simple : lancer 5 boules avec des genoux très légèrement fléchis, puis 5 boules avec des genoux presque verrouillés. Observer la différence de régularité. La série à genoux fléchis devrait être plus régulière — parce que les micro-déséquilibres sont absorbés et ne se transmettent pas au lancer. 👁️ 6. La position de la tête — l'axe de perception qui guide le bras TÊTE REGARD COMMENT LA TÊTE INFLUENCE LA TRAJECTOIRE La position de la tête influence la trajectoire par deux mécanismes. Physical mechanism: a head tilted laterally slightly alters the axis of the shoulder and therefore the plane of the pendulum — the brain instinctively compensates for the horizontality of the vision by adjusting the position of the body, which can shift the alignment. Perceptual mechanism: a turned head (not in the direct axis of the target) skews the perception of direction — the brain sends a direction signal based on a slightly off-center vision, which produces an arm that follows this skewed perception. → How to check: make sure the head is straight (not tilted laterally) and on the target axis (facing the target, not turned). The gaze should fall directly on the target without lateral movement of the eyes — if the eyes have to move laterally to see the target, the head isn't on the right axis. THE HEAD THAT ANTICIPATES THE RESULT One of the most frequent head-position errors is anticipating the result — the head that starts moving toward the target (to "follow" the boule) before the boule is even released. This head movement during the throw physically shifts the shoulder and disrupts the pendulum axis in the last centimeters before the release — the most critical for precision. The discipline of keeping the head still until after the release is both a position parameter and a timing parameter. → Rule of the head: straight, still, on the axis of the target. These three conditions can be checked in 2 seconds. Straight = no lateral tilt. Still = no movement during the throw. On the axis = the gaze falls directly on the target without lateral movement of the eyes. 🧍 The body first, the arm second — alwaysThe most important rule of body placement comes down to one sentence: align the body to the target, then let the arm naturally follow that alignment. A perfectly executed arm from a misaligned body will give a deviated boule. An approximate arm from a perfectly aligned body will give a reasonably precise boule. The body is the foundation — the arm is the tool that relies on it.
The effect of each parameter on direction, distance and height
↔️ PARAMETERS THAT INFLUENCE DIRECTIONSupporting foot poorly oriented: it's the main directional determinant. Even a 3 to 5 degree offset produces a measurable lateral deviation at long distances. Watch it first on any constant deviation in one direction.
Hip axis rotated: rotates the whole chain above — produces a consistent lateral deviation, often confused with a grip or wrist problem.
Open or closed shoulder: directly defines the plane in which the pendulum sweeps. Open shoulder → inward deviation. Closed shoulder → outward deviation.
Turned head: skews the perception of direction and produces an incorrect direction signal sent to the arm.
→ If the boule constantly deviates to one side: check feet, hips, shoulder in that order before any other parameter. ↕️ PARAMETERS THAT INFLUENCE DISTANCETorso tilted forward: lowers the shoulder, creates a longer and lower trajectory — long boules or ones that dig prematurely depending on the chosen trajectory.
Torso tilted backward: raises the shoulder — short boules (less pendulum range available) or too high.
Center of gravity too far forward: forces a compensation in the throw to maintain balance — often a sudden acceleration of the arm that produces long and imprecise boules.
Locked knees: produces distance variability through direct transmission of each micro-imbalance — boules at variable distances for no apparent reason.
→ If the boules are systematically short or long without a conscious change of force: check the torso and the center of gravity first. ⬆️ PARAMETERS THAT INFLUENCE TRAJECTORY HEIGHTForward/backward torso tilt: modifies the height of the release point — forward lowers the start, backward raises it. Produces flatter or higher trajectories than expected.
Shoulder higher or lower than usual: a shoulder raised by muscular tension (fatigue, stress) throws from a higher point — higher trajectory at equal force.
Knee flexion: more flexion = lower center of gravity = lower release point. Can be used deliberately to slightly lower the trajectory.
→ If trajectories vary in height without a change of intent: check the throwing shoulder height and the torso tilt. ⚠️ CUMULATIVE EFFECTS — WHEN SEVERAL PARAMETERS DRIFTDeviated foot + open shoulder: double directional deviation in the same direction — the boule goes noticeably off to the side. Often interpreted as an "arm problem" when it is entirely bodily.
Tilted torso + locked knees: imprecise distance in both directions (short and long alternating) — typical pattern of a fundamentally unstable posture.
Turned head + closed shoulder: amplified directional deviation — the perception distorted by the head sends a signal to the arm that reinforces the shoulder deviation.
→ When errors seem "random", look for cumulative drifts — often 2 or 3 parameters drift together, creating a complex combination of errors that masks each individual cause. 🔑The trajectory of a boule in pétanque is the result of 6 bodily parameters acting simultaneously. Correcting the arm without correcting the body is like straightening the antenna of a leaning house — it may seem to improve the signal, but the house keeps leaning and the antenna will return to its tilted position. Bodily alignment is the foundation; the arm gesture is what rests on it.
Trajectories that reveal body problems
↔️Constant deviation in the same direction All the boules in a series deviate in the same direction — always to the left, or always to the right — without variation or conscious explanation. This constant pattern is the signature of a static bodily problem — a parameter is stuck in a bad position and produces the same directional error on every boule. Variable problems (arm gesture, release) would produce random variations, not a constant error. → Diagnosis: poorly oriented foot, rotated hip axis, or chronically open/closed shoulder. Check in this order. ↕️All boules short or all long for no reason A series of boules systematically short or long with the same conscious force intent. When the distance is systematically wrong in the same direction despite identical force, look for a torso tilt or shoulder height problem rather than a force problem — the force has not changed, it is the vertical axis of the throw that has drifted. → Diagnosis: torso tilt (forward = long boules, backward = short boules) or abnormally high or low shoulder. 🎲Very different trajectories in the same series 5 boules in 5 different directions for no apparent reason — a chaos of trajectories. This chaos is characteristic of an unstable base : the bodily parameters (feet, knees, torso) change slightly on each boule, producing a different throwing axis each time. It is not a single error — it is a fundamental instability of the throwing posture. → Diagnosis: instability of the stance (locked knees), uncentered center of gravity, or variation in foot placement between throws. Work on postural stability before any other parameter. 📉Regularity that degrades over the course of a game The first ends are regular, the last ones are imprecise — with a progressive degradation and in a constant direction. This progressive degradation reveals a postural drift under fatigue — a parameter that holds well at the start of the game (well-oriented feet, flexed knees, straight torso) but drifts progressively under the effect of muscular fatigue. The parameter that drifts is always the one that requires the most muscular effort to maintain for that player. → Diagnosis: identify which bodily parameter is the hardest to maintain under fatigue — that is where the drift begins. Work on that specific parameter in training under fatigue conditions.The complete body check before throwing
🧍 COMPLETE BODY CHECK — FROM THE GROUND UP 6 checks in 8 seconds — before every important boule 🦶 1. Feet — oriented toward the target, weight centered Explicitly look at the stance foot. Is it pointing directly at the target? If not, adjust before entering the circle. Check that the weight is on the central part of the foot — neither on the toe, nor on the heel. 🦵 2. Knees — slightly flexed, not locked Feel the slight activation of the quadriceps — a signal that the knees are flexed and active. No tension in full extension. This micro-flexion sets in naturally if the weight is well centered on the feet. ⚙️ 3. Hips — perpendicular to the target axis Feel that both hips are at the same level and that neither one is forward relative to the other. A hand briefly placed on each hip makes it possible to check their alignment. The hips must be perpendicular to the line toward the target. 🧍 4. Torso — vertical in both planes Feel that the torso is straight — neither tilted forward, nor backward, nor to one side. The shoulders must be at the same level. If a correction is needed, it is done by repositioning the center of gravity over the feet, not by "forcing" the torso. 💪 5. Throwing shoulder — aligned with the target The throwing shoulder must be in the direct extension of the line toward the target — neither forward (open shoulder), nor back (closed shoulder). Lower the shoulder to release it, then check that it is in alignment. 👁️ 6. Head — straight, fixed, on the target axis The head is straight (not tilted), facing the target (not turned), and the gaze falls directly on it without lateral movement of the eyes. Make sure the head will not move during the throw. This is the last check — if everything else is in place, this final control confirms that the alignment is complete.Exercises to work on body placement
01 The "mirror" exercise — see yourself to correct yourself 📍 Solo filmed training ⏱️ 30 min 🎯 Identify the deviating bodily parameters with an external viewFilm yourself in the throwing position from several angles (front, side, from behind) and analyze each bodily parameter on the images. This external view reveals drifts that proprioception alone cannot detect.
Film 10 throws from a front angle (camera in front, at shoulder height). Observe the orientation of the feet, the symmetry of the shoulders, and the position of the head. A stake driven into the ground between the circle and the target can serve as a visual reference to check alignment. Film 10 throws from a lateral angle (camera on the side, at hip height). Observe the torso tilt, the knee flexion, and any movement of the center of gravity during the throw. The lateral view clearly reveals whether the torso tips during the throw. Watch the videos frame by frame on the preparation frames (before the throw). For each parameter, note: "correct", "slightly deviating" or "clearly deviating". Two or three "clearly deviating" parameters are often at the root of the majority of trajectory errors. Work on one parameter at a time — the one identified as the most deviating. Film again after 10 correction sets. Compare the before/after videos to validate the correction. Then move on to the next parameter if necessary. 02 The "reference stake" exercise — align the body on a visible axis 📍 Solo training with simple equipment ⏱️ 45 min 🎯 Develop precise bodily alignment on the target axisUse a stake (or a string, or ground markers) to create a visible axis line from the circle to the target. Aligning on this visible axis develops awareness of bodily alignment by providing immediate visual feedback.
Draw a visible line from the circle to the target (cord, tape on the ground, line of stakes). Stand in the circle and deliberately align the stance foot on this line — it must point exactly along the axis. Observe the difference in feel compared to the usual placement. With the foot aligned on the line, check that the hips are perpendicular to the line and that the throwing shoulder is on the axis. Correct each parameter in the order of the chain: feet → hips → torso → shoulder. Throw 20 boules from this carefully aligned position. Observe whether the regularity of the trajectories is better than with the usual placement. For most players, the answer is yes — because alignment on the line corrects several parameters simultaneously. Progressively, remove the visual aids and try to reproduce the alignment from proprioceptive memory. The feel of correct alignment — the way the body feels when everything is well aligned — is the information to anchor. With practice, this proprioceptive cue becomes automatic and no longer needs the line to trigger. 📐 The ideal trajectory begins before the first swingA perfect gesture from a bad bodily alignment will never produce a good boule — because the plane in which the pendulum swings is definitively wrong from the setup onward. Bodily alignment is not a preparation — it is already the trajectory. The boule is "thrown" in its direction as soon as the body is positioned in the circle. The arm merely executes what the body has already decided.
📚 LES LIVRES DE PAQUITA Progresser à la pétanque — les guides de Paquita 🎯 TACTIQUE — MENTAL — GESTE Jouer partout — de la technique à la tactique terrain Placement corporel et trajectoire, chaîne cinétique du lancer, check postural complet, développer l'alignement corporel automatique dans toutes les conditions — le guide complet pour progresser sur toutes les dimensions du geste. 📦 Amazon 💥 SHOOTER — GESTURE — REGULARITY Become a formidable shooter Bodily alignment of the shoot, shoulder axis for directional accuracy, stance stability for shooting regularity, build a shooting gesture founded on impeccable body placement. 📦 Amazon 🎳 POINTER — AWARENESS — REFERENCE POINTS The art of pointing — precision and regularity Bodily parameters of precision pointing, alignment of feet and shoulders, torso tilt according to the aimed trajectory, develop proprioceptive awareness of placement — the guide for the pointer who controls their trajectory from the body. 📦 Amazon 🧠 MENTAL — ROUTINE — METHOD Pétanque by method Anchor the body check as an automatic routine, video analysis method for placement, correct the bodily parameters one by one with method — progress methodically on the foundations of the gesture. 📦 Amazon