Arming the Ball
Also known as: arming the ball, all arm forehand, all-arm forehand, hitting with just my arm
Arming the ball means swinging with the arm alone instead of turning the legs, hips and shoulders first. To stop it, make an early unit turn, start the forward swing by rotating your hips and torso, and let a relaxed arm follow. The arm should feel like it is along for the ride.
Power in a groundstroke comes up from the ground. The legs push, the hips and trunk rotate, and the arm and racquet whip through last. When a player arms the ball, the body stays still or turns late and the arm does all the work. The result is less pace and spin, a tired arm and shots that vary from one swing to the next.
The usual causes are late preparation, a missing unit turn, feet that stop moving and a tight grip. Players who feel rushed often skip the turn and shove the ball with the arm. Trying to hit harder makes it worse. The arm tightens and takes over.
Turn the shoulders early. The racquet then goes back with the body. Feel the forward swing start from the hips and the back leg. Keep grip pressure light. Many coaches rebuild the order with shadow swings, medicine-ball throws and rallies at half pace. If your arm is sore after playing, look at technique and equipment. See a qualified medical professional if pain persists.
Tips by skill level
Shadow swing with your free hand on the racquet throat until the shoulders have turned. Then start the swing by turning your hips and let the arm follow.
Check the order on video. The hips should start forward before the shoulders, and the shoulders before the arm. If the racquet moves first, the chain is running backward.
Example
His forehand feels weak even though he swings hard. Video shows his shoulders barely turn before the forward swing. After a few sessions of early unit turns and half-pace rallies with a loose arm, his ball has more pace for less effort.
Why it matters
Arming the ball limits power and spin and puts the workload on the arm. Using the whole body gives more pace with less strain on the arm.
Common mistakes
- Swinging harder with the arm to get more pace
- Skipping the unit turn when rushed
- Gripping the racquet tightly
- Starting the forward swing with the hand instead of the hips and torso
Frequently asked questions
How do I stop arming the ball in tennis?
Turn your shoulders early, start the forward swing by rotating your hips and torso, and keep a light grip. Let the arm follow the body. Half-pace rallies and shadow swings help rebuild the order.
What does arming the ball mean?
It means swinging with only the arm while the legs, hips and shoulders stay still or turn late. It costs power and spin and tires the arm.
Why does my forehand feel all arm?
Usually the shoulders have not turned before the ball arrives, or the feet stopped moving. Prepare earlier with a unit turn and start the swing from the hips.
Related terms
- Kinetic Chain BreakdownA kinetic chain breakdown is a skipped or broken link in the ground-up leg, hip, torso, and arm sequence. The arm then has to make power on its own.
- Kinetic ChainThe kinetic chain passes force from the ground up: legs, hips, torso, shoulder, arm, racquet. Each segment speeds up the next, multiplying racquet-head speed.
- Unit TurnA unit turn is rotating the hips and shoulders together as one unit to prepare for a groundstroke. The arm does not take the racquet back on its own.
- Hip RotationHip rotation is the pelvis turning from the coiled backswing toward the target on the forward swing. It is the primary driver of power in the kinetic chain.
- Grip Pressure (Tennis)Grip pressure is how tightly a player holds the racquet. It should generally stay relaxed through most of the swing, firming only briefly at contact.
- Core Rotation in StrokesCore rotation is the turning of the torso (between hips and shoulders) in a stroke. It passes energy from the legs and hips up to the arm and racquet.
Related guides & benchmarks
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