Adductor (groin) strain

What it is

The adductors run from the pubic bone down the inside of the thigh and pull the leg back toward the midline. Adductor longus is the one that fails most often, usually right where its tendon anchors onto the pubic bone. An acute strain is a tear in that muscle or tendon. Long-running groin pain in the same area can be a different problem, a tendon and bone irritation that has built up over months rather than torn in a moment.

How volleyball causes it

A blocker's job is a sudden sideways push followed by a hard stop, and the adductors do the stopping. When you swing block or shuffle to close, the trail leg is left behind with the hip open, and the adductor has to catch it and reverse the direction, which is a maximal contraction from a long position. Defenders get the same demand lunging wide for a ball and then checking to recover. Sand exaggerates every part of it, because the plant foot slides outward under load and the leg ends up further into the split than you asked for, with the adductor taking up the slack.

BlockingDefensePassing

What it feels like

• Sharp pain in the inner thigh or high in the groin at the moment of a sideways push, a wide lunge, or a stop
• Tender to press along the inner thigh, often right where the tendon anchors near the pubic bone
• It hurts to squeeze your knees together against a ball or your fist
• Getting out of a car, rolling over in bed, and the first lateral step of warm-up all announce themselves
• A catch or a pull when the leg is taken out to the side, so the block close and lateral shuffle feel restricted
• Bruising appearing on the inner thigh over the next few days with larger tears

Stop and get it seen if

• A lump or bulge in the groin that appears when you cough, strain, or stand. That points to a hernia, which needs assessment rather than rehab.
• Pain in the testicle, or groin pain with fever, feeling unwell, or urinary symptoms. Those are not muscle injuries.
• A pop with immediate loss of the ability to pull the leg inward at all, or a visible gap or bunched-up muscle in the inner thigh
• Groin pain in a teenager that comes with a limp, or that also refers to the knee, especially if the hip resists turning inward. Hip joint conditions in growing athletes, including a slipped growth plate, present exactly like a groin strain and are urgent.
• Numbness in the inner thigh or groin, or the leg giving way under you

What recovery usually looks like

Stages, not a schedule. Everyone moves through these at their own pace, and the ranges are wide because real recoveries are.

1. 1. Calming the acute strain

   5 days to 2 weeks

   Let the injured tendon-muscle junction settle while gentle activation continues, because a groin that is completely rested stiffens fast.

   • Walking without a waddle or a shortened stride
   • A gentle knee squeeze gives a mild pull rather than a sharp pain
   • Getting in and out of a car no longer needs bracing
   • The tender area is smaller and more defined than it was

2. 2. Loading the adductors, especially long

   2 to 6 weeks

   Rebuild strength through the range where the muscle failed, not just in the easy short position.

   • Squeeze strength is approaching the other side
   • The leg goes out to the side to near-normal range without a catch
   • Shuffling and side-stepping at moderate speed feel normal
   • Soreness after loading settles by the next day rather than lingering

3. 3. Back to lateral volleyball

Ready to play again when

• Knee squeeze strength is symmetrical and leaves no sting afterwards
• Full-speed swing block to both sides, including closing to the antenna and stopping under control
• You can lunge wide enough to dig a ball well outside your body and return to ready
• A full session of lateral work leaves no groin tightness the next morning
• On sand, the first hard lateral step happens without hesitation

Keeping it from coming back

This is ordinary training, so unlike the rest of this page it does tell you what to do.

• Copenhagen adduction: side plank with the top leg supported on a bench and the bottom leg lifting to meet it. This is the most studied groin prevention exercise there is, and it loads the adductor long, which is how the block close loads it.
• Adductor squeezes on a ball at several different amounts of hip bend, because the block close and the dig lunge load the groin at different hip angles.
• Lateral lunges and skater bounds with a held landing, to train the catch-and-reverse the trail leg performs every time you shuffle to close.
• Side-lying hip abduction and standing band walks for the glutes on the outside of the hip. An adductor that spends a whole match fighting a weak abductor fatigues early.
• If you are moving from indoor to beach, build sand volume in stages. The first few weeks on sand are when groins go, because the foot slides and the leg is taken further than it has trained for.
• Warm up the direction change specifically with shuffles, cross-overs, and progressively wider lateral lunges before the first blocking drill, not just a jog and a static stretch.