Groin Strain: The Silent Killer of Basketball Players' Defensive Slides

Introduction

Groin strain primarily affects the adductor muscle group of the thigh and is common in sports requiring rapid lateral movement, such as football, ice hockey, and basketball. Basketball players are highly susceptible to this injury when their adductor strength is insufficient during defensive slides and lateral cuts.

This article integrates the Doha agreement classification to analyze the management and prevention of adductor strains.

Anatomy

The adductor muscle group includes:

• Adductor longus: most commonly injured
• Adductor brevis
• Adductor magnus
• Gracilis
• Pectineus

Doha Agreement Classification

Type	Characteristics
Adductor-related	Adductor tenderness, pain on resisted contraction
Iliopsoas-related	Hip flexor pain
Inguinal-related	Groin ligament area, associated with hernia
Pubic-related	Pubic symphysis pain
Hip-related	FAI, hip labrum

Mechanism of Injury

• Sudden acceleration during defensive slides
• Rapid direction change after a cut
• Leg caught while stepping to contest for the ball
• Twisting during post-up positioning

Key Differential Diagnoses

• Osteitis pubis: pubic symphysis pain, bilateral adductor soreness
• Sports hernia: defect in the inguinal canal wall
• Hip FAI: deep hip pain, catching sensation
• Stress fracture: tenderness over the pubic ramus

Assessment

• Squeeze test: strength measured at 5, 45, and 90 degrees of knee flexion
• Resisted adduction: pain with resisted contraction
• Ultrasound/MRI to confirm grade

Copenhagen Protocol

Core exercise: Copenhagen Adduction Exercise

• Lie on your side, place the top leg on a training bench
• Lift the hips to form a straight line
• Lower with control
• 6–15 reps × 3 sets per session

Research shows that football players performing Copenhagen training twice per week reduced injury rates by 41%.

Rehabilitation Timeline

Phase	Duration	Focus
Acute	0–7 days	Pain relief, light ROM
Early	1–2 weeks	Isometric adduction
Intermediate	2–4 weeks	Isotonic, Copenhagen
Advanced	4–6 weeks	Lateral cuts, Plyo
Return to play	6–8 weeks	Basketball-specific drills

Practical Recommendations

• Avoid excessive stretching during the acute phase, as it delays healing
• Pre-game adductor warm-up: side lunge, Copenhagen plank
• Bilateral strength assessment: HAGOS questionnaire, isokinetic testing
• Monitor whether urination or coughing triggers pain to rule out hernia
• Chronic recurrent cases require MRI to rule out osteitis pubis
• Taipei University of Sport and Chang Gung Memorial Hospital Sports Medicine Center offer HAGOS assessments

Prevention Strategies

• Begin Copenhagen training 6 weeks before the season
• Strengthen the gluteus medius to stabilize the pelvis
• Improve hip range of motion
• Reduce training load appropriately during congested periods of the season

Conclusion

Although a groin strain may seem like a minor injury, recurrent episodes can significantly impair lateral movement and explosive power. The Copenhagen Adduction is currently the most evidence-based exercise for both prevention and rehabilitation—every basketball player should incorporate it into their routine.

Related Reading

• Sports Hernia and Groin Pain: From Adductors to Core—A Coach’s Guide to Causes and Rehabilitation
• Hamstring Strain: An Analysis of Explosive Power Injuries in Basketball Players
• Runner’s Hip Flexor Strain: Complete Guide to Causes, Rehab Exercises, and Return to Training
• Runner’s Hip Flexor Strain and Iliopsoas Syndrome: Complete Guide to Anatomy, Diagnosis, Stretching, and Strengthening