Groin Pain: Adductor Tendinopathy: Symptoms, Causes, and Rehabilitation

Groin pain, particularly adductor tendinopathy, is an issue that many athletes and active individuals struggle with, often leading to frustration and downtime. Whether you’re a professional athlete or someone who enjoys a weekend run, this type of injury can disrupt your fitness routine and impact daily activities. 

In this article, we will explore the anatomy of the adductor muscles, differentiate between adductor tendinopathy and muscle strains, and provide a step-by-step approach to managing and preventing this common injury.

Understanding the Adductor Muscles: Key to Groin Pain Recovery

The Anatomy and Function of the Adductor Muscles

The adductor muscles are a vital group of five muscles located on the inner side of your thigh. These include the adductor longus, adductor brevis, adductor magnus, gracilis, and pectineus. They are primarily responsible for bringing your legs together—called adduction—but they also play a key role in stabilising your pelvis and supporting your movements during walking, running, and more dynamic actions like jumping and kicking.

In my experience, one of the most common causes of groin injuries is the weakness of these muscles. I recall a footballer who had suffered from recurring groin injuries due to insufficient adductor strength. His rehab program focused primarily on strengthening these muscles, which led to a successful recovery and return to sport without further complications.

Adductor Muscle Groups: A Breakdown

Why Strong Adductors Are Crucial for Injury Prevention

If the adductors are weak, the body compensates by recruiting other muscle groups, leading to imbalances. This can cause undue stress on other muscles or tendons, increasing the risk of injury. In my clinic, I’ve seen numerous athletes who neglected adductor strengthening, only to face persistent injuries due to muscle imbalances.

Having strong adductors means better stability, particularly when performing actions like squatting, kicking, or changing direction rapidly. The adductors help to stabilise the pelvis, particularly during high-intensity sports. Without this stability, your other muscles (such as the glutes and hip flexors) must take over, and they may not be equipped to handle the extra load. This, in turn, increases the risk of tendinopathy or muscle strains.

Adductor Tendinopathy vs. Adductor Strain: What’s the Difference?

Adductor Strain: Symptoms and Recovery

An adductor strain typically happens suddenly, often during a high-intensity movement such as a sprint or a sharp change of direction. The pain is immediate, and you may even feel a tearing sensation in the groin area. This can lead to a muscle tear, which is graded based on severity:

For example, I had a runner come in with a Grade 2 strain of their adductor longus. After the injury, the athlete was sidelined for 6-8 weeks, following a strict rehabilitation program that included rest, ice, and gradual return to activity.

Adductor Tendinopathy: A Chronic Condition Requiring Special Attention

On the flip side, adductor tendinopathy is a chronic condition, where damage to the tendon (the fibrous tissue that connects the muscle to the bone) occurs over time. Tendinopathy usually results from repetitive stress or overuse, rather than a sudden traumatic event like a strain.

Unlike the acute nature of a muscle strain, tendinopathy is more gradual. I once worked with a soccer player named Matt, who had been experiencing mild groin pain for months. Over time, the pain worsened, especially during high-intensity drills. Through physical therapy, we identified that the issue was tendinopathy, not a strain, and we focused on managing the load on the tendon through exercises and activity modification.

Causes and Risk Factors of Adductor Tendinopathy

Overuse and Repetitive Stress: A Primary Cause of Tendinopathy

Adductor tendinopathy is often a result of overuse. It develops when the tendon is subjected to repetitive stress or excessive loading. For example, athletes who perform frequent kicking, rapid changes of direction, or high-intensity running are particularly at risk. One of my patients, a competitive footballer, noticed his tendinopathy worsening after increasing his training load too quickly. When you overload the adductors, they cannot repair themselves fast enough, leading to tendon degeneration.

Common Risk Factors for Adductor Tendinopathy

Athletes at Risk: Sports and Movements That Strain the Adductors

Sports that involve quick direction changes or forceful actions, like football, soccer, and basketball, place a lot of strain on the adductors. I’ve worked with a local soccer team where almost half of the players were struggling with groin pain, many suffering from adductor tendinopathy. These players often experience symptoms after long training sessions or intense matches, which aggravate the condition. Dancers, too, especially those in ballet or contemporary styles that involve leg extension, are at high risk for adductor tendinopathy.

Symptoms and Diagnosis of Adductor Tendinopathy

Gradual Onset of Symptoms: Recognising Adductor Tendinopathy

Unlike the sudden pain from a muscle strain, adductor tendinopathy develops slowly, with a dull, aching pain in the groin. This pain worsens over time, especially after activity. One of my patients, a regular runner, initially felt mild discomfort that escalated after longer runs. He didn’t seek help immediately, but as the pain intensified, it became clear that the issue was tendinopathy.

Other symptoms include:

• Tenderness along the pubic bone where the adductor tendons attach.
  
• Weakness in the inner thigh, especially during activities like running or squatting.
  
• Pain during specific movements, such as squatting or kicking.
  
• Increased pain after activity, often the day after intense exercise.
  

How Healthcare Providers Diagnose Adductor Tendinopathy

To diagnose adductor tendinopathy, a comprehensive clinical examination is vital. The physiotherapist will assess the pain location, movement patterns, and identify areas of tenderness along the adductor tendons. Additionally, tests like the Copenhagen 5-second squeeze test can help gauge adductor strength and pain.

In some cases, imaging may be necessary. MRI or ultrasound can identify tendon degeneration or tears, but a well-done clinical examination is usually enough to make an accurate diagnosis.

Rehabilitation and Treatment of Adductor Tendinopathy

General Principles of Rehabilitation: Load Management and Pain Control

Rehabilitation for adductor tendinopathy focuses on load management—gradually increasing the load on the tendon while controlling pain. Initially, rest and activity modification are essential, but complete rest is usually not recommended. Low-impact activities like swimming or cycling can help maintain conditioning while minimising stress on the adductors.

Phased Rehabilitation Approach for Adductor Tendinopathy

The rehabilitation process for adductor tendinopathy can be divided into three main phases:

1. Acute Phase (Pain Reduction)
   
   • Use RICE (Rest, Ice, Compression, Elevation) for the first 72 hours.
     
   • Begin isometric exercises to activate the adductors gently without straining the tendons.
     
2. Conditioning Phase (Strength and Flexibility Restoration)
   
   • Gradually introduce progressive strengthening exercises such as the Copenhagen plank.
     
   • Focus on improving flexibility and range of motion.
     
3. Performance Phase (Sport-Specific Recovery)
   
   • Gradually increase sport-specific drills, such as sprinting or cutting.
     
   • Use plyometric exercises to restore explosive power.
     

Preventing Adductor Tendinopathy: Strategies for Long-Term Health

Strength and Conditioning: The Key to Prevention

Preventing adductor injuries involves strengthening the adductors and surrounding muscles. Incorporating adductor-focused exercises like the Copenhagen plank, combined with hip abductors and core strengthening, can help create muscle balance and prevent imbalances that contribute to tendinopathy.

Warm-Up, Cool-Down, and Gradual Load Progression

Warm-up and cool-down routines should be an essential part of any athlete’s training regimen. Dynamic stretches before exercise (e.g., leg swings, lunges) prepare the muscles for movement, while static stretches after workouts help maintain flexibility. It’s equally important to avoid sudden increases in training intensity—gradual load progression allows the body to adapt without overwhelming the tendons.

Groin pain, particularly due to adductor tendinopathy, is a frustrating condition that can sideline athletes and active individuals. Understanding the anatomy of the adductors, differentiating between a muscle strain and tendinopathy, and following a structured rehabilitation plan are critical for recovery. 

By strengthening the adductors, ensuring proper movement patterns, and implementing a gradual return-to-sport strategy, you can not only recover from adductor tendinopathy but also prevent future injuries. Early intervention, a consistent rehab plan, and preventive strategies are the keys to a full recovery and long-term performance.