Why Is Stretching Bad for hEDS & Hypermobility?

When your muscles feel tight and knotted, your first instinct is usually to stretch them. Stretching often provides a temporary rush of endorphins and momentary sensory relief, which makes it feel like the right thing to do. However, if you have Hypermobile Ehlers-Danlos Syndrome (hEDS) or a hypermobility spectrum disorder, standard stretching can actually cause more harm than good ^[1][2].

In a body with hEDS, muscle tightness is rarely caused by muscles actually being too short. Instead, your muscles are locked in a continuous, exhausted spasm, working overtime to act as a brace for your unstable joints ^[3][1][4]. By stretching these already overworked muscles, you remove the only protective barrier keeping your joints in place, significantly increasing your risk of joint instability, subluxations (partial dislocations), and pain ^[1][3][5].

Why Your Muscles Feel So Tight: Compensatory Spasms

In a body without hEDS, ligaments and tendons act like strong, sturdy ropes that hold the skeleton together and limit how far joints can move. In hEDS, a genetic difference in collagen makes these connective tissues overly elastic and lax ^[1]. Because the ligaments are not providing adequate structural support, the nervous system senses that the joints are dangerously loose.

To prevent the joints from sliding out of place, the brain recruits the surrounding muscles to tighten up and act as temporary splints—a process called compensatory muscle guarding ^[3][4]. Your muscles are never meant to be full-time joint stabilizers. Because they are constantly engaged, they become fatigued, forming painful knots and spasms ^[3][1]. Additional factors, such as an overactive nervous system (central sensitization) and dysautonomia (like POTS), can also make the body’s nervous system hyperexcitable, lowering the threshold for these protective spasms to occur ^[6][7][8].

The Danger of Traditional Stretching

When you perform a traditional static stretch (holding a position to lengthen a muscle), you are fighting against your body’s protective mechanism. Stretching in hEDS is problematic for several reasons:

• Increased Subluxation Risk: By forcing a tightly guarded muscle to relax and lengthen, you remove the “splint” holding that joint together, leaving the joint highly vulnerable to subluxing or fully dislocating ^[1][3].
• Worsening Laxity: People with hypermobility often cannot feel when a joint has moved past a safe range of motion. When you stretch, you are likely stretching the already compromised ligaments and tendons rather than the muscle belly, causing the joints to become even looser permanently ^[3][5].
• Rebound Spasms: When you stretch a hypermobile joint too far, the nervous system panics, sensing the joint is in danger. As a result, it will often cause the muscles to clamp down even tighter afterward to protect the area.

Because increasing range of motion in joints that are already hypermobile exacerbates joint instability and pain, standard flexibility-based physical therapy or activities like extreme yoga are strongly advised against ^[1][2][9].

Safe Alternatives for Immediate Relief

When you are in severe pain from muscle knots, being told “don’t stretch” can be incredibly frustrating. Fortunately, there are ways to manage these symptoms without compromising your joint stability ^[10][11]. To find immediate relief from exhausted, spasming muscles without static stretching, consider:

• Heat Therapy: Using heating pads or taking warm Epsom salt baths can increase blood flow and gently soothe muscle aches without elongating the protective muscles.
• Gentle Superficial Massage: Light massage can provide temporary sensory relief. However, deep tissue massage should be approached with caution, as forcefully releasing a muscle knot can remove the joint’s “splint” just like stretching does.
• Active Range of Motion: It is important not to develop a fear of moving. While static stretching (holding a stretch to force flexibility) is harmful, gentle, active movement—like slow shoulder rolls or simply moving your joints through their comfortable, controlled path—helps keep blood flowing and muscles active without stressing the ligaments ^[2].

What Your Physical Therapy Should Focus On

Rather than trying to lengthen tight muscles, physical therapy for hEDS must focus on improving how your muscles support your joints safely ^[12][9]. Your physical therapist should prioritize:

• Joint Stabilization and Strengthening: Building up the strength of the muscles around your unstable joints helps them carry the load more efficiently, so they don’t have to stay locked in a painful spasm ^[2][13][14].
• Proprioceptive Training: Proprioception is your brain’s ability to know where your body is in space. Proprioceptive deficits are common in hEDS ^[13][14]. By training this sense, you teach your brain what a “normal” range of motion feels like, helping you avoid hyperextension ^[12][15].
• Neuromuscular Control: Retraining movement patterns to ensure you are engaging the correct muscles during daily activities, sometimes aided by compression garments or specialized bracing ^[9][16][1].

When your muscles become stronger and your nervous system trusts that the joint is stable, the chronic muscle guarding will naturally begin to decrease.