Myositis (Tying-up) & Muscle Strain

What Triggers Myositis (“Tying-Up”) in Horses?

Myositis, often called “tying-up,” can affect any horse and is frequently linked to improper feeding or unusual exercise. When the intensity of work exceeds the horse’s fitness level, or when the diet is imbalanced, the muscles undergo significant stress.

Excess carbohydrates without sufficient exercise lead to muscle glycogen accumulation, increasing the risk of muscular issues. Another key factor is electrolyte balance, including sodium, potassium, and calcium. Deficiencies weaken muscle fibers and can trigger pain, cramps, or stiffness after exercise. The combination of physical activity, seasonal changes (summer/reduced sweating or winter/increased workload), and dietary adjustments explains why some horses show symptoms more frequently.

Recognizing and Interpreting the Signs of Myositis

Affected horses may show:

• Nervousness or reluctance to move
• Stiff or tense muscles
• Rigid gait or sudden refusal to move
• Excessive sweating

In severe cases, dark-colored urine may indicate muscle breakdown. Early stages are subtler: temporary stiffness, slight discomfort during flexions, or reduced energy levels already signal muscle fatigue. Daily observation of attitude, responsiveness, and muscle tone provides critical early warning signs

Which Supplements Help Horses Prone to Myositis?

Arbalou Myoperf is a dietary supplement designed for muscle preparation and protection. Available in liquid or granular form, it is non-doping and manufactured in France. Key ingredients include:

• Antioxidants: Vitamins E and C, plus selenium, protect muscle cells from exercise-induced oxidative stress.
• Amino acids: Lysine and methionine support muscle cell integrity and development.
• Fenugreek: Protein-rich plant that supports optimal muscle function and stimulates appetite.
• Chrysanthellum and red vine: Promote healthy blood circulation, improving oxygen and nutrient delivery to muscles.
• Baking soda: Helps neutralize lactic acid in muscles, reducing fatigue.

Arbalou Myoperf is recommended for:

• Muscle development periods
• Horses with muscular stiffness or disorders
• Post-exercise recovery
• Intensive training or competition periods
• Complementing treatment for equine myositis

Adjusting Diet to Reduce the Risk of Tying-Up

Preventive nutrition dramatically reduces the risk of myositis. Key considerations include:

• Adapt rations to actual activity to avoid exceeding muscles’ energy capacity
• Limit excess cereals or slow-release sugars to prevent glycogen accumulation
• Include reliable sources of vitamins, minerals, and antioxidants for muscle resilience

Weekly dietary highlights:

• Vitamin E and selenium: Essential for cellular protection
• Essential amino acids: Build strong muscles
• Balanced electrolytes: Support recovery and reduce cramps

Rotating between liquid and granular supplements makes administration easier and adapts to the horse’s preference. Multiple formulas are available for intensive work, recovery, or preventive routines.

Regular monitoring of the horse’s body condition, vitality, and overall well-being ensures early intervention. Consulting professionals, such as Arbalou Shop, guarantees tailored advice and optimal management strategies.