Preventing biceps tendon ruptures and avoiding flare-ups

Can biceps tendon rupture be prevented?

Not every biceps tendon rupture is preventable, but many of the factors that increase your risk are ones you can influence. Tendons become more vulnerable to rupture when they are weakened by degeneration, poor blood supply, or repeated overload. Making steady, evidence-based choices about how you train, care for your body, and manage your health can meaningfully lower that risk over time.^{1 4}

The biggest modifiable risk: smoking

Research consistently identifies smoking as the single most significant modifiable risk factor for biceps tendon rupture. Studies show that smokers have a 7.5x greater risk of a distal biceps tendon rupture compared to non-smokers. Smoking reduces blood flow to tendon tissue, impairing its ability to repair minor daily micro-damage. Over time, this leads to cumulative degeneration that makes the tendon more prone to tearing under load.²

If you smoke and engage in heavy lifting or manual labor, quitting is one of the most impactful steps you can take for musculoskeletal health overall, not just biceps tendon protection. Your doctor can provide support and resources.

Load management and training habits

Biceps tendon ruptures often happen during a moment of sudden, unexpected force, but underlying tendon degeneration is almost always a contributing factor. Gradual, progressive loading gives tendons time to adapt and strengthen alongside muscles.¹

Practical steps to protect your biceps tendons during training:

• Increase training volume and weight progressively rather than in large jumps
• Warm up thoroughly before heavy lifting, giving tendons and muscles time to prepare for load
• Avoid maximal eccentric loads (such as controlling a very heavy weight through the lowering phase of a curl) without adequate preparation
• Allow adequate recovery time between heavy lifting sessions
• If you feel persistent pain or aching in your upper arm or elbow before lifting, have it evaluated before continuing heavy training

Use lifting technique safely

Proper technique during heavy lifts reduces the risk of sudden, unexpected eccentric load (forcing the muscle to produce force as it lengthens) on the biceps. When lifting:

• Face the object before lifting and use both hands when possible
• Keep the load close to your body to reduce mechanical stress on your arms
• Avoid lifting in awkward positions, particularly with the elbow bent and forearm rotated outward under heavy load
• Ask for help or use assistive equipment when moving very heavy objects

Medication and substance awareness

Several medications and substances are associated with increased tendon fragility:

• Anabolic androgenic steroids (AAS): These compounds are associated with a higher risk of upper-body tendon ruptures, likely because they cause disproportionate muscle growth that the tendons cannot match. If you use these substances, awareness of this risk is important.¹⁰
• Corticosteroids: Both oral and injectable steroids can weaken tendon tissue. Injections near or into the tendon itself carry particular risk. Discuss the risks with your doctor if repeated injections are being considered.¹
• Fluoroquinolone antibiotics: This class of antibiotics (such as ciprofloxacin) has been associated with tendon weakness and tendon rupture risk. If prescribed fluoroquinolones and you engage in heavy physical activity, inform your doctor.¹

Manage your body weight and metabolic health

Higher body weight places greater mechanical load on tendons with every movement. Obesity has been found in 36 to 66% of distal biceps rupture cases and is recognized as a contributing risk factor. Maintaining a healthy weight through sustainable physical activity and nutrition supports overall tendon and musculoskeletal health.⁴

Managing metabolic conditions such as diabetes also matters. Diabetes is associated with impaired tendon healing and increased complication rates after tendon repair.¹¹

Treat tendinopathy early

Biceps tendinopathy, a condition where the tendon becomes irritated, inflamed, or degenerated without a full rupture, is an important warning sign. Tendons that have been chronically irritated are more vulnerable to rupture when placed under sudden stress. If you have persistent pain in the front of your shoulder or elbow that is aggravated by lifting or overhead activity, seek evaluation early. Physiotherapy and activity modification are highly effective at addressing tendinopathy before it progresses.¹

How Sword supports ongoing strength and mobility

Move is a guided movement program designed to help you stay active by building strength, improving mobility, and supporting stable movement patterns over time. It’s often used after recovery from a flare-up to help maintain progress and support long-term movement health.

Sword offers movement support that fits into daily life, helping you continue building strength and mobility over time. Programs are guided by expert insight and supported by technology designed to help you stay consistent.

• Focus on strength, mobility, and stability
• Designed to support movement between flare-ups
• Guided programs you can follow on your schedule
• Non-invasive, evidence-informed approach

Clinical insight

Many of the strongest predictors of biceps tendon rupture (smoking, obesity, anabolic steroid use, and corticosteroid medications) are factors you can influence through lifestyle choices and medical management.³ Taking action and reducing these risk factors risks will help you prevent further or future injury.