Can I Increase Reformer Pilates Spring Load? Rules for Strong Practitioners

Why Instructors Recommend Specific Spring Loads (It’s Not Just About “Challenge”)

Before you reach for the spring knobs, it’s crucial to understand why your instructor chooses a particular load—because it’s rarely about making the exercise “hard enough.” Reformer spring resistance is carefully selected to align with the goal of each movement, your skill level, and the core pillars of Pilates (control, precision, centering). Here’s what’s behind their guidance:

Protect your form: Lighter springs often force you to engage your core, stabilize your joints, and focus on slow, controlled movement—all non-negotiables in Pilates. Heavier springs can make it tempting to “muscle through” moves (using brute strength instead of intentional engagement), which skips the muscle activation and alignment work that makes Pilates effective. For example, a lighter spring during footwork encourages you to use your glutes and hamstrings, while a heavier spring might let you rely on your quads alone.
Target specific muscles: Different spring loads isolate different muscle groups. Instructors pick resistance that hones in on the muscles the exercise is designed to work—whether it’s your deep core, posterior chain, or upper back. Upping the spring arbitrarily could shift the focus away from those target muscles, making the move less effective.
Prevent overuse injuries: Even strong bodies need time to adapt to Pilates’ unique movement patterns. Lighter springs allow your joints (especially your shoulders, hips, and spine) to build stability gradually, reducing the risk of straining muscles or joints by pushing too hard too soon—even if you feel strong enough for more resistance.
Align with class goals: Group classes often use specific spring loads to keep everyone on the same page, focus on a particular skill (like control or balance), or cater to the average skill level of the class. Your instructor’s recommendation isn’t just for you—it’s for the collective flow of the session.

When It’s OK to Up the Spring Load (3 Key Conditions)

While you shouldn’t ignore your instructor’s guidance, there are times when increasing the spring load is safe, effective, and even beneficial—especially for strong practitioners like you. Stick to these three conditions to avoid missteps:

1. You Can Maintain Perfect Form (No Exceptions)

This is the most important rule. If you can increase the spring resistance and keep every aspect of the move aligned—no rounding your spine, no compensating with other muscles, no rushing through the movement—then it’s okay to adjust. For example: If you’re doing reformer rows with a light spring and can keep your shoulders down, core engaged, and spine neutral the entire time, adding one more spring (gradually!) is safe. But if upping the spring makes you hunch your shoulders or use your arms instead of your back, stop immediately.

2. You’re Familiar with the Exercise (No New Moves!)

Never increase the spring load for a move you’re still learning. New exercises require focus on form and muscle memory—not added resistance. Wait until the movement feels second nature: you know the cues, you can do it slowly and intentionally, and you don’t have to think about every step. Since you’ve been practicing for two months, you likely have a solid grasp of foundational moves (like footwork, rows, or bridges)—these are the only ones you should consider adjusting.

3. You’re Not Compensating for Weakness

Strong bodies often have hidden weaknesses—even if you feel powerful overall. For example: You might have strong legs but weak core stability, or strong arms but tight shoulders. If you’re upping the spring to “hide” a weakness (like using arm strength to compensate for a weak core), you’re defeating the purpose of Pilates. Only increase resistance if you’re using the correct muscles to drive the movement—not just brute strength.

When to Stick to Your Instructor’s Guidance

There are times when even strong practitioners should follow the recommended spring load—don’t be afraid to trust your instructor here. These scenarios include:

When the focus is on control, not strength: Many Pilates moves are designed to build control, balance, or flexibility—not raw strength. Lighter springs force you to slow down and engage the right muscles, which is more valuable than adding resistance.
During group classes (unless told otherwise): If your instructor says “everyone use two springs,” it’s for a reason—usually to keep the class aligned or focus on a specific skill. If you want to adjust, ask your instructor before class (more on that below).
When you’re recovering from soreness or tightness: Even strong muscles need recovery. If you’re feeling sore from a previous session, stick to the recommended spring to avoid overworking your body.
When the move targets a weak area: If the exercise is designed to build strength in a muscle group you struggle with (e.g., core or glutes), lighter springs will help you isolate that muscle without compensating.

Pro Tips for Adjusting Spring Load Safely

If you meet the three conditions above, follow these tips to up the spring load without risking injury or annoying your instructor:

Go gradual: Don’t jump from one spring to three—add one spring at a time. This lets you test if you can maintain form and avoid overexertion.
Ask your instructor first (when possible): Before class, mention to your instructor: “I’ve been practicing for two months, and I feel strong enough to add a spring to some foundational moves—would that be okay?” Most instructors will appreciate your initiative and give you personalized guidance (e.g., “Stick to light for core moves, but you can add one for leg work”).
Focus on quality over quantity: Even with added resistance, prioritize slow, intentional movement. Pilates is about control, not how much weight you can pull—heavier springs mean nothing if your form suffers.
Listen to your body: Soreness is normal, but sharp pain, joint discomfort, or fatigue that makes you compensate is a sign you’ve gone too far. Dial the spring back if you feel any of these.

Your strength is a huge asset in reformer Pilates—but it’s important to use it wisely. Upping the spring load isn’t a “reward” for being strong; it’s a tool to challenge yourself while honoring the principles of Pilates. When in doubt, err on the side of caution: stick to your instructor’s guidance, master the form, and adjust gradually.

Remember: Pilates is a practice, not a competition. Even if the recommended spring feels easy sometimes, focusing on perfect form and intentional engagement will help you grow more than adding resistance ever could. And when you do adjust the springs? You’ll know you’re doing it safely—for both your body and your practice.