MLS Laser Therapy Techniques and Photobiomodulation Uses for the Body

Discover how MLS laser therapy with photobiomodulation can effectively enhance recovery and reduce inflammation.

Abstract

In this educational post, I walk you through the latest evidence on photobiomodulation (PBM), highlight why the patented MLS multiwave locked system laser delivers safe, consistent, and clinically significant outcomes, and explain how integrative chiropractic care amplifies these benefits for musculoskeletal pain, neuropathy, bone and soft-tissue healing, and post-surgical recovery. Drawing on leading researchers’ findings and my clinical observations in sports medicine, regenerative medicine, and functional healing, I clarify the terminology, physics, physiology, dosing, and workflows related to lasers. I also show how robotic delivery improves consistency, why true pulsed emission matters for safety, and how mitochondria, microcirculation, inflammatory cytokines, and the extracellular matrix respond to targeted light. Throughout, I integrate hands-on protocols, patient positioning, dosing strategies, and practice logistics so you can confidently apply laser therapy within a modern, evidence-based, chiropractic-led integrative model.

About the author: I am Dr. Alexander Jimenez, DC, APRN, FNP-BC, CFMP, IFMCP, ATN, CCST. My work focuses on functional and regenerative solutions that bridge musculoskeletal medicine, orthobiologics, and advanced technologies. Patient outcomes and multidisciplinary collaboration inform clinical insights, and I routinely share observations through my practice platforms and professional network (Jimenez, n.d.-a; Jimenez, n.d.-b).

Key takeaways

• Photobiomodulation is more than “laser therapy”; it is targeted light that induces photochemical, photothermal, and photomechanical responses for cellular health.
• The MLS multiwave locked system synchronizes two therapeutic wavelengths to maximize depth and safety, enabling class 4 efficacy with a class 3 safety profile.
• True pulsed emission prevents thermal overload and enhances photon density at target tissues, improving mitochondrial activity, microvascular flow, lymphatic drainage, and inflammatory modulation.
• Robotic laser delivery standardizes dosing and coverage, reduces operator variability, and integrates seamlessly with chiropractic adjustments, soft-tissue work, neuromuscular re-education, and orthobiologics.
• Integrated protocols help acute, chronic, and neuropathic pain, post-surgical healing, and athletic recovery, with RCTs and registry data supporting durable outcomes.

Introduction: Setting the Stage for Integrative Healing

As I arrived at a new education and learning facility designed by Andrea Molinari and the Apex and Excel teams, I was struck by the attention to detail—reception, layout, and a dedicated laser room built for practical immersion. The environment matters because it mirrors how carefully we must deliver light-based therapies. Precision, safety, and consistency are not optional; they are the foundation for better outcomes.

Over the past 25 years, photobiomodulation has evolved from a niche technology to a cornerstone of regenerative medicine and pain management. Historically, energy devices (laser, shockwave) and orthobiologics ran in parallel silos. Today, leading researchers are demonstrating a synergistic effect when we combine energy devices with biologic therapies—shifting care from symptom suppression to cellular optimization driven by mitochondrial activation, microcirculatory improvements, and guided inflammatory modulation. This post clarifies the science and offers a clinician’s path for integrating laser therapy into chiropractic-focused care.

Laser Therapy Basics: Terms, Sources, and Tissue Interaction

To fully leverage PBM, we must be clear on terminology and physics. Laser refers to Light Amplification by Stimulated Emission of Radiation. In living tissue, four key interactions occur:

• Reflection: a portion of incident light is reflected at the skin surface or bone interfaces.
• Transmission: photons pass through tissues toward deeper targets.
• Scattering: photons deviate, potentially diluting density at the target.
• Absorption: photons are captured by chromophores (e.g., cytochrome c oxidase, hemoglobin, melanin, water), generating biological effects.

Why this matters: The clinical goal is maximizing absorption at therapeutic targets while controlling reflection and scattering. Device design, wavelength selection, emission mode, and focal geometry determine whether we reach meaningful photon density in the intended tissue layer without overheating.

Understanding Laser Sources and Classifications

• Source materials: Medical lasers are commonly diode-based (semiconductor), gas (e.g., CO2), or solid-state. For PBM, diode lasers are standard due to efficiency and tunable wavelengths.
• Classifications: Classes 1–2 are low-power (e.g., barcode scanners, pointers). Class 3 and Class 4 are used therapeutically. Class 3 delivers ?0.5 W; Class 4 exceeds 0.5 W for faster dosing and deeper target engagement.
• Marketing language (e.g., low-level, cold, high-intensity) often obscures the clinical picture. What matters is the physiological response at safe, effective doses.

Emission Modalities and Safety

• Continuous emission: constant photon output—efficient but can overheat tissue if stationary.
• Continuous interrupted (chopped/frequency): mechanically blocks continuous light intermittently; safer than fully continuous, yet the source never truly turns off.
• True pulsed emission: the source turns off between pulses, allowing tissue to dissipate heat while delivering higher peak power in bursts for superior photon density without crossing thermal damage thresholds.

Wavelengths and the Therapeutic Window

Most PBM is delivered between 600–1200 nm, where the absorption profiles of melanin, hemoglobin, and water permit physiologic effects with controlled heating. Within this range, near-infrared wavelengths (e.g., 808 nm, 905 nm) are used to target deeper musculoskeletal, neural, and vascular structures.

MLS Laser Therapy: What Makes the Multiwave Locked System Unique

The MLS multiwave locked system is built on three pillars:

• Multiple wavelengths: commonly 808 nm (continuous) and 905 nm (pulsed), strategically chosen for complementary absorption and depth.
• Locked synchronization: both wavelengths fire in a precisely synchronized pattern, creating homogeneous energy distribution across superficial and deeper tissues.
• Patented pulsing: the 905 nm true pulses occur in nanoseconds, with genuine off-times to prevent cumulative thermal rise beyond safe thresholds.

Why this matters clinically:

• Class 4 efficacy with Class 3 safety: fast treatment times, solid dosing, low risk of burns.
• Higher peak-power pulses increase photon density, improving the probability of mitochondrial and microvascular effects at the target depth while avoiding inhibitory sub-thermal plateaus (an approximately 43–45°C zone that can blunt bioreactivity).
• Consistent spatial overlap reduces “missemulti-wavelength ” compared to unsynchronized multi-wavelength devices, enhancing coverage in complex joint and fascial regions.

How MLS Delivery Improves Outcomes and Workflow

• Point-by-point dosing: Essential for focal targets (e.g., joint recesses, tendon insertions). True pulsed Class 4 safety lets us hold over a spot as needed.
• Scanning: Useful for broader fields (e.g., paraspinals, large muscle groups). Manual scanning is operator-dependent; robots standardize coverage and energy delivery.
• Robotic delivery: By maintaining consistent trajectories, speeds, and focal distances, we avoid variability and ensure reproducible fluence (J/cm²). This frees staff to perform concurrent therapies—mobilization, soft-tissue release, neuromuscular re-education—maximizing clinic efficiency without compromising safety.

Physiology: What Photobiomodulation Does at the Cellular Level

Photobiomodulation triggers three interrelated responses:

1. Photochemical response

• Mitochondrial activation: Near-infrared photons are absorbed by cytochrome c oxidase, accelerating electron transport and ATP synthesis. Improved ATP availability supports ion pumps, protein synthesis, and cytoskeletal repair, all of which are vital in tendonopathy, muscle strain, and post-surgical healing.
• Reactive oxygen species (ROS) signaling: Controlled, low-level ROS acts as a second messenger to upregulate pro-repair genes, modulate NF-?B, and influence growth factors. The net effect is proliferation and matrix remodeling without inflammatory overshoot.
• Nitric oxide (NO) dynamics: PBM can prompt NO release from mitochondrial binding sites, augmenting vasodilation and microcirculation.

2. Photothermal response

• Microvascular improvements: Mild, controlled heat facilitates vasodilation, thereby enhancing oxygen and nutrient delivery while aiding the removal of metabolic waste.
• Lymphatic drainage: Temperature and NO-mediated vessel changes support edema resolution, particularly valuable in post-surgical swelling and acute sprains.

3. Photomechanical response

• Extracellular matrix (ECM) effects: Rapid pulsed energy induces transient ECM deformation, modulating mechanotransductive pathways (integrins, focal adhesions). This helps reorganize collagen fibrils, reduce myofascial stiffness, and enhance tensile properties during remodeling.
• Neurophysiology: Pulsed light can modulate neural membrane potentials, reduce ectopic firing, and influence ion channel kinetics, contributing to analgesia and improved sensory function in neuropathic pain.

Inflammation Modulation vs. Suppression

A common misconception is that a laser “turns off” inflammation. PBM modulates rather than suppresses:

• Upregulates anti-inflammatory mediators (e.g., IL-10) while
• Downregulating pro-inflammatory cytokines (e.g., TNF-?, IL-1?).

This preserves the essential acute inflammatory phase for tissue clearance and repair while preventing chronic, maladaptive inflammation. For orthobiologics (e.g., PRP, BMAC), this matters: PBM supports biologics without blunting the intended early inflammatory signals.

Why MLS Pulsing Improves Safety and Biologic Performance

• Thermal thresholds: Damage occurs above ~45°C; biological inhibition may occur in the 43–45°C range. True pulses with nanosecond off-times allow tissues to dissipate heat, keeping temperatures in a therapeutic zone and maintaining enzymatic efficiency.
• Peak power and photon density: Short pulses deliver high peak power without raising average thermal load. The result is better chromophore engagement deep within the skin, which is crucial where bone reflects >90% of Class 4 light—making target windows and patient positioning a priority.

Dosing Fundamentals: Getting the Energy Where It Counts

Effective dosing comes down to:

• Wavelength selection: 808/905 nm synergy balances superficial and deep targets.
• Emission mode: True pulsed for safety and density; synchronized multiwave for evenly distributed coverage.
• Power density (W/cm²) and fluence (J/cm²): The dose must match tissue depth and pathology phase.
• Exposure time: Short enough to avoid thermal accumulation, yet long enough to achieve the therapeutic fluence.
• Geometry and positioning: Maintain focal distance, angle, and alignment with joint windows (e.g., medial/lateral recesses) to minimize reflection from cortical bone.

Treatment Structures: Acute, Chronic, and Post-Surgical Pathways

• Acute pain/injury: 4–6 sessions, 2–3x/week; focus on edema reduction, pain modulation, and early mitochondrial support. Integrate gentle chiropractic mobilization to restore joint play without stressing healing tissue.
• Chronic pain: 8–12 sessions, 2–3x/week; combine PBM with spinal and extremity adjustments, myofascial release, nerve glides, and corrective exercise to retrain movement patterns and reinforce ECM remodeling.
• Post-surgical wounds: Frequent early PBM dosing supports microcirculation and granulation, then transitions to collagen maturation support. Highly valuable over plates, rods, and total joints when delivered within MLS safety parameters.

Hands-Free Robotic Laser: Consistency and Workflow Integration

The robotic arm ensures standardized coverage and dose accuracy across diverse regions—foot, knee, hip, spine, shoulder, and cervical—reducing operator variability. This hands-free approach lets clinicians:

• Perform soft-tissue work or trigger point release
• Add shockwave or neuromuscular re-education in the same visit.
• Maintain precise protocols across the staff, supporting high throughput while ensuring consistent quality.

Clinical Indications: Where Integrative Laser Care Excels

• Musculoskeletal pain: plantar fasciitis, knee osteoarthritis, chronic neck pain, tendinopathies, rotator cuff, lateral epicondylitis, lumbar facet pain.
• Neuropathy and neuropathic pain: diabetic polyneuropathy, radiculopathy sensitization, post-surgical nerve irritation; specialized PBM approaches are emerging, with international approvals advancing.
• Post-surgical recovery: incisions, dehisced wounds, infections, burns; PBM supports microvascular flow, lymphatic clearance, and collagen deposition—counterintuitive but effective even in burn healing when safety is maintained.
• Athletic recovery: delayed-onset muscle soreness, microtears, tendon remodeling; PBM, paired with chiropractic adjustments and kinetic-chain retraining, accelerates return to sport.

Integrative Chiropractic Care: Why Alignment, Mobility, and Neuromuscular Control Matter

PBM primes tissues, but movement integration consolidates gains:

• Spinal and extremity adjustments restore segmental motion, reduce nociceptive input, and normalize afferent signaling to the central nervous system. This complements PBM’s modulation of neural sensitization and inflammation.
• Soft-tissue and fascial release resets tone and sliding surfaces, enhancing ECM reorganization triggered by photomechanical effects.
• Neuromuscular re-education reinforces new motor patterns by leveraging increased ATP and reduced pain to retrain stabilizers and movers, thereby preventing relapse.
• Functional loading and progressive exercise rebuild tendon stiffness, muscle capacity, and joint control—critical to translate biological changes into durable function.

Clinical Observations from Practice

In my clinics and throughout my professional network, I consistently see:

• Faster pain relief in plantar fasciitis when PBM is added to foot/ankle adjustments, talocrural mobilization, and calf fascial release.
• Improved knee OA function when PBM is combined with tibiofemoral and patellofemoral mobilizations, quadriceps and hip strengthening, and gait retraining. Patients often report earlier reductions in morning stiffness and better tolerance to closed-chain exercises.
• Post-operative cases benefit from enhanced incisional healing and edema control with PBM; gentle instrument-assisted soft-tissue work and graded loading then restore motion without flare-up of inflammation.
• Neuropathic symptoms show better tolerance to nerve glides and desensitization drills after PBM—patients report less burning/tingling and improved sleep, enabling progression to strength and balance training.

Synergy with Orthobiologics and Shockwave

Combining PBM with PRP or BMAC supports cellular energy demands during repair and modulates inflammatory signaling without compromising biologic intent. When integrated with shockwave, PBM further enhances microcirculation and pain modulation. In practice, this triad—PBM, orthobiologics, and shockwave—can move patients from symptom management toward cellular recovery and function restoration.

Safety Over Implants and Tattoos

MLS’s true pulsed, synchronized delivery has a favorable profile around implants and tattoos compared with conventional high-power continuous lasers. This expands clinical reach in orthopedic populations and athletic communities where implants and tattoo ink are common.

Protocols, Packages, and Patient Communication

• Session design: 6–12 minutes per region, adjusted for size and depth; anterior–posterior or combined fields for joints.
• Frequency: 2–3 sessions per week; every other day is typical. Daily sessions may be considered in early wound care when logistics allow.
• Packages: Acute 4–6 visits; chronic 8–12 visits; set clear goals and checkpoints, emphasizing cumulative effects and functional milestones.
• Education: Use patient-friendly analogies, such as photosynthesis: “Your cells have light-sensitive proteins that use specific wavelengths like plants use sunlight—this boosts energy and healing while we restore motion and strength.”

Evidence Highlights: RCTs and Registry Outcomes

• Randomized controlled trials support the use of PBM for plantar fasciitis, knee osteoarthritis, and chronic neck pain, with improvements in pain, function, and quality of life. Class 4 laser delivered with MLS safety parameters shows comfortable use over surgical implants and tattoos, widening the treatable population.
• Registry data from independent outcomes platforms tracking combined orthobiologics + PBM report:

• Faster pain score declines in the first month and sustained improvements at 3, 6, and 24 months.
• Higher desired functionality
• Patient satisfaction rates exceeding 90% in the long term.

These findings echo what I see clinically—PBM accelerates early recovery and supports durable gains when integrated with biomechanics-focused chiropractic care and graded exercise.

Why We Use Multi-wavelengths: The Rationale

• Synchronized multiwavelengths: Broaden target coverage and reduce “holes” in the treatment field, critical for complex joint architecture and fascial planes.
• True pulsing: Achieves high peak power with safe average thermal load, enabling point dosing over sensitive structures without burns.
• Robotic delivery: Ensures reproducible fluence and coverage; reduces human error; allows concurrent manual therapy to lock in neuromuscular gains.
• Integrative chiropractic: Restores motion and neurology to actualize PBM’s biochemical potential—without neuromechanical change, cellular improvements risk being transient.
• Orthobiologics and shockwave pairing: Aligns energy and mechanotransductive stimuli with biologic inputs, achieving a systems-level healing environment.

Putting It All Together: A Patient Journey

• Day 1: Assessment identifies plantar fasciitis, calf tightness, and pelvic rotation. We begin PBM at the plantar fascia and calcaneal enthesis, perform lumbar–pelvic adjustments and ankle mobilizations, and teach foot intrinsic activation.
• Day 3–7: PBM sessions continue; add soft-tissue release of posterior chain, graded loading with isometrics and short-range eccentrics.
• Week 2–4: Pain and morning stiffness decline; progress to closed-chain drills and gait retraining. If needed, consider shockwave for recalcitrant collagen disorganization; PBM supports post-shockwave microcirculation.
• Week 4–8: Functional return to running drills; maintain PBM as taper support during volume increase. Outcomes sustained at 3–6 months with home exercise compliance.

Practice Considerations: Logistics and ROI

Clinicians rarely adopt PBM solely for revenue; they adopt it to help patients heal better and faster. That said, hands-free robotic delivery, standardized protocols, and multi-condition utility make PBM a high-value addition. When implemented with staff training, anatomical software guidance, and integrated care plans, the device supports clinical excellence and practice efficiency.

Conclusion: Modern, Evidence-Based, Integrative Laser Care

Photobiomodulation—particularly with MLS multiwave locked technology—represents a maturing frontier in regenerative and pain medicine. By pairing precise, synchronized, true pulsed light with chiropractic adjustments, soft-tissue therapies, neuromuscular re-education, and, when appropriate, orthobiologics and shockwave, we achieve a comprehensive approach: safer delivery, better dosing, mitochondrial optimization, and functional restoration. The future of musculoskeletal care is not in silos—it is in integration, with PBM as a powerful bridge from cellular health to whole-person function.

References

• Jimenez, A. (n.d.-a). Dr. Alex Jimenez, chiropractor in El Paso, Texas. Personal Injury Doctor Group. https://personalinjurydoctorgroup.com/
• Jimenez, A. (n.d.-b). Dr. Alexander Jimenez. LinkedIn. https://www.linkedin.com/in/dralexjimenez/

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