Class IV Laser
Class IV lasers are high-power light devices (typically > 500 mW) which deliver infrared or near‐infrared photons deep into tissues. The mechanism is photobiomodulation (or biostimulation): light energy → absorbed by chromophores (e.g mitochondrial cytochrome c oxidase) → increases ATP production, modulates inflammatory mediators, increases microcirculation, accelerates tissue repair.
Primary Physiotherapy Uses / Indications
Acute and chronic musculoskeletal pain (e.g. Tendonitis, bursitis)
Post-surgical tissue healing
Deep joint pain
Edema/swelling reduction
Nerve pain syndromes
Conditions not responsive enough to superficial modalities
Benefits / Limitations
+ Non-Invasive; Fewer side effects than drugs
+ Can reach deeper tissues than many “cold lasers”
+ Often produces quicker pain relief
− May need multiple sessions
− High cost of equipment
− Requires correct wavelength, dose, safety (Eye protection, avoiding over-heating)
Shockwave
Shockwaves are mechanical acoustic (pressure) waves generated by various means (electrohydraulic, electromagnetic, piezoelectric) that transmit energy into tissues. They create microtrauma, stimulate neovascularization, break down calcification, stimulate collagen remodelling etc.
Primary Physiotherapy Uses / Indications
Chronic tendinopathies (Achilles, patellar, rotator cuff)
Plantar fasciitis
Calcific deposits (e.g. in shoulder)
Soft tissue injuries and sometimes bone-healing adjuncts
Trigger points, myofascial pain
Benefits / Limitations
+ Good evidence in many tendinopathy cases
+ Can avoid surgery for some calcifications
− Discomfort during treatment
− May require several treatments over weeks
− Efficacy depends on energy level, frequency, whether radial or focused
High Power Magnetron
This is a form of high-energy magnetic field therapy, sometimes known in the market under names like High Energy Inductive Therapy (HEIT). The idea: strong electromagnetic / magnetic fields (often pulsed) induce currents or electromagnetic effects in deep tissues, altering cell membrane potentials, stimulating circulation, influencing pain mediators and helping in regeneration.
Primary Physiotherapy Uses / Indications
Deep tissue pain (bones, joints)
Post-operative healing / bone healing
Conditions with poor circulation or chronic inflammatory states
Muscle tone modulation; sometimes for neuropathy or nerve healing
Benefits / Limitations
+ Non-invasive
+ Deep penetration
+ Can have strong regenerative / anti-inflammatory effects
− Not universally available
− Cost of device and training
− Contraindications: pacemakers, metallic implants, certain medical conditions
tDCS
Non-invasive brain stimulation: low amplitude constant electrical current applied via scalp electrodes. The current modulates cortical excitability (either increases or decreases), which can influence pain perception, neuroplasticity, sometimes motor recovery.
Primary Physiotherapy Uses / Indications
Chronic pain syndromes which have a strong central sensitization component
Post-stroke motor recovery and neurorehabilitation
Possibly mood, depression, fatigue in conjunction with therapy
Some neuropathic pain states
Benefits / Limitations
+ Non-invasive and relatively safe
+ Portable devices exist
− The evidence is still emerging; Results variable
− Requires skill in electrode placement, correct dosage
− Side effects mild but include tingling, skin irritation, headache
− Not suitable for some populations (e.g. Epilepsy without oversight)
Pneumatic Compression Therapy
Devices use inflatable sleeves, boots, etc., that rhythmically compress and decompress the limb (or affected area) to enhance venous return, reduce oedema, help lymph drainage, and improve circulation.
Primary Physiotherapy Uses / Indications
Edema (e.g. After injury or surgery)
Venous insufficiency / risk of DVT prevention
Lymphoedema
Post-traumatic swelling; Post-operative swelling
Sometimes used in athletic recovery (after training etc.)
Benefits / Limitations
+ Relatively simple, low risk
+ Can produce quick reduction of swelling
+ Can support healing by reducing pressure, improving tissue oxygenation
− Need for good fitting device
− Not useful alone where there are strong inflammatory or structural issues
− Contraindications: acute infection, some vascular disorders, maybe heart failure
Matrix
The word “Matrix” is generic; in physiotherapy it could refer to “Matrix Rhythm Therapy,” or “Matrix Treatment” platforms (matrices for electrical stimulation), or proprietary systems (e.g. combining modalities) depending on your clinic’s naming. If “Matrix” is Matrix Rhythm Therapy, the idea is rhythmic mechanical vibrations at certain frequencies applied to tissues to stimulate movement of fluids, promote circulation, reduce stiffness, improve tone. If it’s a device name, must specify.
Primary Physiotherapy Uses / Indications
Muscle stiffness, spasticity
Circulatory issues (e.g. after immobilization)
Possibly pain due to fascial restrictions, soft tissue adhesions
Can be combined with other modalities for better results
Benefits / Limitations
+ Pleasant modality often well-tolerated
+ Non-invasive, low risk
− Evidence is less robust / more variable
− Requires correct frequency & duration
− May not reach deep structures as effectively as laser or shockwave etc.
