Top 8 Range of Motion Machines in the USA for 2025 — Motorized and Passive Devices for Shoulders, Knees, Wrists, and Ankles

Kinetec Centura Shoulder CPM is positioned as the market-leading hospital-grade device thanks to a robust motor, wide adjustable range of motion, and extensive programmable protocols that support complex post‑operative regimens. Compared with the other units in this list it emphasizes long-term reliability and a wide service network, which reduces total cost of ownership for large clinics despite a higher upfront price. Its technical durability and proven clinical track record make it the go-to choice for high-volume orthopedic centers needing consistent performance.

The Chattanooga OptiFlex 3 Knee CPM is a market leader for clinics that require precision and advanced programming in Knee Continuous Passive Motion (CPM) Devices, offering fine-tuned range-of-motion control, programmable therapy cycles, and clinician-focused features. While it generally comes at a higher upfront price than basic models like the Kinetec Spectra Essential, its technical sophistication and comprehensive support from the Chattanooga/DJO distribution network can reduce long-term clinical workflow costs and improve therapy reproducibility compared with simpler or lower-cost devices. For facilities prioritizing adjustable treatment parameters and detailed clinician control, the OptiFlex 3 often justifies its premium through improved therapeutic flexibility.

The TheraBand FlexBar is a low‑cost, portable resistance bar engineered for eccentric and rotational forearm and wrist training, particularly effective for restoring functional wrist ROM and treating conditions like lateral epicondylitis. Technically simple and inexpensive compared with motorized or multi‑piece systems, the FlexBar excels at targeted eccentric loading and pronation/supination control that complements finger devices like the Digi‑Flex or Rolyan. Its financial accessibility and durability make it a go‑to for home exercise programs focused on improving wrist mobility and forearm strength without specialist equipment.

ProStretch Plus is an adjustable, low-profile calf and foot stretcher designed for progressive dorsiflexion and plantarflexion stretching; its stepwise angle settings make it a cost-effective choice for home users who need more control than a simple rocker. Compared with clinic-grade devices in this list, it strikes a balance between price and functionality, offering greater adjustability than basic rollers while being more affordable than heavy-duty slant boards or specialty hamstring systems.

The Biodex System 4 Pro is the market-leading multi-joint programmable range-of-motion system, prized for its mature software ecosystem, wide library of validated protocols, and high-precision isokinetic testing capabilities that support both clinical and research workflows. It commands a premium price compared with some competitors but delivers higher throughput, tighter calibration, and a broader test battery than lower-cost alternatives like Kinetec or HUMAC NORM, making it the go-to choice when accuracy and multi-joint automation are mission-critical.

The AlterG M320 Anti-Gravity Treadmill occupies a unique market leader role for postoperative gait and ROM recovery by enabling precise body-weight support using differential air pressure, allowing earlier and safer functional movement retraining. Although it represents a significant capital investment relative to CPMs and even some dynamometers, its technical advantage—progressive partial-weightbearing without assistive harnesses—delivers measurable functional gains and lowers reinjury risk, making it complementary to stationary ROM devices like Biodex and HUMAC. Facilities that treat high volumes of athletes or prioritize accelerated, function-focused return-to-play plans find the AlterG’s outcomes justify the higher upfront cost.

The Kinetec Prima Advance represents the technical best-in-class portable ROM unit on this list, with advanced programming, finer range and speed control, and expanded joint compatibility designed for high-acuity rehabilitation needs. Although it commands a premium price relative to entry-level and budget models, its enhanced precision, integrated safety features, and expanded therapy modes deliver superior clinical flexibility compared with more compact or economy-oriented competitors.