Knee Rehabilitation Made Easier: This Quadriceps Training Chair Helps Patients with Lower Limb Joint Dysfunction Regain Leg Strength

(Source:Xiangyu Medical）

For patients with limited knee joint mobility, scientific and controlled targeted exercises are key to restoring joint range of motion and rebuilding leg muscle strength. Conventional training methods often involve difficulty in controlling intensity and non-standard movements, which can easily lead to secondary injuries. A professional multi-functional quadriceps training chair can address these rehabilitation challenges and safeguard knee joint rehabilitation training.

Today, we will introduce to youQuadriceps Training Chair (XYGS-2), suitable for multiple scenarios including clinical rehabilitation, home recovery, and institutional training; integrates resistance training with joint traction, features precise adjustment, and accommodates patients at different stages of rehabilitation.

Quadriceps Training Device XYGS-2

Yu An Xie Bei No. 20190015

Yu Medical Device Advertisement Approval (Text) No. 271119-88371

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2 Core Features: One-Stop Solution for Lower Limb Joint Rehabilitation Needs

This training chair is specifically designed for individuals with lower limb joint dysfunction, covering two core rehabilitation functions to accurately meet the essential needs of rehabilitation training:

☑ Active resistance training for the quadriceps femoris:Stimulate the quadriceps femoris muscle group of the thigh, specifically strengthen the core strength of the legs, enhance knee joint support and stability, and build a solid foundation for leg movement.

☑ Professional Knee Joint Traction Training:Gradually restore the normal range of motion of joints through controlled, gentle traction, helping joint function return to normal.

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Multi-dimensional Adjustment, Adaptable to All Stages of Rehabilitation Training

The core of rehabilitation training lies in its precision and personalization. The equipment features multi-part adjustable structures that can be freely fine-tuned based on the patient’s height, body type, and rehabilitation progress, ensuring optimal training adaptability:

Lifting Stand Adjustment:0-130mm wide-range adjustment, adaptable to different leg heights, ensures standard training posture and avoids compensatory force generation.

Calf Pad Adjustment:0-470mm ultra-long adjustment stroke, covering multi-dimensional leg placement needs, adapting to different postures for flexion-extension training and traction training.

Assist Handle Adjustment:0-280mm Adjustable Range: Easily Control Training Intensity and Assistance Level, Ensuring Safe Training for Beginners and Early-Stage Rehabilitation Patients.

Ultra-Large Range of Motion:Calf brace swing angle ≥120°, fully meeting the training needs for knee joint flexion and extension activities.

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Stable Load-Bearing, Worry-Free Rehabilitation Without Burden

The equipment strictly controls load-bearing capacity and stability to mitigate training risks:

The overall seat rated load capacity reaches 135kg, with a horizontal seat cushion rated load of 55kg. It offers solid weight-bearing support, suitable for most users, ensuring stable training without wobbling.

Equipped with four 1.8kg dedicated weight plates, ensuring balanced and stable resistance for uniform and controllable strength training. This promotes more scientific workouts and prevents joint injuries caused by uneven force distribution.

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Precision Materials, Durability and Comfort in Perfect Harmony

The device is constructed from multiple materials, including industrial aluminum profiles, multi-layer boards, rubber, high-density foam, and wear-resistant leather:

The profile frame is sturdy, pressure-resistant, not easily deformed, and has a long service life;

The multi-layer board structure is stable with strong support;

Rubber accessories are non-slip and wear-resistant;

Thickened sponge seat cushion, soft and breathable, with excellent wrapping; no discomfort or fatigue during long-term training;

Wear-resistant, waterproof, and easy-to-clean leather ensures hassle-free daily maintenance, making it ideal for high-frequency rehabilitation use.

Clinical Evidence

The rehabilitative effects of quadriceps training are not merely anecdotal; multiple domestic and international clinical studies and authoritative journal publications have confirmed that a standardized rehabilitation protocol combining quadriceps resistance training with knee joint traction effectively enhances quadriceps muscle strength and improves overall knee function, representing a clinically recognized ideal rehabilitation regimen.

Validation of Specific Quadriceps Muscle Strength Enhancement:

“Chinese Journal of Rehabilitation” 2026 clinical controlled study confirmed that, for patients with limited knee function after knee surgery,Adopting a controlled progressive quadriceps resistance training protocol, after 12 weeks of standardized rehabilitation intervention, patients demonstrated a significant increase in peak isokinetic knee extension strength of the quadriceps, with a muscle strength recovery improvement rate of 92%. This approach can address issues such as postoperative disuse atrophy, muscle strength loss, and insufficient muscle activation., compared with traditional manual training, the efficiency of muscle strength improvement is increased by more than 30%, making it a common clinical method for muscle strengthening rehabilitation.

Source: Huang Kairong, Tu Junshi, Li Fangxin, et al. Efficacy of Blood Flow Restriction Training on Quadriceps Morphology and Isokinetic Knee Extension Strength Recovery After Arthroscopic Knee Surgery[J]. Chinese Journal of Rehabilitation, 2026, 41(02): 88-93.

Clinical Evidence of Overall Improvement in Knee Joint Function:

Research published in the core journal “Chinese Journal of Tissue Engineering Research” indicates that targeted graded resistance training for the quadriceps can optimize the activation balance between the medial and lateral quadriceps muscle groups, correct muscular strength imbalances around the knee joint, and alleviate symptoms such as abnormal joint loading, catching during flexion and extension, and limited range of motion.

Clinical data show that,After 8–12 weeks of standardized training, patients’ knee Lysholm functional scores improved significantly, with substantial enhancements in joint stability, weight-bearing capacity while standing, and ability to perform activities of daily living; this approach can delay the progression of knee osteoarthritis and restore knee motor function.。

Source: Lu Ming, Wang Lei, Zhang Yang. Effects of Resistance Training on Quadriceps Muscle Mass and Knee Joint Function in Patients with Osteoporosis Complicated by Sarcopenia[J]. Chinese Journal of Tissue Engineering Research, 2026, 30(15): 2312-2317.

Suitable for rehabilitation departments in hospitals, health and elderly care institutions, physiotherapy centers, as well as for home-based self-rehabilitation use.Quadriceps Training Chair: With the core advantage of all-in-one multifunctionality, it provides a one-stop solution for lower limb joint rehabilitation challenges, progressively helping every patient regain leg strength.

PleaseRead the product instructions carefully

or use under the guidance of medical personnel

See the package insert for contraindications and precautions.

This article is for informational purposes only and shall not be used for any diagnostic or therapeutic purposes. For medical advice, please consult a qualified healthcare professional.

Manuscript | Han Bing'ao

Editor | Gao Xiaoxue

Proofreader | He Zhibin

Reviewed by | Manager Zhao