The AE-KS110 is the most distinctive and clinically comprehensive station in the Optimized Motor Skills Training (KS) Series — a unique 2-in-1 dual-configuration core rehabilitation station that delivers both lumbar back extension training (Configuration A) and abdominal core strengthening (Configuration B) within a single KS series station code. The KS110 hydraulic trainer provides both functional capabilities in a single procurement — making it the most space-efficient and cost-effective complete core rehabilitation solution.

Both configurations feature two-way hydraulic damping resistance with 10-grade adjustment and a maximum user loading capacity of ≤150 kg. 

Configuration A — Lumbar Back Extension Station

Dimensions: 970 × 805 × 1,030 mm | Net Weight: 40 kg | Capacity: ≤150 kg

Training Effects:

• Strengthen lower back muscles
• Tighten the abdomen
• Strengthen the strength and vitality of the lower back lumbar spine
• Reduce the risk of waist injury
• Slow down lumbar degeneration konmed

Clinical Function: Configuration A trains the posterior core muscle chain — the erector spinae (spinalis, longissimus, iliocostalis), multifidus, and quadratus lumborum — through a seated or supported bilateral trunk extension movement against two-way hydraulic resistance. 

• Clinical Highlights of Configuration A:

1. Lumbar Degeneration Prevention Progressive lumbar extensor strengthening is one of the most evidence-supported conservative interventions for slowing intervertebral disc degeneration and facet joint arthrosis — building the paraspinal muscle "corset" that reduces compressive and shear loading on degenerating spinal structures during daily activities.
2. Waist Injury Risk Reduction Erector spinae and multifidus strengthening through Configuration A directly reduces the peak spinal loading forces encountered during manual handling, bending, and lifting — the primary mechanism of workplace lumbar injury. The hydraulic resistance enables progressive loading within the pain-free range, building both the strength and the neuromuscular control needed for safe lumbar loading.
3. Multifidus Rehabilitation The multifidus — which undergoes selective atrophy following acute low back pain episodes and fails to recover spontaneously — is the primary deep stabiliser target of Configuration A's trunk extension movement. Progressive multifidus rehabilitation through Configuration A directly addresses the primary mechanism by which acute low back pain becomes chronic recurrent pain.

Target Muscles — Configuration A:

• Erector spinae (spinalis, longissimus, iliocostalis) — primary trunk extensors
• Multifidus — deep segmental spinal stabiliser; selective atrophy in low back pain
• Quadratus lumborum — lateral trunk stabiliser and lumbar extensor contributor
• Gluteus maximus — powerful hip extensor co-contributing to trunk extension

Configuration B — Abdominal Core Strengthener Station

Dimensions: 1,045 × 740 × 960 mm | Net Weight: 42 kg | Capacity: ≤150 kg

Training Effects:

Exercise the abdominal muscles and strengthen the abdominal core muscles

• Tighten the abdomen to avoid sagging internal organs
• Strengthen flexibility and stability of lumbar facet joint
• Strengthen flexibility and stability of lumbar facet joint
• Improve waist soreness konmed

• Clinical Function: Configuration B trains the anterior core muscle chain — the rectus abdominis, obliques (internal and external), and transversus abdominis — through a seated bilateral trunk flexion movement against two-way hydraulic resistance. This configuration provides the anterior core training that counterbalances Configuration A's posterior core loading — together delivering the complete anterior-posterior trunk muscle balance that evidence-based spinal rehabilitation requires.

• Clinical Highlights of Configuration B:

1. Lumbar Facet Joint Stability A clinically specific application not mentioned for any other KS station — Configuration B explicitly strengthens the flexibility and stability of the lumbar facet joints through abdominal core activation. The lumbar facet joints — the small paired posterior joints connecting adjacent vertebrae — are a primary source of low back pain in facet joint syndrome, osteoarthritis, and spondylolisthesis. Abdominal core strengthening through Configuration B provides the anterolateral trunk muscle activation that reduces rotational and shear loading on the facet joints, directly addressing the biomechanical mechanism of facet-related low back pain.
2. Waist Soreness Management Configuration B is designed to improve waist soreness — the most common consumer-facing musculoskeletal complaint globally. Abdominal core weakness is a primary contributor to the postural lumbar hyperlordosis and disc loading patterns that produce waist soreness in sedentary and desk-worker populations. Progressive abdominal strengthening through Configuration B corrects this anterior pelvic tilt pattern, reducing the compressive disc and facet loading that causes chronic waist pain. konmed
3. Abdominal Organ Support Configuration B tightens the abdomen to avoid sagging internal organs — a benefit particularly relevant for postpartum rehabilitation, elderly patients with weakened abdominal wall tone, and post-abdominal surgery patients where restoration of abdominal wall function is a rehabilitation priority. konmed

Target Muscles — Configuration B:

• Rectus abdominis — primary trunk flexor; the "six-pack" muscle
• External oblique — trunk flexion and rotation; lateral core stability
• Internal oblique — deep trunk flexion and rotation; transversus abdominis layer support
• Transversus abdominis — deep abdominal corset; primary intra-abdominal pressure generator
• Hip flexors (iliopsoas, rectus femoris) — contribute to trunk flexion as synergists