Visceral Manipulation was created by the  French osteopath, Jean-Pierre Barral. The classes are offered through the Barrel institute. I started studying this work in 93.

Visceral Manipulation is

1: gentle manual therapy that assesses the structural relationships between the viscera (organs), and their fascial or ligamentous attachments to the various systems in the body.

2: assists functional and structural imbalances throughout the body including musculoskeletal, vascular, nervous, urogenital, respiratory, digestive, eliminatory, neuroendocrine and lymphatic dysfunction.

VM can benefit:

Acute Disorders
Whiplash
Seatbelt Injuries
Chest or Abdominal Sports Injuries
Concussion
Traumatic Brain Injuries

Digestive Disorders
Bloating and Constipation
Nausea and Acid Reflux
GERD
Swallowing Dysfunctions

Women's and Men's Health Issues

Musculoskeletal Disorders
Somatic-Visceral Interactions
Chronic Spinal Dysfunction
Headaches and Migraines
Carpal Tunnel Syndrome
Peripheral Joint Pain
Sciatica
Neck Pain

Pain Related to
Post-operative Scar Tissue
Post-infection Scar Tissue
Autonomic Mechanisms

Pediatric Issues
Constipation and Gastritis
Persistent Vomiting
Vesicoureteral Reflux
Infant Colic

Emotional Issues
Anxiety and Depression
Post-Traumatic Stress Disorder

Classes Taken: VM 1, 2, 3, 4. NM1

New Manual Articular Approach

1: precise gentle engagement and soft tissue manipulation that applies a comprehensive approach to the treatment of the whole body and its relationship to the problematic joint, and not just the localized dysfunctional joint.

2: integrates all aspects of the joint including the nerve, artery, bone, capsule, and ligaments, as well as visceral and emotional connections.

NMAA can benefit:

Joint Pain
Limited Mobility
Joint Inflammation
Concussion & Traumatic Brain Injuries
Sprains
Tendinitis
Osteoarthrosis
Rotator Cuff Injuries
And more.

Classes I have taken : MAUE, MASP, MALE