Ahimsa Porter Sumchai, MD NSCA-CPT served for 10 seasons as an emergency physician for the San Francisco Giants MLB stadium operations, an experience that inspired her knowledge and expertise in rehabilitation, optimization and functional strength of the human shoulder. A former gymnast, Sumchai describes the pectoral girdle as "the most beautiful and exquisitely adapted set of joints in the human body." Using rigid, semi rigid and flexible suspension apparatus and assisted lift, shoulder rotational power, endurance and flexibility can be achieved for occupational and sports performance enhancement and aesthetic appearance.