Stepper Motor Recommendation for Leg Exoskeleton: 132kg-cm Torque, 16mm Shaft, >1A

I have designed a exoskeleton device for human leg to assist one leg deformed persons. calculated Torque value is 132 kg cm. Pls suggest me a stepper motor that suits the following specifications
Torque-132 kg cm
shaft length - 16mm
current rating >1 amp