Many thanks to Mark Yu for his input, patience and the effort he has expended learning and teaching biomechanics. I can not explain the benefits that I have received nor can I over emphasize my recommendation that you attend his presentation on the subject.

Look | Ask | Touch | Move | Treat | Tie

Bio mechanical considerations.

Look
Height and Weight ratio
Movement, loose or stilted
Shen or Spirit- Eyes, Presence
Breathing
Responsiveness
Symmetry check - Shoulders, Head and Spine (posture)
Angle of Clavicle - Level as possible.  Even and Low
Shoulder girdle sits on rib cage straight
Forward arms moved behind the back might compromise the structures in the front of the shoulder
Xiphoid Process
Skin type and any discolorations or irregularity
Different ties place marks in different places be sure you discuss this possibility.

Ask

S-A-M-P-L-E

Signs/Symptoms reported by the patient.
Allergies
Medications
Past Medical History
Last Oral Intake
Events leading to this episode of injury or illness.

Allergies, medications, fractures, bruises, sprains stains, too cold, cramps (cramp is a safe word! - gentle massage and reverse stretching restores circulation)

Ask Not are you allergic but rather what are you allergic to?  Then “what else”.
What medications do you take, what other medications are you taking…

Don’t use closed ended questions - most people will answer a closed ended question with the easy answer.
A "closed-ended-question" is one that can be answered with a "yes" or a "no."
"Are you having difficulty breathing?" is a closed-ended-question.

"How's your breathing?" or "How does your chest feel?" Remember to ask "open-ended-questions."

Top

Touch
Initial general palpation,
Overall muscle tone, flesh and skin condition- can be used as foreplay
"Shoulder spring test," Squeeze elbows together behind and hold
Feel for "Hot spots"
Angle of scapula, trapezius, mid and low back, thoracic outlet
Feel abdomen and Hara for Qi- look for temp and vitality

Move
"Mock up" of tie for new person,
Visually inspect anatomy in different positions
Rotate lower arm and wrist
Bend arms behind checking rotation of upper arm
Hands over head; straight and bent, Arms in box, Arms parallel behind
Feel for radial pulse when in held in positions
Prone leg bend, look for butt lift
Scapula "lift"

Treat
Loosen by massage with hand, foot or pole.
"Karate chops" and squeeze large muscles
Hips, buttock, shoulder, calf
Flex- Ribs, Lumbo

Tie
Choose position that fits the body best and is proper for the scene.
The more the Rigger understands the body, the more successful the bondage.