Tori's inability to maintain his/her leading leg in an extended parallel position puts him/her at risk of the roll-over counter to kesa gatame. Tori's trail leg should be flexed at the knee with his/her knee touching the ground. Knee flexion allows for tori trail leg to counter a sit-up escape via foot plantar-flexion as this orientation causes tori's foot to be pointed rearwards. Maintaining tori's knee close to the mat prevents the initiation of the leg hook (niju ashi garami) escape; this lowers tori's center of gravity and also prevents the roll over escape. A common mistake is for tori to have his/her knee pointed upwards (in a squat) in an attempt to increase the amount of pressure exerted on uke. This causes more weight to be loaded onto uke's trunk at the expense of overall stability of the position as it increases tori's center of gravity (increasing susceptibility to the roll over escape) and significantly increases the susceptibility to the leg hook escape due to knee exposure. Escapes Elbow Pullout Escape: Tori escapes by pulling out his held elbow and attempts to take uke's back or pull uke backwards into yoko-shiho-gatame. Roll-over Escape: Tori clasps uke's trunk and bridges into uke, causing a forward shift of uke's weight off tori's abdomen. This is followed by a quick change in torque in the opposite direction, pulling uke across tori's shoulders or upper chest, landing in mune gatame. Leg Hook (niju ashi garami) Escape: Tori turns his lower body to face uke in an attempt to hooks uke's thigh with his leg. If successful, tori can either hold uke in niju-ashi-garami and wait to be stood up or use uke's hooked thigh as leverage and roll to take uke's back. Sit Up Escape: As uke circles towards tori's head to tighten kesa-gatame or avoid the leg hook counter, tori can use his/her legs as a counterweight to rapidly sit up and reverse uke into his/her own kesa-gatame. The kuzushi for this move stems from uke's rapid movement towards tori's head and would not otherwise be possible unless there is a significant difference in weight. Submissions Kesa-Ashi-Gatame, Double Leg Gatame Arm Bar Single Leg Gatame Arm Bar And with some transitioning, the arm held is at risk of many other locks. Also one step away is Kata-Gatame. Although categorized as a mat hold, it is also a choke if enough pressure is