Date of download: 10/14/2017 Copyright © ASME. All rights reserved. From: The Influence of Modeling Separate Neuromuscular Compartments on the Force and Moment Generating Capacities of Muscles of the Feline Hindlimb J Biomech Eng. 2010;132(8):081003-081003-10. doi:10.1115/1.4001680 Figure Legend: Segments and joints of the feline hindlimb (lateral view of left hind limb). Joints are in bold font and segments are in italics. The metatarsalphalangeal joint is represented by the abbreviation MTP. The hip angle is defined as the anterior angle between the pelvis and thigh, the knee angle is the posterior angle between the thigh and shank, the ankle angle is the anterior angle between the shank and foot bones, and the MTP angle is defined on the plantar side of the paw and foot, from the plantar aspect of the foot to the plantar side of the digits.

Date of download: 10/14/2017 Copyright © ASME. All rights reserved. From: The Influence of Modeling Separate Neuromuscular Compartments on the Force and Moment Generating Capacities of Muscles of the Feline Hindlimb J Biomech Eng. 2010;132(8):081003-081003-10. doi:10.1115/1.4001680 Figure Legend: Knee moment generating capacity for the sum of the compartmental model (solid lines) and single muscle model (dashed lines). Biceps femoris had the largest differences of up to 4 N m and the single muscle representation overestimated the moment generating capacity of the hamstrings. Semimembranosus has a smaller difference of up to 0.4 N m; however, the single muscle representation underestimated the net moment generation about the knee. Various hip angles are also shown; however, hip angle did not seem to have a large effect on the differences in moment generation.

Date of download: 10/14/2017 Copyright © ASME. All rights reserved. From: The Influence of Modeling Separate Neuromuscular Compartments on the Force and Moment Generating Capacities of Muscles of the Feline Hindlimb J Biomech Eng. 2010;132(8):081003-081003-10. doi:10.1115/1.4001680 Figure Legend: Hip moment generating capacity for the sum of the compartmental model (solid lines) and single muscle model (dashed lines). Sartorius had negligible differences in hip flexion generation while both semimembranosus and biceps femoris had differences between the compartmental and single muscle representations. As opposed to Fig. , knee angle did have an effect on the differences between the two representations.

Date of download: 10/14/2017 Copyright © ASME. All rights reserved. From: The Influence of Modeling Separate Neuromuscular Compartments on the Force and Moment Generating Capacities of Muscles of the Feline Hindlimb J Biomech Eng. 2010;132(8):081003-081003-10. doi:10.1115/1.4001680 Figure Legend: Operating ranges of the biarticular muscles with neuromuscular compartments crossing the hip and knee (BF, SM, and SAR). Muscle force is normalized to peak muscle force (FoM) and fiber length is normalized to optimal fiber length. Note that a muscle at a length of LoM(LM/LoM=1) has a force of FoM. The compartments of sartorius operate on the same range of the force-length curve while the anterior compartment of semimembranosus operates at the beginning of the descending portion of the force-length curve and the posterior compartment operates on the plateau as well as the descending portion of the force-length curve. Finally, the compartments of biceps femoris operate over the same ranges; however, the medial and posterior compartments operate over extended ranges. Also depicted are the single muscle representations of these three muscles in bold.