Since Spinophorosaurus is one of the most completely known basal sauropods, it is a good model for biomechanical studies that help to understand sauropod biology and the function of anatomical features.
Manipulation of the 3D model by Vidal and colleagues in 2015 showed that each of the frontmost 20 tail vertebrae could deflect up to 20º, and 8–10º in sideways flexion, before limited by the bone morphology.
The actual range of movement in a live animal would have been smaller, as the soft tissue as well as the large chevron bones would have been a limiting factor.
The first 20 tail vertebrae also became longer towards the end of the tail, as seen in diplodocids, and were powered by enlarged hypaxial musculature, as indicated by the large chevron bones and upwards-angled transverse processes in the first tail vertebrae.
Movement in the rear part of the tail was limited as the chevrons were overlapping, as is also the case in dromaeosaurids and ankylosaurids.
Together, these features of the tail may have been part of a specialised function, which is unknown.
Joger and colleagues argued in 2009 that the supposed spikes formed a thagomiser at the end of the tail that would have been used for defence against predators.

In 2017, John Fronimos and Jeffrey Wilson used Spinophorosaurus as a model to study how the complexity of neurocentral sutures (the rigid joint connecting the neural arch of a vertebra to its centrum) in sauropods may have contributed to the strength of the spine.
Sauropods reached their often enormous body sizes by both rapid and extended growth.
As long as an individual was growing, the neurocentral sutures were composed of cartilage to permit this growth.
Upon reaching full body size, this cartilage would turn into bone, closing the suture.
Cartilage, however, is much less resistant to forces that could potentially dislocate the neural arch, such as bending and torsion; these become especially relevant at large body sizes.
Sauropods and other archosauriforms counteract this structural weakness by increasing the complexity of the suture, meaning that the surfaces that connect the neural arch to its centrum had complex ridges and furrows that interlocked.
In Spinophorosaurus, suture complexity was most pronounced in the front part of the trunk, indicating that stresses were highest in this region, probably because of the weight of the long neck and rib cage.
Complexity became weaker towards the skull and the sacrum.
The orientation of the ridges allows for identifying the type of stress that affected the vertebra: In the neck vertebrae, ridges would mainly have prohibited dislocation of the neural arch in a front-to-back direction, while the ridges in the trunk vertebrae were more effective in impeding rotation.

In a 2018 conference abstract, Vidal used the virtual Spinophorosaurus skeleton to test hypothetical mating postures that have been proposed for sauropods that would involve a "cloacal kiss" (as is performed by most birds) rather than a male intromittent organ.
Such hypotheses include "leg over back", the male mounting from behind (with the female standing or lying down), as well as "backwards mating".
Postures that resulted in dislocation or osteological stops were not considered feasible.
The "leg over back" posture was rejected, since it would be impossible for a standing male to reach its leg over the back and hip of a crouching female, even if it was half the size of the male (and it is unknown if sauropods were sexually dimorphic in size).
The posture wherein the male mounted the female from behind while resting its front legs on the back of the female was possible (the tail was flexible enough to get out of the way), but even if the female was lying down, the cloacae would not approach each other close enough for a "cloacal kiss".
The "cloacal kiss" would only be possible through "backwards mating", wherein the male and female approached each other backwards and joined their cloacae with their tails flexed sideways, and movement of the legs would allow individuals of different sizes to mate this
Since Spinophorosaurus is one of the most completely known basal sauropods, it is a good model for biomechanical studies that help to understand sauropod biology and the function of anatomical features. Manipulation of the 3D model by Vidal and colleagues in 2015 showed that each of the frontmost 20 tail vertebrae could deflect up to 20º, and 8–10º in sideways flexion, before limited by the bone morphology. The actual range of movement in a live animal would have been smaller, as the soft tissue as well as the large chevron bones would have been a limiting factor. The first 20 tail vertebrae also became longer towards the end of the tail, as seen in diplodocids, and were powered by enlarged hypaxial musculature, as indicated by the large chevron bones and upwards-angled transverse processes in the first tail vertebrae. Movement in the rear part of the tail was limited as the chevrons were overlapping, as is also the case in dromaeosaurids and ankylosaurids. Together, these features of the tail may have been part of a specialised function, which is unknown. Joger and colleagues argued in 2009 that the supposed spikes formed a thagomiser at the end of the tail that would have been used for defence against predators.
In 2017, John Fronimos and Jeffrey Wilson used Spinophorosaurus as a model to study how the complexity of neurocentral sutures (the rigid joint connecting the neural arch of a vertebra to its centrum) in sauropods may have contributed to the strength of the spine. Sauropods reached their often enormous body sizes by both rapid and extended growth. As long as an individual was growing, the neurocentral sutures were composed of cartilage to permit this growth. Upon reaching full body size, this cartilage would turn into bone, closing the suture. Cartilage, however, is much less resistant to forces that could potentially dislocate the neural arch, such as bending and torsion; these become especially relevant at large body sizes. Sauropods and other archosauriforms counteract this structural weakness by increasing the complexity of the suture, meaning that the surfaces that connect the neural arch to its centrum had complex ridges and furrows that interlocked. In Spinophorosaurus, suture complexity was most pronounced in the front part of the trunk, indicating that stresses were highest in this region, probably because of the weight of the long neck and rib cage. Complexity became weaker towards the skull and the sacrum. The orientation of the ridges allows for identifying the type of stress that affected the vertebra: In the neck vertebrae, ridges would mainly have prohibited dislocation of the neural arch in a front-to-back direction, while the ridges in the trunk vertebrae were more effective in impeding rotation.
In a 2018 conference abstract, Vidal used the virtual Spinophorosaurus skeleton to test hypothetical mating postures that have been proposed for sauropods that would involve a "cloacal kiss" (as is performed by most birds) rather than a male intromittent organ. Such hypotheses include "leg over back", the male mounting from behind (with the female standing or lying down), as well as "backwards mating". Postures that resulted in dislocation or osteological stops were not considered feasible. The "leg over back" posture was rejected, since it would be impossible for a standing male to reach its leg over the back and hip of a crouching female, even if it was half the size of the male (and it is unknown if sauropods were sexually dimorphic in size). The posture wherein the male mounted the female from behind while resting its front legs on the back of the female was possible (the tail was flexible enough to get out of the way), but even if the female was lying down, the cloacae would not approach each other close enough for a "cloacal kiss". The "cloacal kiss" would only be possible through "backwards mating", wherein the male and female approached each other backwards and joined their cloacae with their tails flexed sideways, and movement of the legs would allow individuals of different sizes to mate this
Spinophorosaurus