This exercise is also called Chest lift , the neck curl is a fundamental exercise in Pilates method.
This exercise strengthen the abdominal muscles , teaches correct recruitment of all the internal support system.
Muscle focus :
Abdominal muscles
Objectives :
to strengthen the abdominals
to develop pelvic stability
Reference: Serap Erbas
To reach Serap on you tube channel the link is below;
https://www.youtube.com/channel/UCrCF--SqjEnuXyA13Rmlx0Q