Training system for massaging the fascia over various muscles of the body and made up of a holder for a fascia-training element, of a spherically designed fascia-training element and of a retaining apparatus, wherein: 1.1. the holder has at least the following: 1.1.1. at least three rotatable, fixed-location retaining elements, on which the fascia-training element rests so as to be freely movable in at least one direction of rotation, these retaining elements being designed in the form of retaining balls for a spherical fascia-training element, and 1.1.2. at least one retaining device (4b, 4c) on which the retaining elements are arranged, 1.2. wherein the fascia-training element is accommodated in the holder, 1.3. the holder with the fascia-training element inserted is positioned at a fixed location on an underlying surface and the user can move muscles relative to the holder along the fascia-training element, wherein the fascia-training element is rotated along therewith, but remains at a fixed location, and 1.4. a cover is provided, this cover protecting the retaining elements against contact with a user, wherein 1.5. the cover has an aperture through which less than half of the fascia-training element projects, so that the user can bring muscles into contact with the fascia-training element, wherein 1.6. the fascia-training element is secured against unintentional release in that less than half of the fascia-training element projects through the aperture, so that the widest part of the fascia-training element is located beneath the cover and the aperture is not large enough for the fascia-training element to be able to slip through, and 1.7. the retaining apparatus has a multiplicity of apertures into which the feet of the holder can be pushed by way of a rectilinear movement, wherein the retaining apparatus can be fitted on a vertical underlying fastening surface, so that the holder can be retained at any height by the retaining apparatus. 1.1. the holder has at least the following: 1.1.1. at least three rotatable, fixed-location retaining elements, on which the fascia-training element rests so as to be freely movable in at least one direction of rotation, these retaining elements being designed in the form of retaining balls for a spherical fascia-training element, and 1.1.2. at least one retaining device (4b, 4c) on which the retaining elements are arranged, 1.1.1. at least three rotatable, fixed-location retaining elements, on which the fascia-training element rests so as to be freely movable in at least one direction of rotation, these retaining elements being designed in the form of retaining balls for a spherical fascia-training element, and 1.1.2. at least one retaining device (4b, 4c) on which the retaining elements are arranged, 1.2. wherein the fascia-training element is accommodated in the holder, 1.3. the holder with the fascia-training element inserted is positioned at a fixed location on an underlying surface and the user can move muscles relative to the holder along the fascia-training element, wherein the fascia-training element is rotated along therewith, but remains at a fixed location, and 1.4. a cover is provided, this cover protecting the retaining elements against contact with a user, wherein 1.5. the cover has an aperture through which less than half of the fascia-training element projects, so that the user can bring muscles into contact with the fascia-training element, wherein 1.6. the fascia-training element is secured against unintentional release in that less than half of the fascia-training element projects through the aperture, so that the widest part of the fascia-training element is located beneath the cover and the aperture is not large enough for the fascia-training element to be able to slip through, and 1.7. the retaining apparatus has a multiplicity of apertures into which the feet of the holder can be pushed by way of a rectilinear movement, wherein the retaining apparatus can be fitted on a vertical underlying fastening surface, so that the holder can be retained at any height by the retaining apparatus.