One of the peculiarities of fitness gyms is the succession of people who tr
y and follow a training programme and are not able to stick to it. Based on
ethnographic research I try to account for this phenomenon. For regular pa
rticipants, fitness training is not only important for the kind of body it
will hopefully produce in the long run, but also for how it is lived in the
present. I will try to show that the way gyms are locally organized - spat
iality and interaction rules during training - is as important for exercise
adherence as the culturally shaped ideals which sustain fitness culture. I
n particular, gyms need to provide not only for the substantial body object
ives pursued by clients but also for their expressive demands. They need to
offer not only competent trainers, but also training spaces where clients
may feel secure enjoying a measure of discretion and sober informality. Sti
ll, the correct attitude towards fitness work-out is not a passive lack of
desire. Fitness work-out asks for the demonstration of a particular kind of
desire: each client can and must learn to concentrate only on him or herse
lf in the attempt to improve his or her own exercise performance. Elaborati
ng on my fieldwork, I propose that the more participants in fitness measure
themselves against each other and a fantasized body ideal the less will be
their capacity to continue attending the gym regularly. The more the desir
ed objectives are perceived as vital, the more participants will feel inade
quate, and the more difficult will be for them to concentrate on performing
each and all movements and, consequently, to construct and continue a fitn
ess programme. The possibility of filtering body ideals while pursuing an a
ctivity which is aimed at their achievement is decisive in protecting indiv
iduals from the dangerous exposure of their inadequacies. I conclude on the
nature, importance and consequences of this paradoxical construction of ex
perience.