Pinto and colleagues, for a walking level from 55 to 65% HRmax, estimated a reduction of fatigue in post treatment. Supervised exercise show greater adherence to short-term practice at home. However, there are a growing number of studies suggesting a practice at home, the most activity being walking. The authors do not justify the choice of the type of supervision. But physical activity with a professional and / or group in a specific place definitely has different effects in relation to practice at home. Segal and his colleagues in 2001 for the first time wished to compare the two types of supervision. The results are in favor of supervised exercise. The training was identical. However, to answer the five weekly sessions requested, the patient group had to complete two supervised practice sessions at home. So, the investigators really can not quantify the difference in impact between home practice and supervised practice. In a meta-analysis, Velthuis and colleagues conclude a significant difference in fatigue during treatment for a supervised aerobic exercise against a home that does not show significant difference. If the training is the same in both situations, the investigators should not find any difference in physiologic responses. However, the psychological impact can vary from one situation to another.