In December 2018 researchers from Spain published their review of the medical scientific literature to assess the effect of Pilates in women with breast cancer. A total of five studies were identified. Results showed that Pilates appeared to have a positive and significant effect on range of shoulder movement, quality of life, pain, and self-reported upper extremity function as well as mood and fitness. However, Pilates did not appear to be more effective than other exercise programmes for improving range of shoulder movement and quality of life.
Pinto-Carral A et al. Pilates for women with breast cancer: A systematic review and meta-analysis. Complement Ther Med. 2018 Dec;41:130-140