Table 1 Search strategy for MEDLINE (via PubMed)

#1 condition

((breast neoplasms[MeSH]) OR ((breast[MeSH] OR breast diseases[MeSH]) AND neoplasms[MeSH])) OR ((Breast[tiab] OR mammary[tiab]) AND cancer*[tiab] OR carcinoma*[tiab] OR tumour*[tiab] OR malignant*[tiab] OR neoplasm*[tiab]))

#2 cancer treatment

((chemotherapy[MeSH]) OR anthracycline[MeSH]) OR trastuzumab[MeSH]) OR Antibodies, Monoclonal, Humanized[MeSH]) OR (chemotherap*[tiab] OR anthracycline*[tiab] OR trastuzumab[tiab] OR herceptin[tiab]))

#3 exercise

((Exercise training[MeSH]) OR Resistance training[MeSH]) OR Exercise therapy[MeSH]) OR ((Exercise[tiab] OR training[tiab] OR sport*[tiab]) AND aerobic*[tiab] OR resistance*[tiab] OR strength*[tiab] OR weight [tiab] OR endurance*[tiab]))

#4 study type

((randomized controlled trial[pt]) OR controlled clinical trial[pt]) OR (randomized[tiab] OR randomly[tiab] OR trial[tiab]))