<http://webisa.webdatacommons.org/prov/268828098> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/334751598> . <http://webisa.webdatacommons.org/334751598> <http://www.w3.org/ns/prov#wasQuotedFrom> <flashcardmachine.com> . <http://webisa.webdatacommons.org/334751598> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/334751598> <http://www.w3.org/ns/prov#value> "Strengthening muscles such as the gluteals, abdominals, hamstrings, and upper back; and stretching others, such as the psoas, low back, and chest, can keep proper skeletal alignment more easily" .