Each subject was evaluated before , at the end ( T@ ) , and after @ months ( T@ ) from the conclusion of the rehabilitation treatment using the Fibromyalgia Impact Questionnaire ( FIQ ) , the visual analogue scale ( VAS ) , the Health Assessment Questionnaire ( HAQ ) , the fatigue severity scale ( FSS ) , the @-minute walking test ( @MWT ) , tender points count ( TPC ) , and spinal active range of motion .