“…There are 9 exercise modalities mentioned in 37 of the references attributing exercises to a BPS-R intervention programme: strength ( 23 – 25 , 35 – 51 ), endurance ( 24 , 25 , 37 , 38 , 42 , 43 , 47 , 48 , 50 – 52 ), stretching and mobilizations ( 23 – 25 , 37 , 38 , 41 – 3 , 47 – 49 , 53 ), stability and motor control ( 23 , 25 , 38 , 41 , 49 , 50 , 53 , 54 ), relaxation exercises ( 24 , 36 , 38 , 45 , 49 , 50 , 55 , 56 ), postural training ( 23 , 43 , 45 , 53 – 55 ), proprioception ( 36 , 38 , 45 , 49 , 55 ), lumbopelvic exercises ( 34 , 44 , 53 ), and hydrotherapy ( 25 , 38 , 42 , 49 ). Some of the references did not specify the exercise therapy used during the programme ( 51 , 57 – 68 ).…”