Increased shoulder pain across an exercise session and subsequent shoulder exercise: a prospective cohort study

Table 2 Characteristics of 1401 exercise sessions performed during intervention (n = 79)

Number of exercise sessions in relation to the two intervention periods^a	Number of repetitions, mean (SD)	Progression level (range 1 to 3), mean (SD)	Resistance level (range 1 to 3), mean (SD)	Time until next exercise session (days), median (IQR)
Intervention weeks 1 to 7 (n = 1102)	124.4 (31.7)	2.1 (0.5)	2.0 (0.6)	2.7 (2.3 to 3.4)
Intervention weeks 8 to 15 (n = 299)^b	118.7 (35.0)	2.2 (0.4)	2.0 (0.7)	2.6 (2.3 to 3.4)

Abbreviations: IQR Interquartile range, SD Standard deviation
^aBetween 3 and 23 missing values for number of repetitions, progression level and resistance level were replaced by values from the prior or subsequent exercise sessions
^bThe intervention period ended after 8–15 weeks

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