A randomised controlled trial of heavy shoulder strengthening exercise in patients with hypermobility spectrum disorder or hypermobile Ehlers-Danlos syndrome and long-lasting shoulder complaints: study protocol for the Shoulder-MOBILEX study

Table 1 Mechano-biological description of the progressive heavy shoulder strengthening programme (HEAVY) [28]

Week	X₁	X₂	X₃	X₄	X₅	X₆	X₇	X₉	X₁₀	X₁₁	X₁₂	X₁₃
1	50% 10 RM	10	3	60 s	3 per week	1 week	3 s shortening 0 s isometric 3 s lengthening	60 s	No	Full ROM	48 h	Yes
2	70% 10 RM	10	3	60 s	3 per week	1 week	3 s shortening 0 s isometric 3 s lengthening	60 s	No	Full ROM	48 h	Yes
3	90% 10 RM	10	3	60 s	3 per week	1 week	3 s shortening 0 s isometric 3 s lengthening	60 s	No	Full ROM	48 h	Yes
4	10 RM	10	3	60 s	3 per week	6 weeks	3 s shortening 0 s isometric 3 s lengthening	60 s	Yes	Full ROM	48 h	Yes
10	8 RM	8	4	90 s	3 per week	6 weeks	3 s shortening 0 s isometric 3 s lengthening	48 s	Yes	Full ROM	48 h	Yes
16	70% 8 RM	8	4	90 s	3 per week	1 week	3 s shortening 0 s isometric 3 s lengthening	48 s	No	Full ROM	48 h	Yes

X₁, load magnitude, repetition maximum (RM); X₂, number of repetitions; X₃, number of sets; X₄, rest in-between sets; X₅, number of sessions per week; X₆, duration of the experimental period; X₇, fractional and temporal distribution of the contraction modes per repetition and duration of one repetition; X₈, rest in between repetitions; X₉, time under tension (s); X₁₀, volitional muscular failure; X₁₁, range of motion (ROM); X₁₂, recovery time in between exercise sessions; X₁₃, predefined anatomical exercise form

ISSN: 1745-6215