Table 7 Frequency of each 'type' of questionnaire

Ability/capacity to perform physical activities*

25

[21, 25–30, 37, 41, 42, 45, 47, 48, 53, 54, 70, 72, 82, 86, 89, 91, 97, 99, 100, 113, 114]

Frequency/categorised amount of time performing physical activities (no quantification of physical activities)

13

[19, 32, 40, 56, 61, 67, 65]a** [87, 93, 103, 108, 109, 116]

Quantification of physical activities: Total time/duration/diary

9

[30, 36, 44, 46, 74, 65]b** [102, 110, 119]

Degree/level/frequency of limitations/symptoms/difficulty in performing physical activities

35

[20, 23, 33, 38, 39, 49, 50, 55, 58, 60, 64, 67–69, 73, 75–77, 79–81, 84, 85, 87, 90, 94–96, 99–101, 105, 107, 111, 115, 117]

Impact of symptoms/disease/functional impairment on physical activities

7

[16, 17, 22, 52, 57, 66, 106]

Self-efficacy/confidence in performing physical activities

7

[18, 24, 35, 80, 92, 104, 112]

Degree of dependence/independence

5

[43, 59, 63, 88, 98]

Graduation of needed help/amount of assistance needed in performing physical activities

2

[51, 62]

Excluded from categorisation because we did not have access to the full original questionnaires and therefore had too little information to categorise them.

[31, 34, 71, 78, 83, 118]