Appendix I. Search strategy. Database: Ovid MEDLINE(R) < 1996 to November Week 3 2006 >
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Mobility devices to promote activity and participation: A systematic review
OBJECTIVE: To determine the effectiveness of mobility device interventions in terms of activity and participation for people with mobility limitations.
DESIGN: Systematic review. Search of 7 databases during the period 1996 to 2008.
METHODS: Controlled studies and non-controlled follow-up studies were included if they covered both baseline and follow-up data and focused on activity and participation. Study participants had to be aged over 18 years with mobility limitations. Mobility device interventions encompassed crutches, walking frames, rollators, manual wheelchairs and powered wheelchairs (including scooter types). Two reviewers independently selected the studies, performed the data extraction, and 4 reviewers assessed the studies’ methodological quality. Disagreements were resolved by consensus.
RESULTS: Eight studies were included: one randomized controlled trial, 4 controlled studies, and 3 follow-up studies that included before and after data. Two studies dealt with the effects of powered wheelchair interventions and the other studies with various other types of mobility device. Two studies were of high, internal and external methodological quality. Interventions were found to be clinically effective in terms of activity and participation in 6 studies. The results did not, however, give a unanimous verdict on the effectiveness of mobility devices in enhancing the activity and participation of mobility impaired people.
CONCLUSION: Interventions and outcome measurement methods varied between the studies; consequently, it was not possible to draw any general conclusions about the effectiveness of mobility device interventions. However, evidence was found that mobility devices improve users’ activity and participation and increase mobility. A lack of high-quality research hampers conclusions about effectiveness. More original, well-designed research is required.
Anna-Liisa Salminen, Åse Brandt, Kersti Samuelsson, Outi Töytäri, Antti Malmivaara
Table I. Contd.
Intervention and control intervention
Study design and follow-up time
All outcomes and instruments used in the study*
Uustal & Minkel
n = 20, male 80%, mean age 43.7 years (age range 27–67 years)
Dg: SCI (4 tetra, 9 para) 13, SCI with knee amputation 3, NMD 4
Mobility limitation: Manual wheelchair, powered wheelchair or scoter main means of mobility.
Inclusion criteria are very detailed, among other things: Persons residing in the community, currently using manual wheelchair or PWC or scooters with seat width 35.5 –50.8 cm as their primary means of mobility. Weight ≤ 113.6 kg. Able to operate a joystick, propel faster than walking speed and travel in a wheelie position for 3.05 m. Able to bend knees to fit on a regular footrest and to bend hips to sit in a wheelchair with a regular upright back. Willing to ride in the passenger seat of the van or bus when using private or public transport during the 2-week trial.
The Independence IBOT 3000 Mobility System (4 functions: standard, 4-wheel drive, stair climbing, balance).
Control: User’s own device.
Follow-up: 2 weeks
Activities: Telephone reporting of type and number of daily activities,
Safety: Telephone reporting falls and adverse effects
Effective use (independent functional mobility skills in a community environment, stair climbing): Community Drive Test, SSQ
ADL: activities of daily living; Dg: diagnosis; FIM: Functional Independence Measure; NMD: neuromuscular disease; NR: not reported; PAPAW: push-rim-activated power-assist wheelchair; PWC: powered wheelchair; RCT: randomized controlled trial; SCI: spinal cord injury.
*For abbreviations of instruments and scales used, see Table II.
Table IV. Contd.
mobility device: type, frequency of use
Activity and participation,
Mobility and mobility without personal assistance (baseline/follow-up)*
Quality of life and
User satisfaction (baseline/follow-up)*
Trefler et al.
Individually fitted manual wheelchair system, including cushion, back component, seat belt, position components.
Frequency of use: NR
Social functioning (SF-36) increased: Group A 83.8/ 89.4 (dropped to 77.3 after 6 months) and Group B 65.0/77.7 (p = 0.009).
Driving test: The speed in straight driving and straight driving with right hand turn increased in both groups (p = 0.03).
QoL in aim and conclusion, but not in instrumentation and in results.
Satisfaction (QUEST): Group A 3.72/4.65 and Group B 2.72/4.72
Trudeau et al.
The Merry Walker
Frequency of use: NR
Engagement increased: Experiment 63.97/control 40.45 (p = 0.009).
Interaction increased: Experiment 220.16 min/control 69.99 min (p = 0.014).
Sleeping decreased: Experiment 1.37 min/ control 19.59 min (p = 0.007).
Walking increased: Experiment 268.55 min/control 11.75 min (p = 0.000).
Uustal & Minkel
The Independence IBOT 3000 Mobility System, including assessment and training in use.
Frequency of use: All were full-time users.
Daily activities increased (SSQ): 162 activities with the IBOT 3000, 115 activities when using their own device (p < 0.003).
Community driving (SSQ): Total score improved overall (p < 0.001) and for subgroups (skilled manual wheelchair users, slow manual wheelchair users, power wheelchair users (p < 0.016 for all 3 groups).
Need for assistance: reported in detail for each subject, but no quantitative data at group level was provided. Need for assistance was reduced for all subgroups when using the stair climbing function (p < 0.016–0.031). In the other 2 functions, the results were not uniform between groups or items, but the general tendency was reduced need for assistance when using the IBOT 3000.
ES: effect size (mean change); NR: not reported; NS: non-significant; PAPAW: push-rim-activated power-assist wheelchair; PWC: powered wheelchair; S: significant; WC: wheelchair.
*For abbreviations of instruments and scales used, see Table II.
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1 exp mobility limitation/ (122)
2 exp locomotion/or motor activity/or running/or walking/ (80484)
3 dependent ambulation/ (4)
4 Patient Satisfaction/ (31800)
5 (independence or participation).tw. (67706)
6 (mobility or locomotion or ambulation).tw. (72677)
7 1 or 2 or 3 or 4 or 5 or 6 (240540)
8 self-help devices/ or exp wheelchairs/ (4438)
9 exp canes/ or exp crutches/ or exp walkers/ (855)
10 (wheelchair$ or rollator$ or cane? or crutch$ or walking stick? or walking frame?).tw. (4965)
11 ((mobility or locomot$ or ambulat$) adj2 aid?).tw. (269)
12 ((mobility or locomot$ or ambulat$) adj2 device?).tw. (336)
13 ((mobility or locomot$ or ambulat$) adj2 equipment?).tw. (34)
14 ((mobility or locomot$ or ambulat$) adj2 product?).tw. (34)
15 8 or 9 or 10 or 11 or 12 or 13 or 14 (8710)
16 exp “Outcome Assessment (Health Care)”/ (331992)
17 (outcome? or impact? or effectiveness or efficac$ or efficien$).tw. (1195841)
18 (score? or scoring or scale? or instrument?).tw. (429115)
19 (evaluation or assessment).mp. [mp = title, original title, abstract, name of substance word, subject heading word] (1120615)
20 16 or 17 or 18 (1670405)
21 7 and 15 (1890)
22 20 and 21 (676)
23 limit 22 to “all adult (19 plus years)” (519)
24 exp Clinical Trials/ (201963)
25 clinical trial.pt. (470405)
26 controlled clinical trial.pt. (78416)
27 randomized controlled trial.pt. (244089)
28 (random$ or rct?).mp. [mp = title, original title, abstract, name of substance word, subject heading word] (508839)
29 ((control$ adj5 trial$) or (control$ adj3 stud$)).mp. [mp = title, original title, abstract, name of substance word, subject heading word] (524742)
30 24 or 25 or 26 or 27 or 28 or 29 (935894)
31 exp consensus development conferences/ or exp consensus/ or exp consensus development conferences, nih/ (3030)
32 (consensus development conference or NIH consensus development conference).pt. (5507)
33 consensus.ti,ab. (57254)
34 congresses.pt. (46997)
35 31 or 32 or 33 or 34 (107442)
36 exp Evidence-Based Medicine/ (23641)
37 evidence-based.ti,ab. (18062)
38 36 or 37 (32283)
39 exp double-blind method/ or exp single-blind method/ (104550)
40 ((singl$ or doubl$ or trebl$ or tripl$) adj5 (blind$ or mask$)).ti,ab. (90959)
41 39 or 40 (126202)
42 Research design/ (47651)
43 technology assessment, biomedical/ (6058)
44 (technology adj2 assessment).mp. [mp = title, original title, abstract, name of substance word, subject heading word] (6885)
45 30 or 35 or 38 or 41 or 42 or 43 or 44 (1103690)
46 (volunteer? or placebo$ or control or prospective).mp. [mp = title, original title, abstract, name of substance word, subject heading word] (1632697)
47 (guideline$ or recommendat$).mp. [mp = title, original title, abstract, name of substance word, subject heading word] (193641)
48 exp Longitudinal studies/ (580632)
49 (followup or follow up or “over the past”).tw. (382405)
50 multicenter study.pt. (86943)
51 exp Cross-over studies/ (19853)
52 exp Comparative study/ (1387095)
53 Questionnaires/ (154750)
54 46 or 47 or 48 or 49 or 50 or 51 or 52 or 53 (3442233)
55 45 or 54 (3890733)
56 22 and 55 (457)
57 limit 56 to “all adult (19 plus years)” (362)
58 limit 57 to “review articles” (5)
59 57 not 58 (357)
60 *self-help devices/ or *wheelchairs/ (3041)
61 *canes/ or *crutches/ or *walkers/ (458)
62 *locomotion/ or *walking/ (9634)
63 60 or 61 or 62 (12943)
64 59 and 63 (165)
65 23 not 64 (354)
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