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Table 4 Summary of intervention characteristics across all studies

From: Functional electrical stimulation cycling exercise after spinal cord injury: a systematic review of health and fitness-related outcomes

Exercise prescription* Period: 16 (8–26) weeks
Frequency: 3 (2–5) times/week
Duration: 30 (10–60) min/session
Min cycle speed: 35 (10–50) RPM
Max cycle speed: 50 (35–60) RPM
Neuromuscular stimulation characteristics* Pulse width: 300 (200–500) µs
Amplitude: 140 (0–180) mA
Stimulation frequency: 35 (20–60) Hz
Intervention environment Research centre: 24 out of 92 studies**
Clinical centre: 19 out of 92 studies**
Home-based: 18 out of 92 studies
Environment NR: 27 out of 92 studies
Most frequent study locations USA: 44 out of 92 studies
UK: 9 out of 92 studies
Australia: 7 out of 92 studies
Canada: 6 out of 92 studies
Denmark: 5 out of 92 studies
The Netherlands: 5 out of 92 studies
  1. Further details on data extraction for each study: https://osf.io/u9mvx/
  2. NR not reported, RPM revolutions per minute
  3. *Period reported as Median (interquartile range). All other values reported as Mode (range). Extreme outliers of these parameters were excluded from this summary, i.e. periods of 37 months, 56 months or 0.4–7 years; frequency of seven times/week; duration of 100 min; max cycle speed of 20 RPM
  4. **4 studies took place in both research and clinical environments