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Table 5 Zone characteristics for microtechnology devices using specific g force zones

From: Quantifying the Collision Dose in Rugby League: A Systematic Review, Meta-analysis, and Critical Analysis

Device Studies Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6
SPI-Pro X Cummins and Orr [44] < 5.9 g 6.0–6.9 g 7.0–7.9 g 8.0–9.9 g 10.0–11.9 g > 12.0 g
SPI-Pro XII Cummins and Orr [26] < 5.9 g 6.0–6.9 g 7.0–7.9 g 8.0–9.9 g 10.0–11.9 g > 12.0 g
SPI-Pro XII Evans et al. [69] 7–9 g 9–11 g 11–13 g 13–15 g NR NR
SPI-Pro Lovell et al [59]; McLellan and Lovell [60]; McLellan et al [38]; Weaving et al. [67]. 5–6 g 6.01–6.5 g 6.51–7.0 g 7.01–8.0 g 8.01–10.0 g > 10.0 g
MinimaxX S4 Oxendale et al [62]. 2–3 g 3–4.5 g 4.5–6 g 6–8 g > 8 g NR
  1. NR not reported