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. Author manuscript; available in PMC: 2018 Oct 23.
Published in final edited form as: J Int Soc Respir Prot. 2017;34(2):69–80.

Table II.

Tension (±SD) at 150% Extension for Various Age Ranges of Manufacturer ‘A’ Straps

Age range Tension (N
(years) N Upper ) Combine d
All 54 2.13 (0.20) 2.07 (0.17) 2.10 (0.19)
1−−3 12 2.10 (0.09) 2.15 (0.09) 2.13 (0.07)
5−−8 18 2.09 (0.27) 2.06 (0.19) 2.08 (0.23)
8−−9 12 2.20 (0.07) 2.16 (0.07) 2.18 (0.07)
9–10 12 2.13 (0.23) 1.95 (0.22) 2.04 (0.23)