Fig. 3From: Physiological and psychological neck load imposed by ballistic helmets during simulated military activitiesEffects of helmets and postures (resting, moving boxes, prone shooting) on the subjective neck load and neck pain. They were rated with a visual analogue scale from 0 (no neck load), to 10 (intolerable neck load) or a scale from 0 (no pain) to 10 (intolerable neck pain). *P < 0.05 and **P < 0.01 indicate the posture effects versus sitting; #P < 0.05 and #P < 0.01 indicate the posture effects versus horizontal lifting;†P < 0.05 indicates the helmet effects versus NH; §p < 0.05 indicates the helmet effects versus LH. All significances were verified by non-parametric statistics: Friedman test was used to identify the group differences with a Wilcoxon test as a post-hoc testBack to article page