Table 5.

Duration and difference of the welding trials of each subject and in total—Position PE

Subject	Duration with Exo	Duration without Exo	Difference	Notes
0301	00:25:50	00:19:47	−00:06:03
0302	00:22:37	00:18:40	−00:03:57
0303	00:17:31	00:13:24	−00:04:07
0304	00:17:15	00:16:35	−00:00:40
0305	00:13:51	00:15:25	+00:01:34	A
0306	00:12:37	00:13:42	+00:01:05	B
0307	00:16:23	00:15:41	−00:00:42
0308	00:19:13	00:18:06	−00:01:07
0309	00:19:27	00:15:21	−00:04:06
0311	00:16:50	00:14:18	−00:02:32
0312	00:21:19	00:17:29	−00:03:50
0313	00:18:24	00:14:38	−00:03:46
0314	00:16:35	00:19:27	+00:02:52
0315	00:19:42	00:16:12	−00:03:30
0316	00:20:48	00:20:23	−00:00:25
Mean	00:18:33	00:16:37	−00:01:57
Mean without 305, 306	00:19:23	00:16:55	−00:02:22

Note. A, During the trial without exoskeletons in PE Position subject 0305 exhibited such high levels of local fatigue within the shoulder muscles that two short breaks of approximately 2 min each were required. B, During the trial without exoskeletons in PE Position subject 0306 exhibited such high levels of local fatigue within the shoulder muscles that a short breaks of approximately 2 min were required.