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. 2017 Jan 11;12(1):e0169519. doi: 10.1371/journal.pone.0169519

Fig 1. Schematics of the loading device (A) and loading signals (B and C).

Fig 1

Four loading protocols: (1) 36 continuous load cycles/day; (2) 216 continuous load cycles/day; (3) 1200 continuous load cycles/day; (4) 216 cycles/day with 10 sec rest inserted between every 4 load cycles.