FeasibilityThe overall dropout rate (13.6%) in the current training protocol showed improved feasibility from our previous study (30% dropout in a single session)With a change to a suspension vest harness that providedmore padding, even-load distribution (ie, it supported the wholetorso and thighs) and force damping, adverse events were substantially reduced (41.2% with the old harness vs 3.7% with the newsafety vest).