Figure 1. The Pdi of each of the 16 performed maneuvers, ranging from maximal pressures on the left to resting pressures on the right. Columns with similar in-fill were not significantly different from each other, the different in-filled columns indicate significantly different groups, (p < 0.05). Note: 1 kPa = 7.5 mmHg or 10.2 cm H2O. BLL = bent-knee leg lifts, DLL = double leg lift, SLL = single leg lift