Fig 1.
Schematic diagram of exercise protocols and sampling times.
Fig 2.
Changes in hemoglobin and hematocrit parameters during the short protocol.
Rest: baseline values, sampling time before exercise. RER 0.9: median value 0.9 of the Respiratory Exchange Ratio (the aerobic range of the exercise). RER 1.0: median value 1.0 of the Respiratory Exchange Ratio (the anaerobic threshold of the exercise). Max: sampling time at the maximum exercise. R5’ and R30’: sampling times at the 5th and 30th minutes of the recovery period, respectively. The median, q1 and q3 quartiles, as well as the minimum and maximum values, are represented on the box plots. * Significant differences (p<0.05) from resting values.
Table 1.
Hemoglobin and hematocrit values during the long, dehydration protocol.
Table 2.
Changes in bodyweight, rate of weight loss (kg) and % of the total body mass during the long dehydration protocol.
Table 3.
Blood glucose and lactate concentration during the short protocol.
Table 4.
Blood glucose and lactate values during the long protocol.
Table 5.
Respiratory exchange ratio, VO2 and heart rate values during the long dehydration protocol.
Fig 3.
Power/VO2 and power/heart rate ratios as a function of time during the long dehydration protocol.
20’, 40’, …, 120’: averages of VO2 and heart rate parameters measured over 20-minute workout periods, respectively. VM: sampling time at the maximum power after 120 min preload. The median, q1 and q3 quartiles, as well as the minimum and maximum values, are represented on the box plots.
Fig 4.
Changes in major blood components influencing plasma osmolality during the long dehydration protocol.
Rest: baseline values, sampling time before exercise; 20’, 40’, …, 120’: sampling times at 20th, 40th, …, 120th minutes of the exercise, respectively. VM: sampling time at the maximum power after 120 min preload; R5’ and R30’: sampling times at the 5th and 30th minutes of the recovery period, respectively. A major part of the osmolality is given by the change of sodium ions. To better represent visually the changes in the other components, we used an exponential magnification of the values, however, the numbers on the graphs show the actual values. The height of the columns and the numbers at the top indicate the changes in osmolality values.