Table 1 Pulmonary function testing procedure and timing of the testing execution
From: Swimming-induced changes in pulmonary function: special observations for clinical testing
Timing | Action |
|---|---|
1 h 20 min before testing | Preparation of testing equipment. Switch on the K4b2 analyzer |
30 min before testing | System calibration, flow calibration, special delay calibration |
15 min before testing | Study subject arrives ready to swim with swimming gear on, Explaining the testing procedure to the subject Filling preliminary information on testing program |
Starting testing | Spirometry testing on land, study subject in sitting body position |
2.30 min after starting testing | Maximal voluntary ventilation testing on land and immediately transition into water prone swimming body position in water |
5 min after starting testing | Spirometry testing in water. The study subject float in prone swimming body position. The swimmer has a handgrip on the side of pool deck and keeps the face immersed. The swimmer wears a special swimming nose-clip and keeps a pull-buoy between tights to maintain prone swimming body position and prevent feet from sinking |
7.30 min after starting testing | Maximal voluntary ventilation testing in water |
10 min | Swimming, study subject performing programmed swimming exercise, which included 100 m freestyle at competition speed intensity in the end. Ventilation during the test swimming was measured with breath-by-breath method. |
0 min after swimming | Spirometry testing in water environment the same way as before swimming |
2.30 min after swimming | Maximal voluntary ventilation testing in a water the same way as before swimming |
5 min after swimming | Spirometry testing on land, study subject in sitting body position the same way as before |
7.30 min after swimming | Maximal voluntary ventilation testing on land |
10 min after swimming | Finishing measurements and removing the testing equipment |