Polar accurex plus heart rate monitor

On admission to the programme and regularly during follow-up, each patient performed a 1 km treadmill walk test as previously described (1k-TWT). 16 (link) Briefly, the test was carried out as follows: the participants were instructed to select a pace that they could maintain for 10-20 min at a moderate perceived exercise intensity using the Borg 6-20 scale. Participants began the test walking on the level at 2.0 km/hour, with subsequent increases of 0.3 km/hour every 30 s up to a WS corresponding to a perceived exertion of 11-13 on the Borg scale. The test was then started and the rate of perceived exertion was acquired every 2 min. WS was adjusted to maintain the selected moderate perceived intensity. Heart rate was monitored continuously during the test using a Polar Accurex Plus heart rate monitor (Polar Electro, Kempele, Finland). BP was monitored before and immediately after the test. No individual was excluded on the basis of his or her performance on the treadmill protocol. Subjects walking at a moderate speed of <3.0 km/hour performed the test over the distance of 500 m. The time to complete either 500 m or 1 km was recorded and average WS was calculated accordingly.