A new study was published on the International Journal of Sport Medicine validating the new Aquatrainer snorkel option for gas exchange measurement of swimmers with K4b2. This study aimed to test if a new AquaTrainer ® snorkel with 2 (SV2) or 4 (SV4) valves is comparable to a standard face mask (Mask) being valid for real time gas analysis under controlled laboratory and swimming pool conditions. The...
A new study was published this month on the Research in Sports Medicine Journal with a validation of Quark CPET with Mixing Chamber versus the Douglas Bag method. The validation study was performed by Dr Nieman's team at the prestigious Human Performance Lab of the Applachian State University (ASU). The study objectives were to validate the accuracy of COSMED’s Quark cardiopulmonary exercise...
A study with Quark b2 examines the impact of head-to-head competition on performance, pacing strategy and bioenergetics during a 2000-m cycling task. The study, by the University of Portsmouth together with the Deutsche Sporthochschule, aims to describe the bioenergetic basis for any changes in performance or pacing profile due to simulated head-to-head competition. Fourteen participants completed...
A new study using K4b2 shows the impact on training and performance of asimmetry in legs muscle desaturation in short-track speed skating. The study, by the Department of Biological Sciences of the University of Essex together with the British Olympic Medical Institute, analyses the impact of the restriction of muscle blood flow, due to the low sitting position in short-track speed skating, that...
A new validation study of K4b2 was presented during last ACSM show assessing both the validity and reliability of the system. 19 Caucasian endurance trained individuals and 30 adolescents from a rural primary school in Kenya completed maximal incremental running tests with COSMED K4b2. The Douglas bag method (DB) was used as the criterion for comparison. The study conclusion was that "K4b2 device...
