The study aims to test the effectiveness of an Elevation Training Mask (ETM) on metabolic parameters, such as maximal oxygen consumption (VO2 max), Hemoglobin level (HB), and heart rate variability (HRV). Method: In an experimental approach, the participants (N=30) were divided into two (i)an experimental group doing HIIT training use Elevation Training Mask (ETM) and(ii) a control group involved in their ordinary training session. Experimental groups underwent 8 weeks of high-intensity cycle ergometer interval training using Elevation Training Mask (ETM). Pre and two post-test between four weeks of the test included the above parameters.
Results:The finding shows that there is a significant difference in the effect of Elevation Training Mask (ETM) on the (VO2 max), Heart Rate Variability (HRV) and the Hemoglobin level (HB) on the pre-test and post-test of Kedah Under 17 Footballers. Apart from that, there is also analysis showing that the control group (S) had only improved at a minimum level over the training period while the (HE) group had portrayed excellent improvement throughout training and testing. Impact: The study is to help the country improve the performance of athletes, this study is expected to inspire and spark ideas in the country's sports activists, especially coaches and national athletes. Conclusions: The eight-week HIIT+ Elevation Training Mask program improved cardiorespiratory fitness and hematological variables in all participants. Future research would be investigate further about the physiological changes in the use of the Elevation Training Mask in certain games.