Network Magazine spring 2014 | Page 66

was calculated and then divided into aerobic, anaerobic lactic, and alactic fractions. Body composition was assessed using dualenergy X-ray absorptiometry (DXA). Results: Key results for the energy contribution in the upper body are shown in Figure 1, and in the lower body in Figure 2. Discussion: The results indicate that the upper body WAnT relies more on the anaerobic lactic system than the lower body. The anaerobic lactic system contributed over 60 per cent of the energy for the upper body Wingate, whereas the lower body WAnT was approximately 48 per cent. The greater use of anaerobic lactic energy in the present study is offset by a lower contribution of the aerobic system (11 per cent) in the upper Figure 1. Energy contribution in the upper body Aerobic 11% PCr 27% Glycolytic 60% Figure 2. Energy contribution in the lower body Aerobic 16% PCr 36% Glycolytic 48% 66 | NETWORK SPRING 2014 body WAnT. The aerobic contribution to the lower body WAnT was 16 per cent and is similar to other studies which have reported values between 18-29 per cent, with values reported as high as 40 per cent in others. D