Figure 3

Mean ± SEM EMG intensity for each workload between 25 and 90% $\dot{V}$ O _2max . (A) Muscles distal to the knee (TA, MG, LG, Sol; grey lines) show relatively little change in EMG intensity across workloads and muscles proximal to the knee (VM, RF, VL, ST, BF and GM; black lines) show relatively large increases in EMG intensity at workloads above 55%$\dot{V}$O_2max. (B) Mean (black lines) ± SEM (grey lines) across all muscles with muscle bellies distal (dashed line) and proximal (solid line) to the knee.