Neuromuscular activation of the knee and hip extensor muscles during high-intensity interval and moderate-intensity constant cycling

We aimed to test the hypothesis that the magnitude of differences in muscle activation of the knee and hip extensor muscles between high-intensity interval exercise (HIE) and moderate-intensity constant exercise (CE) would be greater for the gluteus maximus than for the quadriceps femoris muscle. Participants were 11 male middle- or long-distance runners. The HIE (4 sets, 4-min induration, performed at 80–85%VO2peak and followed by a 3-min period of cycling at