Fibre-Specific Responses to Endurance and Low Volume High Intensity Interval Training: Striking Similarities in Acute and Chronic Adaptation
Figure 6
Effects of endurance (END) and low-volume high-intensity interval training (LV-HIT) on intramuscular glycogen and triglyceride storage.
A: Representative slides of glycogen (periodic acid-Schiff reaction) and intramuscular triglyceride (IMTG) content (Oil red O staining) Pre and Post training (see Fig. 3C for corresponding fibre-type slides for IMTG stain only). B. Fibre-type specific fold changes in glycogen content in type I, IIA and IIAX/IIX fibres. C. Fibre-type specific fold changes in IMTG content in type I, IIA and IIAX/IIX fibres. Bars represent 100 µm. AU, arbitrary units; µm, micrometre. *Significant (p<0.05) main effect of exercise.