Glycogen Utilization during Running: Intensity, Sex, and Muscle-Specific Responses

This study aimed to quantify net glycogen utilization in the vastus lateralis (VL) and gastrocnemius (G) of male (n = 11) and female (n = 10) recreationally active runners during three outdoor training sessions. Methods After 2-d standardization of carbohydrate intakes (6 g·kg−1 body mass per day), glycogen was assessed before and after 1) a 10-mile road run (10-mile) at lactate threshold, 2) 8 × 800-m track intervals (8 × 800 m) at velocity at V˙O2max, and 3) 3 × 10-min track intervals (3 × 10 min) at lactate turnpoint. Results Resting glycogen concentration was lower in the G of female compared with males (P
Source: Medicine and Science in Sports and Exercise - Category: Sports Medicine Tags: APPLIED SCIENCES Source Type: research