GLOSSARY

Carbohydrate Supercompensation aims to increase glycogen storage before a relevant event through coordinated carbohydrate intake and training adjustment. Protocol details and tolerance determine how the strategy is implemented.

Carbohydrate loading aims to increase glycogen stores before an event in which those stores may limit performance. Higher carbohydrate provision is usually combined with reduced training demands during preparation. Classical depletion-heavy protocols and more moderate approaches differ, and a severe depletion phase is not universally required. Extra glycogen is accompanied by water, so temporary body-mass gain is expected. A practiced, tolerated plan matters more than copying a protocol without considering event duration and the athlete's usual intake.

Muscle and liver glycogen have related but different roles. Muscle glycogen supplies the muscle in which it is stored, while liver glycogen helps support blood glucose. An overnight fast can reduce liver carbohydrate availability without producing the same depletion in every muscle. Starting concentration, recruited fibers and exercise demand affect use. An estimate of total stores does not directly describe the availability of every local glycogen pool during a specific movement.

Glycogen use depends on exercise intensity, duration, recruited muscles, training status and starting availability. A decline in one sampled muscle or fiber population should not be assumed to represent all stores throughout the body. Carbohydrate feeding can support blood glucose and performance during suitable exercise, but it does not guarantee uniform sparing of muscle glycogen. Depletion is a change in a finite pool, whereas depletion rate specifies the speed over an observation interval.

For example, before a sufficiently long race, an athlete can practice increasing carbohydrate while training demand falls. Select familiar, tolerated foods and anticipate some glycogen-associated water gain. The aim is to improve starting fuel availability for the relevant event, not to produce the lowest possible scale reading on race morning.

Carbohydrate requirements vary with the intensity, duration and importance of the work. Daily intake relative to body mass describes a different quantity from an intake rate during exercise, which is commonly expressed per hour. A larger daily target does not mean the same amount should be consumed in every session. Match supply to the schedule, starting stores and practical tolerance, and distinguish grams eaten from grams absorbed or oxidized when discussing a fueling plan.

Gut training means practicing the intended food and fluid strategy during suitable training sessions and progressing according to tolerance. Repeated exposure may improve comfort or handling, but symptom improvement does not directly prove increased transporter expression in an individual. Glucose and fructose transport involve different proteins and their adaptation is a specific research question. Record actual intake, conditions and symptoms. A very high intake used successfully by one athlete should not be treated as the starting requirement for everyone.

Body mass includes fat, lean tissues, water, glycogen and material in the digestive tract. A rapid increase after carbohydrate-rich eating or a fall after a sweaty session does not establish fat gain or loss. Weighing under comparable conditions and examining a trend can reduce misinterpretation. Interpret repeated measurements alongside food, fluid, bowel habits and training. A meaningful change in tissue mass usually requires more evidence than a difference between two isolated readings on a bathroom scale.