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Latest Research

Elite racewalkers take part in AIS glycogen loading study 


Periodised diet preferable to low carbohydrate, high fat diet

Louise Burke and researchers from the AIS, Australian Catholic University and global nutrition community investigated the effects of three different diets on metabolism and performance.  World-class endurance athletes followed a ketogenic low-carbohydrate high-fat diet (LCHF), high carbohydrate diet or a periodised diet with phases of low and high carbohydrate availability.

In contrast to training with diets providing chronic or periodised high-carbohydrate availability, adaptation to the typical LCHF diet negated performance benefits in elite endurance athletes.

Low Carbohydrate, High Fat diet impairs exercise economy and negates the performance benefit from intensified training in elite race walkers  

Gelatin supplementation could benefit injury prevention and tissue repair

Greg Shaw collaborated with UC Davis College to investigate the effect of gelatin supplementation on collagen synthesis after high-impact exercise.

The results indicate that adding gelatin to an intermittent exercise program improves collagen synthesis and could play a beneficial role in injury prevention and tissue repair.

Vitamin C–enriched gelatin supplementation before intermittent activity augments collagen synthesis

Weight loss and regain strategies in combat sports

Reid Reale completed a series of studies investigating weight-making strategies in combat sports. Combat sport athletes acutely reduce body mass prior to weigh-in to gain a size/strength advantage over smaller opponents. Few studies have investigated these practices in combat athletes. Winners in an International judo competition showed a greater re-gain in body mass post weigh-in than losers. Findings were different for elite boxers.

Weight Re-gain is Not Linked to Success in a Real Life Multi-Day Boxing Tournament

Regain in Body Mass After Weigh-In is Linked to Success in Real Life Judo Competition

Acute Weight Loss Strategies for Combat Sports and Applications to Olympic Success

Influences on body composition measurements using DXA

Julia Bone is completing a series of studies investigating the use of DXA to assess body composition. DXA is increasingly used to measure body composition in athletes and it is important to understand how to standardise measurements to achieve meaningful results. Julia’s research indicates that changes in factors such as muscle glycogen and water can influence DXA estimates of lean mass. This information needs to be considered when interpreting results from DXA scans.

Manipulation of Muscle Creatine and Glycogen Changes DXA Estimates of Body Composition

DXA Estimates of Body Composition and Carbohydrate Loading

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