Get ready to challenge yourself with questions about sport and
the technology that could help drive champions to the top!
It is common for student-athletes to seek out a body composition goal or to ask “is my body fat too high?”
or “what’s right for my sport?” It is impossible to make a one-size-fits-all recommendation. Determining an individual target range may incorporate questions such as when she or he felt best? Performed best?
What would reflect a realistic rate of change? What would allow the athlete to make important lifestyle changes that are realistic for her/him?
It’s also no secret that among and even within sports, there is no one-size-fits-all method on how to eat to become an Olympic champion. Some athletes prioritise a high-protein, low-sugar diet, some are all about
the carbs and if you’re Michael Phelps, sometimes you need 10,000 calories a day to meet your nutritional goals.
The relationship between body composition and performance differs depending on the event. For sprint-based events there is a clear link between muscle mass and force production (Maughan et al, 1983).
In 98 competitive male sprinters, those athletes who were in the top third of 100m sprinting performance had significantly greater upper arm, thigh and calf girths indicating greater muscle mass than those in the slowest third (Barbieri et al, 2017).
Analysis of endurance running performance showed that calf girth can be a key component of running economy. Lucia et al. (2006) showed that calf girth in elite Eritrean runners, with excellent running economy, was smaller (30.9 ± 1.5 cm vs 33.9 ± 2.0 cm) than elite Spanish runners, who had a poorer running economy.
Dual energy X-ray absorptiometry is the most popular method for quantifying fat, lean, and bone tissues.
The energy levels used in DXA and their differential attenuation through the body allow the discrimination of total body adipose and lean tissue, in addition to bone mineral content and bone mineral density. DXA is fast and user-friendly for the subject and the operator.
Congratulations!