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staff with regards to selection and making appropriate adjustments to an individual’s training<br />

program.<br />

2.5.1 Body Composition<br />

In team sports such as <strong>rugby</strong>, hockey and soccer, body composition plays is an important role<br />

in individual performance because excess body fat may influence speed, power and<br />

endurance. A number <strong>of</strong> investigations suggest that females participating in team sports report<br />

desirable changes in body composition (reduction in percentage body fat or skinfold thickness<br />

and or increase in lean muscle mass) during rigorous pre-season conditioning (Astorino, Tam,<br />

Rietschel, Johnson & Freedman, 2004; Clark, Reed, Crouse & Armstrong, 2003) primarily<br />

due to a high training volume (Burke, Gollan, & Read, 1986). During a competition season,<br />

<strong>players</strong> experience a minimal change in body composition (Granados, et al., 2008) as training<br />

emphasis is on tactical preparation for the upcoming match and conditioning sessions are<br />

predominately <strong>of</strong> a high intensity but for a short duration (Burke et al., 1986).<br />

2.5.2 Speed<br />

A study by Holmyard and Hazeldine (1993) on international <strong>rugby</strong> <strong>players</strong> showed that the<br />

greatest improvements in sprint performance occurred during the pre-season and the first half<br />

<strong>of</strong> the competition. No additional studies on pr<strong>of</strong>essional <strong>rugby</strong> <strong>players</strong> were found to support<br />

the above findings. This is in contrast to a study done on junior and senior <strong>rugby</strong> league<br />

<strong>players</strong> whereby there was no significant change in 10m and 40m times after a 14 week preseason<br />

training program (Gabbett, 2006). The progressive increase in training volume and<br />

41

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