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Weight-to-height ratio and aerobic capacity in 15-year-old male taekwondo martial artists.

Abstract

INTRODUCTION:

Martial arts are growing in popularity throughout the whole world. Their beneficial influence on physical development and fitness is noteworthy. Martial arts are an attractive form of physical recreation, constitute a perfect means for combating stress, and have a positive effect on general health, including during rehabilitation.

AIM OF THE STUDY:

The aim of this study is to assess physical development and aerobic capacity in boys who practice taekwondo and to determine the relationships between results of a fitness test and particular parameters of physical development.

MATERIAL AND METHODS:

Study participants comparised 51 boys aged 15 years who practiced taekwondo (with training experience ranging from 1 to 6 years). VolkovĀ“s modification of the Harvard Step Test was used to assess body height and body mass. BMI was also calculated. Centile charts were used to assess weight-to-height ratio and the level of measured parameters. BMI was analyzed according to the Cole classification system. Dispersion was calculated using a coefficient of variation. The Pearson product-moment correlation coefficient between selected parameters was also calculated.

RESULTS:

Most study participants had normal BMI, but 30% showed overweight and 13% showed underweight or emaciation. Weight-to-height ratio differed significantly from the norm in 33% of the boys when compared to centile charts. All participants had average aerobic capacity. However, when weight-to-height ratio was compared to the results of the Harvard Step Test, boys with normal body proportions performed much better in the test than boys with abnormal body mass (p<0.05).

CONCLUSIONS:

Study participants showed abnormal weight-to-height ratio mainly in terms of overweight. The boys had greater body height and body mass compared to the general Polish population. Aerobic capacity differed considerably between participants.

PMID:
25612815
[Indexed for MEDLINE]

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