Introduction: Due to a lack of research previous related studies in dance which compares non-criterion methods, the purpose of this study is to compare non-criterion methods to determine inter-changeability of ballet dancers. A secondary purpose was to assess whether a correlation occurred between estimating percentage body fat in the selected methods and BMI in young female ballet dancers.
Methods: 34 female ballet dancers (18 ± 2 yrs, 162 ± 6.4 cm, 53.3 ± 6.4 kg) had height, weight, SKF, and BIA measurements taken. 2 SKF and 2 BIA equations were used to predict %BF.
Results: Significant correlations between Lukaski et al., and Jackson et al (r = 0.238, p< 0.05) and between Durnin & Wormsley and Yannakoulia et al (r = 0.223, p<0.05). No significant correlations were found between the remaining equations (r = 0.157, p>0.05, r = 0.175, p>0.05). Significant correlations between BMI and Durnin & Wormsley and Yannakoulia et al., were found (r = 0.220, p<0.05, r = -0.153, p<0.05).
Conclusions: The study demonstrates that BIA and SKF can be used interchangeably with ballet dancers with each other, but only when the corresponding equations are used, to estimate %BF in young female ballet dancers. Secondly, it was found that BMI can be used interchangeably with Durnin and Wormsley SKF equation, and Yannakoulia et al BIA equation to predict %BF in young female ballet dancers.
Acknowledgements
I would like to thank all the dancers who volunteered to participate in this study.
I would also like to thank Janine Johnson for allowing me to use her dance studio and pupils.
I would like to acknowledge Kevin Lamb for supervising my dissertation.
Declaration
I declare that this work is original and is my own, and has not been previously submitted in support of a Degree, qualification or other course.
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Table of Content
ABSTRACTII
ACKNOWLEDGEMENTSIV
DECLARATIONV
LIST OF HE FIGURESVIII
LIST OF THE TABLESIX
CHAPTER 1: INTRODUCTION1
Background1
Introduction3
CHAPTER 2: LITERATURE REVIEW11
Nutrition12
Physiological Demands15
Body composition16
Skinfold Measurements (SKF)19
Bioelectrical Impedance Analysis (BIA)22
Body Mass Index (BMI)24
Physically Educated'26
Conclusion32
CHAPTER 3: METHODS34
Participants34
Design34
Procedures35
Anthropometry36
Skinfold Measurements36
Bioelectric Impedance Analysis37
Statistical analysis38
CHAPTER 4: RESULTS40
BMI42
CHAPTER 5: DISCUSSION AND CONCLUSION45
Findings45
Conclusion48
REFERENCES50
PRIMARY REFERENCE50
SECONDARY REFERENCE61
APPENDICES63
APPENDIX 1: ETHICAL APPROVAL63
List of he Figures
Figure 1: The scatter-plot shows there is a significant difference in estimating %BF between D&W and Luk (r = 0.157, p<0.05).
Figure 2: The scatter-plot shows there is no significance difference in estimating %BF between luk and J&P (r = 0.238, p> 0.05).
Figure 3: The scatter-plot shows there is no significance difference in estimating %BF between D&W and Yan (r = 0.223, p>0.05).
Figure 4: The scatter-plot shows there is significance difference in estimating %BF between J&P and Yan (r = 0.175, p<0.05).
Figure 5: The scatter-plot shows there is a non-significant difference between D&W and BMI (r = 0.220, p>0.05).
Figure 6: The scatter plot shows there is a significant difference between J&P and BMI (r = 0.065, p<0.05).
Figure 7: The scatter-plot shows there is a significant difference between Luk and BMI (r = -0.062, p<0.05).
Figure 8: The scatter-plot shows there is a non-significant difference between Yan and BMI (r = -0.153, p>0.05).