See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/259321633 Anthropometry, Somatotypes, and Aerobic Power in Ballet, Contemporary Dance, and DanceSport Article in Medical problems of performing artists · December 2013 DOI: 10.21091/mppa.2013.4041 · Source: PubMed CITATIONS READS 32 3,017 6 authors, including: Helena Liiv Matthew Wyon University of Tartu University of Wolverhampton 5 PUBLICATIONS 106 CITATIONS 151 PUBLICATIONS 2,364 CITATIONS SEE PROFILE SEE PROFILE Meeli Saar Mäestu Jarek University of Tartu University of Tartu 39 PUBLICATIONS 500 CITATIONS 141 PUBLICATIONS 2,460 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Poetics Preparation in the Performing Arts and the BR-UK Dance Medicine & Science Network View project Estonian Children Personality Behaviour and Health Study View project All content following this page was uploaded by Matthew Wyon on 23 January 2015. The user has requested enhancement of the downloaded file. Anthropometry, Somatotypes, and Aerobic Power in Ballet, Contemporary Dance, and DanceSport Helena Liiv, PhD,1 Matthew A. Wyon, PhD,2,3 Toivo Jürimäe, PhD,1 Meeli Saar, PhD,1 Jarek Mäestu, PhD,1 and Jaak Jürimäe, PhD1 This study compared anthropometric variables, somatotypes, and aerobic capacity between three groups of dancers: classical ballet dancers (M 33, F 56), contemporary dancers (M 28, F 109), and dancesport dancers (M 30, F 30). The assumption was that different functional requirements should produce differences in the anthropometric and aerobic capacity variables among the three groups. Anthropometric data for body mass index (BMI) and somatotypes were measured. Body fat percentage was measured by dual-energy x-ray absorptiometry. Maximal oxygen consumption and aerobic power were measured during an incremental treadmill test until exhaustion. Dancesport athletes were taller compared with same gender contemporary dancers (p<0.05). Female ballet dancers had a lower body mass and BMI compared with their contemporary dance and dancesport equivalents (p<0.001). There was significant difference between dance styles in endomorphy (F2,221 = 8.773, p<0.001) and mesomorphy (F2,221 = 21.458, p<0.001) scores. Dancesport dancers had significantly greater VO2max values (p<0.01). It was concluded that female contemporary dancers are generally more muscular than their ballet counterparts, while dancesport dancers are taller and heavier, less muscular, with slightly greater adioposity compared to the classical ballet dancers. Ballet dancers had the lowest body fat percentage, weight, and BMI values. Dancesport dancers had greater aerobic capacity than the ballet dancers. Based on this study, we conclude that dancers in these three styles differ in some aspects of anthropometric variables, somatotypes, and aerobic capacity, but we cannot say is it because of the training or selection or both. Med Probl Perform Art 2013; 28(4):207–211. D ancers face the difficult task of combining the aesthetic and physical components of their performance. They have been referred as “performing”23 and or “aesthetic”35 athletes who remain subject to the same unyielding physical laws as in other athletes.2 Dance training is a long process of physical, intellectual, and psychological preparation through physical exercise, often beginning in childhood and continuing until retirement.1 From the 1Faculty of Exercise and Sport Sciences, University of Tartu, Tartu, Estonia, and 2Research Centre for Sport Exercise and Performance, University of Wolverhampton, Walsall, UK; and 3National Institute of Dance Medicine and Science, UK. Supported by the Estonian Ministry of Education and Science target financed grant 0489; by the Doctoral School of Behavioral, Social and Health Sciences created under the auspices of European Social Fund; and by Estonian Science Foundation (ESF) DoRa 6 and DoRa 8 program. Address correspondence to: Dr. Helena Liiv, Faculty of Exercise and Sport Sciences, University of Tartu, Jakobi 5, Tartu 51014, Estonia. Tel +372 5291059, +372 737 5372, fax +372 737 5373. liivhelena@gmail.com. © 2013 Science & Medicine. www.sciandmed.com/mppa. For optimal performance, dancers must be experts in the aesthetic and technical sides of their art, psychologically prepared to handle the stress of critical situations, and free from injury. They must also be physically fit.24 It has been suggested that functional adaptation due to different training regimens may be responsible for the determination of some anthropometric15 and physiological32 changes. The number of hours per day and the days per week that a specific physical activity is performed may result in systematic changes in body composition.4 Hamilton,19 on the other hand, has said that “it is unclear whether ballet selects the perfect body, creates it, or both.” To our best of knowledge, there is no study done that has compared anthropometric variables, somatotypes, and aerobic capacity between classical ballet dancers, contemporary dancers, and dancesport athletes. Dancesport is defined as partner dancing between a man and woman combining as a couple. It has developed from ballroom dances performed by couples. Currently recognized disciplines in international style dancesport are standard dances, Latin American dances, and “ten dance” disciplines. Contemporary dance emerged at the beginning of the 20th century as a breakaway from the rigid constraints of classical ballet, which itself started as a performance art in the French courts in the 16th and 17th century.2 A previous study has found no difference in VO2max between ballet, contemporary, jazz, and character dance students.13 Based on previous research2,25 that reported VO2max values, we can assume that dancesport athletes have higher aerobic capacity than ballet and contemporary dancers. However, successful ballet dancers were taller and thinner than modern dancers, although these differences were not significant.16 The majority of previous studies have focused on dancers in one specific dance style, such as ballet, contemporary, or dancesport. It has been suggested that ballet, contemporary, and dancesport dancers performance would benefit from a good aerobic capacity,1,22,25 and that performance of ballet and contemporary dancers benefits from physiological capabilities such as muscular strength and power.7,22 Little published data exist on dancers’ somatotypes,16 but anthropometrical parameters such as height and weight are well studied.2,6,12,25,28 It has been found that body composition is influencing dance performance.2 Many authors have been concerned about the low body fat percentage of female ballet dancers,20,31 as it can increase the risk of injury and delay healing.30 Just as the term sport covers a wide variety of different disciplines, dance is an umbrella term that includes diverse December 2013 207 genres. Therefore, data obtained from one dance style may not be applicable to other genres. Different dance styles have different training and performance regimes. Auditions into dance schools and companies often involve selecting dancers with specific anthropometric parameters. Therefore, the purpose of the present study was to compare anthropometric variables, such as body weight, height, percent body fat, somatotype, and aerobic capacity, among three different groups of dancers: classical ballet, contemporary dance, and dancesport. It was hypothesed that dancesport athletes would have higher aerobic capacity indicators compared to the other two dance genres. In addition, ballet dancers are more mesomorphic, with lower body fat percentage compared to the dancesport and contemporary dancers. METHODS Participants Two hundred eighty-six dancers from the dance genres took part in the study: 89 ballet dancers (male 33, female 56), 137 contemporary dancers (M 28, F 109), and 60 dancesport dancers (M 30, F 30). Ballet and contemporary dancers were professionals. All dancesport athletes were dancing couples who are competing at the international level. Anthropometric measurements (height, weight, and BMI) were taken on all the participants. Aerobic capacity (VO2max) was measured in 40 ballet dancers (M 17, F 23), 19 contemporary dancers (M 7, F 12), and 60 dancesport dancers (M 30, F 30). Body fat percentage and somatotype characteristics were determined on 49 ballet dancers (M 16, F 33), 118 contemporary dancers (M 21, F 97) and 60 dancesport dancers (M 30, F 30). Participants originated from Eastern Europe and the UK. Dancesport athletes were among the top 6% of the athletes listed in the world rankings.14 The couples had been dancing together for the 3.9±2.8 yrs. Average training experience for dancesport athletes was 14.9±5.1 yrs, and they currently trained 11.9±6.2 hrs/wk. Dancesport participants reported that they practiced manly dancesport-specific training but also made physical preparation for the season (jogging, stretching, etc). Ballet and contemporary dance participants trained 38 hrs/wk, 6 days a week. There was no organized cross training in all three dance styles. All participants were healthy and free of injury. All participants signed an informed consent prior to testing. This study was approved by the Medical Ethics Committees of the University of Tartu and the University of Wolverhampton. Anthropometry, Body Mass Index, Percent Body Fat, and Somatotypes Body height (Martin metal anthropometer, GPM SilberHegner, Zürich, Switz.) and body mass (A&D Instruments, Abingdon, UK) of the participants were measured to the nearest 0.1 cm and 0.05 kg, respectively. The body mass index (BMI) was calculated as weight/height2. Body compo208 Medical Problems of Performing Artists sition was measured using dual-energy x-ray absorptiometry. Whole body scans were performed using a Lunar DPXIQ densitometer (Lunar Corp., Madison, WI) and analyzed for body fat percentage. All anthopometrical parameters for determination of somatotypes were measured according to the protocol recommended by International Society for the Advancement of Kinanthropometry (ISAK) by a person certified by ISAK.27 Nine skinfolds, 13 girths, 8 lengths, and 11 breadth/lengths were measured on the right side of the body using a Holtain skinfold caliper (Holtain, Crymmych, Grosswell, UK. Three series of anthropometric measurements were taken for each site and the mean was recorded. Three somatotypes components—endomorphy, mesomorphy and ectomorphy—were calculated according to the anthropometric somatotyping method.9 Incremental Treadmill Test Maximal oxygen consumption was measured during an incremental treadmill test until volitional exhaustion. Heart rate (HR) was recorded at every 5 sec during the test using Sporttester Polar 725X (Polar Electro, Oy Kempele, Finland). The standardized 5-min warm up at 7 km/hr for males and 5 km/hr for females was used before incremental test. The test started at 8 km/hr for males and 6 km/hr for females and speed was increased by 1 km/hr after every 2 min until exhaustion. Treadmill incline was 0% throughout the incremental test. Breath-by-breath respiratory gas exchange variables were measured throughout the test using a portable open-circuit spirometry system (MetaMax 3B, Cortex Biophysic GmbH, Leipzig, Germany. The analyzer was calibrated before the test with gases of known concentration according to the manufacturer’s guidelines. All data were processed by using standard software (MetaSoft, Cortex Biophysic GmbH) and the system for heart rate (HR) analysis. Statistical Analysis Data were assessed for normality, and a 2 × 3 factorial analysis (gender × dance style) was used to test for differences; Scheffe and Tukey post-hoc tests were used for between-style comparisons (SPSS 20.0 for Windows, Chicago, IL) and Pearson product correlations to ascertain relationships between specific variables. The level of significance was set at p<0.05. RESULTS Anthropometrical characteristics of the subjects are presented in Table 1. There were significant differences between dance styles in height (f2,280 = 9.677, p<0.001), body mass (f2,280 = 11.912, p<0.001), and BMI (f2,280 = 18.822, p<0.001) values. Post hoc tests indicated that male and female dancesport dancers were taller compared to same gender contemporary dance participants (p<0.05). Female contemporary dance and dancesport dancers had higher TABLE 1. Mean Anthropometrical Characteristics and BMI of Dancers in Different Styles Ballet Contemporary DanceSport ____________________________ ____________________________ ____________________________ Male Female Male Female Male Female (n=33) (n=56) (n=28) (n=109) (n=30) (n=30) Age (yrs) Height (m) Body mass (kg) BMI (kg/m2) 22.39±4.6 1.78±0.07 67.45±7.35 21.27±1.55 21.07±4.48 1.64±0.04 50.38±4.39 18.65±1.31 24.68±4.83 1.76±0.06 68.08±7.44 22.04±1.79 22.00±3.24 1.64±0.06 55.72±6.33* 20.82±1.80* 22.83±6.56 1.80±0.06† 71.87±6.13 22.00±1.33 21.99±6.36 1.67±0.05† 55.72±4.60‡ 19.90±1.23†‡ Data given as mean±SD. BMI, body mass index. *p<0.01 comparing ballet and contemporary dancers of the same gender. †p<0.05 comparing contemporary and dancesport dancers of the same gender. ‡p<0.01 comparing ballet and dancesport dancers of the same gender. body mass and BMI values compared with female ballet dancers (p<0.001). Female contemporary dancers had higher BMI values than female dancesport dancers (p<0.05). There was a significant difference in age (p<0.05), height, body mass, and BMI (p<0.001) between genders. There was a significant difference in VO2max values between three dance styles (f2,112 = 33.724, p<0.001), and post hoc tests indicated VO2max values of dancesport dancers were significantly higher (p<0.01) (Table 2). There were significant difference between dance styles in body fat percentage (f2,112 = 5.524, p<0.05). Female contemporary and dancesport dancers had higher body fat percentage than female ballet dancers (p<0.001). There was no significant difference among male dancers in body fat percentage. There was significant difference in endomorphy (f2,112 = 8.773, p<0.001) and mesomorphy (f2,112 = 21.458, p<0.001) characteristics between dance styles. Female dancesport dancers had lower endomorphy values compared to female ballet and contemporary dancers (p<0.001). Female ballet dancers had lower mesomorphy values compared to female contemporary (p<0.05) dancers. In contrast, female ballet dancers had higher mesomorphy scores compared to female dancesport participants. Male (p<0.05) and female (p<0.001) contemporary dancers had higher mesomorphy values than same-gender dancesport dancers. There was a significant difference between genders in body fat percentage, endomorphy, and mesomorphy values (p<0.001). There were no significant differences in ectomorphy scores. DISCUSSION The aim of the present study was to assess the homogenity of professional dancers for anthropometric variables and aerobic capacity. Within the exercise science literature, there have been very few studies that have compared the different dance genres to ascertain whether there are uniform characteristics such as body shape and aeriobic fitness among the three dance genres classical ballet, contemporary dance, and dancesport. Within sport, it is well established that different sports require participants to have specific anthropometric and physical characteristics to compete at an elite level.4,17 It has also been suggested TABLE 2. Mean Percent Body Fat, Maximal O2 Uptake, and Somatotype of Dancers in Different Dance Styles Ballet Contemporary DanceSport ____________________________ ____________________________ ____________________________ Male Female Male Female Male Female Anthropometric Body fat % Endomorphy Mesomorphy Ectomorphy (n=16) 12.65±2.92 2.34±0.91 4.63±1.59 2.59±0.95 (n=33) 17.52±2.54 3.59±0.84 3.43±1.07 3.65±0.96 (n=21) 12.98±0.97 2.63±0.67 4.88±1.17 2.98±0.97 Incremental fitness test VO2max (mL/min/kg) (n=17) 49.61±3.93 (n=23) 43.69±5.13 (n=7) 56.88±4.94§ (n=97) 21.2±3.81* 3.79±1.07 4.07±0.97 § 3.29±5.20 (n=12) 47.51±6.44 (n=30) 13.06±4.33 2.38±0.63 3.89±0.73¶ 3.22±0.76 (n=30) 21.92±3.74† 2.72±0.67†‡ 2.73±0.81 ‡# 3.54±0.78 (n=30) 59.95±5.19† (n=30) 51.53±6.00# Data given as mean±SD. * p<0.01 comparing ballet and contemporary dancers of the same gender. † p<0.01 comparing ballet and dancesport dancers of the same gender. ‡ p<0.01 comparing ballet and dancesport dancers of the same gender. § p<0.05 comparing ballet and contemporary dancers of the same gender. ¶ p<0.05 comparing contemporary and dancesport dancers of the same gender. # p<0.05 comparing ballet and dancesport dancers of the same gender. December 2013 209 FIGURE 1. Mean somatotypes for male and female ballet (B), contemporary (C), and dancesport (D) dancers. that functional adaptation due to different training regimens may be responsible for the determination of some anthropometric changes.15 Height, body weight, body fat percentage, and VO2max values of classical ballet dancers, contemporary dancers, and dancesport dancers were similar to those reported in previous studies.5,6,10,21,25 Female ballet dancers had lowest body fat percentage, body mass, and BMI compared with female contemporary dance and dancesport dancers, confirming the genre’s requirements for female dancers to be light, low body fat content, and low body weight in order to perform the tasks related to classical ballet.29 Female ballet dancers lower body fat percentage, body mass, and BMI compared with female contemporary and dancesport dancers may relate to different aesthetic values of ballet, contemporary, and dancesport dancers. The observed higher height of dancesport athletes compared to contemporary dancers may be related to the fact that dancesport does not have lifts within its choreography, which require the female dancer to be lifted above the partner’s head where her weight could become an issue. The choreography, especially with standard dances, requires large movements and shapes, especially in the upper body, which is enhanced by having a taller frame and longer limbs. Standard dance is one of three dancesport disciplines where five standard dances (waltz, tango, Viennese waltz, slow foxtrot, and quickstep) are performed. All standard dances demand wide movement and big shapes, and in dance hold, greater height probably helps to achieve this. There was significant difference in mesomorphic and endomorphy scores between the three dance styles (Fig. 1). Female danceport dancers are less mesomorphic and endomorphic than females of the other two dance styles, and female contemporary dancers are more mesomorphic than female ballet dancers. The reason for higher mesomorphy scores for contemporary dancers may be because, unlike most ballet dances, contemporary dance has less of a gender divide within the choreographed movements34 and the dancers often come from a multidisciplinary background (e.g., gymnastics).23 210 Medical Problems of Performing Artists Previous research has reported the somatotypes for aesthetic sports like gymnastics and figure skating are as follows: figure skating, males 1.7–5.0–2.918 and females 3.4– 3.7–2.926; gymnastics, male 2.6–6.2–1.58 and females 2.6– 4.4–2.6.8 Compared to other aesthetic sports such as figure skating and gymnastics, male dancers of all three genres (ballet, contemporary and dancesport) were less mesomorphic than male gymnasts8 and figure skaters.18 Male contemporary dance and dancesport participants were more ectomorphic compared to male figure skaters18 and gymnasts.8 Male ballet dancers were more ectomorphic compared to male gymnasts.8 Female figure skaters26 and gymnasts11 were more mesomorphic compared to female dancesport and ballet participants. Female contemporary dancers, on the other hand, were more mesomorphic than female figure skaters26 and gymnasts.11 Female dancers of all three genres were more ectomorphic compared to female figure skaters26 and gymnasts.11 It has been suggested that dancers would benefit from aerobic training1 and a high anaerobic threshold to limit the effects of fatigue, such as a decrease in balance, poise, and coordination.3,25,33 The dancesport participants recorded the highest relative oxygen uptake, while classical ballet dancers demonstrated lower maximal oxygen uptake than contemporary dancers.2 These differences could be due to the variation in the physical demands of dancing in the different genres.13,34 Classical ballet and modern dance are noncompetitive, and dancers do not need to strive against others during performance. Dancesport, in contrast, requires competing throughout the day and to be recalled through a number of rounds before reaching the final. This difference between the genres is especially highlighted in the aerobic capcity of female dancers, where the dancesport participants had significantly higher VO2max than the other two genres. This could be due to the training and competitive requirements of dancesport and especially standard dances, which require the female dancers to match their male partners stride for stride. CONCLUSION Classical ballet, contemporary dance, and dancesport dancers differ by somatotype. Female contemporary dancers are generally more muscular than their ballet counterparts, while dancesport dancers are taller and heavier, less muscular, and with slightly greater adioposity than the classical ballet and contemporary dancers. Ballet dancers had the lowest body fat percentage, weight, and BMI values. Dancesport dancers had greater aerobic capacity than ballet dancers. 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