各位有没有知道关于国外健美操研究现状的啊
如题，在这里谢谢大家了！ : Cardiol J. 2007;14(3):260-5.Related Articles, LinksDecrease in QRS amplitude in juvenile female competitive athletes during the initial twenty-one months of intensive training.
Bacharova L, Tibenska M, Kucerova D, Kyselovicova O, Medekova H, Kyselovic J.
Background: The aim of this project was to study changes in QRS amplitude in junior female athletes during the initial twenty-one months of competitive training programme in aerobic gymnastics. Methods: Somatometric parameters, heart rate (HR), blood pressure (BP) and 12-lead ECGs were recorded in 12 female athletes, aged 13-17 years (average 13.8) at 3-month intervals over a period of 21 months. The Sokolow-Lyon index (SLI) and the maximum QRS spatial vector magnitude (QRSmax), approximated from RV5, RaVF and SV2 voltages, were analyzed. Results: The mean values of QRSmax and SLI decreased gradually during the study period. The difference between the mean QRSmax values at the beginning and at the end of the study period was -0.8 mV (30.8%), p < 0.001, and between the initial and final values of SLI was -0.6 mV (24%), p < 0.001. The somatometric parameters changed only slightly, HR and systolic BP values did not change significantly. Conclusions: This study showed that 21 months of competitive aerobic gymnastics training led to a decrease in the QRSmax magnitude. This finding is in contrast with the classical hypothesis on the ECG diagnostics of LVH and is in agreement with an alternative hypothesis on the relative voltage deficit during the early stage of LVH development. (Cardiol J 2007; 14: 260-265). Coll Antropol. 2007 Mar;31(1):259-66.Related Articles, Links
The impact of dance-aerobics training on the morpho-motor status in female high-schoolers.
Viskić-Stalec N, Stalec J, Katić R, Podvorac D, Katović D.
Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia.
The aim of the study was to analyze the impact of special programmed physical education including dance, aerobics and rhythmic gymnastics on the development of motor and functional abilities and morphological characteristics of female fourth-grade high-schoolers in Zagreb. A total sample of 220 high-schoolers aged 16-18 years were divided into two groups: experimental group of 115 students attending the program composed of dance structures and aerobics, and control group of 105 students attending classic program of physical education. A set of 3 morphological variables, 6 motor variables and one functional variable were applied in both groups on three occasions during an academic year (initial, transient and final measurements). Two-factor analysis of variance (MANOVA repeated measure design) showed the experimental program to significantly influence the development of coordination/agility and specific rhythm coordination, functional aerobic ability, repetitive and explosive strength and flexibility, along with significant reduction of overweight and adipose tissue. Study results clearly indicate that the existing programs of physical education should be revised and replaced by more appropriate ones. Int J Sports Med. 2007 May;28(5):386-93. Epub 2006 Oct 6.Related Articles, Links
Artistic versus rhythmic gymnastics: effects on bone and muscle mass in young girls.
Vicente-Rodriguez G, Dorado C, Ara I, Perez-Gomez J, Olmedillas H, Delgado-Guerra S, Calbet JA.
Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas, Spain. [email]gvicente@arrakis.es[/email]
We compared 35 prepubertal girls, 9 artistic gymnasts and 13 rhythmic gymnasts with 13 nonphysically active controls to study the effect of gymnastics on bone and muscle mass. Lean mass, bone mineral content and areal density were measured by dual energy X-ray absorptiometry, and physical fitness was also assessed. The artistic gymnasts showed a delay in pubertal development compared to the other groups (p<0.05). The artistic gymnasts had a 16 and 17 % higher aerobic power and anaerobic capacity, while the rhythmic group had a 14 % higher anaerobic capacity than the controls, respectively (all p<0.05). The artistic gymnasts had higher lean mass (p<0.05) in the whole body and the extremities than both the rhythmic gymnasts and the controls. Body fat mass was 87.5 and 61.5 % higher in the controls than in the artistic and the rhythmic gymnasts (p<0.05). The upper extremity BMD was higher (p<0.05) in the artistic group compared to the other groups. Lean mass strongly correlated with bone mineral content (r=0.84, p<0.001), and multiple regression analysis showed that total lean mass explained 64 % of the variability in whole body bone mineral content, but only 20 % in whole body bone mineral density. Therefore, recreational artistic gymnastic participation is associated with delayed pubertal development, enhanced physical fitness, muscle mass, and bone density in prepubertal girls, eliciting a higher osteogenic stimulus than rhythmic gymnastic. Int J Sports Med. 2002 Apr;23(3):155-7.Related Articles, Links
Opioid receptor blockade eliminates mood effects of aerobic gymnastics.
Järvekülg A, Viru A.
Institute of Exercise Biology, University of Tartu, Estonia.
The contribution of opioid receptors to the mood effects of aerobic gymnastics was tested by oral administration of naltrexone (25 or 50 mg) in 12 healthy women (aged 22 - 30 years). The opioid receptor blockade eliminated decreased anxiety, negative affect level and depressiveness as well as increased positive affect level, as found in a placebo trial after a 50 min session of aerobic gymnastics. 50 mg of naltrexone was more effective than 25 mg. Administration of 50 mg of naltrexone without exercise did not cause any significant changes in anxiety, positive and negative affect levels or depressiveness. J Sports Med Phys Fitness. 2001 Jun;41(2):177-82.Related Articles, Links
VO2max, ventilatory and anaerobic thresholds in rhythmic gymnasts and young female dancers.
Baldari C, Guidetti L.
University Institute of Motor Sciences, Rome, Italy. [email]baldaricarlo@hotmail.com[/email]
BACKGROUND: This study examines the fitness level of a rhythmic gymnasts group and a young female classical dancers group. METHODS: Aerobic power (VO2max), individual ventilatory (IVT) and anaerobic thresholds (IAT) were assessed in 12 elite rhythmic gymnasts, eight elite ballet dancers and 12 sedentary female subjects in the same age range (13-16 yrs). The VO2max, IVT and IAT were assessed during a continuous incremental running treadmill test. RESULTS: At IVT and IAT the VO2max expressed in ml x kg(-1) x min(-1) was significantly different between the three groups of subjects. The highest values were found in gymnasts (30.8+/-2.6 for IVT and 43.8+/-3.5 for IAT) followed by the values of dancers (21.7+/-2.8 for IVT and 30.5+/-3.1 for IAT) and controls (15.6+/-2.0 for IVT and 20.6+/-1.7 for IAT). When the VO2max was expressed in percent of VO2max, the values at IAT were significantly different between all groups (gymnasts: 84.9+/-0.7; dancers: 64.0+/-4.1; controls: 59.7+/-2.4) while at IVT no difference was found between dancers and controls (45.6+/-4.1 and 45.2+/-16, respectively). At maximal effort VO2 was significantly higher both in gymnasts and dancers (51.7+/-4.4 and 47.5+/-3.0 ml x kg(-1) x min(-1), respectively), than in controls (34.5+/-2.5 ml x kg(-1) x min(-1)). CONCLUSIONS: Although VO2max was similar between gymnasts and dancers, VO2 values at NT and IAT were able to discriminate the higher level of fitness in gymnasts with respect to dancers. Int J Sports Med. 2000 Apr;21(3):205-9.Related Articles, Links
Energy cost and energy sources of ball routine in rhythmic gymnasts.
Guidetti L, Baldari C, Capranica L, Persichini C, Figura F.
University Institute of Motor Sciences (IUSM) of Rome, Italy. [email]la.guidetti@confor.it[/email]
The energy cost and the different energy sources of competitive rhythmic ball-routines were assessed in nine young elite rhythmic gymnasts (13-16 years of age). The overall energy requirement of ball exercise (VO2eq) was obtained by adding the amount of VO2 during exercise above resting (VO2ex) to the VO2 up to the fast component of recovery (VO2al) and to the energy equivalent of peak blood lactate accumulation (VO2la-) of recovery. The lactate (La) curve up to 25 minutes of recovery always showed La peaks at 3 min after exercise (4.0 +/- 0.4 mmol/l) and values still above rest at 25 min (2.3 +/- 0.5 mmol/l). Although ball routines were short in duration (90 s), the metabolic power requirement was 1.1 times higher than the subject's VO2max. The energy cost (VO2eq) amounted to 81 +/- 5 ml x kg(-1). Higher fractions of VO2eq were VO2ex 49% and VO2al 42%, while the remaining 9% was due to VO2la-. The aerobic source resulted in the most utilized system due to the subjects' high VO2max (52.7 ml x kg(-1) x min(-1)) and anaerobic threshold (LT = 84.4%). The HR and the peak lactate values of ball routine were similar to the values recorded at LT step during treadmill test. Although the HR and VO2 values were significantly correlated (during pre-exercise, exercise, and fast recovery), the exercise intensity derived from HR Kanvonen method during ball routine did not correspond to the % of VO2max. Med Sci Sports Exerc. 2000 Mar;32(3):659-68.Related Articles, Links
Relationship between energy deficits and body composition in elite female gymnasts and runners.
Deutz RC, Benardot D, Martin DE, Cody MM.
Laboratory for Elite Athlete Performance, Center for Sports Medicine, Science & Technology, College of Health and Human Sciences, Georgia State University, Atlanta 30303, USA.
PURPOSE: The purpose of this study was to evaluate energy balance and body composition in 42 gymnasts (mean age = 15.5 yr) and 20 runners (mean age = 26.6 yr), all of whom were on national teams or were nationally ranked. METHODS: Athletes were assessed for body composition using DEXA and skinfolds, and energy balance was determined with a Computerized Time-Line Energy Analysis (CTLEA) procedure. RESULTS: Results from the CTLEA were assessed as the number of within-day energy deficits (largest and frequency) and within-day energy surpluses (largest and frequency). There was a significant difference (P = 0.000) in the mean number of hourly energy deficits > 300 kcal experienced by gymnasts (9.45 +/- 6.00) and runners (3.70 +/- 5.34). There was also a significant difference (P = 0.001) in the mean number of hourly energy surpluses > 300 kcal experienced by gymnasts (1.40 +/- 3.04) and runners (6.20 +/- 5.50). The mean largest daily energy deficit was 743 (+/- 392) kcal for gymnasts and 435 (+/- 340) kcal for runners. The mean largest daily energy surplus was 239 (+/- 219) kcal for gymnasts, and 536 (+/- 340) kcal for runners. There was a significant relationship between the number of daily energy deficits > 300 kcal and DEXA-derived body fat percent for gymnasts (r = 0.508; P = 0.001) and for runners (r = 0.461; P = 0.041). There was also a negative relationship between the largest daily energy surplus and DEXA-derived body fat percentage for gymnasts (r = -0.418; P = 0.003). Using the energy balance variables, age, and athlete type (artistic gymnast, rhythmic gymnast, middle-distance runner, long-distance runner) as independent variables in a forward stepwise regression analysis, a small but significant amount of variance was explained in DEXA-derived (P = 0.000; R2 = 0.309) and skinfold-derived (P = 0.000; R2 = 0.298) body fat percent by the number of energy deficits > 300 kcal and age. CONCLUSIONS: These data suggest that within-day energy deficits (measured by frequency and/or magnitude of deficit) are associated with higher body fat percentage in both anaerobic and aerobic elite athletes, possibly from an adaptive reduction in the REE. These data should discourage athletes from following restrained or delayed eating patterns to achieve a desired body composition. 楼主要是能够综述西方关于健美操研究成果, 将是一篇非常具有影响力的文章,因为中国期刊网上有健美操方面研究二千多篇, 就是没有国外情况滴, 局限于中国研究, 不过中国竞技健美操的竞技实力可是世界一流的呀
回复 9# huanglu0797 的帖子
:laugh: 非常好的提议。 谢谢大家啊!我正在写健美操方面的论文,不查不知道啊,一查才知道有关国外健美操研究成果原来在国内是空白! 再次感谢2008给我发的几篇文章 谢谢!回复 12# 美丽漂亮猪 的帖子
欢迎经常光临啊页:
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