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Dynamics of brain electric field during recall of Salpuri dance performance.

The brain wave activity of a professional Salpuri dancer was observed while the subject recalled her performance of the Salpuri dance when sitting in a chair with closed eyes. As she recalled the feeling of the ecstatic trance state induced by the dance, an increase in alpha brain activity was observed together with marked frontal midline theta activity. Compared to a resting state, the dynamics of the electrical activity in the brain showed an increase in the global field power integral and a decrease in generalized frequency and spatial complexity.

Adult↗

Effect of metaphorical verbal instruction on modeling of sequential dance skills by young children.

Metaphorical verbal instruction was compared to specific verbal instruction about movement in the modeling of sequential dance skills by young children. Two groups of participants (Younger, mean age 5:3 yr., n = 30: Older, mean age 6:2 yr., n = 30) were randomly assigned to conditions in a 2 (sex) x 2 (age [Younger and Older]) x 3 (verbal instruction [Metaphorical, Movement-relevant, and None]) factorial design. Order scores were calculated for both performance and recognition tests, comprising five acquisition trials and two retention trials after 24 hr., respectively. Analysis of variance indicated that the group given metaphorical instruction performed better than the other two instructions for both younger and older children. The results suggest that metaphorical verbal instruction aids the recognition and performance of sequential dance skills in young children.

Child↗

Drug addiction therapy. A dance to the music of time.

Dance therapy can play a useful role in the treatment and rehabilitation of women with drug addiction. It works by raising self-esteem through an improved relationship with the body, giving women the strength to help combat their habit. The benefits of dance therapy for women at the detox unit of Holloway Prison have been confirmed by prison staff.

Dance Therapy↗

Effect of motor abilities on performing the Hvar folk dance cicilion in 11-year-old girls.

A battery of 21 motor tests as predictor variables and evaluation of motor performance of cicilion, a Croatian folk dance from the island of Hvar as a criterion variable, were used in a sample of 101 female fifth-grade students aged 11 years. Regression analysis showed the changed group of motor variables to be a good predictor of success in performing the cicilion folk dance with multiple correlation of 0.63. The flexibility variable of astride trunk bending forwards and frequency variable of hand tapping had greatest impact on the criterion. A considerable favorable impact was also recorded for the variables for assessment of rhythmic coordination, balance, agility on ground, and repetitive strength of the trunk.

Child↗

The effect of modern Balinese Baris dancing exercise (MBBDE) on serum lipid profiles.

There is still a lack of information on the effect of regular dancing exercise on lipid profiles. On the other hand, many studies have been carried out on the effect of aerobic exercise on lipid profiles. This study tried to find out the effects of Modern Balinese Baris Dancing Exercise (MBBDE) on serum lipid profiles. Subjects of the study were 30 healthy young male Balinese as an experimental group, and another 30 healthy young Balinese as control group. The MBBDE involved exercise intensity at 70-80% of targeted heart rate, for 50 min period, 3 times per week for 8 weeks. Pre- and post-control group design was applied. Total cholesterol and triglyceride were measured enzymatically. Following MBBDE 3 x 50 min/week for 8 weeks duration, serum level of high density lipoprotein cholesterol (HDL-C) concentration increased significantly from 55.3 +/- 2.32 mg/dl to 63.2 +/- 2.82 mg/dl (p < 0.001). It was also associated with the decrease of total cholesterol concentration from 195.5 +/- 21.10 mg/dl to 161.8 +/- 21.29 mg/dl (p < 0.001); triglyceride concentration from 132.2 +/- 9.65 mg/dl to 110.6 +/- 9.08 mg/dl (p < 0.001); and low density lipoprotein cholesterol (LDL-C) concentration from 113.8 +/- 21.68 mg/dl to 76.9 +/- 20.76 mg/dl (p < 0.001). No significant differences were found in the above parameters in the control group. It is concluded that MBBDE is an aerobic, endurance exercise, and therefore produces beneficial effect on the serum lipid profiles.

Adult↗

Foot and ankle injuries in dance.

This review focuses on many of the foot and ankle injuries commonly seen among dancers. These unique athletes place extreme demands on their musculoskeletal system and thereby face a variety of acute and overuse injuries. Conservative treatment is successful in the majority of cases, but these patients often continue to dance while healing--commonly prolonging and at times complicating treatment. When surgery is being contemplated, the dancer's performance level and expectations about returning to dance after surgery should be thoroughly explored. Foot and ankle surgeries that routinely yield good to excellent results in the general population can prematurely end a dancer's otherwise promising career. The physician must consider all these factors when designing an appropriate treatment plan for a dancer.

Ankle Injuries↗

Dance-based aerobic exercise for rheumatoid arthritis.

Reported here are the results of the first effort to examine the effects of a dance-based aerobic exercise program for people with rheumatoid arthritis (RA). Forty-three subjects with RA completed a 16-week program that met twice weekly for 2 hours. One hour was devoted to exercise consisting of 15 to 20 minutes of warm-ups, 20 to 30 minutes of dance-based aerobic exercise, and 15 to 20 minutes of mat work for muscle strengthening and flexibility. The second hour was devoted to discussion that emphasized participant problem solving. The combined exercise/problem-solving discussion program was called EDUCIZE. Analyses of pretest to posttest changes indicated no deleterious effects on disease activity. In fact, physician-assessed articular pain and swelling decreased significantly, as did 50-foot walk time, pain, and depression. Participants reported significant improvement in lower extremity function. Changes in vigor and fatigue approached significance. Perceptions of general health as well as four of five quality of life indices improved significantly. This study adds to the as yet limited literature that indicates that weight-bearing vigorous exercise is beneficial for people with arthritis. Controlled studies to validate the findings of this study appear warranted. Also important for future research is investigation of the influence of the problem-solving discussion component on program effects.

Adult↗

Viscoelastic shoe insoles: their use in aerobic dancing.

To determine whether use of viscoelastic insoles would significantly decrease the frequency of musculoskeletal overuse injury in aerobic dancers, 139 high-level aerobic dancers were divided randomly into two groups. The control group received placebo foam insoles and test subjects were fitted with viscoelastic insoles. Subjects used these insoles during dance class for 15 weeks. Injury rates were low in both groups and no statistical difference was found. Pain syndromes were fewer in the group using viscoelastic insoles, but the difference was not statistically significant. About a third of dancers fitted with viscoelastic insoles and a tenth of placebo insert wearers found that the insoles made their shoes too tight to be comfortable. No conclusion can be drawn on whether shock-absorbing insoles decrease injuries from aerobic dancing, but use of viscoelastic insoles may improve comfort and provide pain relief for some high-level aerobic dancers if proper fit is achieved.

Adult↗

Injuries from break dancing.

Break dancing is a popular contemporary activity that has important medical implications. Some dancers have complained of lower back pain and difficulty in bending over-the "breakdance back syndrome." Break dancing injuries are often comparable to the orthopedic injuries that occur in unsupervised athletic activities. Careful screening, instruction, supervision and training of break dancers will help prevent injuries.

Adolescent↗

A comparison of the training responses to aerobic dance and jogging in college females.

The purpose of this study was to compare the physiological alterations that occur in college females as a result of a 7-wk jogging and aerobic dance-training program. Forty-six subjects (18-29 yr) volunteered to participate and included 15 dancers, 19 joggers, and 12 controls. All subjects were given a pre- and post-VO2max treadmill test. The joggers and dancers trained 4 d/wk, 30 min/d for 7 wk at an intensity that represented approximately 83 and 84% of their initial maximal heart rates, respectively. Both experimental groups significantly (P less than 0.05) increased their VO2max, VEmax, and maximal treadmill running times and significantly (P less than 0.05) decreased their maximal heart rates as a result of the training. The control group showed no significant (P greater than 0.05) changes in any of the variables measured. It was concluded that both aerobic dance and jogging were equally effective (P less than 0.05) exercise modalities for improving cardiorespiratory endurance when performed at similar intensities, frequencies, and durations.

Adolescent↗

Common foot and ankle injuries in dance.

Classical ballet is a popular but physically demanding activity. Minor injuries become increasingly common as the dancer encounters the greater workload of professional dancing. The doctor must have a basic knowledge of ballet technique and an understanding of the mental approach of dancers to accurately diagnose and effectively treat their injuries. The practice of dancing on the toes, the exaggerated turn out of the feet, and the extreme flexibility of the hips and spine all lead to unusual injuries. With informed conservative treatment, most ballet injuries will heal, but surgery is occasionally required.

Achilles Tendon↗

Neurological sequelae of the dancing eye syndrome.

UNLABELLED: Fifty-four patients with dancing eye syndrome (DES), presenting over a 25-year period, were reviewed retrospectively. One third of them were on active follow up at the time of the study. Malignancy was uncommon, diagnosed in only 4 patients, neuroblastoma in 3 cases and acute lymphoblastic leukaemia (ALL) in 1. An intercurrent illness preceded onset of DES in 51% of the children and was of equivocal significance. There was no clear temporal relationship to immunization. The acute phase of the illness was severe and caused total immobilization in 88% of patients. A favourable initial response to treatment with prednisolone or corticotrophin gel was observed in all patients. Although corticotrophin seemed to produce a more rapid response, overall improvement was similar with both treatments. Long-term neurological morbidity was a major problem with 91% of children suffering either persisting symptoms or repeated relapses. A persisting disability was found in 88% and was considered severe in 61% of patients. No features prognostic of neurological severity or outcome were identified. CONCLUSION: Demonstrable malignancy is uncommon in the dancing eye syndrome. The neurological legacy of DES is often evident well into adult life.

Brain Damage, Chronic↗

Rationale, objectives and design of the Direct Analysis of Nonvertebral Fracture in the Community Experience (DANCE) study.

The experience in randomized placebo-controlled clinical trials may differ from that in community practice. The pivotal teriparatide [rhPTH(1-34)] studies were initiated when few therapeutic options for osteoporosis were available. The Direct Analysis of Non-Vertebral Fractures in Community Experience (DANCE) study is a prospective observational trial designed to examine the occurrence of nonvertebral fragility fractures in a large, diverse patient population treated with teriparatide. The occurrence of clinical vertebral fractures and back pain will also be examined, as will bone mineral density, bone mineral content, bone area, safety and tolerability. Subjects will be followed through a course of teriparatide therapy for up to 24 months and for an additional 24 months after cessation of treatment. Therefore, subjects may participate in this study for up to 48 months. DANCE will provide data on the effectiveness and tolerability of teriparatide therapy in clinical practice that will complement the results of published controlled clinical trials.

Bone Density↗

The horizontal magnetic dance of the honeybee is compatible with a single-domain ferromagnetic magnetoreceptor.

Although honeybees are able to sense the geomagnetic field, very little is known about the method in which they are able to detect it. The recent discovery of biochemically precipitated magnetite (Fe3O4) in bees, however, suggests the possibility that they might use a simple compass organelle for magnetoreception. If so, their orientation accuracy ought to be related to the accuracy of the compass, e.g. it should be poor in a weak background fields and enhanced in strong fields. When dancing to the magnetic directions on a horizontal honeycomb, bees clearly show this type of alignment behavior. A least-squares fit between the expected alignment of a compass and this horizontal dance data is consistent with this hypothesis, and implies that the receptors have magnetic moments of 5 x 10(-13) emu, or magnetite volumes near 10(-15) cm3. Additional considerations suggest that these crystals are slightly sub-spherical and single-domain in size, held symmetrically in their receptors, and have a magnetic orientation energy of approximately to 6 kT in the geomagnetic field. A model of a magnetite-based magnetoreceptor consistent with these constraints is discussed.

Animals↗

Dancing eye syndrome and hyperphosphatasemia.

An 11-month-old boy with a relapsing dancing eye syndrome associated with elevation of serum alkaline phosphatase, lactate dehydrogenase, and aminotransferase activities is reported. During two clinical episodes the serum alkaline phosphatase activity increased up to four times the upper reference limit, remained elevated for a few weeks and normalized gradually in parallel with clinical improvement under steroid therapy. We found no evidence of liver or bone pathology nor of a neural crest tumor. The association between dancing eye syndrome and hyperphosphatasemia has not yet been described. The beneficial effect of the steroid therapy strengthens the hypothesis of an autoimmune origin.

Alanine Transaminase↗

Use of thiazoles in the halogen dance reaction: application to the total synthesis of WS75624 B.

The total synthesis of the pyridine-thiazole-containing natural product WS75624 B (1) is described. This synthesis proceeds via the Stille coupling of appropriately functionalized pyridine and thiazole components, and this paper details our studies on the use of the halogen dance reaction to prepare the desired thiazole. Various halogen dance reactions on thizoles are described, including a novel one-pot multistep reaction in which 2-bromothiazole is treated with LDA in the presence of a silyl chloride at -78 degrees C and quenched with an electrophile to provide the highly functionalized thiazole derivatives 27.

Biological Factors↗

Dancing eyes syndrome--brainstem acoustic evoked potential approach.

Three patients with dancing eyes syndrome of childhood are reported focussing on brainstem acoustic evoked potentials (BAEPs) recorded at different phases of the disease. In the first child in the acute phase BAEPs revealed pontine disturbance, which was less severe in a following milder attack. In the second child slight BAEP abnormalities were shown in the period of remission. In the case of the third child minimal pontine abnormalities were registered by BAEPs. These electrophysiological findings, in accordance with the clinical features, suggest tegmento-pontine or pontocerebellar localisation of pathology in the dancing eyes syndrome.

Brain Stem↗

The Effect of Music on Differences in Body Movement of College Music Majors, Dance Majors, and Survivors of Sexual Abuse.

The purpose of this study was to determine whether there would be differences between the mannerisms and body language of the three subject groups: music majors (n = 23), dance majors (n = 23), and victims of sexual abuse (n = 23). Each of the subjects moved to a variety of music selections individually in the experiment room. They then completed a self-report questionnaire pertaining to inhibition and relaxation experienced in responding to the three pieces. The experimenter videotaped their movement, and assessed specific movement patterns: how much of the body was used, how much tension the subject showed, whether or not the response was indirect or repeated patterns, and if the motions were of an outward or inward nature. Three-way analyses of variance were run on the results of the questionnaire and on movement characteristics. Results showed statistically significant differences in the interaction of subjects and music. The sexual trauma group was much less inhibited moving to the orchestral music than to reggae or jazz, as were the music students. The dance students reported feeling more relaxed with jazz.

Journal Article↗