000 03166nab a2200265 c 4500
001 myd_84859
003 ES-MaCDM
005 20241003081903.0
008 181003s2011 sp ||||fr 00| u|spa u
040 _aES-MaCDM
100 1 _aClippinger, Karen S.
_9101744
245 0 _aBone mineral density and body composition of collegiate modern dancers
_cCLIPPINGER, Karen S.; FRIESEN, Karlie J.; ROZENEK, Ralph; GUNTER, Kathy; RUSSO, Albert C.; SKLAR, Susan E.
260 _c2011:
_bJ. Michael Ryan Publishing,
_aAndover, NJ
336 _aTexto (visual)
337 _aSin mediación
520 _aRESUMEN: This study investigates body composition (BC), bone mineral density (BMD), eating behaviors, and menstrual dysfunction in collegiate modern dancers. Thirty-one female collegiate modern dance majors (D), 18 to 25 years of age, and 30 age-matched controls (C) participated in the study. BC and BMD were measured using dual energy x-ray absorptiometry (DXA). Upper and lower body strength was assessed by chest and leg press one-repetition maximum tests. Participants completed three-day food records, and the diet was analyzed using nutritional software. Menstrual dysfunction (MD) and history of eating disorder (ED) data were collected via questionnaires. BC and BMD variables were analyzed using MANCOVA and frequency of ED and MD by Chi-Square analysis. BMD was greater in D than C at the spine (1.302 ± 0.135 g/cm2 vs. 1.245 ± 0.098 g/cm2), and both the right hip (1.163 ± 0.111 g/cm2 vs. 1.099 ± 0.106 g/cm2) and left hip (1.160 ± 0.114 g/cm2 vs. 1.101 ± 0.104 g/cm2; p ≤ 0.05). Total body fat percentage was lower in D than C (25.9 ± 4.2% vs. 32.0 ± 5.9%; p ≤ 0.05), and percent of fat distributed in the android region was also lower in D than C (28.0 ± 6.2% vs. 37.6 ± 8.6%; p ≤ 0.05). With regard to diet composition, only percent fat intake was lower in D than C (27.54 ± 6.8% vs. 31.5 ± 7.4%, p ≤ 0.05). A greater incidence of ED was reported by D than C (12.9% vs. 0%; p ≤ 0.05), as well as a greater incidence of secondary amenorrhea (41.9% vs 13.3%; p ≤ 0.05). No differences were found for incidence of primary amenorrhea, oligomenorrhea, or use of birth control. Strength values were higher in D than C for both chest press (30.1 ± 0.9 kg vs. 28.4 ± 1.0 kg; p ≤ 0.05) and leg press (170.7 ± 4.2 kg vs.163.1 ± 3.9 kg; p ≤ 0.05). It is concluded that the dancers in our study had a healthy body weight, yet reported a higher incidence of eating disorders and menstrual dysfunction, than non-dancers. These dancers' higher BMD may be attributable to the mechanical loading and increased strength associated with practicing modern dance. Further, modern dancers had lower centrally located body fat, which decreases the risk for cardiovascular and metabolic diseases.
700 1 _aFriesen, Karlie J.
_9136753
700 1 _aGunter, Kathy
_9136751
700 1 _aRozenek, Ralph
_9136752
700 1 _aRusso, Albert C.
_9136750
700 1 _aSklar, Susan E.
_9136749
773 0 _tJournal of dance, medicine & science
_072900
_wmyd_16043
_gVol. 15, núm. 1, 2011, p. 31
903 _a84859
_b84859
942 _cART
999 _c121816
_d121816