In order to assist in understanding the potential benefits of hand-held weights during aerobic dance exercise training, 30 female subjects ages 18 to 25 were assigned randomly to one of two groups. Group 1 subjects (n = 15) performed an aerobic dance routine without one-pound hand-held weights, while Group 2 subjects (n = 15) performed the same routine with weights. A maximal graded treadmill test preceded the aerobic dance test for the determination of [latin capital V with dot above]O2 max, heart rate (HR) max, systolic blood pressure (SBP) max, diastolic blood pressure (DBP) max, mean arterial pressure (MAP) max, and maximal blood lactate accumulation. Subjects in both groups performed to a videotape with sound, to decrease the likelihood of data alterations due to encouragement. Results indicated no statistical difference (p > 0.05) between the groups for HR, SBP, DBP, MAP or blood lactate accumulation. The only significant differences (p < 0.05) between the groups were in [latin capital V with dot above]O2 and percent [latin capital V with dot above]O2 max. Group 1 (without weights) averaged 27.38 ml*kg-1*min-1 (72.2 +/- 12.2 percent of [latin capital V with dot above]O2 max), whereas Group 2 (with weights) averaged 31.65 ml*kg-1*min-1 (83.4 +/- 7.9 percent). These data indicate that HR, BP and lactate responses are not different if hand-held weights are used, but oxygen consumption is elevated, perhaps because of the recruitment of additional motor units.
(C) 1991 National Strength and Conditioning Association