Laboratory for the Scientific Study of Dance, Center for Cognitive & Brain Health, Northeastern University, Boston, MA, United States of America.
Department of Physical Therapy, Movement & Rehabilitation Sciences, Bouvé College of Health Sciences, Northeastern University, Boston, MA, United States of America.
PLoS One. 2024 Nov 18;19(11):e0313144. doi: 10.1371/journal.pone.0313144. eCollection 2024.
Engaging in dance of various styles confers health benefits among adults; however, additional studies on free-form dancing are needed to quantify its intensity and advance research on dance and health. This study characterized the absolute and relative physical activity (PA) intensities of solo, free-form dancing at self-determined moderate and vigorous intensities in adults.
Participants (N = 48) ages 18 to 83 years old, with 0 to 56 years of dance training experience, engaged in 5-minute free-form dance bouts at respectively self-determined moderate and vigorous intensities, both with and without music. Absolute intensity was measured during bouts using indirect calorimetry (metabolic equivalents; METs = [Formula: see text]O2 ml·kg-1·min-1/3.5). Relative intensity was measured by ratings of perceived exertion (Borg scale) and heart rate. Linear mixed effects models were used to assess the relationship between absolute and relative intensity metrics and model covariates.
On average, the relative intensity of self-determined moderate-to-vigorous intensity dancing, with and without music, was 76% of the age-predicted maximal heart rate; 74% of the heart rate reserve (HRR); and 13 on the Borg scale. By measure of %HRR, all adults reached at least a moderate PA intensity across all dance bouts. The mean absolute intensity of self-determined moderate intensity free-form dancing without music was 5.6 METs, and the presence of music (β = 0.6) and the intention to dance at a vigorous intensity (β = 1.1) were both significantly positively associated with METs, as participants engaged in free-form dance; METs were significantly inversely associated with age (β = -0.05) and BMI (β = -0.10).
When characterized using HRR, engaging in free-form dance at self-determined moderate-to-vigorous PA intensities provided a sufficient stimulus for all adults to reach a moderate PA intensity, which provides evidence that dancing however one wishes at such perceived intensities may support adults in accumulating the recommended weekly dose of 3150 minutes of moderate intensity PA.
各种风格的舞蹈都能给成年人带来健康益处;然而,需要更多关于自由式舞蹈的研究来量化其强度,并推进舞蹈与健康的研究。本研究旨在描述成年人自主选择适度和剧烈强度下的单人自由式舞蹈的绝对和相对体力活动(PA)强度。
参与者(N=48)年龄在 18 至 83 岁之间,舞蹈训练经验 0 至 56 年,分别在自主选择的适度和剧烈强度下进行 5 分钟的自由式舞蹈,有音乐和无音乐两种情况。在舞蹈过程中使用间接测热法(代谢当量;METs=[Formula: see text]O2 ml·kg-1·min-1/3.5)测量绝对强度。相对强度通过感知用力程度(Borg 量表)和心率来测量。使用线性混合效应模型评估绝对和相对强度指标与模型协变量之间的关系。
平均而言,有音乐和无音乐的自主选择的中等到剧烈强度舞蹈的相对强度为预测最大心率的 76%;心率储备(HRR)的 74%;Borg 量表的 13 级。根据 HRR 的测量,所有成年人在所有舞蹈过程中都达到了至少中等 PA 强度。无音乐的自主选择的适度强度自由式舞蹈的平均绝对强度为 5.6 METs,音乐的存在(β=0.6)和自主选择剧烈强度跳舞的意图(β=1.1)与参与者进行自由式舞蹈时的 METs 呈显著正相关;METs 与年龄(β=-0.05)和 BMI(β=-0.10)呈显著负相关。
当使用 HRR 进行描述时,在自主选择的中等到剧烈 PA 强度下进行自由式舞蹈为所有成年人提供了达到中等 PA 强度的充分刺激,这表明以感知强度进行自由式舞蹈可能支持成年人积累推荐的每周 3150 分钟中等强度 PA 剂量。