J Phys Act Health. 2019 Nov 1;16(11):1039-1046. doi: 10.1123/jpah.2019-0097. Epub 2019 Sep 10.
While previous studies indicate an auditory metronome can entrain cadence (in steps per minute), music may also evoke prescribed cadences and metabolic intensities.
To determine how modulating the tempo of a single commercial song influences adults' ability to entrain foot strikes while walking and how this entrainment affects metabolic intensity.
Twenty healthy adults (10 men and 10 women; mean [SD]: age 23.7 [2.7] y, height 172.8 [9.0] cm, mass 71.5 [16.2] kg) walked overground on a large circular pathway for six 5-min conditions; 3 self-selected speeds (slow, normal, and fast); and 3 trials listening to a song with its tempo modulated to 80, 100, and 125 beats per minute. During music trials, participants were instructed to synchronize their step timing with the music tempo. Cadence was measured via direct observation, and metabolic intensity (metabolic equivalents) was assessed using indirect calorimetry.
Participants entrained their cadences to the music tempos (mean absolute percentage error = 5.3% [5.8%]). Entraining to a music tempo of 100 beats per minute yielded ≥3 metabolic equivalents in 90% of participants. Trials with music entrainment exhibited greater metabolic intensity compared with self-paced trials (repeated-measures analysis of variance, F1,19 = 8.05, P = .01).
This study demonstrates the potential for using music to evoke predictable metabolic intensities.
尽管先前的研究表明，听觉节拍器可以调整步伐（每分钟步数），但音乐也可以唤起规定的步伐和代谢强度。
确定调节一首商业歌曲的节奏如何影响成年人在行走时与脚步同步的能力，以及这种同步如何影响代谢强度。
20 名健康成年人（10 名男性和 10 名女性；平均[标准差]：年龄 23.7[2.7]岁，身高 172.8[9.0]厘米，体重 71.5[16.2]千克）在一个大圆形路径上以 3 种自主选择的速度（慢、中、快）进行 6 次 5 分钟的测试，同时听 3 种音乐，其节奏分别调节到 80、100 和 125 节拍/分钟。在音乐测试中，参与者被指示根据音乐节奏同步他们的步伐时间。通过直接观察测量步频，通过间接测热法评估代谢强度（代谢当量）。
参与者的步频与音乐节奏相协调（平均绝对百分比误差=5.3%[5.8%]）。以 100 节拍/分钟的音乐节奏进行协调，90%的参与者产生了≥3 个代谢当量。与自主步伐测试相比，音乐协调测试表现出更高的代谢强度（重复测量方差分析，F1,19=8.05，P=0.01）。
本研究表明，使用音乐来产生可预测的代谢强度是可行的。
