Faculty of Nursing, Baika Women's University, Shukunosho 2-19-5, Ibaraki, Osaka, 567-8578, Japan.
Lipids Health Dis. 2018 May 9;17(1):104. doi: 10.1186/s12944-018-0743-3.
The purpose of this study was to determine whether or not circuit training at home affects the calcaneus quantitative ultrasound status as well as other indices of body composition among undergraduate female students.
Forty-one adolescents were recruited (18.5 ± 0.6 years old). The stiffness index of the calcaneus, broadband ultrasound attenuation of the calcaneus, speed of sound of the calcaneus, and body frame index. This was a three-month intervention study, so the measurements were conducted at baseline, 2 months later, and 3 months later while the subjects underwent circuit training at home. The subjects were divided into two groups: namely, the exercising group and non-exercising group.
In the exercising group, broadband ultrasound attenuation of the calcaneus was higher 2 months later (p = 0.033) as well as 3 months later (p = 0.036), and the speed of sound of the calcaneus was higher 3 months later (p = 0.018). In addition, the muscle mass was strongly positively correlated with the calcaneus QUS-SOS (p = 0.004), while the body fat percentage was a strongly negatively correlated with the calcaneus QUS-BUA (p = 0.043). In the non-exercising group, the stiffness index of the calcaneus was higher 2 months later (p = 0.002) as well as 3 months later (p = 0.002). Furthermore, the body percentage was strongly positively correlated with the calcaneus QUS-SI (p = 0.009).
These findings suggest that the calcaneus quantitative ultrasound status and muscle mass while losing fat mass may be improved by means of a simple exercise regimen within a short period among undergraduate female students.
本研究旨在确定家庭电路训练是否会影响大学生女性学生的跟骨定量超声状态以及身体成分的其他指标。
招募了 41 名青少年（18.5±0.6 岁）。测量跟骨的硬度指数、跟骨宽带超声衰减、跟骨声速和身体框架指数。这是一项为期三个月的干预研究，因此在基线、两个月后和三个月后进行测量，在此期间，受试者在家中进行了电路训练。受试者分为两组：运动组和非运动组。
在运动组中，2 个月后（p=0.033）和 3 个月后（p=0.036）跟骨宽带超声衰减较高，3 个月后（p=0.018）跟骨声速较高。此外，肌肉质量与跟骨 QUS-SOS 呈强正相关（p=0.004），而体脂百分比与跟骨 QUS-BUA 呈强负相关（p=0.043）。在非运动组中，2 个月后（p=0.002）和 3 个月后（p=0.002）跟骨硬度指数较高。此外，体脂百分比与跟骨 QUS-SI 呈强正相关（p=0.009）。
这些发现表明，在大学生女性学生中，通过短期的简单运动方案，可以改善跟骨定量超声状态和肌肉质量，同时减少脂肪量。
