Assessment of Standing Multi-Frequency Bioimpedance Analyzer to Measure Body Composition of the Whole Body and Limbs in Elite Male Wrestlers.

We investigated differences in body composition measurements for the whole body and limb segments in elite male wrestlers between results of multi-frequency bioelectrical impedance analyses (MF) and dual energy X-ray absorptiometry (DXA). Sixty-six elite male wrestlers from Taiwan were recruited. Wrestlers' body fat percentage (PBF), whole body fat-free mass (FFM), whole body lean soft tissue mass (LSTM), and fat-free mass of arms, legs and trunk (FM, FFM, FFM) were measured by MF and DXA, and analyzed using Pearson correlation coefficient and Bland-Altman plot.

Effects of an Acute Bout of Light-Intensity Walking on Sleep in Older Women With Sleep Impairment: A Randomized Controlled Trial.

Study Objectives: This study aimed to explore the effects of a single bout of light-intensity walking on sleep in older women with mild sleep impairment.

Methods: A total of 40 women aged 55 years or older with mild sleep impairment were randomized to either a treadmill walking session for 50 minutes or a quiet-rest control. All participants completed the study (mean age: 60.

Fitness change and subsequent academic performance in adolescents.

Background: This study examined the association between fitness change and subsequent academic performance in Taiwanese schoolchildren from 7th grade to 9th grade.

Methods: The 7th graders from 1 junior high school district participated in this study (N = 669). Academic performance was extracted from school records at the end of each grade.