ABSTRACT

The purpose was to determine the effect of 30-minutes of moderate intensity (45–55% of heart rate reserve) on post-exercise (PE) body composition (BC) measurements. Pre-exercise (PreE) BC measurements were taken using air displacement plethysmography (ADP) and bioelectrical impedance analysis including lower-body (LBIA), whole-body (WBIA), and upper-body (UBIA). Forty-eight participants (27 females) were assigned to an exercise condition along with 25 (12 females) to the control condition. BC measurements were recorded immediate PE (PE0), 15-minutes PE (PE15), and 30-minutes PE (PE30). PreE body fat percent (BF%) measurements were 19.7 ± 7.7%, 22.2 ± 9.5%, 24.5 ± 8.8%, and 26.0 ± 8.5% for the UBIA, ADP, LBIA, and WBIA. There was no effect of exercise on UBIA or WBIA. Decreases in PE BF% measurements using ADP and LBIA were found (~2.5%). ADP BF% at PreE was equivalent to PE30, but post-exercise BF% measures remained for LBIA. Therefore, it is reasonable to measure body composition via ADP at PE30.

摘要

目的是确定30分钟中等强度（心率储备的45-55％）对运动后（PE）身体成分（BC）测量的影响。运动前（PreE）BC测量是使用空气体积体积描记法（ADP）和生物电阻抗分析进行的，包括下身（LBIA），全身（WBIA）和上身（UBIA）。48名参与者（27名女性）被分配为运动状态，而25名参与者（12名女性）被分配为控制状态。BC测量记录为立即PE（PE0），15分钟PE（PE15）和30分钟PE（PE30）。UBIA，ADP，LBIA和WBIA的PreE体脂肪百分比（BF％）测量值分别为19.7±7.7％，22.2±9.5％，24.5±8.8％和26.0±8.5％。锻炼对UBIA或WBIA没有影响。发现使用ADP和LBIA的PE BF％测量值降低（〜2.5％）。PreE的ADP BF％与PE30相当，但是LBIA的运动后BF％指标仍然有效。因此，在PE30上通过ADP测量身体成分是合理的。