Rivera Jennifer, Pelka Edward Z, Gant Ryan W, Pinzone Anthony G, Tagesen Emily C, Lebron Modesto A, Jajtner Adam R
Exercise Physiology Program, Kent State University, Kent, OH, USA.
School of Kinesiology and Physical Therapy, University of Central Florida, Orlando, FL, USA.
Int J Exerc Sci. 2025 Jun 1;18(2):622-635. doi: 10.70252/OQIM2082. eCollection 2025.
The purpose of this investigation was to determine inter-set and inter-session reliability of the HUMAC360 measures for duration (DUR), peak velocity (PV) and mean velocity (MV) across three segments of the bench press. Seventeen recreationally active adults participated in this investigation. During visit one, participants completed a bench press one-repetition maximum (1RM). Visits two and three consisted of two sets of three repetitions at 30%-, 50%-, 60%-, and 70 %-1RM. Segments were defined by dividing total displacement into equal thirds at the bottom (BOT), middle (MID) and top (TOP). Intraclass correlation coefficients (ICC) and standard error of measurement (SEM) were used to assess reliability while paired samples t-tests were used to identify differences between sets or sessions with significance set at . Excellent ICCs were present for PV and MV at most intensities in each segment between sets, while ICCs for DUR varied. MV and PV displayed excellent ICCs at lower intensities across segments between sessions, with decreases at higher intensities, while variable inter- session reliability for DUR was present across intensities and segments. The HUMAC360 reliably measured MV and PV during each segment across sets, though caution is warranted for DUR.
本研究的目的是确定HUMAC360在卧推三个阶段中对持续时间(DUR)、峰值速度(PV)和平均速度(MV)测量的组间和会话间可靠性。17名有运动习惯的成年人参与了本研究。在第一次访视期间,参与者完成了一次卧推最大重复次数(1RM)测试。第二次和第三次访视包括两组,每组三次重复,负荷分别为30%、50%、60%和70%的1RM。阶段划分是将总位移在底部(BOT)、中部(MID)和顶部(TOP)三等分。组内相关系数(ICC)和测量标准误差(SEM)用于评估可靠性,而配对样本t检验用于确定组间或会话间的差异,显著性水平设定为 。每组各段中,大多数强度下PV和MV的ICC均为优秀,而DUR的ICC有所不同。会话间,较低强度下MV和PV的ICC优秀,较高强度下降低,而DUR在各强度和各段的会话间可靠性存在差异。HUMAC360在每组各段中均能可靠地测量MV和PV,但对于DUR测量需谨慎。