Centre for Elite Sports Research, Department of Neuromedicine and Movement Sciences, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway.
Department of Physical Medicine and Rehabilitation, Clinic for Spinal Cord Injuries, St. Olavs University Hospital, Trondheim, Norway.
Eur J Appl Physiol. 2019 Sep;119(9):2025-2031. doi: 10.1007/s00421-019-04189-4. Epub 2019 Jul 16.
To compare the effects of test protocols with different increments in workload and duration on peak oxygen uptake ([Formula: see text]O), and related physiological parameters during seated upper-body poling (UBP).
Thirteen upper-body trained, male individuals completed four UBP test protocols with increments in workload until volitional exhaustion in a counterbalanced order: 20 W increase/every 30 s, 20 W/60 s, 10 W/30 s and 10 W/60 s. Cardio-respiratory parameters and power output were measured throughout the duration of each test. Peak blood lactate concentration (bLa) was measured after each test.
The mixed model analysis revealed no overall effect of test protocol on [Formula: see text]O, peak minute ventilation (VE), peak heart rate (HR), bLa (all p ≥ 0.350), whereas an overall effect of test protocol was found on peak power output (PO) (p = 0.0001), respiratory exchange ratio (RER) (p = 0.024) and test duration (p < 0.001). There was no difference in PO between the 20 W/60 s (175 ± 25 W) and 10 W/30 s test (169 ± 27 W; p = 0.092), whereas PO was lower in the 10 W/60 s test (152 ± 21 W) and higher in the 20 W/30 s test (189 ± 30 W) compared to the other tests (all p = 0.001). In addition, RER was 9.9% higher in the 20 W/30 s compared to the 10 W/60 s test protocol (p = 0.003).
The UBP test protocols with different increments in workload and duration did not influence [Formula: see text]O, and can therefore be used interchangeably when [Formula: see text]O is the primary outcome. However, PO and RER depend upon the test protocol applied and the UBP test protocols can, therefore, not be used interchangeably when the latter is the primary outcome parameter.
比较不同工作量和持续时间增量的测试方案对上半身撑杆（UBP）时峰值摄氧量（[Formula: see text]O）和相关生理参数的影响。
13 名经过上半身训练的男性以平衡的方式依次完成了四种带有工作量增量的 UBP 测试方案，直至自愿力竭：20 W 递增/每 30 秒、20 W/60 秒、10 W/30 秒和 10 W/60 秒。在每次测试的整个过程中测量心肺参数和功率输出。每次测试后测量峰值血乳酸浓度（bLa）。
混合模型分析显示，测试方案对[Formula: see text]O、峰值分钟通气量（VE）、峰值心率（HR）和 bLa（所有 p≥0.350）没有总体影响，而对峰值功率输出（PO）（p=0.0001）、呼吸交换比（RER）（p=0.024）和测试持续时间（p<0.001）有总体影响。20 W/60 秒（175±25 W）和 10 W/30 秒测试之间的 PO 没有差异（p=0.092），而 10 W/60 秒测试的 PO 较低（152±21 W），20 W/30 秒测试的 PO 较高（189±30 W），与其他测试相比均具有统计学差异（所有 p=0.001）。此外，20 W/30 秒测试的 RER 比 10 W/60 秒测试高 9.9%（p=0.003）。
不同工作量和持续时间增量的 UBP 测试方案对[Formula: see text]O 没有影响，因此当[Formula: see text]O 是主要结果时，可以交替使用。然而，PO 和 RER 取决于所应用的测试方案，因此当后者是主要结果参数时，UBP 测试方案不能交替使用。
