A single-session testing protocol to determine critical power and W%26apos;

作者：Constantini Keren; Sabapathy Surendran; Cross Troy J^*

来源：European Journal of Applied Physiology, 2014, 114(6): 1153-1161.

DOI：10.1007/s00421-014-2827-8

• Supramaximal exercise
• Aerobic fitness
• Cycling endurance

Critical power (CP), and the finite capacity to perform work above CP (W%26apos;), can be determined using a 3-min %26quot;all-out%26quot; cycling test (3MT). This protocol requires two laboratory visits: an incremental exercise test, followed by a 3MT on a separate day. The purpose of this study was to establish whether an incremental exercise test and a 3MT performed during a single laboratory visit can be used to accurately determine CP and W%26apos;. %26lt;br%26gt;Twelve participants completed two experimental protocols: (1) Combined protocol: an incremental exercise test followed by a 3MT, with 20 min of recovery between exercise bouts; and (2) Independent protocol: the conventional 3MT protocol, performed on a separate day. %26lt;br%26gt;CP determined from the Combined (254 +/- A 117 W) and Independent (256 +/- A 118 W) protocols were not different (p = 0.40). Similarly, W%26apos; was not different (p = 0.96) between the Combined (13.7 +/- A 3.9 kJ) and Independent (13.7 +/- A 4.5 kJ) protocols. Linear regression revealed a strong level of measurement agreement between the protocols for CP and W%26apos;, evidenced by high R (2) values (a parts per thousand yen0.85) and marginal standard errors of the estimates (CP = 5 W; W%26apos; = 1.81 kJ). %26lt;br%26gt;A Combined protocol, consisting of an incremental exercise test followed by a 3MT, provides an accurate and valid method to determine an individual%26apos;s CP and, to a lesser extent, W%26apos;. Furthermore, this protocol permits the measurement of the gas-exchange threshold and peak O-2 uptake and, consequently, the moderate, heavy, and severe exercise-intensity domains may be defined within a single exercise-testing session.

• 出版日期2014-6