Can We Improve the Functional Threshold Power Test by Adding High-Intensity Priming Arm-Crank?

Area of Science:

• Exercise Physiology
• Sports Science
• Cycling Performance

Background:

• Priming exercise can enhance subsequent performance.
• The specific effects of arm-crank priming on cycling performance require further investigation.

Purpose of the Study:

• To evaluate the impact of arm-crank induced priming on a 20-minute Functional Threshold Power Test in well-trained male cyclists.
• To analyze the physiological responses, including anaerobic energy contribution, during the test with and without priming.

Main Methods:

• 11 well-trained male cyclists completed two maximal performance tests (MPTs) in a randomized order: one with a standard warm-up (MPTlow) and one with added arm-crank priming (MPThigh).
• The MPT involved a 20-minute constant intensity phase followed by a 3-minute all-out spurt.
• Physiological measures including blood lactate and V˙CO2 were used to assess energy production.

Main Results:

• No statistically significant difference in the final 3-minute all-out spurt power between MPTlow and MPThigh.
• Significantly higher blood lactate levels were observed before the start of MPThigh compared to MPTlow.
• Priming led to a significantly higher anaerobic energy contribution during the MPTlow condition.

Conclusions:

• Arm-crank priming did not alter group mean performance in the 20-minute Functional Threshold Power Test for cyclists.
• Priming significantly reduced the reliance on anaerobic energy production.
• The performance effects of priming appear to be individual, warranting further research into personalized application.