Age difference in efficiency of locomotion and maximal power output in well-trained triathletes

作者：Brisswalter Jeanick^*; Wu Sam S X; Sultana Frederic; Bernard Thierry; Abbiss Chris R

来源：European Journal of Applied Physiology, 2014, 114(12): 2579-2586.

DOI：10.1007/s00421-014-2977-8

• Ageing
• Maximal sprint power output
• Cycling efficiency
• Muscle power
• Master athlete
• Aerobic capacity

The aim of this study was to examine the influence of age on cycling efficiency and sprint power output in well-trained endurance masters athletes. %26lt;br%26gt;The investigation was conducted on 60 healthy well-trained triathletes separated into six separate groups (n = 10) depending on age: 20-29 years old; 30-39 years old; 40-49 years old; 50-59 years old; 60-69 years old; 70 years old. Each participant attended the laboratory on three separate occasions to perform (1) an incremental cycling test, (2) maximal peak sprint power test, involving three 5-s sprint efforts (3) and a 10-min sub-maximal cycling test for determination of cycling efficiency. %26lt;br%26gt;Cycling efficiency decreased beyond 50 years (50-59 years compared with 20-29 years: -7.3 +/- A 1.8 %; p %26lt; 0.05) and continued to decrease beyond 60 years (60-69 years compared with 50-59 years: -10.7 +/- A 2.4 %; p %26lt; 0.05), no further decrease was observed after 70 years. A continuous impairment in maximal sprint power output was observed after the age of 50 years leading to an overall decrease of 36 % between 20-29 years and %26gt; 70 years. Significant positive relationships were observed between maximal sprint power output and both cycling efficiency (r (2) = 0.64, p %26lt; 0.05) and maximal aerobic power (r (2) = 0.42 and p %26lt; 0.05). %26lt;br%26gt;The present data indicates a significant effect of ageing on cycling efficiency and maximal sprint power output after 50 years and a significant relationship was found between these two parameters.

• 出版日期2014-12