Age difference in efficiency of locomotion and maximal power output in well-trained triathletes
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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.
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.
Cycling efficiency decreased beyond 50 years (50–59 years compared with 20–29 years: −7.3 ± 1.8 %; p < 0.05) and continued to decrease beyond 60 years (60–69 years compared with 50–59 years: −10.7 ± 2.4 %; p < 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 >70 years. Significant positive relationships were observed between maximal sprint power output and both cycling efficiency (r2 = 0.64, p < 0.05) and maximal aerobic power (r2 = 0.42 and p < 0.05).
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.
KeywordsAgeing Maximal sprint power output Cycling efficiency Muscle power Master athlete Aerobic capacity
Cycling gross efficiency
Maximal aerobic power
Peak sprint power output
Respiratory exchange ratio
Rate of perceived exertion
Carbon dioxide production
Maximal oxygen consumption:
First ventilatory threshold
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