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J Appl Physiol (June 6, 2003). doi:10.1152/japplphysiol.00983.2002
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Submitted on October 24, 2002
Accepted on June 4, 2003

Maximal intermittent cycling exercise: effects of recovery duration and gender

Francois Billaut1, Magali Giacomoni1, and Guy Falgairette1*

1 Laboratoire Ergonomie Sportive et Performance - EA 3162, Universite de Toulon et du Var, LA GARDE, France

* To whom correspondence should be addressed. E-mail: falgairette{at}univ-tln.fr.

This study aimed to evaluate potential gender differences in recovery of power output during repeated all-out cycling exercise. Twenty men and thirteen women performed 4 series of 2 sprints (Sp1, Sp2) of 8 s, separated by 15, 30, 60 and 120-s recovery. Peak power (Ppeak), power at the 8th second (P8s), total mechanical work (W) and time to Ppeak (tPpeak) were calculated for each sprint. Ppeak and W decreased significantly between Sp1 and Sp2 after 15-s recovery in both men (-6.4% and -9.4%, respectively) and women (-7.4% and -6.8%, respectively). tPpeak did not change between recovery durations but women reached their peak power more slowly than men (on average: 5.15 ± 1.2 s and 3.8 ± 1.2 s, respectively; P < 0.01). During Sp1 and Sp2, linear regressions from Ppeak to P8s showed a greater power decrease (%Ppeak) in women compared to men (P < 0.05). In conclusion, patterns of power output recovery between two consecutive short bouts were similar in men and women, in spite of lower overall performance and greater fatigability during sprints in women.




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