An user French
says…

Lorsqu'elles  sont
Auxiliary
  pratiquées
Verb
  régulièrement
Adverb
elles
Pronoun
  permettent
Verb
 d'améliorer  la
Determiner
  capacité
Noun
  cardiovasculaire
Adjective
.

When practiced regularly, they improve cardiovascular capacity.
Words and sentences
New
sont

third-person plural present indicative of être

New
pratiquées

feminine plural of pratiqué

New
régulièrement

regularly (frequently)

New
elles

New
permettent

third-person plural present indicative/subjunctive of permettre

New
la

New
capacité

New
cardiovasculaire

of the circulatory system; cardiovascular

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