O2TRAINEREU's profile picture. More air, maximum endurance. Better than altitude training. Within 6 weeks till 30% more endurance. Use it on the Tacx Cross trainer, with running or biking

O2 Trainer Europe

@O2TRAINEREU

More air, maximum endurance. Better than altitude training. Within 6 weeks till 30% more endurance. Use it on the Tacx Cross trainer, with running or biking

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