Doporučení iOS aplikace Plank Challenge 4 minutes 3.0

Na serveru Stahuj.cz je zajímavá iOS aplikace:

Plank Challenge 4 minutes 3.0

Plank - Strength training - exercise your abs, back and arms. The training program enables you to make the plank for 4 minutes after 5 weeks. Train for 4 days. Pause for 3 days. The break gives the muscles time to develop. Intensive strength in short periods of time, is an effective way to train…

Adresa: https://www.stahuj.cz/zdravi-a-fitness/plank-challenge-free/