Plank Challenge 4 minutes 对比 Plank 30 Days Challenge 的使用情况和统计数据

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 without risk of injury. Take the challenge: Make the plank for 4 minutes after 5 weeks of exercise. Make from 1-100 push-ups. Increase the number of push-ups in your own pace. Apple Music resumes if interrupted. ICON: https://www.iconfinder.com/stefania.servidio