Daily backpacker budget: $20 ~ $35. Bolivia is the ultimate cheapie of South America. Things may be very basic here as itâs a dirt poor country but your dollars sure go a long way. It is the cheapest country for accommodation and the cheapest for food and drink as well.
The plank strengthens the abdominals, back, and shoulders. Muscles involved in the front plank include: 1  Primary muscles: erector spinae, rectus abdominis (abs), and transverse abdominus.he plank strengthens the abdominals, back, and shoulders. Muscles involved in the front plank include: 1  Primary muscles: erector spinae, rectus abdominis (abs), and transverse abdominus.
Benefits of Side Plank Exercises. Side plank exercises target the gluteal muscles, obliques, quadriceps, hamstrings, thigh abductors and adductors. Strengthening these muscles means that your lower back and spine have more support and are better protected from injury caused by back strain and/or sudden movements. Side plank exercises also improve core strength; this means increased core stability, which translates into a stronger back and minimal soreness.