Why plank?
Plank is an isometric exercise that engages your entire core simultaneously — rectus abdominis, obliques, lower back, glutes, and hip flexors. 29 muscles activated at once.
Benefits:
- Flatter abdomen
- Reduced back pain
- Better posture
- Core strength foundation
Proper plank form
- Face down, elbows directly under shoulders
- Toes gripping the floor
- Body straight as a board — shoulders to heels
- Look down — neck neutral
- Engage abs + glutes
- Breathe normally — don't hold!
Common mistakes
❌ Hips sagging — strains lower back
❌ Hips raised — reduces core engagement
❌ Looking up — neck strain
✅ Straight line — perfect plank
Goals by level
| Level | Duration |
|-------|----------|
| Beginner | 30 seconds |
| Standard | 60 seconds ← target |
| Intermediate | 2 minutes |
| Advanced | 3-5 minutes |
| Pro | 5+ minutes |
World record: 9 hours 38 minutes (George Hood, USA, age 62)
Progressions
Once 60 seconds is easy:
- Side Plank — 30 sec each side
- Plank Up-Down — alternate elbows to hands
- Plank with Knee Tap
- Plank Jacks — jump feet wide/narrow
Train 5 days/week with 2 rest days for recovery.