Unit 5: Flexibility and Balance · Lesson 7
Flexibility and Balance - Lesson 7
What this lesson is for
- Explain how forward-head posture develops from screen time and chest/shoulder tightness
- Perform four upper body stretches (doorway chest, cross-body shoulder, thoracic extension, neck side) with correct form
What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own?
1 Corinthians 6:19
Upper Body Flexibility
Most flexibility discussions focus on the lower body, but upper body tightness — particularly in the chest, shoulders, and thoracic spine — is increasingly common among students and has significant consequences for posture and health.
The forward-head posture epidemic: Hours of screen time — phones, tablets, computers — create a predictable pattern: the head drifts forward, the chin drops, the upper back rounds, and the shoulders roll inward. This is called forward-head posture or kyphotic posture, and it is now pervasive among teenagers. For every inch your head moves forward from its neutral position over your spine, the effective load on the cervical spine roughly doubles. The muscles of the upper back and neck are constantly working to support it.
Chest and shoulder tightness is the structural cause. When the pectoral muscles (chest) shorten from being in a forward position, and the anterior deltoids (front shoulders) follow, the shoulder blades pull apart and forward, making it difficult to maintain an upright posture even when you try.
Key upper body stretches:
- Doorway chest stretch: Stand in a doorway, place forearms on the door frame at 90 degrees, step forward until you feel a stretch across your chest. Hold 30 seconds.
- Cross-body shoulder stretch: Bring one arm across your chest; use the other hand to apply gentle pressure. Hold 30 seconds each side.
- Thoracic extension: Place a foam roller or rolled towel across your mid-back; gently extend over it. This opens the thoracic spine that rounds from screen use.
- Neck side stretch: Slowly tilt your ear toward your shoulder. Do not force — gravity is sufficient.
"I praise thee; for I am fearfully and wonderfully made." (Psalm 139:14)
The spine was designed for upright, balanced posture. Restoring it requires intentional effort against modern habits.
Practice: Complete all four upper body stretches. Then notice your posture for the next hour. How often does it slip back into forward-head position?
Homework
Do the doorway chest stretch and cross-body shoulder stretch once daily this week, and check your posture in a mirror at least once a day.
Note for the parent
Today's lesson covers Flexibility and Balance - Lesson 7. Estimated time: 35 minutes. Encourage independent work but be available for questions.
The first three of this lesson's 10 questions
The forward-head posture epidemic described in the lesson is caused primarily by:
Show the answer
Answer: Hours of screen time creating a pattern of the head drifting forward and shoulders rounding inward
For every inch the head moves forward from its neutral position, the effective load on the cervical spine increases by approximately:
Show the answer
Answer: 10 pounds
The doorway chest stretch targets which muscle group?
Show the answer
Answer: Pectorals (chest) and anterior deltoids
Another 7 questions follow in the lesson itself, each one graded the moment it is answered.