There are countless drills you can try to build some length in the long head of the triceps (really anything with overhead reaching). That said, the bench t-spine mobilization is definitely my favorite because it gives a great triceps and lat stretch while building some thoracic spine extension mobility, anterior core stability, and deep neck flexor recruitment simultaneously.
Key Coaching Points
- Make sure you're in full elbow flexion in the bottom position.
- Make a double chin so that you don't drift into forward head posture.
- As you rock back, brace the anterior core and focus on extending through the upper back and flexing through the shoulders, rather than just arching the lower back.