"Tom Danielson's Core Advantage" by Tom Danielson and Allison Westfahl provides a progressive, bodyweight-focused training program designed to improve cycling efficiency and eliminate back pain through functional core strength. The guide replaces traditional crunches with exercises tailored to stabilize the spine and hips, featuring a three-level program ranging from injury prevention to maximum performance. For more details, visit Amazon.com
The PDF includes a diagnostic test. Can you hold a high side plank for 60 seconds without sagging your hips? If not, you are losing watts in every corner. "Tom Danielson's Core Advantage" by Tom Danielson and