As an example, the forward-leaning, crouched position adopted by roadies and track cyclists tends to make the hip flexors tighten and shorten (“every cyclist I know has hip flexor tightness,” says Simpson) causing an anterior pelvic tilt and an excessively arched lower back.
“Postural changes like this can lead to chronic problems such as lower back pain that will affect your daily activities, not to mention your riding, in the long-term,” he adds. Bogue agrees. “If muscles get tight, they pull on bones and put things out of alignment, increasing the risk of pain, discomfort and injury,” she says.
But poor flexibility – and its consequences – don’t just give you bad posture and hike up your injury risk, your cycling performance is at stake, too. “You need a good range of motion in the hips and lower back to achieve an aerodynamic time-trial position,” says Graham Anderson, a physiotherapist who has worked with everyone from Olympic cyclists to weekend warriors.
“Without it, your power output will be reduced because you won’t be able to get maximal force from the gluteal muscles. What’s more, if you have a stiff lower back, you’ll typically overreach with the arms, putting too much weight on the hands and causing tightness across the upper back and neck.”