The trainer Mary Layne, head of LifeStages Fitness, gave me some initial good news when we met at Fitness First in Reston, Va. My VO2 max score – the measure of the body’s ability to process oxygen – tested at 38. The therapist Speed, explosive power – none of this mattered to Richard Jackson, a physical therapist and owner of The Jackson Clinics in Northern Virginia, when he put me through his two-hour functional fitness exam. An imbalance in the core muscles, for example, means the stronger side overcompensates – and eventually something gets hurt. My sternum and clavicle had separated on the right side long ago – and fused in the wrong place. But the weak right hip and side muscles – they needed work to be brought into balance. read more
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