Hi, thanks for using healthcare magic
At present there is no specified age range when dealing with blood pressure. A blood pressure reading is grouped as normal, prehypertensive ( the person does not have high blood pressure
as yet but is at risk), stage 1 high blood pressure and stage 2 high blood pressure.
A normal reading is a top value (systolic pressure) of less than 120 and a lower value (diastolic) of less than 80.
Prehypertension: systolic 120- 139 OR diastolic 80- 89
Stage 1: systolic 140-159 OR diastolic 90-99
Stage 2: systolic > 160 OR diastolic >100
Your reading would place you in the stage 1 category.
It is admirable to be concerned because even a small increase in blood pressure is associated with an increased risk of heart disease
Since you are physically active you may have to focus on dietary changes such as salt reduction, increased use of fruits and vegetables, increased use of water, eliminating juice and sodas, using low fat products.
There is a diet called the DASH diet
that has been designed for persons with high blood pressure.
If your blood pressure remains elevated despite the dietary changes then you need to consider the use of medication. The goal is less than 140/90 but if you can achieve lower that would be good.
I hope this helps