Research indicates that standard strength training (for example, sets of 10 repetitions with approx. 75% of maximum resistance) does not raise blood pressure to unsafe levels during exercise performance.
Also, weight lifting alone or in combination with aerobic activity is effective for reducing resting blood pressure for individuals with high blood pressure after two months of consistent training.
However, research suggest that weight lifting to a point of failure has the increased potential of raising blood pressure beyond recommended levels. Therefore, those individuals with high blood pressure should keep this factor in mind when weight training.