100m Sprint

Hello friends. several years doing sprints at 100 meters , well run and accelerate harder but maintains speed after 70 meters. do you think that will improve resistance by segments of 150 - 200 meters

Yep, if its hard to maintain speed after 70 meters,
definitely run 150m or 200m to help your speed endurance.

power train are in my room with squat,bench press and traction with 1-- 4 reps and heavy weights 3 and 2 sprints.Can anyone answer me after I major force in the hall and began to sprint you work desreased weights from to 50 - 60 % of maximum. 4 months I trained Max room and sprins but I did load Kills