Final answer:
The research study mentioned does not directly apply to the grandpa's situation of needing to keep up with his kids.
Step-by-step explanation:
While the research study mentioned measures muscular strength and maximum oxygen consumption, it does not directly apply to a grandpa's situation of needing to keep up with his kids. The study you found is specific to college football players and their performance in a strength development class.
This study aims to determine if the class improved the players' maximum lift on the bench press exercise. Therefore, the measured outcomes of the study do not directly address the grandpa's needs.