You found it. After their solo weight training, men’s muscles were teeming with proteins and genetic markers known to initiate muscle growth. The same substances were found in abundance after exercise that included cycling, but were supplemented by other proteins and gene activity associated with improved endurance.
In fact, after dual training, the men’s muscles seemed prepared to gain both in size and endurance, with no evidence that bicycling had interfered with lifting at the molecular level. Instead, aerobic exercise appeared to have expanded and amplified the expected benefits of strength training.
“The most intriguing finding is that some biochemical factors induced by leg endurance training got into the bloodstream and could then affect processes in a completely different muscle group in a way that seems conducive to training adjustments in the arms . “, Said Dr. Moberg. “It is almost as if the endurance exercise of the legs is transferred to the arms to a certain extent.”
He also noted that the men lifted the same amount of weight on both arm workouts. Kicking hard with her legs hadn’t tired her arms.
“The paper is great,” said Dr. Michael Joyner, a physiologist and anesthetist at the Mayo Clinic in Rochester, Minn, who was not involved in the study. His finding, he added, that “legs may have triggered greater activation of important molecular pathways in the arms is a piece of cake.”
Of course, as in so many similar experiments, only men were involved in this study. “But there is no good reason to believe that the effects would be any different in women,” said Dr. Moberg, adding that he and his colleagues hope to include women with fewer biopsies in the upcoming experiments. This study was also short-term and looked at endurance training before strength training and not the other way around. Some previous experiments suggest that exercising at first has little effect on aerobic exercise afterwards. But these studies have focused on the legs, so it remains to be seen whether exercising your arms before cardio can be as worthwhile as the other way around.
But overall, the result of the results, said Dr. Moberg that it makes practical and physiological sense to begin a workout by exercising your legs and lungs before moving on to the torso lift. “It can be a time-efficient and potentially beneficial approach,” he said.