Exercise May Boost Your Vaccine Response
So, for the new studies, scientists from Saarland University in Germany and other institutions decided to convince a large group of competitive athletes to get vaccinated, an effort more difficult than most of us might expect. In surveys, elite athletes tend to report relatively low rates of vaccination for the flu and other conditions, since many worry the shot will cause side effects that affect their training.
But the researchers managed to recruit 45 fit, young, elite athletes, male and female. Their sports ranged from endurance events, like the marathon, to power sports, including wrestling and hammer throw, to team sports, such as basketball and badminton. All of the volunteers were in the middle of their competitive seasons during the studies.
For the first of the two experiments involving these athletes, which was published in January in Brain, Behavior, and Immunity, the researchers hoped to establish whether being an athlete and having an athlete’s outsized fitness would goose or impede the young people’s immune reaction to a flu shot. So, the scientists also recruited an additional 25 young people who were healthy but not athletes to serve as a control group. They drew blood from everyone.
Afterward, all of the young people received a flu shot and kept notes about any side effects they felt, such as a sore arm. The groups returned to the lab for follow-up blood draws a week, two weeks and six months after the vaccination. Then the researchers checked their blood for anti-influenza immune cells and antibodies.
They found significantly more of those cells in the athletes’ blood, especially in the week after the shot, when everyone’s cellular reactions peaked. The athletes showed a “more pronounced immune response,” with presumably better protection against flu infection than the other young people, says Martina Sester, an immunologist at Saarland University and study co-author.
Article source: https://www.nytimes.com/2020/08/26/well/move/exercise-may-boost-your-vaccine-response.html