Monitoring stress protein in saliva to prevent impairment of physical condition in athletes and elderly individuals

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The purpose of this study was evaluating the availability of salivary HSP70 to assess the physical condition in athletes and elderly individuals. The salivary HSP70 was increased after the acute intensive exercise. In athletes, continuous intensive exercise did not markedly change resting salivary HSP70 levels. This result might be influenced by individual differences of HSP70 responses to intensive exercise. In elderly subjects, continuous moderate exercise training enhanced resting salivary HSP70. In addition, HSP70 might be involved with T-cell activation in response to exercise training. In conclusion, salivary HSP70 might be useful to assess the physical condition in elderly subjects, while it might require to consideration in athletes.