Abstract
The impact of combined aerobic and resistance exercise on Klotho (KL) secretion is unclear. Twelve healthy young men completed two randomized experimental trials: 1) resistance exercise (RE) and 2) resistance exercise with prior aerobic exercise (AE + RE). Following baseline blood pressure assessment and blood collection, the subjects in the RE trial maintained a supine position for 45 min, while the subjects in the AE + RE trial performed 45 min of aerobic exercise. After 45 min of resting or aerobic exercise, all subjects performed resistance exercise. Following resistance exercise, the subjects rested in a supine position for 60 min. Blood pressure assessment and blood collection were repeated. Aerobic and resistance exercise significantly increased serum KL concentrations, respectively (P < 0.05), and no additive effect of aerobic exercise on KL secretion was observed immediately after resistance exercise in the AE + RE trial compared with the RE trial. However, serum KL levels at 30 and 60 min after resistance exercise were significantly higher in the AE + RE trial than in the RE trial. Serum ET-1 concentrations were significantly increased only in the RE trial. In conclusion, combined aerobic and resistance exercise could maintain higher levels of serum KL secretion after exercise compared with resistance exercise only.
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