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24hr Growth Hormone Release Post Exercise

In a recent study, printed in the ACSM's Medicine&Science in Sports&Exercise, researchers examined the effects of various exercise modes on the release of human growth hormones during the 24 hour period post exercise. In the study 8 healthy men were tested under 5 separate conditions and blood samples were taken. These conditions included no exercise; a 1 hour or 2 hour aerobic session; or a 1 hour or 2 hour resistance training session. The results showed that only the 2 hour aerobic group had a significant increase in growth hormone release. The study concluded that the increased energy demands from the endurance bout is what causes the increased release of GH. It then went on to suggest increasing aerobic activities from 1 hour to 2 hours. Other than runners who wants to do that? Who has time for that? 

Combining aerobic and resistance training has been shown to increase energy demands. Results from studies and with private clients show that this combination can cause significant gains in both aerobic capacity (VO2max) and strength gains (1RM). Combined training requires twice as many calories as training separately and reduces time spent working out in half. Future studies should examine hormone profiles during combined training. Perhaps 1 hour of combined training may have a similar profile to that of the 2 hour aerobic bout? Plus the benefits of resistance training? You can't beat it! But you can get it if you want it at 24kt Fitness Studio. 

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