When athletes do their hardest sprints, how fast they go and how much lactic acid builds up in their blood can explain most of why their growth hormone spikes — it’s closely tied to how intensely their body is working.

43

Pro

0

Against

Evidence from Studies

Supporting (1)

43

Community contributions welcome

43

Growth hormone responses to treadmill sprinting in sprint- and endurance-trained athletes

Cross-Sectional Study

Human

1996

The study found that how hard someone sprints and how much lactic acid builds up explains most of the increase in growth hormone, just like the claim says.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Growth hormone responses to treadmill sprinting in sprint- and endurance-trained athletes

Score: 43

DOI: 10.1007/BF00242276

Similar Assertions

Sprint athletes get a much bigger spike in their growth hormone after a hard 30-second sprint than endurance athletes do — their bodies react differently because of their training.

43

0

81%

Doing really intense sprints gives your body a big, quick boost in growth hormone—up to 17 times more—which helps protect your muscles and burn fat.

43

0

75%

Even though the person gets much weaker during their 10th sprint compared to the first, their muscles aren’t producing more lactic acid — which is weird because their stress hormone (epinephrine) is high, and you’d expect lactic acid to rise. So something is shutting down the energy system that usually makes lactic acid.

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0

72%