Even when accounting for factors like age, weight, and insulin levels, higher IGF-I still links to better muscle energy recovery in obese people with low growth hormone.

Even when accounting for factors like age, weight, and insulin levels, higher IGF-I still links to better muscle energy recovery in obese people with low growth hormone.

When IGF-I levels go up in obese people with low growth hormone, their muscle's ability to recover energy after exercise also improves, and this connection is statistically significant.

When IGF-I levels go up in obese people with low growth hormone, their muscles recover energy faster after exercise, and this connection is statistically significant.

When only looking at the best-quality muscle energy recovery data, higher IGF-I still links to better recovery in obese people with low growth hormone.

Even when accounting for differences in weight, fitness, and blood sugar, the more IGF-I went up, the better the muscle energy recovery — meaning IGF-I likely has a direct role.