The Claim

In young, weight-trained males undergoing two weeks of daily heavy strength training, individual changes in leg press strength are positively correlated with changes in morning testosterone concentration (r = 0.69), indicating a potential association between fluctuations in anabolic hormones and strength adaptations during intense training.

Source: Changes in human skeletal muscle contractility and hormone status during 2 weeks of heavy strength training

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
39score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

When young guys who lift weights regularly do intense leg workouts for two weeks, those who gain more strength also tend to have bigger increases in their morning testosterone levels.

See the scientific wording

Among young, weight-trained males undergoing 2 weeks of daily heavy strength training, individual changes in leg press strength are positively correlated with changes in morning testosterone concentration (r = 0.69), suggesting a potential link between anabolic hormone fluctuations and strength adaptation during intense training.

What the research says

1 study
  1. Study: Changes in human skeletal muscle contractility and hormone status during 2 weeks of heavy strength training

    The study found that as testosterone levels changed during training, strength changes tended to follow in the same direction, which supports the idea that testosterone may play a role in gaining strength during intense workouts.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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