The hidden cost of leg day: 90 kg squats wreck the whole system
After a year without squats, just 90 kg triggered extreme fatigue, insomnia and a weakened immune system. Real-world data that questions the…
English · Original discussion in Spanish · Published
Leg training: the systemic punishment few are willing to take on
Ninety kilos on the bar. Six reps with two in reserve (RIR 2). After a year and a half without touching a squat, a moderate session seemed reasonable. The next day: energy crash, ravenous hunger, insomnia, inability to get out of bed and an immune system in the gutter. The squat, king of exercises, also exacts a systemic toll few anticipate.
The price of the squat: beyond soreness
The experience described by a fitness enthusiast (with a weightlifting past) illustrates it: after a single exercise — squats at 90 kg, six reps — the body responded with a cascade of symptoms lasting days. We are not just talking about muscle soreness (3.5 out of 5), but sleep disturbances that required medication, loss of appetite and general fatigue. "Cycling leaves your legs tired, but you recover in a day," he compared. The squat, by contrast, triggers a hormonal and neurological response that completely disrupts your body clock.
More efficient alternatives for the quads?
Faced with this drain, some experts advocate isolation exercises such as leg extensions. The argument: they stimulate the same muscle group with far less systemic fatigue. While the squat demands coordination, stabilization and a load on the central nervous system that lingers, extensions allow localized work without compromising hormonal balance. It is no coincidence that the protagonist of this story announces that his next leg session "will be limited to simple extensions and, at most, the leg press."
Between the cult of the compound lift and real efficiency, the debate is on. Is the squat's systemic toll worth it for muscle activation that might be achieved at a lower cost?
Ninety kilos on the bar. Six reps with two in reserve (RIR 2). After a year and a half without touching a squat, a moderate session seemed reasonable. The next day: energy crash, ravenous hunger, insomnia, inability to get out of bed and an immune system in the gutter. The squat, king of exercises, also exacts a systemic toll few anticipate.
The price of the squat: beyond soreness
The experience described by a fitness enthusiast (with a weightlifting past) illustrates it: after a single exercise — squats at 90 kg, six reps — the body responded with a cascade of symptoms lasting days. We are not just talking about muscle soreness (3.5 out of 5), but sleep disturbances that required medication, loss of appetite and general fatigue. "Cycling leaves your legs tired, but you recover in a day," he compared. The squat, by contrast, triggers a hormonal and neurological response that completely disrupts your body clock.
More efficient alternatives for the quads?
Faced with this drain, some experts advocate isolation exercises such as leg extensions. The argument: they stimulate the same muscle group with far less systemic fatigue. While the squat demands coordination, stabilization and a load on the central nervous system that lingers, extensions allow localized work without compromising hormonal balance. It is no coincidence that the protagonist of this story announces that his next leg session "will be limited to simple extensions and, at most, the leg press."
Between the cult of the compound lift and real efficiency, the debate is on. Is the squat's systemic toll worth it for muscle activation that might be achieved at a lower cost?
Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (31 replies).
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