Guide · Thermal

Heat or cold for muscle recovery?

Cold for the first day after an acute injury, heat for stiffness and chronic tightness, contrast if you want to alternate. What matters more than the choice is knowing the actual temperature — and most products do not tell you.

Hyperice X cold

40 °F MIN

Hyperice X heat

121 °F MAX

Venom max

131 °F

Therabody temps

— UNPUBLISHED

THE PART THAT IS ACTUALLY DECIDABLE

Whether to use heat or cold in a given situation is a clinical question, and it depends on what is wrong. What is not a clinical question is whether the device tells you what temperature it reaches — and on that, the two brands behave very differently.

WHO PUBLISHES WHAT

Hyperice X 2 Knee and Shoulder — every one of five cold levels and five heat levels stated in °F and °C, plus five compression levels in mmHg.
Venom 2 Back, Leg and Shoulder — three heat levels stated: 113°F, 122°F, 131°F.
Venom Go — three heat levels stated: 105°F, 109°F, 113°F, plus separate runtimes for level one and level three.
Therabody RecoveryTherm Cube — no temperature published, hot or cold, at any level.

Worth knowing

That last line is the finding. A device sold on alternating heat and cold that does not tell you either temperature cannot be compared to one that does, at any price.

REGISTERED IS NOT CLEARED

The RecoveryTherm Cube's page says FDA Registered. Registration means a company has listed itself and its device with the FDA. It involves no review of the device. A 510(k) clearance means the FDA reviewed a submission and issued a K-number that anyone can look up. Normatec systems have K-numbers. Read the two claims differently, because they mean different things.

THE PRACTICAL ADVICE

Whatever you choose, start at the lowest setting and work up, and stop if the skin is uncomfortable rather than warm. If you are treating something you would describe as an injury rather than soreness, that is a question for a clinician, not a product page.