Contrast Therapy: How Sauna and Cryotherapy Work Together

The Quick Answer

Contrast therapy is the practice of alternating heat exposure with cold exposure in the same session, usually sauna followed by cold. Research suggests the heat-then-cold cycle may support muscle recovery and reduce soreness after hard training. A meta-analysis of contrast water therapy found it reduced muscle soreness and strength loss compared with passive rest across the 6 to 96 hour recovery window.¹ At Defiant in Lisle, contrast therapy pairs an infrared or dry heat sauna session with whole-body cryotherapy in an Everest CryoBuilt chamber. We use cryotherapy rather than a cold plunge.

Contrast therapy means alternating heat and cold to support recovery. You warm the body in a sauna, then cool it fast in a cryotherapy chamber, and repeat the cycle. The swing between hot and cold is the point: heat opens blood vessels, cold tightens them, and the back and forth acts like a pump for circulation.

This post covers what contrast therapy actually does, what the research supports, how to structure a session, and how Defiant runs it in Lisle using an infrared and dry heat sauna paired with a whole-body cryotherapy chamber.

What contrast therapy is

Contrast therapy is alternating exposure to heat and cold in a single session. The classic version is contrast water therapy, switching between hot and cold baths, which is where most of the research comes from. The modern version swaps water for two pieces of equipment: an infrared sauna in Lisle, IL for the heat and a whole-body cryotherapy chamber in Lisle for the cold.

The logic is simple. Heat widens your blood vessels and increases blood flow to the skin and muscles. Cold narrows them and pulls blood back toward your core. Cycle between the two and you create repeated expansion and contraction in your circulatory system.

How the heat and cold cycle works

Each side of the cycle does something different.

What contrast therapy may support

The honest framing: the evidence is strongest for recovery and soreness, and lighter for everything else. Here is what research suggests.

Muscle recovery and less soreness. A systematic review and meta-analysis of contrast water therapy found it produced significantly less muscle soreness and less strength loss than passive rest at every measured point from 6 to 96 hours after exercise.¹ The authors noted the effect was comparable to other active recovery methods rather than clearly superior, so contrast therapy is best seen as one solid recovery tool among several.

Heat exposure and cardiovascular health. The sauna side has its own body of research. In a long-running study of Finnish men, frequent sauna bathing was associated with lower rates of fatal cardiovascular events and all-cause mortality over about 20 years of follow-up.³ This is an association from observational data, not proof that sauna use causes longer life, but the signal is consistent.

Cold exposure and recovery. Cold water immersion and cryotherapy have been studied for reducing exercise-induced muscle damage and soreness, with cold most effective in the early recovery window.⁴ Many clients also report a mood and alertness lift after the cold phase.

Contrast therapy is a recovery tool. It is not a treatment for any disease, a weight loss method, or a substitute for sleep, protein, and training. Used well, it may support how you feel and perform.

Sauna and cryotherapy, side by side

How to structure a session

There is no single official protocol, but a practical contrast session usually looks like this:

1. Warm up in the sauna for 10 to 15 minutes until you are sweating and your muscles feel loose.
2. Move to cryotherapy for a full cold cycle, up to about three and a half minutes.
3. Repeat the hot and cold rounds two to three times if you have time.
4. Finish on whichever phase fits your goal. Many people end on cold for an alert, recovered feeling.

Hydrate before and after, and listen to your body. If you are pregnant or have a heart condition, uncontrolled blood pressure, or another medical concern, talk to your provider before starting heat or cold therapy. A provider can help you decide whether contrast therapy is a good fit and how to ease into it.

Who it is for

Contrast therapy tends to appeal to two kinds of people. The first is the athlete or active adult chasing better recovery between hard sessions, who wants soreness down and circulation up. The second is the everyday human who trains, sits at a desk, or just wants a recovery ritual that leaves them feeling loose and clear-headed.

It pairs naturally with other recovery tools. Some clients add hyperbaric oxygen therapy or a recovery IV on the same day, or book a massage to round out a recovery block.

Contrast therapy at Defiant in Lisle

Defiant runs contrast therapy with two pieces of equipment under one roof. The Radia IR 300 is a hybrid cabin that runs as either an infrared session or a traditional dry heat session, so you can pick your heat style. The Everest CryoBuilt chamber handles the cold side, with sessions capped at three and a half minutes. We use whole-body cryotherapy, not a cold plunge.

Pricing is straightforward. A 30 minute sauna session is $45 and a single cryotherapy session is $50, with a new client first session of $25 for each. If contrast therapy becomes part of your routine, unlimited monthly cryotherapy is $299, and several membership tiers include sauna and cryotherapy credits each month.

We are based at 5100 Lincoln Ave in Lisle, serving Naperville, Downers Grove, Wheaton, and Chicago's western suburbs.

Common Questions

Last updated June 18, 2026.