How to Use Resisted Swimming to Enhance Freestyle Technique

Swimmers depend on environment friendly method to get their chlorinated bottoms to the opposite finish of the pool with out cranking up the power price.

The extra environment friendly you possibly can swim, the longer you possibly can swim, and when mixed with added drive, the sooner you’ll go.

To enhance method, swimmers typically flip to drills. Whether it’s single-arm to work rotation, closed fist to enhance forearm place, or lengthy canine paddle to dial within the catch, the acknowledged objective with drills is to spice up full-stroke effectivity.

An various to drills is utilizing resisted or tethered swimming at low intensities. Which sounds counter-intuitive. Resisted swimming tools like chutes, tubing, tethers, and energy racks are sometimes used to extend stroke energy and power.

But used at a decrease depth, it’s a constraint that naturally promotes higher method.

Here’s how this occurs.

Resisted Swimming Strengthens the Feedback

To perceive why resisted swimming might be triple-A superior for higher method, it’s useful to have a look at how the way in which we work together with the water adjustments once we add load.

In common swimming, once we transfer ahead by the water there’s a steady stream across the physique. This stream gives suggestions which guides our choices on the place we place our legs and arms and the way we roll our physique.

But once we use a extremely asymmetrical pull, or roll too far, or the hips sink, the implications might be so refined that we don’t actually course of it. Momentum has a means of masking up these method errors.

By including load or a tether, ahead velocity decreases massive time (or to just about zero within the case of a tether). That stabilizing stream disappears and now lateral or inefficient actions that went undetected create a a lot stronger sign.

Asymmetry within the pull, extreme roll, propulsive gaps within the arm cycle—these items get felt instantly and clearly. Even when you aren’t actively eager about it, your physique is wise sufficient to self-organize in response to inefficient motion.

And that’s what makes tethered/resisted swimming such a strong technical software—stroke errors get amplified, which supplies the nervous system a stronger corrective sign, which then opens the door for swimmers to unravel the issue in a means that’s superior to drills.

How Tethered Swimming Changes Technique

That all sounds pretty, however how does this really work?

A few research checked out precisely this concept—low depth tethered swimming—to see what sort of affect it had on method and swimming efficiency.

The first research—Skorulski et al. (2025) examined the results of two months of “technical tethered swimming” with a gaggle of swimmers. Once per week, swimmers did the next set:

• 6×10 tethered stroke cycles + 10 seconds relaxation
• 150 freestyle swim with a snorkel

There have been no particular ongoing method cues or instructions—swimmers have been solely instructed to swim at low depth (effectively beneath threshold) and to give attention to an extended stroke and sluggish execution of actions. No sprinty stuff.

Alongside the tethered group, a management group did 45 minutes of freestyle drills, together with classics like one-arm freestyle and catch-up.

After the 2 months, the tethered group of swimmers had considerably extra secure physique place within the water, together with:

• Better management when turning to the non-dominant facet to breathe
• Reduced extra physique roll
• Less lateral motion

The management group, which did 45 minutes of your customary freestyle drills every week, went the different path, growing yaw rotation, physique roll, and growing rotation velocity (not a superb factor, on this case).

Drills appeared to bolster present technical errors (additionally not a superb factor).

The tethered group, with no drills or particular technical cues to take action, naturally shifted in direction of a straighter, cleaner bodyline when swimming.

Tethered Technical Swimming Can Boost Stroke Length

Stroke size is among the ways in which swimmers and coaches monitor effectivity within the water. Loosely talking, the less strokes you are taking, the extra environment friendly your method, the sooner you’re going to go.

Another, more moderen research (Skorulski et al., 2026) by the identical group of researchers regarded on the speedy results of low-intensity tethered swimming.

Using a crossover design, swimmers both did:

• 6×10 stroke cycles whereas tethered + 10s relaxation
• Low depth with a give attention to stroke size and good physique place

Or:

• 6×50 swim freestyle
• Low depth, identical method focus

Right after, swimmers did a 50m freestyle all-out. And wouldn’t ya comprehend it, the tethered situation produced some attention-grabbing method adjustments:

• Stroke size elevated by a major chunk—a couple of 5% bounce
• Swimmers confirmed much less side-to-side motion
• Better physique alignment (much less up and down motion within the hips/pelvis)
• Improved 50m freestyle instances by ~0.30 seconds

Given the recognition of post-activation potentiation work with swimmers, this presents another approach to “prime” swimmers for a superb set, time trial, or doubtlessly a race.

PAP protocols sometimes require max effort, high-stress actions to create that potentiation window—this research means that some of that very same great things might be generated with out having utilizing max depth.

Along, in fact, with the method advantages.

The Bottom Line

The enjoyable takeaway from this idea is that it’s not about making the stroke tougher, however making stroke errors simpler to really feel.

By including resistance, we amplify these sneaky lateral actions, wobbles, extreme rotations and ineffective drive functions.

• A crooked pull will get extra crooked
• Excessive physique sway turns into extra apparent
• Sagging hips attempt to get soggier
• Propulsive gaps within the stroke get you pulled backwards

There’s a lot that goes into environment friendly method. One of the issues with drills is that once you attempt altering one a part of the stroke, you find yourself altering one thing else.

Applying the constraint of resistance provides your physique an opportunity to self-organize in a means that naturally promotes higher method. And it’s performed throughout the context of full-stroke swimming as an alternative of isolating one thing and attempting to jam it into your stroke.

Give it a shot on the pool this week, let your physique resolve the challenges of transferring extra effectively by the water, and tether your self to raised method.

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ABOUT OLIVIER POIRIER-LEROY

Olivier Poirier-Leroy is a former nationwide stage swimmer, 2x Olympic Trials qualifier, and writer of a number of books for swimmers, together with YourSwimBook, Conquer the Pool, The Dolphin Kick Manual, and most not too long ago, The 50 Freestyle Blueprint.

The guide is a beastly 220+ pages of evidence-based insights and sensible suggestions for enhancing freestyle dash velocity.

It particulars every thing from learn how to grasp stroke charge, method, construct a thundering freestyle kick, enhance your begin and underwaters, and way more.

The 50 Freestyle Blueprint additionally consists of 20 dash units to get you began and a bonus information on learn how to grasp the 100 freestyle to finish your dash preparation.

👉 Learn more about The 50 Freestyle Blueprint today.