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Buying guide

Best Doorway Pull Up Bar: Four Bars Compared on the Numbers That Decide Whether They Fit

By the IntoInversion teamUpdated

We earn from qualifying purchases made through our links.

A bearded man pulling himself up on a red pull-up bar in a dim gym, the same movement a doorway pull up bar brings home
ProsourceFit Multi-Grip Pull-Up Bar

Best doorway pull up bar for most doors

ProsourceFit Multi-Grip Pull-Up Bar

Measure the doorway and check the frame against the manufacturer’s installation requirements before choosing a bar. These recommendations do not establish compatibility with gravity boots. Of the four, this is the only bar whose maker publishes the specs on its own site, and it has the widest door range. Pick it unless your frame is unusually deep, or you want the bar with the highest listed weight.

  • Maker publishes 300 lb and a 24 to 36 inch door range
  • Fits frames up to 6 inches thick
  • Lifetime warranty on manufacturing defects
Weight limit
300 lb
Warranty
Lifetime
Price range
Budget

Maker sourceSpecs from the maker's own product page

Ally Peaks Doorway Pull-Up Bar (silver2 variant)

Best for deep frames and heavier users

Ally Peaks Doorway Pull-Up Bar (silver2 variant)

Choose it if your wall is deeper than 6 inches, or you want the highest listed weight figure and the most complete door-fit numbers. Skip it if your opening is wider than 32 inches, or you want the specs from a maker rather than a seller listing.

Check size & availability: Ally Peaks Doorway Pull-Up Bar (silver2 variant) on Amazon (opens in a new tab)

We compared the published specs of the doorway bars with the longest buyer records, from the maker’s site where one exists and from the seller’s listing where it doesn’t, and we say which is which. We did not test the bars ourselves. We may earn a commission if you buy through our links, which does not change the order of the picks.

The Best Doorway Pull Up Bars Compared

Four bars made the list. Each one hangs on the door frame by leverage, with no drilling, and each one comes off the frame for floor exercises.

Four doorway pull up bars, from the published specs
SpecEditor's choiceProsourceFit doorway pull-up bar: a black steel frame with a straight top bar and angled grip handlesProsourceFit Multi-Grip Pull-Up BarBudget, price tier 1 of 3Maker sourceAlly Peaks Doorway Pull-Up Bar (silver2 variant)Ally Peaks Doorway Pull-Up Bar (silver2 variant)Budget, price tier 1 of 3Listing onlyPerfect Fitness Multi-Gym Pro Doorway BarPerfect Fitness Multi-Gym Pro Doorway BarBudget, price tier 1 of 3Listing onlyIron Gym doorway pull-up bar for dead hangs, a black steel frame with foam grips on the main bar and the side handlesIron Gym Pull-Up BarBudget, price tier 1 of 3Listing only
Weight capacity300 lb440 lbHighest here300 lb300 lb
AdjustmentDoor frames 24 to 36 in wide and up to 6 in thickDoorways 24 to 32 in wide, 4.7 to 8.27 in deep, trim up to 3.75 in high and at least 0.45 in thickDoor frames up to 33 in wide and up to 6 in deepDoorway 24 to 32 in wide (the listing also cites frames up to 35.4 in)
Assembly and setupSlip-in doorway bar, no screws; 2 optional foam covers to protect the frameLeverage doorway bar, no screws, silicone pads plus a spare pair of removable padsLeverage doorway bar with a patented door frame guard, no screwsLeverage doorway bar, no screws; safety brackets and tools included
WarrantyLifetime limited (manufacturing defects, original U.S. purchaser)Highest hereNot stated; the listing offers a money-back guaranteeNot stated on the listing1 year limited
BuySee today's price: ProsourceFit Multi-Grip Pull-Up Bar on Amazon (opens in a new tab)See today's price: Ally Peaks Doorway Pull-Up Bar (silver2 variant) on Amazon (opens in a new tab)See today's price: Perfect Fitness Multi-Gym Pro Doorway Bar on Amazon (opens in a new tab)See today's price: Iron Gym Pull-Up Bar on Amazon (opens in a new tab)
ProsourceFit doorway pull-up bar: a black steel frame with a straight top bar and angled grip handlesEditor's choiceProsourceFit Multi-Grip Pull-Up BarMaker source
Weight capacity
300 lb
Adjustment
Door frames 24 to 36 in wide and up to 6 in thick
Assembly and setup
Slip-in doorway bar, no screws; 2 optional foam covers to protect the frame
Warranty
Lifetime limited (manufacturing defects, original U.S. purchaser)Highest here
See today's price: ProsourceFit Multi-Grip Pull-Up Bar on Amazon (opens in a new tab)
Ally Peaks Doorway Pull-Up Bar (silver2 variant)Ally Peaks Doorway Pull-Up Bar (silver2 variant)Listing only
Weight capacity
440 lbHighest here
Adjustment
Doorways 24 to 32 in wide, 4.7 to 8.27 in deep, trim up to 3.75 in high and at least 0.45 in thick
Assembly and setup
Leverage doorway bar, no screws, silicone pads plus a spare pair of removable pads
Warranty
Not stated; the listing offers a money-back guarantee
See today's price: Ally Peaks Doorway Pull-Up Bar (silver2 variant) on Amazon (opens in a new tab)
Perfect Fitness Multi-Gym Pro Doorway BarPerfect Fitness Multi-Gym Pro Doorway BarListing only
Weight capacity
300 lb
Adjustment
Door frames up to 33 in wide and up to 6 in deep
Assembly and setup
Leverage doorway bar with a patented door frame guard, no screws
Warranty
Not stated on the listing
See today's price: Perfect Fitness Multi-Gym Pro Doorway Bar on Amazon (opens in a new tab)
Iron Gym doorway pull-up bar for dead hangs, a black steel frame with foam grips on the main bar and the side handlesIron Gym Pull-Up BarListing only
Weight capacity
300 lb
Adjustment
Doorway 24 to 32 in wide (the listing also cites frames up to 35.4 in)
Assembly and setup
Leverage doorway bar, no screws; safety brackets and tools included
Warranty
1 year limited
See today's price: Iron Gym Pull-Up Bar on Amazon (opens in a new tab)

Maker source from the maker's own page or manual, not independently testedListing only retail listing, no maker spec sheetNot stated the maker publishes nothing

Sources: ProsourceFit Multi-Grip Pull-Up Bar · Ally Peaks Doorway Pull-Up Bar (silver2 variant) (listing, no maker spec sheet) · Perfect Fitness Multi-Gym Pro Doorway Bar (listing, no maker spec sheet) · Iron Gym Pull-Up Bar (listing, no maker spec sheet)

How We Chose

We started from the doorway bars with the longest buyer records and kept the ones that publish a weight figure and a door-fit range. We then ranked them on what can be checked: who publishes the numbers, how wide a range of doors they fit, and what the warranty says. A weight rating from the maker counts for more than one from a listing.

The Four Picks at a Glance

  • ProsourceFit Multi-Grip: best for most doors, with maker specs and a lifetime defects warranty.
  • Ally Peaks: best for deep frames, with the highest listed weight.
  • Perfect Fitness Multi-Gym Pro: best grip choice, for narrower frames.
  • Iron Gym: the simplest bar, for standard doorways.

Before You Buy: Will Your Door Take a Pull Up Bar?

Every bar on this page works the same way. Hooks rest on the trim on the far side of the door, and a pad presses against the wall on your side. When you hang, your weight levers the bar against both.

Measure Three Things

Measure the inside width of the opening, the depth of the wall from one face of the trim to the other, and the height of the trim above the wall. Then compare all three with the bar’s range. The Ally Peaks listing is the most complete example: doorways 24 to 32 inches wide, 4.7 to 8.27 inches deep, trim up to 3.75 inches high and at least 0.45 inches thick (Ally, 2026). Most other bars publish only the width.

Test the Frame

The rating on the box cannot vouch for your door frame. Hollow or loosely nailed trim is the weak point of any leverage bar. The Ally Peaks listing gives the simplest test: tug down on the grips before every use to make sure the bar is seated (Ally, 2026). Do it with your feet still on the floor, then hang with your knees bent and your toes close to the ground for the first few sessions. This is a basic check, not certification of the structure: follow the bar maker’s installation instructions, and ask an installer if you are unsure.

Handles Fail Too

Doorway bars have been recalled before. In 2011 the Consumer Product Safety Commission announced a recall of about 7,000 Perfect Pullup bars, a screwed-in model with plastic handles, after the company received about 2,200 reports of cracked handles and 38 injury complaints (CPSC, 2011). That model is not on this page. It shows where to look when you inspect any bar: the handles, the mounting and the frame.

Leverage, J Brackets or a Fixed Bar

All four picks are leverage bars: they hang on the frame and come off in seconds. That convenience has limits, and one of the four manuals spells out both the limits and the alternative.

Read the Depth Numbers in the Manual

ProsourceFit’s product page says its bar fits frames up to 6 inches thick (ProsourceFit). Its manual is more precise: door frames 24 to 36 inches wide, a wall depth of 4.75 to 6.25 inches, and molding up to 3.5 inches wide (ProsourceFit). The minimum depth matters as much as the maximum. A thin interior wall can let a leverage bar sit at the wrong angle even when the width is right, so check your wall against both ends of the range.

The Optional J Brackets

The same manual describes a more permanent option: two “J” brackets screwed into the frame with wall anchors, which the bar then sits in “for added security” (ProsourceFit). If you rent, that means holes in the trim. If you own, it is the simplest way to stop a leverage bar from shifting, and it is worth doing on any door you plan to use daily. Iron Gym’s listing also says its bar comes with safety brackets and assembly tools (Iron, 2026).

The Rules Every Manual Repeats

ProsourceFit’s use and safety instructions are short and worth following with any bar: avoid swinging or bouncing, do not hang by your feet or legs, and make sure the bar is securely installed before each use. It adds that it is the user’s responsibility to decide whether a doorway is safe (ProsourceFit).

When a Fixed Bar Makes More Sense

If your door frames are hollow, unusually thin or wider than 36 inches, a leverage bar is the wrong tool. A bar screwed into wall studs or a ceiling joist, or a free-standing power tower, avoids the trim altogether. We have not compared those here, because they are a different purchase and a different installation.

Grips: What Changes With Each

The four picks differ more in their handles than in their frames. Here is what the research says those handles change, and what they don’t.

Pull-Up or Chin-Up

In a lab study of 25 young adults, the chin-up, with palms facing you, activated the chest (pectoralis major) and biceps significantly more than the pull-up, while the pull-up worked the lower trapezius harder (Youdas, 2010). The latissimus dorsi, the big back muscle most people train these for, was highly active in both. So the grip changes the mix, not whether the exercise works.

Rotating and Unusual Handles

The same study tested Perfect Pullup rotating handles and found no difference in muscle activation from a conventional pull-up or chin-up (Youdas, 2010). A second lab study, in 15 resistance-trained adults, compared traditional, suspension-strap and towel pull-ups: back, biceps and rear shoulder activity did not differ significantly, and only the middle trapezius was lower with towels (Snarr, 2017). Both are small studies of muscle activity, not of strength gained over months. Read together, they suggest you don’t need special handles to get a full workout.

Matching the Grips to the Bars

If you want a neutral grip, with palms facing each other, the Perfect Fitness Multi-Gym Pro lists a hammer grip among its three (Perfect, 2026), and ProsourceFit’s 12 foam grips include neutral handles. Iron Gym lists narrow, wide and neutral positions. Ally Peaks describes its bar as multi-grip without listing the positions. For dead hangs, a neutral grip is one some people find easier on the shoulders; try both and keep the one that feels better.

If You Can’t Do a Pull-Up Yet

Many doorway bars are bought by people who can’t yet do one pull-up. That is a reason to buy one, not to wait.

Let Your Legs Help

ProsourceFit’s manual tells beginners to stand on a stool or chair so their legs assist the movement, and to warm up for 15 minutes with light cardio and dynamic stretches first. It suggests moving on to endurance work once you can do 12 standard pull-ups (ProsourceFit). That is the maker’s advice rather than a tested program, but it is a sensible way to start without straining your shoulders.

Start With Hangs

A bar is also a grip trainer. In a randomized trial of 35 experienced climbers, ten weeks of hangboard training increased maximal finger strength more than climbing alone (Hermans, 2022). That was on climbing holds and in people who already climb, so it tells you hanging trains grip, not that it will give a beginner a pull-up by a set date.

Grip Strength Is a Health Marker, Not a Promise

In a study of 139,691 adults in 17 countries, each 5 kg of lower grip strength was associated with a 16% higher risk of death from any cause over about four years (Leong, 2015). The authors present grip strength as a cheap way to gauge risk and say it remains to be tested whether improving it reduces mortality. So a doorway bar is a good grip trainer, and nobody has shown that hanging from one makes you live longer.

Best Doorway Pull Up Bar Overall: ProsourceFit Multi-Grip

ProsourceFit doorway pull-up bar: a black steel frame with a straight top bar and angled grip handles

300 lb, wider doors, lifetime warrantyMaker source

by ProsourceFit

Best for most doorways, including wider ones up to 36 inches, and buyers who want the specs and a warranty from the maker.

Skip it if your wall is deeper than 6 inches, or you live outside the U.S. and are counting on the warranty.

The only doorway bar here whose maker publishes the specs itself: 300 lb, doors 24 to 36 in wide and up to 6 in thick. It also carries a lifetime warranty on manufacturing defects.

Weight limit
300 lb
Warranty
Lifetime
Price range
Budget

What we like

  • Rated to 300 lb on the maker's own product page
  • Fits wider doors, 24 to 36 in, and frames up to 6 in thick
  • Lifetime warranty against manufacturing defects
  • 12 foam grips, including neutral handles for a hang

Keep in mind

  • Warranty covers only U.S. residents and only replaces the bar
  • Heavier to store, at 8.7 lb
  • Rests on the door frame, so a weak frame is your real limit
Full specs
Price range
Budget
Weight capacity
300 lb
Door and frame fit
Door frames 24 to 36 in wide and up to 6 in thick
Mounting
Slip-in doorway bar, no screws; 2 optional foam covers to protect the frame
Use
Hang, pull-ups and chin-ups with 12 foam grips; push-ups, sit-ups and dips on the floor
Warranty
Lifetime limited (manufacturing defects, original U.S. purchaser)

Maker sourceFrom the maker's product page. Not stated means the maker publishes nothing.

We may earn a commission. It never changes which table we pick, or the order they appear in.

Why It Wins

ProsourceFit’s own product page rates the Multi-Grip bar to 300 lb and says it fits standard door frames 24 to 36 inches wide and up to 6 inches thick, and it tells owners to inspect the mounting regularly (ProsourceFit). That is the widest door range of the four, and the only one published by the maker rather than a seller listing.

The Warranty, Read Closely

Its lifetime warranty covers manufacturing defects only, for the original purchaser, and only for U.S. residents, and the remedy is a replacement (ProsourceFit). That is still the strongest warranty on this page. Two of the other listings state no warranty at all.

Who Should Skip It

If your wall is deeper than 6 inches, the bar may not seat properly. The Ally Peaks bar publishes a deeper range.

Best for Deep Frames: Ally Peaks Pull Up Bar

Ally Peaks Doorway Pull-Up Bar (silver2 variant)

Listed to 440 lb, full door-fit numbersListing only

by Ally Peaks

Best for deep walls up to 8.27 inches, thick trim, and heavier users who want the highest listed figure.

Skip it if your opening is wider than 32 inches, or you want a maker's spec sheet behind the numbers.

The highest listed capacity of the bars we compared, 440 lb, and the most complete door-fit numbers, including depth and trim limits you can measure before you buy. There is no manufacturer site behind it, so every figure comes from the listing.

Weight limit
440 lb
Price range
Budget

What we like

  • Listed at 440 lb, the highest here
  • Publishes width, depth and trim limits for the door frame
  • Silicone pads, with a spare removable pair
  • No screws or drilling

Keep in mind

  • No manufacturer site, only the Amazon listing
  • The listing gives two different money-back periods
  • Rests on the door frame, so a weak frame is your real limit
Full specs
Price range
Budget
Weight capacity
440 lb
Door and frame fit
Doorways 24 to 32 in wide, 4.7 to 8.27 in deep, trim up to 3.75 in high and at least 0.45 in thick
Mounting
Leverage doorway bar, no screws, silicone pads plus a spare pair of removable pads
Use
Hang, pull-ups and chin-ups on the frame; push-ups, dips and hanging crunches
Warranty
Not stated; the listing offers a money-back guarantee

Listing onlyFrom the retail listing; no maker spec sheet

We may earn a commission. It never changes which table we pick, or the order they appear in.

What the Listing Says

The Ally Peaks listing says the bar holds up to 440 pounds and is made of 1.7 mm steel, with silicone pads where it touches the frame and a spare pair of removable pads (Ally, 2026). It fits doorways 24 to 32 inches wide and 4.7 to 8.27 inches deep.

What You Give Up

We found no manufacturer site for Ally Peaks, so every number comes from the seller’s listing. The listing also gives two different money-back periods in the same text, so we don’t repeat either. And 440 lb is a figure for the bar: your trim still sets the real limit.

Best Grip Choice: Perfect Fitness Multi-Gym Pro

Perfect Fitness Multi-Gym Pro Doorway Bar

Three grips and a frame guardListing only

by Perfect Fitness

Best for standard doorways up to 33 inches wide, and people who want a neutral hammer grip as well as wide and close grips.

Skip it if your opening is wider than 33 inches, or you want a stated warranty.

Curved handles that give three grips, including a neutral hammer grip with the palms facing each other, plus a door frame guard. Every figure comes from the listing for model 31208.

Weight limit
300 lb
Price range
Budget

What we like

  • Listed at 300 lb
  • Curved handles with wide, close and hammer grips
  • Patented door frame guard against marks
  • Turns over for push-ups, sit-ups and dips

Keep in mind

  • Fits frames only up to 33 in wide
  • No manufacturer spec sheet or warranty on the listing
  • Rests on the door frame, so a weak frame is your real limit
Full specs
Price range
Budget
Weight capacity
300 lb
Door and frame fit
Door frames up to 33 in wide and up to 6 in deep
Mounting
Leverage doorway bar with a patented door frame guard, no screws
Use
Wide, close and hammer grip pull-ups on the frame; turned over on the floor for push-ups, sit-ups and dips
Warranty
Not stated on the listing

Listing onlyFrom the retail listing; no maker spec sheet

We may earn a commission. It never changes which table we pick, or the order they appear in.

What the Listing Says

The listing for the Multi-Gym Pro, model 31208, gives a 300 lb weight capacity, curved handles with wide, close and hammer grips, a patented door frame guard, and a fit for frames up to 33 inches wide and 6 inches deep. It weighs 6.2 lb (Perfect, 2026).

What You Give Up

The door range is the narrowest of the four, and the listing states no warranty. Perfect Fitness is also the firm that recalled the older Perfect Pullup handles in 2011; the Multi-Gym is a different product, and the recall is a reason to inspect its handles, as you should with any bar.

Simplest Doorway Bar: Iron Gym Total Upper Body

Iron Gym doorway pull-up bar for dead hangs, a black steel frame with foam grips on the main bar and the side handles

Listed to 300 lb, no screwsListing only

by IRON GYM

Best for standard doorways and people who want the most widely bought, simplest bar.

Skip it if your door opening is wider than 32 inches or your trim is weak or hollow.

The doorway bar with the longest buyer record we found, listed at 300 lb and fitted without screws. There is no manufacturer site behind it, so every figure comes from the listing.

Weight limit
300 lb
Warranty
1 year
Price range
Budget

What we like

  • Listed at 300 lb
  • Hangs on the door frame by leverage, with no screws or drilling
  • Three grip positions: narrow, wide and neutral
  • Comes off the frame in seconds for floor exercises

Keep in mind

  • No manufacturer spec sheet, only the Amazon listing
  • The listing gives two door widths: 24 to 32 in and up to 35.4 in
  • Only a 1 year limited warranty is stated
  • Rests on the door frame, so a weak frame is your real limit
Full specs
Price range
Budget
Weight capacity
300 lb
Door and frame fit
Doorway 24 to 32 in wide (the listing also cites frames up to 35.4 in)
Mounting
Leverage doorway bar, no screws; safety brackets and tools included
Use
Hang, pull-ups and chin-ups on the frame; push-ups, sit-ups and dips on the floor
Warranty
1 year limited

Listing onlyFrom the retail listing; no maker spec sheet

We may earn a commission. It never changes which table we pick, or the order they appear in.

What the Listing Says

The Iron Gym listing says the bar supports up to 300 pounds and holds by leverage against the door frame, with no screws (Iron, 2026). There is no manufacturer site behind it, so every figure comes from the listing.

What You Give Up

The same listing gives two door figures: a doorway 24 to 32 inches wide, and frames up to 35.4 inches. Measure your opening against the smaller one.

Using a Doorway Bar for Dead Hangs and Back Stretching

Many people buy a doorway pull up bar not for pull-ups but to hang from it, as a stretch for the spine and a test of grip.

What a Hang Does to the Spine

A spine clinic in Turkey X-rays scoliosis patients while they hang freely from a pull-up bar, knees bent so their feet leave the floor, because the hang applies a standardized traction from body weight (Ovali, 2023). The authors write that a dead hang exposes the spine to distraction forces of roughly half of body weight. Our page on dead hang benefits goes through what that does and doesn’t prove.

Doorway Bars and Gravity Boots

Gravity boots hang you upside down from a bar, which loads a doorway bar very differently. Teeter rates its own doorway Chin-Up Rack for boots at 250 lb (Teeter), below the figures on this page, so don’t assume a pull-up bar is approved for boots. Our best gravity boots page covers what to hang them from.

Health Cautions

A hang keeps your head above your heart, unlike inversion, which raised both systolic and diastolic blood pressure significantly in a study of 60 young women (Haskvitz, 1986). Even so, a hard hold makes people strain and hold their breath. Breathe steadily, and if you have high blood pressure or a shoulder injury, ask your doctor first. For other ways to stretch the spine at home, see how to decompress your spine and our inversion table alternatives.

The Verdict

The best doorway pull up bar is the one that fits your frame, and the ProsourceFit Multi-Grip fits the widest range of frames with numbers its maker stands behind. Choose Ally Peaks for a deep wall or the highest listed weight, Perfect Fitness for its grips on a narrower door, and Iron Gym for the simplest bar on a standard doorway.

Whichever you buy, measure first, tug-test before every session, and inspect the handles and mounting regularly.

Your questions, answered

Frequently Asked Questions

What is the best pull-up bar for a doorway?

For most doors we would pick the ProsourceFit Multi-Grip bar, because its maker publishes the rating, 300 lb, and a fit range of 24 to 36 inches wide and up to 6 inches thick, and backs it with a lifetime defects warranty. If your frame is deep or you are heavier, the Ally Peaks listing gives the most detailed fit numbers and a 440 lb figure.

Are doorway pullup bars good?

Yes, for pull-ups, chin-ups and dead hangs at home, as long as your door frame is solid. A leverage bar needs no drilling and lifts off in seconds, which is why it is the cheapest way to hang at home. The limit is rarely the bar itself: it is the trim and frame it rests on, so test those before your first rep.

Is my doorway safe for a pull-up bar?

Follow the bar maker's installation instructions first: they set the frame, trim and opening the bar is meant for. Generally the frame should be solid, the trim firmly attached, and the opening and wall depth inside the published range, so measure all three. A home tug test does not certify the structure; any creak, flex or gap at the trim means another door, or an installer.

What is the safest pull-up bar for home use?

The safest one is the bar whose published fit range matches your door, used on a sound frame and checked before every session. A screwed-in or wall-mounted bar is the sturdier option if you can drill. Among no-drill bars, choose a maker that publishes its numbers, and inspect the handles and mounting regularly, which is where doorway bars have failed before.

14 sources used for this guide

Each linked to the original. Citations in the text jump here.

View sources
  1. ProsourceFit. Multi-Grip Pull-Up Bar. prosourcefit.com, product page.

  2. ProsourceFit. Lifetime Warranty. prosourcefit.com, warranty terms.

  3. Ally Peaks. Ally Peaks Pull Up Bar, Thickened Steel Pipe (ASIN B08MY13HYC). Amazon.com product listing, seller description, retrieved October 10, 2026.

  4. Perfect Fitness. Perfect Fitness Multi-Gym Doorway Pull Up Bar and Portable Gym System, Pro (ASIN B01KN17NTQ, model 31208). Amazon.com product listing, seller description, retrieved October 10, 2026.

  5. Iron Gym. Iron Gym Pull Up Bars, Total Upper Body Workout Bar for Doorway (ASIN B001EJMS6K). Amazon.com product listing, seller description, retrieved October 2, 2026.

  6. CPSC. Perfect Pullup Recalled by Perfect Fitness Due to Fall Injury Hazard. U.S. Consumer Product Safety Commission, cpsc.gov, release 11-136, February 17, 2011.

  7. Ovali SA, Us AK. Comparison of traction, side-bending and dead-hang radiographs in preoperative evaluation and postoperative correction prediction in adolescent idiopathic scoliosis: A retrospective analysis of a novel flexibility radiograph. Medicine (Baltimore) 2023;102(50):e36461.

  8. Teeter (Stl International, Inc.). Gravity Boots & Doorway Inversion Systems (ficha de produto). teeter.com/product/gravity-boots/.

  9. Haskvitz EM, Hanten WP. Blood pressure response to inversion traction. Physical Therapy 1986;66(9):1361-1364.

  10. ProsourceFit. ProsourceFit Multi-Grip Pull-Up Bar: Assembly Instructions and Use & Safety Instructions. Owner's manual (copy hosted by ManualsLib).

  11. Youdas JW, Amundson CL, Cicero KS, Hahn JJ, Harezlak DT, Hollman JH. Surface electromyographic activation patterns and elbow joint motion during a pull-up, chin-up, or perfect-pullup rotational exercise. Journal of Strength and Conditioning Research 2010;24(12):3404-3414.

  12. Snarr RL, Hallmark AV, Casey JC, Esco MR. Electromyographical Comparison of a Traditional, Suspension Device, and Towel Pull-Up. Journal of Human Kinetics 2017;58:5-13.

  13. Hermans E, Saeterbakken AH, Vereide V, Nord ISO, Stien N, Andersen V. The Effects of 10 Weeks Hangboard Training on Climbing Specific Maximal Strength, Explosive Strength, and Finger Endurance. Frontiers in Sports and Active Living 2022;4:888158.

  14. Leong DP, Teo KK, Rangarajan S, et al. Prognostic value of grip strength: findings from the Prospective Urban Rural Epidemiology (PURE) study. The Lancet 2015;386(9990):266-273.

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