Here's what you need to know...
• Variety is good for both strength and hypertrophy and it helps prevent overuse injuries.
• Every body is unique, and the best form for a lifter is the one that best suits his unique anthropometry and injury history.
• Contrary to popular belief, there's no standardized perfect form, only what form is best suited for your body and goals.
First, every body is unique, and the best form for a lifter is the one that best suits his or her unique limb lengths, body segment proportions, tendon attachment points, muscularity, and injury history.
Second, the form that a lifter uses is heavily predicated on his or her overall goals. These goals might include hypertrophy, in which case it's possible to accentuate tension on a particular muscle; strength, in which case it's possible to perform a lift in a manner that maximizes leverages; or transference, in which case it's possible to execute an exercise in a manner that best transfers to another lift or sporting action.
And third, all lifters should purposely perform lifts in a variety of ways in order to build well-rounded and maximal strength.
Stubbornly sticking to a particular form or variation that isn't right for you, no matter how popular it is, will eventually lead to injury. It's akin to forcing a square peg through a round hole.
All my powerlifting and strongman friends look markedly different when they squat, deadlift, and bench. Hell, take a look at the various powerlifting world record holders, strongman champions, top Olympic weightlifters, and even the best bodybuilders on the planet – you'll see that their techniques with the big lifts vary markedly.
Top Athletes Vary in Exercise Form
They've all taken the time to figure out the style of each lift that caused the least pain and injury, maximized their leverages and performance, and/or allowed them to best reach their particular goals. What's hilarious is that many of these top strength and physique athletes "break the rules" according to various experts, making it difficult to find merit with any hard rules in lifting mechanics.
The top lifters have also taken the time to figure out their favorite exercise variations. The top bodybuilder might prefer rack pulls over full-range deadlifts because they're safer on his low back, but still might hammer his entire posterior chain.
The top powerlifter might perform low bar squats and sumo deadlifts in competition, but prefers high bar squats and conventional deadlifts in training until a month out before the meet since they better build his lifts.
The strongman might tell you that he gave up low bar squatting years ago to preserve his shoulder health, but that he still front squats every week. Lastly, the top Olympic lifter may prefer the Romanian deadlift and high-bar full squat as assistance lifts, whereas the top powerlifter might prefer the deficit deadlift and high box squat. You get the picture.
I realize most don't have access to specialty bars, so I only included traditional barbell variations. However, there are dozens of incredible variations that use the rackable cambered bar, safety squat bar, or Dead-Squat™ Bar, to name a few.
Useful Barbell Variations of Squats and Deadlifts
Though the difference might appear subtle, the high-bar squat exhibits less forward trunk lean and therefore places more stress on the quads. Conversely, the low-bar back squat increases trunk lean and places more stress on the hips.
Deep Back Squats: High Bar Versus Low Bar
Strong quads are critical for proper squat performance, as are strong hips. You should incorporate both types of squats into your training arsenal.
High-Bar Back Squat
Low-Bar Back Squat
With sufficient training experience, most lifters will find that they're stronger with squats when they use a low-bar placement and take a wide stance. However, there are lifters who discover that they're indeed stronger with high-bar squats.
High-Bar Versus Low-Bar Parallel Squats
Usually, high-bar squats are performed with a moderate stance as opposed to a very wide stance. Again, the high-bar squat emphasizes the quads, whereas the low-bar squat will emphasize the hips. Both variations are great for squat training.
High-Bar Moderate Width Parallel Squat
Low-Bar Wide Stance Parallel Squat
Most of the time, when you see someone performing front squats they're using a narrow stance. But there's no reason why you can't perform front squats with a wider stance. Again, both should be used in your training regimen.
Front Squats: Wide Versus Narrow Stance
Narrow Stance Front Squats
Wide Stance Front Squats
Most lifters are familiar with high box/low bar squats where they sit back and keep vertical tibias, thereby maximizing stress on the posterior chain. However, it's also a good idea to perform low box/high bar squats from time to time. This variation places considerable stress on the quads and is quite useful depending on the purpose.
Box Squats: Low Box/High Bar Versus High Box/Low Bar
High Box/Low Bar Squat
Low Box/High Bar Squat
Most lifters only employ one style of Zercher squats but it's a good idea to occasionally perform two different styles. To stress the hips, take a wider stance, keep the shins vertical and sit back more, descending to parallel. To stress the quads, use a moderate stance, keep the torso more upright, sit down, and descend below parallel.
ZercherSquats: Hip Emphasis Versus Quad Emphasis
Hip-Dominant Zercher Squat
Quad-Dominant Zercher Squat
You should perform both conventional and sumo deadlifts from time to time. They build each other, especially if you have a huge strength discrepancy between the two variations.
Deadlift: Conventional Versus Sumo
The same logic applies to block or rack pulls. You can and should use a conventional and sumo stance throughout your training year.
Block or Rack Pulls: Conventional Versus Sumo
Conventional Block Pull
Sumo Block Pull
When you pull sumo, there's a sweet spot for trunk angle and joint ROM that enables you to hoist the heaviest loads. That said, sometimes it's a good idea to use lighter loads and practice your sumo deadlifts using a quad-emphasis or a hip-emphasis. With the quad-dominant style, sink deeper and keep a more upright trunk. With the hip-dominant style, raise the hips and use a greater trunk lean.
Sumo Deadlifts: Quad Versus Hip Dominant
Quad-Dominant Sumo Deadlift
Hip Dominant Sumo Deadlift
When pulling from a deficit, you should employ a traditional grip width as well as a snatch grip width. The snatch grip deficit deadlift increases joint ROM and is a brutal yet useful variation.
Deficit Deadlifts: Clean Grip Versus Snatch Grip
Snatch Grip Deficit Deadlift
The hack lift is a nifty way to build quad strength in a deadlift. Just place the bar behind the back and try to mimic your typical deadlift form. This variation stresses the knees and should be used only occasionally. The lockout can be tricky, but most lifters can learn to perform the movement correctly with practice.