Effectively-designed gymnasium machines improve the effectiveness of your energy and hypertrophy coaching. They’ll reduce instability, permitting you to focus on and overload particular muscle tissue. They’ll apply variable resistance and resistance to patterns of movement that free weights merely can not. Good machines also can improve security when working with heavy masses or coaching to failure.

The issue is that not all machines within the gymnasium are good, helpful, or worthwhile. To preface, this evaluate isn’t the biased opinion of a fragile physio or some two-bit coach who labels random machines as “injurious” or “non-functional.”
That is an goal, biomechanics-based, physiologically-informed dialogue from a energy coach and bodily therapist who makes use of sure machines simply as usually as free weights. With that stated, not all machines are created equal. Listed here are 5 machines to keep away from and 5 machine issues to keep away from.
The 5 Worst Train Machines
The 5 Worst Machine Issues
The 5 Worst Train Machines
Some machines ought to be averted as a result of they “take” extra stress and energy than they “give” outcomes. When you’re targeted on coaching effectively and successfully, double-check your coaching program to see if any of this avoidable gear is in your plan.
Squat Machines That Backside-Out Earlier than You Do
Many lifters could battle with reaching full depth in a free weight squat. This will likely happen for various causes — poor coordination, restricted ankle flexibility, or a insecurity of their skill to face up after hitting depth.
Hack squats, leg presses, and different lower-body machines that improve a lifter’s skill to attain full vary of movement within the “squat” motion sample are value their weight in gold (or, extra particularly, iron).
For lifters with stiff ankles, putting your toes greater or additional ahead on the platform decreases the quantity of ankle dorsiflexion (elevating your toes in direction of your shin) required to hit depth. The upper-body help and steerage afforded by the machine assists lifters poor in trunk management.
Constructed-in security options could empower even probably the most apprehensive lifters to attain important depth. However these built-in security “stops” can backfire in the event that they finish the squat motion too early.
Why Keep away from Them
Perhaps you’ve skilled this state of affairs: You hop on a shiny new hack squat or leg press. Every thing feels nice till halfway via the rep…clunk… you’ve hit the machine’s security cease earlier than reaching the coveted “ass-to-grass” place of full hip and knee flexion.
The machine could have been working easily in any other case, however its design could also be shorting greater than your depth. It’s possible robbing you of potential positive factors.
Full vary of movement squatting has been related to superior energy and energy outcomes in comparison with partial depth squatting. (1) Though different analysis confirmed no distinction in energy enchancment between these squatting to full depth and people coaching with partials, it did report considerably better thigh hypertrophy within the full depth group. (2)
Altogether, plainly most lifters would profit from squatting deep. Squat machines ought to facilitate, not restrict, full vary of movement coaching. If the squat machine in your gymnasium hits backside earlier than you do, it’s in all probability not value your time.
The “Excessive 5” Pec-Deck
Fairly some time in the past, many pec-deck or chest flye machines appeared to share a typical ill-conceived design — the “excessive 5” arm place. The machine requires customers to take a seat and attain their arms barely behind their physique at shoulder-height, after which externally rotate their shoulders to position their forearms in touch with vertical pads.
To carry out the train, the consumer pulls the pads towards one another in entrance of their chest. These machines prepare the pectoralis main, anterior deltoid, subscapularis, and few helper muscle tissue. (3) They’ll nonetheless be present in industrial and residential gyms.
Why Keep away from Them
To be clear, there’s nothing inherently “mistaken” with this machine. It undeniably hits the pecs. (3) The truth is, the overall contribution of pectoralis main is probably going underestimated as a result of the muscle is put underneath substantial passive rigidity throughout full shoulder exterior rotation.
The difficulty with the “excessive 5” pec-deck shouldn’t be it’s lack of effectiveness, however that it’s unlikely to be universally tolerated by lifters who’ve present shoulder points. For instance, when a workforce of physicians examined 20 weightlifters with painful shoulders, each single weightlifter reported copy of shoulder ache within the “excessive 5” place. (4)
Curiously, half of those weightlifters improved and finally averted surgical procedure with rehab and avoidance of the “excessive 5” place. Heavy energy coaching within the “excessive 5” shoulder place is regarded as related to anterior instability. (5)(6) It undoubtedly stresses the entrance of the shoulder joint, together with the rotator cuff.
Altogether, if in case you have recognized shoulder issues, together with however not restricted to stiffness, rotator cuff pathology, biceps tendon points, or a labrum damage (e.g. SLAP tear), avoid the “excessive 5” pec-deck. However don’t despair. There are extra forgiving choices.
Improved pec-deck designs have a number of deal with choices. These machines enable the consumer to pick out a cushty place for direct chest training. As a bonus, the improved machines usually enable the lifter to spin round and prepare rear deltoids on the similar station, enabling an environment friendly superset.
Crunch Machines
Belly machines will get you off the gymnasium ground, however that’s just about the one benefit of most of them. Plate-loaded and stack-loaded crunch machines are typically designed for use both seated or mendacity down.
Whereas their designs have a tendency to cut back a multi-joint spinal motion sample to a single pivot level, this isn’t their major drawback. Their vary of movement is suboptimal for constructing a stronger, higher wanting set of abs.
Why Keep away from Them
While you use a crunch machine, whether or not it’s a seated or supine (mendacity down) mannequin, you solely prepare via a small portion of your accessible trunk flexion vary of movement. By the point you meet the resistance of the machine, a lot of your spinal joints are already flexed and the abdominals are solely skilled of their shortened size.
For the aim of building muscle, mounting proof suggests the superiority of coaching at lengthy muscle lengths fairly than brief. (7)(8) So if you happen to’re a wholesome lifter who needs to construct a extra pronounced six-pack, a greater choice is to prepare via a full vary of spinal flexion.
Begin your crunch with an prolonged (arched) again. To perform this, you may carry out crunches on high of a Swiss ball or lock right into a glute-ham developer (GHD) machine for managed, full range of motion sit-ups.
Standing Calf Elevate Machines
Standing calf increase machines remove the necessity to maintain heavy weights when performing calf raises. Additionally they present a steady surroundings to assist the lifter deal with constructing large, sturdy gastrocnemius muscle tissue — the superficial calf muscle skilled throughout any straight-knee calf increase train. (9)
These machines sometimes load the calves via pads that relaxation atop the higher traps. Subsequently, the standing calf increase is an axially-loaded train, which implies the burden is supported via the trunk and backbone like squats and deadlifts.
Why Keep away from Them
Calf coaching is accent work, which is often programmed towards the tip of the exercise. By that point, most lifters have already carried out at the least one heavy axially-loaded decrease physique train. In the event that they’ve skilled with excessive effort and depth, their core is probably going exhausted. However until their costume code all the time requires pants or knee-high socks, calf coaching in all probability shouldn’t be skipped.
By avoiding standing machines in favor of machines that apply extra direct loading to the goal muscle tissue, you may scale back the probability that trunk fatigue interferes with constructing the getaway sticks you’ve all the time needed.
Whereas standing calf increase machines have been round for many years, Golden Period bodybuilders had options. They used donkey calf machines, which required the lifter to bend ahead to load the calves from atop the pelvis as an alternative of the backbone.
There’s photographic proof of Arnold performing this train with out the machine, as an alternative recruiting a coaching companion or the occasional stunning lady (or two) to take a seat atop his hips whereas he carried out calf raises.
Can’t discover an old-school donkey calf machine? Asking others to climb onto your hips too risqué in your globo gymnasium? There are many options to standing calf increase machines.
Objective-built 45- or 60-degree calf increase machines load the calves via the hips. They seem like mini hack squats. Rotary calf machines enable coaching to be carried out seated with legs straight out in entrance of the physique. If none of those choices can be found, a fundamental leg press often works advantageous for calf raises whereas sparing you the axial-loading.
Combo Machines That Botch Each Actions
When restricted ground house or finances is a priority, gymnasium homeowners could also be tempted by multi-function machines. Machines like purposeful trainers and cable columns function the gymnasium’s “jack-of-all-trades, grasp of none.” These machines are mainstays, and there are often no issues with them. However some multifunction machines are fairly lackluster.
The plate-loaded leg extension/leg curl combo is a multi-function machine that’s universally garbage, no matter make or producer. These machines mix a seated leg extension with a susceptible hamstring curl. In principle, these machines are an exquisite, space-efficient station to coach two essential muscle teams. In actuality, you’ll understand after your first set why they’re on this record.
Why Keep away from Them
The plate-loaded leg extension/leg curl combo solely has two jobs — prepare the quads and prepare the hamstrings — and it does neither significantly nicely. For quad coaching, the resistance peaks close to the highest place when knees are prolonged.
Nevertheless, knee extension torque is highest close to the center of the vary of movement, not in full extension. (10) Subsequently, the resistance provided by the machine doesn’t match the energy profile of the joint being skilled. Many different machines may additionally fall in need of offering very best resistance via a full vary of movement, which is mentioned in additional element within the subsequent part.
The susceptible hamstring curl half of this machine, particularly, is nugatory at end-range knee flexion (the contracted place). Previous a sure angle of knee flexion, the resistance cuts out as a result of the plates are pulled above the machine’s axis of rotation as you full the curl.
If it is advisable use considered one of these machines as a result of, say, you have already got one and aren’t shelling out for 2 separate machines, you may be capable of work round this drawback by creatively rigging resistance bands.

In the end, there are higher machines accessible in your quad and hamstring coaching — one devoted to quads and a separate one for hamstrings.
The 5 Worst Machine Issues
Some machines aren’t inherently “dangerous,” they simply endure from issues that may probably be addressed with enough upkeep, correct setup, or an adjustment to total program design. Right here’s what to be careful for.
Machines Stuffed with Friction
Have you ever ever felt a mid-rep grinding or jerking sensation when lifting on a machine? Or, possibly you’ve felt that it’s a must to push or pull via plenty of “slop” or play within the cables and pulleys of a machine earlier than the burden stack begins to maneuver? If that’s the case, you’ve bought a friction problem.
Widespread sources of friction in gymnasium machines could be bent, rusted, or poorly lubricated information rods; worn or cracked cable sheathing; or worn bearings. Some machines, significantly these with a number of pulleys and lengthy belts or cables have plenty of friction when factory-new. Through the use of high-friction machines, you might be sacrificing greater than a clean lifting expertise.
Why Keep away from Them
The identical friction that makes the repetition really feel “grindy” through the constructive (concentric or lifting) portion of the repetition additionally robs you of resistance through the destructive (eccentric or decreasing) portion.
What’s the hurt of shedding just a little resistance through the eccentric part? It may very well be limiting the general effectiveness of the train. Our muscle tissue are physiologically stronger throughout eccentric contraction than concentric contraction. In any given motion, you may decrease extra weight than you may raise. Subsequently, the concentric part of a typical train will all the time be the limiting issue.
When utilizing high-friction machines, your muscle tissue get short-changed twice-over. First, you’ll want to make use of much less weight than you’d in any other case to will let you overcome the burden and the friction through the concentric a part of the raise.
The kicker is that your muscle tissue don’t even get to expertise full resistance through the eccentric. The efficient resistance through the eccentric is the burden you’ve chosen minus the resistance misplaced to friction.
Keep away from the machine “put on” sources of friction through the use of well-maintained machines. To keep away from machines with plenty of friction intrinsic of their design, search for plate-loaded machines with prime quality bearings.
Machines with Inadequate Assist
Effectively-designed machines ought to allow you to to lock-in good kind and will let you successfully load the skilled motion sample. Good machines are extremely efficient. For instance, analysis confirmed that 10 weeks of coaching on an remoted lumbar extension machine was superior to Romanian deadlift coaching for enhancing lumbar extension energy. (11)
Nevertheless, in contrast to the extremely fascinating MedX lumbar extension machine, many different lumbar extension machines lack a seat belt to safe hips through the train. These machines could be safely presumed to be solely marginally efficient.
Talking of seat belts, if you happen to’ve ever tried a seated dip machine with no belt or pads that lock you within the seat, you’ve skilled this phenomenon: try and push down greater than a sure proportion of your body weight and also you rise out of the seat. A lack of help represents a design flaw that by some means made it to market.
Receiving honorable point out on this class are cable hip extension machines and rotary hip extension machines (e.g. 4-way hip). These machines are used standing on one leg whereas the other leg is prolonged in opposition to resistance from a cable or pad.
Though these machines sometimes provide handles to help with stability, most customers battle to stabilize their trunk and pelvis. Sturdy contraction of the working-side glute sometimes causes anterior tilt of the pelvis together with rotation. These machines finally restrict the quantity of resistance that can be utilized to coach hip extension, and your gluteus maximus is left with minimal positive factors.
Why Keep away from Them
Machines missing sufficient help could be much less efficient as a result of they restrict the potential use of upper resistance masses. They can be downright irritating. Take into consideration the triceps extension machine with handles above a pad that resembles a preacher curl bench. It’s mainly a reverse arm curl machine.
I’ve witnessed lifters strive with all their may to lean into this type of seated triceps extension machine solely to push themselves away from the machine with heavy masses on the burden stack. A easy repair, resembling an adjustable seat again, may enormously improve the power to make use of heavy masses and improve the user-experience (and outcomes).
When you’re a powerful lifter who’s struggling to keep up physique place whereas utilizing a gymnasium machine, it’s not you, it’s the machine. Spare your self the frustration and discover a higher choice.
Machines That Don’t Match Your Physique
Encountering machines that don’t match your physique is frequent, even for a decidedly average-sized lifter. In case your anthropometry, or physique proportion, is farther from the inhabitants imply, anticipate to run into this problem much more usually.
Be careful for machines whose axis of motion doesn’t align with your main working joint. Single-joint machines like arm curl machines, triceps extensions, susceptible hamstring curls, and leg extension machines appear to be the frequent culprits.
Additionally, pay attention to machines which might be too tall or too brief in your stature. For instance, if a machine is meant for use with toes on the ground, your toes shouldn’t be dangling. Or possibly you’re long-limbed and a specific gymnasium machine doesn’t will let you press or row via your full vary of movement.
Why Keep away from Them
It ought to be apparent {that a} gymnasium machine with poor ergonomics will ship a less-than-stellar consumer expertise. Past that, questions come up relating to the effectiveness of workout routines carried out on misfit machines.
Are muscle tissue and joints being skilled via their meant ranges of movement? Are match points precluding using efficient resistance masses? Are misalignments between the machine’s geometry and your physique creating irregular joint stresses?
If a machine doesn’t really feel proper, it’s unlikely that will help you accomplish your coaching targets. While you encounter a machine that doesn’t match, regardless of using all accessible changes, it’s time to maneuver on.
Machines with a Poor Resistance Curve
A machine’s resistance curve describes the sample of variable resistance the consumer experiences all through the vary of movement of the train. Machines could be designed to use variable resistance to the lifter by way of using levers and irregularly formed cams.
The basic instance of variable resistance is the Nautilus shell-shaped cam. The cam was meant to use extra resistance through the a part of the train the place the lifter is stronger and fewer resistance the place the lifter is weaker.
Whereas no machine matches every particular person lifter’s energy curve, or capability to display energy all through the vary of movement, the resistance curve ought to correspond with the generalized energy curve of the motion sample. (12)(13)
In principle, machines engineered to accommodate the overall human energy curves ought to be superior to free weights, which exert a continuing resistance counting on gravity. It also needs to be famous there’s actually no consensus relating to the prevalence of variable resistance coaching or free weight coaching for growing energy. (12)(14)(15)
Why Keep away from Them
For the second, let’s restrict our scope to single-joint coaching for simplicity’s sake. When variable resistance, cam-based arm curl machines have been in comparison with round, cam-based arm curl machines, the variable resistance model was superior for energy positive factors and barely higher hypertrophy positive factors have been reported. (16)(17)
These outcomes make sense, as round cams typically don’t match the generalized energy curve of the motion being skilled. Usually, you must select the oblong-shaped cam machine over the circle-shaped cam machine for single-joint coaching. However what about different machine designs for different physique components? You’re going to should really feel them out.
You may encounter a machine that applies variable resistance in battle with the motion sample’s energy curve. For instance, a lever-based urgent machine with a low pivot level could apply heavier resistance on the backside place.
This design would battle with the urgent motion sample’s ascending energy curve (the place you’re sometimes stronger on the high). (13) One of these machine is prone to restrict the general weight used for the train and will finally scale back its effectiveness for constructing muscle and energy.
You don’t should be a biomechanist to qualitatively decide if a machine’s resistance curve is sweet or poor for your self. A superb resistance curve will simply… really feel proper. With heavy masses, you’ll really feel you can exert most effort into the machine all through the complete vary of movement with out shedding reference to the resistance, creating extreme momentum, or grinding right into a pronounced sticking level. Excessive-quality machines are “buttery” via the complete vary of movement.
If a machine feels extraordinarily troublesome throughout a one portion of the vary of movement and permits for fast acceleration elsewhere, it might have a poor resistance curve. If that is so, you’re higher off discovering a special machine or switching to free weights for a comparable train.
Machines Redundant to Efficient Free Weight Choices
Some free weight workout routines are merely rattling good and need to be in your program. The lure bar isn’t crushed by a shrug machine. If you wish to do seated shrugs, sit on a bench and use heavy dumbbells.
For rack pulls, it’s completely advantageous to get within the squat rack. The Smith machine may’ve turned the go-to for this train lately, however an excellent outdated barbell lifted from the security catches works simply advantageous, arguably with superior carryover to your standard deadlift due the specificity precept.
The purpose is, there’s no must re-invent the wheel. And gymnasium gear producers and gymnasium homeowners must obtain that message.
Why Keep away from Them
The choice to keep away from a machine in favor of an equally-effective free weight variation is an “train” in restraint. Simply because a machine is accessible doesn’t imply it must be used.
When you and others at your gymnasium train this restraint, the gymnasium’s administration will possible take discover. A machine that doesn’t get utilized in a public gymnasium doesn’t stick round. Hopefully, the dear gymnasium actual property occupied by the redundant machine may quickly be full of a brand new machine.
Hopefully it is going to be one thing distinctive and efficient, resembling an excellent plate-loaded pullover, standing lateral increase, or pendulum squat. Or possibly administration will swap out the redundant machine with one other squat rack or no matter in style piece you’re continuously ready for at your gymnasium.
References
- Pallarés, J. G., Cava, A. M., Courel-Ibáñez, et al. (2020). Full squat produces better neuromuscular and purposeful variations and decrease ache than partial squats after extended resistance coaching. European Journal of Sport Science, 20(1), 115-124.
- Bloomquist, Ok., Langberg, H., Karlsen, S., Madsgaard, S., Boesen, M., & Raastad, T. (2013). Impact of vary of movement in heavy load squatting on muscle and tendon variations. European Journal of Utilized Physiology, 113(8), 2133-2142.
- Kuechle, D. Ok., Newman, S. R., Itoi, E., et al. (1997). Shoulder muscle second arms throughout horizontal flexion and elevation. Journal of Shoulder and Elbow Surgical procedure, 6(5), 429-439.
- Gross, M. L., Brenner, S. L., Esformes, I., & Sonzogni, J. J. (1993). Anterior shoulder instability in weight lifters. The American Journal of Sports activities Medication, 21(4), 599-603.
- Escalante, G. (2017). Train modification methods to stop and prepare round shoulder ache. Power & Conditioning Journal, 39(3), 74-86.
- Kolber, M. J., Beekhuizen, Ok. S., Cheng, M. S. S., & Hellman, M. A. (2010). Shoulder accidents attributed to resistance coaching: a short evaluate. The Journal of Power & Conditioning Analysis, 24(6), 1696-1704.
- Maeo, S., Huang, M., Wu, Y., et al. (2021). Higher hamstrings muscle hypertrophy however comparable harm safety after coaching at lengthy versus brief muscle lengths. Medication and Science in Sports activities and Train, 53(4), 825.
- Sato, S., Yoshida, R., Kiyono, R., et al. (2021). Elbow joint angles in elbow flexor unilateral resistance train coaching decide its results on muscle energy and thickness of skilled and non-trained arms. Frontiers in Physiology, 12.
- Landin, D., Thompson, M., & Reid, M. (2015). Knee and ankle joint angles affect the plantarflexion torque of the gastrocnemius. Journal of Scientific Medication Analysis, 7(8), 602-606.
- Guenzkofer, F., Engstler, F., Bubb, H., & Bengler, Ok. (2011, July). Joint torque modeling of knee extension and flexion. In Worldwide Convention on Digital Human Modeling (pp. 79-88). Springer, Berlin, Heidelberg.
- Fisher, J., Bruce-Low, S., & Smith, D. (2013). A randomized trial to contemplate the impact of Romanian deadlift train on the event of lumbar extension energy. Bodily Remedy in Sport, 14(3), 139-145.
- Carpinelli, R. (2017). A essential evaluation of the nationwide energy and conditioning affiliation’s opinion that free weights are superior to machines for growing muscular energy and energy. Medicina Sportiva Practica, 18(2), 21-39.
- Wallace, B. J., Bergstrom, H. C., & Butterfield, T. A. (2018). Muscular bases and mechanisms of variable resistance coaching efficacy. Worldwide Journal of Sports activities Science & Teaching, 13(6), 1177-1188.
- Dos Santos, W. D. N., Gentil, P., de Araújo Ribeiro, A. L., et al. (2018). Results of Variable Resistance Coaching on Maximal Power: A Meta-analysis. The Journal of Power & Conditioning Analysis, 32(11), e52-e55. doi: 10.1519/JSC.0000000000002836.
- Andersen, V., Prieske, O., Stien, N., et al. (2022). Evaluating the results of variable and conventional resistance coaching on maximal energy and muscle energy in wholesome adults: a scientific evaluate and meta-analysis. Journal of Science and Medication in Sport.
- Urbanik, C., Staniszewski, M., Mastalerz, A., et al. (2013). Analysis of the effectiveness of coaching on a machine with a variable-cam. Acta of Bioengineering and Biomechanics, 15(4).
- Staniszewski, M., Mastalerz, A., & Urbanik, C. (2020). Impact of a energy or hypertrophy coaching protocol, every carried out utilizing two completely different modes of resistance, on biomechanical, biochemical and anthropometric parameters. Biology of Sport, 37(1), 85-91.
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