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9 At-Home Modifications for Your Favorite Gym Machines

The Most Effective Modifications to Target Specific Muscles

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Strong is the new skinny, people. In addition to reducing blood pressure, increasing the length of time you can hold your toddler at the grocery store and decreasing your risk of osteoporosis, strength training as you age also reduces your risk for death: In one study, people 65 and over were 46 percent less likely to die if they strength trained at least twice a week compared to those who did not. It's no wonder then that, in addition to 150 minutes per week of aerobic activity, the Centers for Disease Control and Prevention recommends two muscle-strengthening sessions per week.
 
For most novice exercisers, that means stepping up their workouts from simple walks and cardio sessions to include a trip to their gym’s exercise machines.
 
Back up though. Gym machines are great for targeting specific muscles and serving as a soft introduction to strength training for beginners. But the gym and those machines aren't the only way to work your muscles. You can get all the benefits of your favorite machines—plus extra muscle-building benefits and reduced injury risk—with little or no equipment. So whether you don’t have time to get to the gym, find the moving parts confusing or intimidating, or want to avoid crowds and lines, rest assured that you can get an even better workout without big pieces of equipment.
 
Nine machines stand out as some of the most common and popular in gyms across America: Each one can be replaced—and improved upon—with these exercise options that require little or no equipment.
 
The Machine: Leg Extension 
 
People love the leg burn they can get from sitting and pumping the knees forward, but the machine only works your quadriceps, or the muscle at the front of your thighs. Because you’re seated, your core doesn’t have to stabilize your body while you work your legs.
 
You can actually still work the quads while training your butt, hamstrings and core simultaneously with a bodyweight or weighted split squat, says Craig Ballantyne, founder of Turbulence Training.
 
“[The split squat] trains multiple muscle groups at once, while working the quadriceps harder than the leg extension machine,” he says. Plus, the move comes without some of the risks of the leg extension, which “puts extra stress on the ACL and patella tendon, and could cause overuse injury over time.”
 
The split squat is very similar to a lunge, of course, but it’s a little simpler. Focus on squeezing the muscles in your leg throughout so that you feel the contraction, even without adding additional weight.
 
The Equipment-Free Exercise: Split Squat

 


To do the split squat, stand with your feet together, about shoulder-width apart. Take a large lunge step forward with your right foot so that your feet are about three feet apart, with your feet still parallel.

Bend your knees to descend until your knees both form 90-degree angles. Your front shin should be perpendicular to the floor, with your knee directly above your ankle. From this position, press back to the start position. Start with five reps on this side, then switch sides and do five more. Start with two sets, working your way up to four.
 
To add resistance, simply add weight to your hands at your sides—whether it’s a pair of dumbbells or a few heavy cans to start. 
The Machine: Hip Adduction and Abduction 
 
If you’re using this machine, you probably want thinner, firmer thighs. But unlike most machines on this list—which may have their flaws—this one just doesn’t do what you are hoping it will.
 
“You’re in hip flexion [with your hips bent up so you have a lap], and that’s not how hip abduction and adduction work,” says Shawn Arent, director of Kinesiology and Applied Physiology graduate program at Rutgers University. And even if it did work, you wouldn’t necessarily get the results you want. “The adductor is one of the largest muscles in the upper leg. [Lifting it with big loads] isn’t going to reduce the size of your thigh.”
 
For plain old hip abduction (lifting the leg away from the body) and adduction (bringing the leg back toward the midline), side-lying leg lifts—the kind made famous in Jane Fonda workouts—is more directly effective. But Arent says you can take adduction and abduction to the next level with lunges and a simple resistance band lateral walk.
 
“Research has shown that the adductor in particular is really worked with the lunge,” he says. It might seem counterintuitive, he says, but sometimes, to really target what you want—your thighs—it’s better to do exercises that target a lot of things at once.
 
The Equipment-Free Exercise: Bodyweight Lunge



Stand with your feet shoulder-width apart. Take a large lunge step forward with your right leg, descending as you step until your knees both form 90-degree angles. Press through your right foot to stand back up. Once you finish all your reps on the right side, do an equal number with your left foot forward. Try for five reps on each leg to start, working from two sets up to four sets.

Minimal-Equipment Move: Resistance Band Lateral Walk


 
Wrap the resistance band around your legs just above the knees—the higher on your thighs you go, the easier the move will be. Bend your knees slightly and step out to your right. Bring your legs back together and keep walking to the right. Do 10 steps to the right, then 10 steps back to the left.

The Machine: Sit-Up Machine 
 
The motivation for hopping on this machine is no secret: You want that trim, muscular tummy, and adding weight to a traditional sit-up should make it more effective, right?
 
Not exactly. Taking your crunch or sit-up to the next level doesn’t have to involve pulling on your neck or pulling your hips and lower back into a rounded, flexed position over and over. Mike Wunsch, a trainer and program design specialist at Results Fitness in Santa Clarita, California, suggests a seated Russian twist to work not just the rectus abdominis—the six-pack muscle—but also get rotational core strength. “You’re holding that flexed, crunch position,” he says, to give the rectus abdominis constant work throughout the move.
 
The Equipment-Free Exercise: Seated Russian Twist





Sit on the floor with your heels on the ground. Your torso should be at a 45-degree angle from the ground, and should be in a straight line from your buttocks to your head. Place your arms in front of you as a guide. From this position, twist to the left, rotating your whole torso, not just your arms, until your hands point out to nine o’clock. To use your hands as a guide, your shoulders and chest should remain in the same position relative to your hands as you twist. Twist back to start, and then go to the right, twisting until your shoulders, chest and hands point toward three o’clock. That’s one repetition. Start with 10.
 
If this is too easy, try lifting one foot slightly off the floor. Once that’s too easy, do the move with both feet off the floor. 
The Machine: Lying Leg Curl 
 
The lying leg curl machine is a dying breed in the gym—it was once a great way to target the hamstrings, and was used by many powerlifters just before squatting.
 
The seated version, which is now seen in many gyms, is not as good, says Ballantyne, as they don’t offer significant tension on the hamstring. He recommends getting out of the chair and trying a hip extension move, instead. The single-leg hip extension requires no equipment, while the stability ball hip extension and leg curl (or SHELC), needs just a stability ball. Both train the hamstrings with the glutes, abdominals and low back.
 
The Equipment-Free Exercise: Single-Leg Hip Extension with Elevated Foot




 
Lie face up on a mat with your knees bent and feet flat on a six-inch step or box. Place your arms at your sides, palms up. Lift your lower right leg off the floor so that it’s straight, with your thighs still parallel to each other. Keep this leg straight (and your thighs parallel) as you press up. Keeping your other foot flat on the box, squeeze your glutes to raise your hips off the floor until your body forms a straight line from your knees to your shoulders. Pause for a second at the top of the exercise, then slowly return to the start position. Do four reps on this side, then switch legs and repeat on the other side.
 
Minimal-Equipment Move: Stability Ball Hip Extension and Leg Curl




 
Lie on your back with your lower legs on an exercise ball. Extend your arms to the sides. Squeeze your glutes to raise your hips so your body is straight from shoulders to knees. Pull your heels in so the ball rolls towards your butt. Pause, then roll your heels back out. Drop your butt and hips to the ground, and repeat. Try for five reps to start.

The Machine: Calf Raise 
 
Your calves will be worked by almost any leg exercise—squats, lunges, jumps, split squats and the like—you do while standing, Wunsch says.
 
If you’re looking for that extra calf burn and pop you get from the machine, though, he suggests performing a lunge with the heel up. Your form is key. “Make sure the tibia [shin] stays very vertical,” he says. Making sure your knee doesn’t come forward past your toes can keep it safe from discomfort and potential injury.
 
The Equipment-Free Exercise: Heels-Up Lunge


 
Stand with your feet shoulder-width apart. Take a large lunge step forward with your right leg, descending as you step until both knees form 90-degree angles, keeping your right heel off the ground and your shin perpendicular to the floor. Press through your right foot to stand back up. Once you finish all your reps on the right side, do an equal number with your left foot forward. Try for five reps on each leg to start, working from two sets up to four sets.  
The Machine: Seated Triceps Dip 
 
Unlike a bodyweight dip, this machine takes your core out of the equation: Because you’re seated, you don’t need to stabilize your body. Triceps dips on a chair at home can also cause a different problem, says Mike Wunsch. Putting your arms behind you to perform the move can put your shoulder at risk for pain or injury.
 
Instead, Wunsch recommends using the arm rest of your couch because “it’s high and it’s soft.” You can use it to do a pair of exercises that will work your triceps even better than the seated dip, and in two different ways. The elevated diamond pushup works the muscle through a movement you’re used to with any repped exercise, while the reverse lat dip will work the triceps isometrically, meaning they stay still, similar to how a plank works your core. Because you don’t bend your elbows as in a chair dip, your shoulders won’t be at as much of a risk.
 
The Equipment-Free Exercise 1: Elevated Diamond Pushup




 
Place your hands close together on the arm of a sofa with your index fingers and thumbs touching. The space between your hands should form a diamond shape. In this position, assume a straight body line from head to heels. Bend your elbows to lower your body until your chest reaches your hands, maintaining the rigid body line throughout the movement. Press back to start, maintaining the body line. Try for five reps to start.
 
The Equipment-Free Exercise 2: Reverse Lat Dip
 


Place your hands behind you on the arm of a sofa, with your shoulders directly above your hands. Tuck your shoulder blades down and back, as if you were trying to tuck them into the back pocket of a pair of jeans. Keeping your arms straight and triceps flexed, allow your shoulders to come straight up towards your ears as your torso drops down slightly. Use your lats—the big muscles in your back—to bring your shoulders back down to the starting position.
 
If this is too difficult, bend your knees and bring your feet closer to your butt, but do the rest of the movement as shown. Try for sets of five reps to start.

The Machine: Lat Pulldown 
 
This is a great exercise to target that back muscle, but without equipment, vertical pulling is difficult to replicate at home, Wunsch says. If you can get your hands on a resistance band, the exercise can be done with the band affixed to the top of a door.
 
For an additional alternative that works your back from a different angle, Wunsch suggests a bent-over band pull-apart. The move will help you train bringing your shoulder blades together—an important function when doing lat pulls. As you do the exercise, “imagine squeezing a pencil between your shoulder blades,” he says. This movement—called scapular retraction—is important for keeping your shoulders in a healthy position.
 
Minimal-Equipment Move: Bent-Over Band Pull-Apart


 
Stand holding the band loose in your hands with feet hip-width apart, knees slightly bent. Push your hips back like you’re opening a door behind you with your backside. This starts the hip hinge. Keep pushing your hips back so that your back remains flat until it is nearly parallel to the floor. Maintaining this flat back position, pull the band apart to the sides so that your upper body forms a “T” shape. Return to start and repeat. Start with just a few reps so you can maintain the flat back posture. Work your way up to sets of five.

The Machine: Leg Press 
 
For some people, the leg press seems like a safer option than a squat—and it can be, says Arent.
 
“If you have low back issues, it’s more back stabilizing than a squat,” he says. Thanks to shoulder impingement issues, Arent will sometimes swap back squats for leg presses to avoid shoulder pain under the bar.
 
For those who don’t feel comfortable with the movement, though, squats aren't the only option at-home option for replacing this machine. Without resistance, leg exercises can get too easy, Arent says, but moving to one leg can make it harder once again. Lunges are again a great option here; but once they’re too easy, he suggests graduating to the rear-foot elevated split squat.
 
The Equipment-Free Exercise: Rear-Foot Elevated Split Squat
 
Place one foot behind you on the first or second step of a staircase, with your other foot in front so you’re in a position similar to a lunge. Keeping your torso upright, push your hips back and bend your front knee to descend into a split squat—your torso should be upright, and your front knee should be bent 90 degrees so that your shin is perpendicular to the floor. Press through your front heel to return to the starting position. As the exercise gets easier, move your foot up another step. Start with three reps on each leg, going for three sets total.
 
The Machine: Torso Twist 
 
This is another machine that may not do what its users really want. Despite its appearance, it doesn’t train your core’s rotation in the way it really works, and it won’t make your oblique muscles smaller and tighter—in fact, it does just the opposite.
 
“If you add a lot of weight to your obliques, they grow,” Arent says. “Powerlifters have thick waists because they use a lot of oblique engagement. That’s not a bad thing—but people should know what they’re getting from an effort like this.”
 
He says the twisting also isn’t done the way your core is meant to rotate. Because your pelvis is fixed by sitting in the machine’s chair, your lumbar spine ends up rotating. When you rotate properly and naturally, “your hips are free to rotate so you don’t isolate pressure on the lumbar region.”
 
To get this rotation effect, Arent suggests trying the seated Russian twists mentioned earlier by Mike Wunsch. If you’ve got a medicine ball available and a wall that can handle it, try a sideways throw, too. You’ll work your rotational core in a healthy manner while getting out a ton of stress in the process.
 
Minimal-Equipment Move: Side Medicine Ball Wall Throw
 
Stand with a wall on your right side about four feet away, and the ball on your left hip, held with both hands. With knees slightly bent, twist through your torso to swing the ball around towards your right hip, releasing it so it flies against the wall around chest height. Catch the ball and rotate back to start. Repeat this sequence on the right five times, then turn around and repeat to the left.

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About The Author

Greg Presto Greg Presto
Greg Presto is a sports and fitness reporter and video guy based in Nairobi, Kenya who thinks fitness should be fun and an adventure, whether you're on a trail, in the gym or on the living room floor. He is an ACE-certified personal trainer whose work has appeared in Men's Health, Women's Health, Shape, Prevention, Reebok, USA Today and other publications. Follow him on Twitter @gregpresto.