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Include these 8 isotonic exercises to improve strength and flexibility

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Include these 8 isotonic exercises to improve strength and flexibility

Isotonic exercise is a form of strength training that is beneficial for those looking to build muscle and lose weight. Exercises like lunges, and squats come under this type of training.

If you enjoy working out, your fitness routine probably includes exercises like squats, lunges, and push-ups. These are all examples of isotonic exercise, a form of strength training in which the muscles are required to resist weight over a range of motion. This type of training is not only good for improving physical strength, but also for flexibility, and balance. It is also an effective way to burn calories and get rid of extra body fat. As you explore the benefits of isotonic exercise, know which moves you can include in your fitness regime.

What is the isotonic exercise?

It is categorised as exercise which involves the contraction and shortening of muscles through a variety of movements, including those of the joint. “During this type of training, the body’s muscles change their length as per the movement to create and support joint movement with constant load or weight,” says fitness expert Aman Puri. This type of exercise overcomes resistance, where the body’s muscles keep a consistent level of tension or load during that movement.

It usually includes exercises like push-ups, and running or even everyday tasks like cleaning, or carrying groceries. Isotonic exercise can also be performed with equipment involving weightlifting machines, dumbbells and resistance bands.

Isotonic exercise can build strength. Image courtesy: Adobe Stock

What are the benefits of doing isotonic exercise?

1. Strengthens muscle and endurance

This type of exercise increases muscular strength and challenges muscles by focusing on repetitive movements that enhance endurance and improve overall strength. “In isotonic exercise, the muscles relax and contract through different range of motions, gaining more ability to handle repetitive and sustained movements,” says the expert. Isotonic exercise can improve muscle tone, increase physical power, and help build muscles, as per research published in Healthcare in 2022.

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2. Improves flexibility and joint mobility

Isotonic exercise includes motions from a diverse range of movements, so it enhances flexibility and improves the mobility of joints. During a 2022 study, published in Applied Sciences, isotonic exercise was found to be effective in improving flexibility.

3. Promotes blood circulation

Isotonic exercise like running which involves dynamic and repetitive movements promotes cardiovascular health. “It enhances blood circulation and oxygenation, which can boost heart health. The pumping of the blood may also reduce the chances of stroke,” says Puri.

4. Enhances balance and coordination

In this type of exercise, muscles are worked upon in a controlled and repetitive manner, which improves neuromuscular control. “This controlled movement leads to balanced and better coordination by improving and stabilising muscles, flexing up the joints improving overall body movement,” says the expert

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5. Helps manage weight

It helps improve metabolism and promote fat burning as they involve several muscle groups and require repetitive activity which helps burn more calories. Squat, a popular move, is an example of isotonic exercise. During a 2013 study, published in the Journal Of Sports Science And Medicine, researchers found that squat training significantly decreased body fat and increased the lean body mass in participants.

What is the difference between isometric and isotonic exercises?

  • It may be beneficial for strengthening muscle mass and improving power and endurance. “On the other hand, isometric exercise may be beneficial for toning or for those recovering from injuries as it does not involve loading the muscles or increasing muscle tension,” says the expert.
  • While performing isotonic exercise, the muscle length is shortened with constant tension or weight. On the other hand, while performing isometric exercise, the muscle length does not change as tension increases.
  • Also, isotonic exercises involve joint movement whereas isometric exercises do not involve any joint movement.

What are the examples of isotonic exercise?

1. Lunges

  • Take a step forward with one of your legs then gradually lower your hip with both your knees bent around 90 degree.
  • Push your body through the front foot to go back to the starting position and do it again with your other leg.

2. Squats

  • Stand up on your feet apart aligned with the shoulder-width.
  • Bend your knee, lowering your hips and keeping your back in a straight position.
  • Continue lowering your hips down till your thighs become parallel to the floor.
  • Push up your body by returning back to a standing position while straightening your knees.

Also Read: 10 benefits of squats — and 7 squat variations to add variety to your fitness routine

3. Push-ups

  • To perform push-ups, start with the position of the plank. Place your hands a little wider apart from shoulder width.
  • Lower your body down by bending both your elbows reaching lower till your chest is near the ground level.
  • Push up your body back keeping your back straight.
  • Straighten your elbows as you push up your body and go back to the starting position.

4. Kettlebell swings

  • In this isotonic exercise, first hold the kettlebell weight with both your hands and then stand by keeping your feet shoulder-width apart.
  • Gradually bend your knees and swing back the kettlebell between both your legs, moving your hips forward trying to swing the kettlebell upto your chest level.

5. Leg press

  • It is performed with the leg press machine. Sit by placing your feet shoulder-width apart on the machine’s platform.
  • Extend your legs upwards, pushing the platform upwards.
  • Gradually bend your legs back, lowering the weight down.
Isotonic exercise
Do jumping jacks for strength and weight loss. Image courtesy: Adobe Stock

6. Jumping jacks

  • Jumping jacks do not require any equipment. You just need to simply stand with arms straight.
  • Start jumping while extending the feet apart and raising both your arms overhead in alternate movement.
  • Jump back again to return back to the straight position.

7. Deadlift

  • To carry out this exercise, stand with your feet and hips aligned to the same width.
  • Grip the barbell with both hands in front of your thighs and start lifting the barbell while bending your knees, and lowering your hips.
  • Lift the weight holding the barbell and then lower the barbell back to the ground keeping your back straight.
  • After that return to the standing position, straightening the knees and hips.

8. Mountain climber exercise

  • Start in a plank posture with your arms straight on the ground position and extending your legs backwards supported by your toes.
  • Bring your knees in forward direction near the chest, and switch legs alternately.

Who should avoid doing isotonic exercise?

“Everyone can perform some form of isotonic exercise regularly,” says Puri.

  • Since isotonic exercise also involves weights, those with sprains, muscle tears or bone injuries involving fractures and dislocation should avoid performing an intensive form as it may aggravate the risk of injuries.
  • Those with cardiovascular issues like heart disease and high blood pressure should consult their doctor as performing isotonic exercise can raise blood pressure levels.

Isotonic exercise, a form of resistance training, is a great way to improve muscle strength and endurance. So, go for exercises like lunges, and deadlift to stay strong and fit.

Related FAQs

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Is yoga isotonic or isometric?

Yoga mainly involves isometric movements. Isometric muscle contractions can be seen in asanas like uttanasana (standing forward bend) and dandasana (staff pose), where moving from the plank position leads to the lengthening of muscles and joint movement while resisting gravity.

Is jumping isotonic?

Yes, jumping is an isotonic exercise as it involves altering the muscle length with muscle resistance in motion. Jumping is also known as a plyometric strengthening exercise and helps increase isotonic movement involving muscle contractions. It especially improves the vertical jumping ability.

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Fitness

Is Exercise Overrated For Arthritis Pain? Latest Study Challenges Long-Held Beliefs

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Is Exercise Overrated For Arthritis Pain? Latest Study Challenges Long-Held Beliefs

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Exercise for arthritis pain may be “minimal and short-lived,” claims a new umbrella study, but rheumatologists say the full story changes everything.

A new 2026 review suggests exercise may offer only modest relief for osteoarthritis, but experts say consistency and the right approach can still make a difference. (Image-iStock)

A new 2026 review suggests exercise may offer only modest relief for osteoarthritis, but experts say consistency and the right approach can still make a difference. (Image-iStock)

Exercise has long been considered essential for osteoarthritis care. Recently, a new umbrella study suggests that its pain-relief may be short-lived. However, experts argue that consistency and strategy may matter far more than the numbers alone indicate.

When it comes to osteoarthritis care, exercise has been positioned as the first-line recommendation. Doctors not only prescribe it, but clinical guidelines reinforce it as well.

Patients have been encouraged to exercise and move more to preserve mobility, but a February 2026 study published in RMD Open has prompted fresh debate, suggesting exercise may offer only small, temporary improvements in pain and function.

Dr Sandeep Nagar, Consultant – Rheumatology at Yatharth Super Speciality Hospitals, Omega-1, Greater Noida, stresses that the numbers need context. “Expectations should be reframed rather than lowered,” he explains.

“Modern pain management prioritises functional capacity over achieving a ‘zero pain’ score. A 7-15 point reduction on a 100-point scale is considered a clinical success because it often enables patients to do significantly more despite some remaining pain.”

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What Is Osteoarthritis, And Why Exercise Matters

Osteoarthritis is one of the most common degenerative joint diseases globally. It involves cartilage breakdown, leading to pain, stiffness, swelling, and limited range of motion. Knees, hips, and hands are most frequently affected, though any joint can be involved.

Since the condition is progressive and incurable, treatment focuses on symptom control and preserving function. Exercise has traditionally been central to that strategy. It enhances circulation, improves joint alignment, strengthens surrounding muscles, and reduces stiffness.

Over time, it can also help patients maintain independence and delay invasive interventions. Yet, the new ‘umbrella review’ raises an important question: Are those benefits as substantial as long believed?

What The Study Says

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The February 2026 study, titled “Effectiveness of exercise to ease osteoarthritis symptoms likely minimal and transient,” conducted what researchers describe as an umbrella systematic review, an overarching analysis of existing systematic reviews and randomised clinical trials.

Researchers searched medical databases for relevant studies published up to November 2025. They included:

  • Five systematic reviews involving 8631 participants
  • Twenty-eight randomised clinical trials involving 4360 participants

In total, nearly 13000 patients were represented. The analysis examined exercise in hip, hand, knee, and ankle osteoarthritis.

It compared exercise against multiple alternatives, including no treatment, placebo, patient education, manual therapy, NSAIDs, corticosteroid injections, hyaluronic acid injections, arthroscopy, osteotomy, and joint replacement. The experiment aimed to determine whether exercise truly stands out as a first-line intervention.

New research questions how much exercise truly helps osteoarthritis, yet specialists insist structured, supervised routines remain essential. (Image-Canva)

What The Study Found

Compared with placebo or no treatment, exercise reduced pain by between 6 and 12 points on a 100-point scale. For knee osteoarthritis, effects were small and short-lived, with very low certainty of evidence. Larger and longer-term trials showed even smaller benefits.

For hip osteoarthritis, effects were negligible. For hand osteoarthritis, they were small. Exercise did not significantly outperform patient education, NSAIDs, steroid injections, or arthroscopy in improving function. In certain trials, surgical options such as osteotomy and total joint replacement delivered stronger long-term outcomes.

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The researchers concluded:

“We found largely inconclusive evidence on exercise for osteoarthritis, suggesting negligible or, at best, short-lasting small effects on pain and function across different types of osteoarthritis compared with placebo or no treatment.”

They added that the findings “question the universal promotion of exercise therapy as the sole focus in first-line treatment.”

How Should Patients Interpret A 6-12 Point Drop?

To many readers, a 6-12 point reduction may sound unimpressive. But Dr Nagar emphasises that clinical impact is not solely about numerical magnitude. “Goals should shift from complete pain relief to improved quality of life and movement,” he says.

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“Even modest reductions can increase walking tolerance, improve sleep, and reduce fear of movement. Exercise also raises pain thresholds biologically by activating the body’s endogenous opioid systems.”

Medication Vs Movement: Risk And Cost

One of the review’s notable findings was that exercise alone reduces pain at levels comparable to NSAIDs and corticosteroid injections. Dr Nagar argues this comparison strengthens, rather than weakens, the case for exercise. “Relying on medication over several years carries higher systemic risks and rising long-term costs,” he explains.

“NSAIDs are associated with renal and gastric complications and cardiovascular events. Opioids can lead to dependency and increased pain sensitivity. Exercise, when supervised and individualised, has a superior safety profile.”

He adds that long-term medication costs often escalate. “Chronic opioid users frequently incur nearly double the annual healthcare costs. Structured exercise can potentially save hundreds per year in medication expenses and thousands over a lifetime by reducing the likelihood of surgery.”

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However, he cautions that exercise is dose-dependent. “Unlike pills, its benefits require consistent participation.”

Limitations Of The Study

Several limitations may have diluted the exercises’ apparent effectiveness.

All Exercises Were Grouped Together

Strength training, aerobic workouts, stretching, aquatic exercise, and tai chi were analysed collectively. These interventions differ substantially in intensity and physiological impact.

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Evidence suggests aerobic and resistance training often outperform stretching alone. By averaging all modalities, stronger effects may have been obscured.

Supervised Vs Unsupervised Was Not Distinguished

Supervised programs generally yield better outcomes than unsupervised routines. Professional oversight improves adherence, progression, and technique. Dr Nagar notes, “The best outcomes occur with tailored, supervised exercise combined with pain education. Active movement consistently outperforms inactivity.”

Short Study Durations

In the umbrella review, many trials lasted approximately 12 weeks. As osteoarthritis is lifelong, long-term adherence could produce cumulative benefits not captured in short trials.

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Exercise Dose And Intensity

Research suggests optimal benefits occur at around 150 minutes of moderate intensity exercise weekly. If participants exercised below that threshold, the measured effect may reflect insufficient dosing rather than efficiency. In the study, the dose of exercise was not fully accounted for.

When Does Surgery Become More Effective?

The review also found that exercise is less effective than joint replacement in certain groups, but surgery is not an early solution. Dr Nagar explains that total joint arthroplasty is recommended for symptomatic moderate-to-severe osteoarthritis (stage 3 or 4) that does not respond to comprehensive nonoperative care.

“Persistent pain, significant functional limitation, and clear radiographic joint damage despite exhaustive conservative management justify surgical intervention,” he says. “Exercise remains essential before and after surgery to optimise outcomes.”

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Why Exercise Still Matters Beyond Pain

The study focused on pain and function, but exercise delivers systemic benefits that extend far beyond the joint:

  • Weight management
  • Improved mood
  • Cardiovascular protection
  • Better sleep
  • Reduced diabetes risk
  • Lower cancer risk

“These secondary health benefits must be weighed in shared decision-making,” the review authors themselves noted. Exercise may not eliminate osteoarthritis pain entirely, but it strengthens overall resilience.

Should Exercise Remain First-Line Recommendation?

Dr Nagar believes that exercise should remain the first-line recommendation. “Yes,” he says. “Exercise delivers long-term functional and structural benefits that medication cannot. Corticosteroid injections may provide rapid relief, but effects often diminish within six months. Exercise builds strength, improves joint mechanics, and supports cartilage health.”

Unlike medication that masks symptoms, targeted movement addresses biomechanical dysfunction. Repeated injections, he notes, may even contribute to tissue degradation over time.

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How To Protect The Joints?

For those concerned about aggravating pain, structured warm-up and cool-down routines are essential. Dr Nagar recommends:

Warm-up (5-10 minutes):

  • Light cycling or brisk walking
  • Dynamic movements like leg swings, arm circles, or walking lunges

Cool-down (5-10 minutes):

  • Gradual slowing to normalise heart rate
  • Static stretches, such as hamstring or quadriceps stretches, are held for 10-30 seconds

The February 2026 umbrella review in RMD Open suggests that exercise appears to produce modest, sometimes transient reductions in osteoarthritis pain when analysed broadly.

As Dr Nagar emphasises, “The goal is not zero pain; it is better living.” Exercise may not be a miracle cure or eliminate pain entirely, but when tailored, supervised, and sustained, it remains one of the safest and most empowering tools available to people living with osteoarthritis.

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If exercise can make you feel good, why do so many people hate doing it?

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If exercise can make you feel good, why do so many people hate doing it?

Denver — The evidence is clear: Exercise has mental health benefits, although studies have come to different conclusions about how large it might be.

And yet, when February rolls around again, the gyms suddenly aren’t so crowded as New Year’s resolutions lose their shine. Nationwide, only about 30% of people meet the federal guidelines for physical activity, and even in famously outdoorsy Colorado, just 35% do.

So if exercise gets the endorphins flowing and gives a quick mood boost, why do many people find it hard to stick with?

The popular perception that exercise produces endorphins, which then raise mood, isn’t wrong, but it oversimplifies complex interactions between brain chemistry and mental states, said Katrina Oselinsky, a post-doctoral researcher at the Health and Wellness Center on the University of Colorado’s Anschutz Medical Campus.

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The same person could experience the same workout differently from day to day, depending on how they’re feeling, what else is happening in their lives and the setting where they exercise, she said.

“While endorphins are part of the picture, there’s a lot more going on,” Oselinsky said. “The same workout can feel energizing for one person and uncomfortable for another.”

While a subset of people get an immediate “runner’s high” in response to intense exercise, not everybody has the same experience, which can set others up for disappointment, said Emily Hemendinger, an assistant professor of psychiatry at CU Anschutz.

Brains differ in how sensitive they are to rewards, so some people are primed to get more or less enjoyment out of exercise – though, obviously, factors such as past experiences with exercise matter, she said.

Exercise does trigger a release of chemicals that give most people at least some sense of pleasure, but it doesn’t generate a tsunami that could drown out a person’s lack of comfort in their body, fear that others are judging them, perfectionism, boredom, physical pain or exhaustion, Hemendinger said.

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“It’s not like doing drugs, and what that lights up in our brain right away,” she said.

For most of human history, exercise didn’t exist as a separate activity: We moved because we needed to find food or because we were doing something inherently rewarding, such as dancing, said Marcelo Bigliassi, an assistant professor at Florida International University.

Now, people need to find a motivation for exercise, which isn’t always readily apparent, he said.

“We don’t do anything without a reason,” Bigliassi said.

While the brain releases dopamine, triggering the desire to repeat exercise, it can also get “really creative” in coming up with ways to avoid something uncomfortable, Bigliassi said. To get around that, people need to focus on finding something challenging enough to give them a sense of accomplishment, but not so tough that they give up, he said.

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“We don’t want people to find something they don’t like, exercise at high intensity, probably injure themselves and… feel like a failure,” he said.

The data is clear that, over time, exercise improves both mental health and cognitive abilities such as problem-solving, Bigliassi said. But many people give up long before they see those benefits because they set themselves up to fail or aren’t prepared for bumps along the way, he said.

“Consistency is much more important than everything else,” he said.

People who believe they’ll be able to accomplish what they’re trying to do report more enjoyment from a workout than those who feel defeated at the start, Oselinsky said. Having support from the people around you also improves the experience, and new exercisers tend to develop more positive feelings as they get better at the activity, she said.

Of course, we humans aren’t always great at sticking to something we don’t like, even if we know it brings benefits. So a non-exerciser’s best bet is to choose an activity they like or to bundle exercise with something else they enjoy, such as getting outside, spending time with a friend or pet, or listening to music or podcasts, Oselinsky said.

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“If you’re trying to force yourself to stick with something you don’t like, it’s going to be harder,” she said.

People often feel that they have to go to a gym, but movement throughout the day can be as good as a dedicated exercise session, Oselinsky said. That could look like doing physical labor at work, schlepping toddlers whose motivation to walk is shaky, or tending a backyard garden come spring.

Federal guidelines recommend 150 minutes of moderate activity or 75 minutes of vigorous activity each week, with some sort of muscle-strengthening exercise on two days.

But any movement that someone enjoys is a step in the right direction, whether that means jumping on a trampoline or playing with their dog, Hemendinger said.

“Joyful movement’s hard to find, but it’s important,” she said.

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Is there an ideal workout split for lifting?

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Is there an ideal workout split for lifting?
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If you’re venturing into the world of lifting, there are more than a few ways to go about curating a workout split that supports your fitness goals.

Whether you’re interested in Olympic lifting or powerlifting, the activity offers immense benefits for developing muscle, improving mobility, boosting energy levels and relieving stress. 

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For the unfamiliar, a workout split simply refers to how you curate your exercise routine and how to divide which exercises you’ll complete over a week’s worth of time, says Dr. Robert Trasolini, an orthopedic surgeon and sports medicine specialist at Northwell Health. 

Is there one split for lifting that prevails above the rest? Here’s what fitness experts say. 

Is there an ideal workout split for lifting?

“No, there really isn’t a perfect split,” says Alex Milton, a certified strength and conditioning specialist and the director of sports performance at MedStar Health. How you vary your upper and lower body workouts over the course of a week will ultimately depend on how much time you can dedicate to going to the gym. 

If you’re able to commit four to five days at the gym, one gym session could be dedicated to an upper body workout that concentrates on building strength in your chest, shoulders or arms, and the following session could focus on the lower body to work your legs, lower back and posterior chain.

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If you’re heading to the gym closer to two to three times a week, it may be more beneficial to complete full-body lifts to stay more consistent with your workouts, Milton recommends.

The push-pull-legs split is one type of lifting framework that prioritizes strength building and muscle development, says Trasolini. “Push” exercises primarily work your body’s anterior front structure, and could look like a mix of chest, shoulder and tricep workouts. “Pull” exercises consist of pulling weights toward your body, such as back or bicep workouts. The third and final portion of the split centers around leg workouts, which could include squats or dead lifts. 

Incorporating recovery into your split is essential, says Dr. Trasolini. From a physiological standpoint, exercising works to break down the muscle with the intention of rebuilding it. “You need that recovery time for your body to see the damage, reassess and then repair,” he says.

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How to lift weights

If you’re not yet an experienced weightlifter, prioritize the quality of your reps over quantity, the experts say. “There’s a big fear factor with weightlifting,” says Milton. “A lot of people think they’re gonna get hurt when they (lift), so naturally, they want to do higher reps because the weights (are) lighter and they feel a little bit more comfortable.” 

Higher reps put a bit more emphasis on cardio conditioning and endurance, whereas starting with a lower range of reps (around four to eight) will have a greater demand on your muscles and central nervous system as you gradually increase the load and intensity, Milton explains. 

If you’re a beginner to lifting, Trasolini recommends working with a fitness professional, such as a certified personal trainer or sports medicine specialist, to prioritize correct form and reduce your risk of injury while lifting. 

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