SATURDAY, June 14, 2025 (HealthDay News) — Think you need to spend hours lifting weights to build muscle or get stronger?
Researchers at Florida Atlantic University say just a few smart, focused sets may be all it takes this summer to see real gains.
The study — available as a preprint on SportRxiv — reviewed results from dozens of earlier studies on training volume. Volume means how many sets you do during a workout, while frequency refers to how often you train each week.
“Our findings show that you don’t need lengthy gym sessions to get stronger or build muscle,” senior author Michael Zourdos, a professor of exercise science at FAU, said in a news release.
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“There’s a tipping point where the benefit of doing more becomes very questionable – and in some cases, it may even work against you when considering fatigue, time and so on,” he added. “This challenges the common assumption that more volume always equals more gains.”
His team looked at how training volume affects muscle growth and strength. It found that doing more sets can help — but only up to a point.
The benefits for muscle growth increased until about 11 fractional sets per session. For strength, the sweet spot was even smaller — just two direct sets per session.
“It’s important to understand the difference between direct and fractional sets,” Jacob Remmert, the study’s lead author and a PhD candidate at FAU.
Fractional sets include both direct and indirect work for a muscle group. For example, triceps exercises count toward chest strength because they help with pushing, even if they aren’t the main movement.
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Direct sets, on the other hand, target the exact muscle or movement being tested — like bench presses for chest strength.
The study introduced a new concept called PUOS — the Point of Undetectable Outcome Superiority. It marks the point where extra sets don’t add much benefit.
The researchers say this could help people design more efficient workouts.
So, what does this mean for folks wanting to focus on building strength? Just one to two hard, dedicated sets per session can pay off!
“Rather than simply piling on more sets in a single workout, people aiming for strength gains may get more out of increasing training frequency – choosing shorter, more frequent sessions instead,” Remmert said.
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To be fair, he added, some folks want to squeeze “every last drop of muscle growth out of their program” no matter the cost.
“For them, experimenting with higher volumes makes sense, so long as they keep a close eye on recovery,” Remmert said.
The study has not yet been peer-reviewed and as such, findings should be considered preliminary.
More information
The Mayo Clinic has more on the do’s and don’ts of weight training.
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SOURCE: Florida Atlantic University, news release, June 10, 2025
What This Means For You
You don’t need to spend hours at the gym. Just a few smart, consistent sets each week can lead to real strength and muscle gains
Hip soreness is a terribly common issue—it’s something that I certainly suffer with—so I’m always trying to get to the bottom of where this soreness originates from and what you can do about it.
According to Dr Shady Hassan, MD, an interventional pain and sports medicine physician and the founder of NefraHealth, immobility is the root cause of this discomfort.
“Most immobility comes from two extremes: sustained stillness and repetitive overuse,” Hassan tells Fit&Well.
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“For the average professional [desk worker], sitting for eight to 10 hours a day keeps the hip flexors in a shortened state. This is essentially a sitting penalty—the physical cost of a sedentary lifestyle.”
As a sports medicine specialist, Hassan sees the other extreme too, athletes with hip pain stemming from overuse.
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“Soreness often stems from repetitive loading without adequate recovery, leading to micro-trauma in the labrum or surrounding tendons,” says Hassan.
Additionally, “when the muscles around the joint—like the psoas or glutes—become imbalanced, the brain locks down the joint to protect it, which we perceive as tightness.”
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It’s not worth putting up with sore hips, because Hassan has seen how it can have a knock-on effect in other areas of the body.
“If your hips don’t move, your body will find that movement elsewhere,” he says.
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He explains that the nearest joints—the lumbar spine and knees—are often the ones that take the strain.
“When the hips are locked, the lower back is forced to over-rotate or over-extend to compensate,” he says.
“Think of it like a rusty hinge on a door: if the hinge won’t move, the doorframe eventually starts to warp and crack under the pressure.”
“Stiff hips are a leading cause of disc herniations and facet joint pain because the spine is doing work it wasn’t designed to do.”
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But Hassan is a specialist in injury prevention and offered a starting point for keeping your hips in good working order.
How to improve your hip mobility
Hassan says that the best way to prevent hip soreness is to consistently strengthen and stretch your hips in all the ways they can move.
“You have to train the hip in all three planes of motion,” he says. That means moving forward and backward (through the sagittal plane), side to side (the frontal plane) and rotating them (the transverse plane).
“Strengthening the gluteus medius is also non-negotiable—a stable pelvis protects the hip joint from unnecessary shearing forces,” he adds.
Hassan suggests the following three exercises if you are experiencing limited hip mobility.
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1. 90/90 stretch
How to do a 90/90 Hip Stretch properly – CORRECT FORM IS ESSENTIAL – YouTube
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Time: 30-60sec each side
Why Hassan recommends it: “This is the gold standard for addressing both internal and external rotation simultaneously.”
How to do it:
Sit on the floor with your right leg in front of you, knee bent to 90°, and your left leg out to the side, with your knee bent to 90°.
Without bending your spine, lean slightly forward from your hips over your front shin—you should feel a stretch in your outer hip.
Hold for time, then repeat on the other side.
2. World’s greatest stretch
The World’s Greatest Stretch (Mobility Exercise) by Squat University – YouTube
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Time: 30-60sec each side
Why Hassan recommends it: “This is a dynamic movement that hits the hip flexors, hamstrings and thoracic spine.
How to do it:
Start in a high plank position, with your shoulders over your hands and your body in a straight line from head to heels.
Step your right foot to the outside of your right hand.
Lower your right elbow to the instep of your right foot.
Raise your right hand straight up, rotate your torso to face right and look up at your hand.
Continue for time, alternating between your elbow by your instep and your hand above you.
Return to the high plank position, then repeat on the other side.
3. Couch stretch
The Couch Stretch Done Correctly – YouTube
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Time: 30-60sec each side
Why Hassan recommends it: “Most people stretch their hip flexors incorrectly by arching their back—this version fixes that.”
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How to do it:
Kneel with a couch behind you.
Place the top of your right foot on the couch keeping your right knee on the floor, then step your left foot in front of you.
Adjust your position so your left knee is bent to 90° and is directly above your left foot.
Tuck your tailbone under (posterior pelvic tilt) and squeeze your left glutes.
Raise your torso, lifting your hands off the floor—you should feel a stretch in the top of your right thigh.
Hold for time, then repeat on the other side.
Dr Shady Hassan MD
Dr Shady Hassan MD is the founder of NefraHealth, an interventional pain and sports medicine practice. He is board-certified in physical medicine and rehabilitation with subspecialty certification in both interventional pain medicine and sports medicine.
He completed his fellowship in interventional spine and sports medicine at Alabama Orthopedic Spine and Sports Medicine Associates. He also served as chief resident during his residency at SUNY Downstate Medical Center in Brooklyn.
Modern exercise culture has spent years glorifying exhaustion. The harder a workout feels, the more effective people assume it must be. Sore muscles became badges of honor, while gentle movements were often dismissed as ‘not real exercise.’
A man lifting a dumbbell. Image credits: Andres Ayrton/Pexels
However, according to a new study, some of the most efficient ways to build muscle strength may happen during the slow, controlled moments people usually ignore—walking downstairs, lowering weights, or carefully sitting into a chair.
Study author Kazunori Nosaka, who is the director of exercise and sports science at Edith Cowan University, argues that eccentric exercise—a type of muscle action that occurs while muscles lengthen under tension, may offer a more practical alternative. Its opposite, concentric exercise, is the shortening (lifting) phase where muscles produce force to overcome resistance.
Instead of demanding maximum effort, these movements appear to train muscles while placing less stress on the body.
“The idea that exercise must be exhausting or painful is holding people back. Instead, we should be focusing on eccentric exercises which can deliver stronger results with far less effort than traditional exercise – and you don’t even need a gym,” Nosaka said.
Muscles work differently on the way down
The study examines decades of earlier research on eccentric exercise rather than presenting a single laboratory experiment. It focuses on a simple but often overlooked detail of human movement, which is how muscles behave differently depending on whether they are shortening or lengthening.
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When someone lifts a dumbbell, climbs stairs, or rises from a chair, muscles shorten as they generate force. Scientists call this a concentric contraction. Eccentric contractions happen during the opposite phase—when the muscle stays active while stretching.
Examples include lowering the dumbbell back down, descending stairs, or slowly lowering the body into a seated position. According to the review, muscles can tolerate and produce greater force during eccentric actions while using comparatively less energy and oxygen.
“Eccentric contractions are distinguished by their ability to generate greater force than concentric or isometric contractions, while requiring less metabolic cost,” Nosaka notes.
Researchers believe this happens because muscles act more like controlled braking systems during lengthening movements, resisting gravity rather than directly overpowering it. As a result, people may gain strength without putting the same level of demand on the cardiovascular system.
This difference could make eccentric exercise especially useful for individuals who find traditional workouts physically overwhelming.
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“Eccentric exercise training provides numerous benefits for physical fitness and overall health, making it suitable for a wide range of individuals from children to older adults, clinical populations to athletes, and sedentary to highly active people,” Nosaka added.
Gravity may be doing more training than we realized
To support this argument, the study brings together findings from several earlier research works. For instance, one study from 2017 tracked elderly women with obesity who repeatedly walked either upstairs or downstairs over a 12-week period.
While climbing stairs is normally considered the tougher workout, the women assigned to walk downstairs showed stronger improvements in measures including blood pressure, heart rate, and physical fitness. The results suggested that resisting gravity during downward movement may provide a surprisingly powerful training effect.
The review also discusses eccentric cycling, where participants resist pedals driven backward by a motor instead of pushing them forward in the usual way.
Although the movement feels unusual and requires concentration, earlier studies found it improved muscle power, balance, and cardiovascular health while feeling less exhausting than standard cycling workouts.
Another important part of the review addresses muscle soreness, one of the main reasons eccentric exercise never became widely popular outside rehabilitation settings. People often experience delayed onset muscle soreness, or DOMS, after unfamiliar eccentric workouts.
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“Unaccustomed eccentric exercise is often associated with muscle damage characterized by delayed onset muscle soreness (DOMS) and a reduction in muscle force-generating capacity lasting more than a day. However, this effect diminishes or at least is attenuated when the same eccentric exercise is repeated (known as the repeated bout effect),” Nosaka explained
Many eccentric exercises require little or no equipment. Slow squats into a chair, heel-lowering movements, controlled wall push-ups, or even maintaining posture against gravity can activate eccentric muscle work.
Moreover, some studies referenced in Nosaka’s review suggest that just a few minutes of these exercises each day can still produce measurable improvements in health and strength.
The future of fitness may feel less punishing
The findings challenge the mindset surrounding fitness itself. Many people abandon exercise routines because they associate physical activity with pain, fatigue, or lack of time. Eccentric exercise suggests that effective movement does not always need to feel extreme.
If future research continues to support these findings, eccentric exercise could influence far more than gym routines. It may reshape physical rehabilitation, elderly care, injury recovery programs, and public-health recommendations aimed at increasing physical activity among sedentary populations.
These exercises also place lower demands on the heart and lungs while still strengthening muscles. They could help people who are unable or unwilling to follow intense training programs.
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Nosaka suggests that “we should establish eccentric exercise as standard practice, and make it common, accessible, and widely accepted as the ‘new normal’ of exercise to improve life performance and high (athletic) performance.”
However, this does not mean eccentric exercise is a universal replacement for all forms of physical activity. The current paper is a review of previous studies, and its findings still need to be validated through experiments and large-scale clinical trials.
Nosaka also notes that “Future studies should investigate mechanisms underpinning the effects of eccentric exercises in comparison to other types of exercises (e.g., isometric exercises, concentric exercises, aerobic exercises),”
This could help scientists design safer and more personalized exercise programs for different age groups and health conditions.
The study is published in the Journal of Sport and Health Science.
Longevity is something of a buzzword right now, and the idea of living better for longer is undoubtedly appealing. Mobility is a key component of this.
By definition, mobility is the ability to move freely, something that tends to deteriorate as we age. But there are simple things we can do to maintain it.
One of them is “joint flossing”, a daily practice recommended by experienced coach and mobility specialist Darren Ellis.
“Mobility is a conflation of strength and flexibility,” he says. “I always used to believe that strength was the foundation of everything in exercise. But if you’re strong and you can’t move through a decent range of motion at certain joints, you’re still suffering.
“When you reach down to pick something up from the floor and it seems further away than it used to be, you suddenly realise how crucial mobility is.”
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Below, Ellis explains how to use his three-minute joint flossing protocol to help ease stiff joints and improve your ability to move.
How to try joint flossing
The body works on a rough “use it or lose it” basis. If you rarely move a joint through its full range of motion, the tissues around it can become tight, stiff and sore. The natural remedy for this is gradually reintroducing movement in the affected areas.
“The easiest place to start when improving mobility is to get the joints moving more freely with some simple joint circles,” says Ellis. “I sometimes call it joint flossing because, firstly, you are flossing nutrients through the joint by promoting blood flow in this area, and secondly, it’s something you should do regularly.”
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You start with neck circles then work your way down your body from your head to your toes, as shown in the video above – if something can move, you move it.
Ellis recommends doing five to 10 repetitions per body part, using a controlled tempo and a range of motion that feels safe and comfortable for you.
“There’s no need to force anything,” he says. “You’re just giving your body a chance to move again.”
Doing this consistently will improve your physical capacity and mobility, allowing you to return to other movements and exercises over time.
Read more: Five stretches you should be doing every day, according to a flexibility expert