Squats can strengthen the legs, improve mobility and support healthy aging, but improper technique can limit their benefits and place unnecessary strain on the knees, hips and lower back.
By yourNEWS Media Newsroom
One of the simplest exercises for building lower-body strength may also be among the most valuable for maintaining independence with age. Squats require little equipment, engage several major muscle groups and help strengthen the movements people depend on for walking, climbing stairs, rising from chairs and maintaining balance.
However, performing squats incorrectly can reduce their effectiveness and increase physical strain. An October 4 report published by The Epoch Times, updated October 6, identified six common technique errors and explained how correcting them can help people develop stronger legs while improving movement control.
Squats primarily engage the quadriceps, which straighten the knees, and the gluteal muscles, which extend the hips and help stabilize the pelvis. The exercise also recruits the hamstrings, calves and abdominal muscles, making it an effective compound movement for developing strength across the lower body.
Because squatting resembles movements performed throughout everyday life, its benefits extend beyond traditional fitness training. Physical therapists frequently incorporate squat variations into rehabilitation programs to address leg weakness, mobility limitations and impaired balance, particularly among older adults who may be more vulnerable to falls.
The Hospital for Special Surgery identifies squats as an exercise that can improve stability, strengthen the core and lower body, support athletic performance and help maintain mobility as people age. The movement can also be adapted to accommodate different strength levels, from assisted chair squats to progressively heavier resistance exercises.
Additional benefits may extend to bone and cardiovascular health. Studies involving high-intensity resistance and impact training have found improvements in bone mineral density in certain populations, although those results reflect structured exercise programs rather than squats alone. Researchers have also identified associations between lower-body strength, walking performance and important health outcomes among older adults and people with cardiovascular disease.
Maintaining muscle strength becomes especially important as aging contributes to declines in muscle mass, power and neuromuscular coordination. Stronger legs can support balance recovery and everyday movement, although preventing falls also involves factors such as vision, medication effects, environmental hazards and overall physical coordination.
Despite these advantages, several easily overlooked technique problems can interfere with results.
One common mistake is performing squats with an unnecessarily limited range of motion. Some exercisers descend only a few inches despite having the strength and flexibility to move farther, reducing the work performed through the available range of the hips and knees. A deeper squat can increase the demands on certain muscles, provided the movement remains controlled and comfortable.
Squat depth, however, should reflect individual mobility rather than an arbitrary requirement. People with joint restrictions, previous injuries or balance limitations may benefit from shallower movements. For many individuals, lowering until the thighs approach parallel with the floor provides a useful starting point, while others can safely descend farther without compromising their posture.
A second problem occurs when the knees collapse inward as the body lowers or rises. This movement, sometimes called knee valgus, can indicate inadequate muscular control or difficulty stabilizing the hips and legs. Repeated, uncontrolled inward movement may place additional stress on the knees, particularly during loaded exercises.
Keeping the knees generally aligned with the direction of the toes can help distribute forces more effectively. The American College of Sports Medicine-aligned guidance discussed by orthopedic and rehabilitation specialists emphasizes stable foot placement, abdominal engagement and controlled knee movement throughout the exercise.
Another frequent error involves rounding the lower back, especially near the bottom of a squat. As the hips move downward, some exercisers allow the pelvis to tuck excessively beneath the torso, changing the position of the lumbar spine. Although some natural spinal movement is expected, pronounced or uncontrolled rounding under resistance may increase discomfort and make it harder to maintain an effective lifting position.
Maintaining a reasonably neutral spine and engaging the abdominal muscles can improve trunk stability. A person who begins losing control of the lower back near the bottom of the movement may need to reduce squat depth, improve mobility or use a variation that better accommodates their anatomy.
Excessive forward leaning presents a fourth potential problem. While some forward movement of the torso is normal and necessary during squats, particularly depending on body proportions and squat style, allowing the upper body to fold excessively can shift demands toward the back and interfere with balance.
The solution is not necessarily to keep the torso perfectly upright. Instead, exercisers should coordinate hip and knee bending while maintaining control of the spine and keeping pressure distributed across the feet. The hips should move backward and downward in a motion similar to sitting into a chair, without allowing the body to collapse forward.
A fifth mistake occurs during the return to standing, when the hips rise substantially before the shoulders. This can turn what should be a coordinated leg-driven movement into an exaggerated forward bend, forcing the back and hips to compensate as the exerciser attempts to straighten the body.
Keeping the abdominal muscles engaged and allowing the hips and shoulders to rise together can help maintain a more efficient movement pattern. The legs should provide the primary force needed to return to standing, while the trunk remains stable rather than folding forward.
The final error involves allowing the heels to lift from the floor. As weight shifts toward the toes, the exerciser may lose stability and find it more difficult to maintain balance. Limited ankle mobility, poor weight distribution or attempting to descend beyond a comfortable range can contribute to this problem.
Maintaining steady contact between the feet and the ground generally improves stability during a standard bodyweight squat. However, certain advanced squat variations intentionally use elevated heels, so the technique should be evaluated in relation to the exercise being performed.
A physical therapy guide to squat mechanics emphasizes that hip, knee, ankle and spinal mobility all influence how a person performs the movement. Anatomical differences and existing joint conditions may require adjustments in stance, depth or exercise selection.
For beginners, establishing proper technique begins with a stable standing position. Place the feet approximately hip-width to shoulder-width apart, with the toes pointing forward or slightly outward. Keep the head in a neutral position, engage the abdominal muscles and allow the shoulders to remain relaxed.
The descent should begin by bending the hips and knees together, lowering the body gradually as though sitting into an imaginary chair. The knees should follow the direction of the toes, while the feet remain stable and the lower back maintains a comfortable, controlled position.
A bend of approximately 90 degrees at the knees can serve as an initial target for people who have sufficient mobility, although it is not a requirement for everyone. The movement should stop before discomfort, loss of balance or excessive spinal rounding develops.
Control is particularly important throughout the descent. As the Epoch Times exercise guide advises, “Move slowly enough through the movement that you don’t sway as you perform the exercise.”
To return to standing, press through the feet while straightening the hips and knees in a coordinated motion. Keep the abdominal muscles engaged and avoid allowing the hips to rise significantly faster than the shoulders. Breathing naturally, including exhaling during the upward phase, can help maintain control.
People beginning a squat routine may perform the movement without added resistance until they can repeat it comfortably. A chair positioned behind the body can provide a depth reference or a seated starting position, while a stable support may help individuals with balance limitations.
Once technique improves, small hand weights can increase the muscular challenge. The Epoch Times guide suggests that exercisers may begin with approximately two pounds in each hand, although additional resistance should be introduced only when bodyweight squats can be performed safely.
For individuals who have established sufficient strength and control, weighted squats can create additional demands on the quadriceps, gluteal muscles and trunk. Progressive resistance training may also help preserve muscular strength and functional capacity as people grow older.
The guide recommends working toward three sets of 12 repetitions while adjusting the number of sets and repetitions to individual abilities. Beginners may benefit from fewer repetitions, additional rest periods or assistance, while experienced exercisers can gradually increase resistance as their strength develops.
Consistency and proper technique remain more important than immediately performing large numbers of repetitions or lifting heavy weights. Individuals experiencing persistent joint pain, swelling, instability or back discomfort should seek guidance from a qualified healthcare professional or physical therapist before continuing.
Squats offer a practical way to strengthen muscles that support essential daily activities, and their adaptability makes them useful across a wide range of ages and fitness levels. By correcting common technique errors and progressing at an appropriate pace, exercisers can make the movement safer, more effective and more beneficial for long-term mobility and physical independence.
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