By Webfit News | 9 October 2026 | Wellbeing & Health Strength training is not just about lifting weights or looking muscular.
By Webfit News | 9 October 2026 | Wellbeing & Health
Strength training is not just about lifting weights or looking muscular. Scientific research suggests that maintaining muscle strength can help people stay active, improve metabolic health and preserve independence as they age. But does lifting heavier weights really help the body burn more calories, even while resting?
For years, many people have associated exercise with walking, running, cycling or spending hours on a treadmill. Strength training, meanwhile, has often been seen as something primarily for bodybuilders or gym enthusiasts.
That perception is changing.
Health authorities increasingly recognise muscle-strengthening activity as an important component of overall physical wellbeing.
A fitness video circulating online makes a particularly interesting claim: the heavier you lift, the more calories your body burns while resting, and the more energy you have throughout the day.
It sounds appealing. Imagine building a stronger body that continues using energy even when you are sitting at your desk, watching television or sleeping.
But how much of that claim is supported by science?
1. Your Muscles Use Energy Even When You Are Resting
The human body continuously consumes energy to keep essential systems functioning.
Breathing, circulating blood, regulating body temperature, maintaining organs and repairing tissues all require calories.
This basic energy requirement is commonly described as resting metabolic rate.
Muscle tissue contributes to that energy expenditure, even when a person is not exercising.
However, there is an important distinction.
Although muscle is more metabolically active than body fat, gaining a modest amount of muscle does not automatically create a major increase in daily calorie burning.
The body’s resting energy expenditure is also influenced by organs, overall body size, age and other physiological factors.
Building muscle can support metabolism, but claims that lifting heavier weights will dramatically accelerate calorie burning should be treated cautiously.
2. Why Strength Training Matters Beyond Weight Loss
One of the biggest misconceptions about strength training is that its primary purpose is to improve physical appearance.
Its health benefits go much further.
Resistance exercises challenge muscles to work against a force. That force might come from dumbbells, resistance bands, gym machines or simply body weight.
Over time, appropriate training can improve muscular strength and endurance.
Stronger muscles can make ordinary activities easier, including climbing stairs, carrying groceries, lifting children, gardening and getting up from a chair.
Strength training also helps maintain muscle mass during weight loss and supports bone strength.
International physical activity guidelines recognise muscle-strengthening activities as an important complement to aerobic exercise.
3. The Importance of Muscle as We Grow Older
Ageing brings gradual changes in muscle mass, strength and physical performance.
Without sufficient physical activity, these changes can make everyday tasks more difficult.
For older adults, reduced strength can affect mobility, balance and the ability to live independently.
This is why strength training should not be viewed as an activity reserved for younger people.
Exercises can be adapted for different ages and abilities, from chair-based movements and resistance bands to supervised gym training.
The World Health Organization recommends that older adults combine muscle-strengthening activities with exercises that improve balance and functional movement.
This approach is particularly relevant for reducing the risk of falls and maintaining independence.
4. Does Lifting Weights Actually Give You More Energy?
The video also suggests that lifting heavier weights can increase everyday energy.
There is some logic behind the idea, but the relationship is not as simple as it sounds.
As muscular strength and fitness improve, physical activities may become less demanding.
Someone who previously struggled to carry shopping bags or walk upstairs may find those activities easier after a period of regular training.
Physical activity can also support sleep quality and mental wellbeing.
However, strength training does not guarantee that someone will feel more energetic every day.
Poor sleep, inadequate nutrition, excessive training and underlying medical conditions can all contribute to fatigue.
Training that is too intense without sufficient recovery may actually leave a person feeling more tired.
The goal should therefore be sustainable improvement rather than constantly lifting the heaviest possible weight.
5. What Research Says About Metabolism and Strength Training
Scientific studies have investigated whether resistance training increases the amount of energy the body uses while resting.
A systematic review and meta-analysis published in 2020 examined how different exercise programmes affected resting metabolic rate.
Researchers reported that resistance exercise was associated with an average increase of approximately 96 calories per day in resting metabolic rate compared with control groups.
However, the authors also identified substantial differences between studies and a high risk of bias.
This means the result should not be interpreted as a guaranteed increase for everyone who begins lifting weights.
A separate systematic review and meta-analysis published in November 2024 examined resistance training, muscle growth and glucose metabolism.
Drawing on 33 intervention studies, researchers investigated the relationship between resistance training, increases in muscle mass and improvements in glucose regulation.
The research reinforces an important point: resistance training can benefit metabolic health, but its effects are more complex than simply building bigger muscles to burn more calories.
The evidence supports several potential benefits of regular resistance training:
The most important benefit may not be the number of additional calories burned, but the improvement in overall physical health.
6. What New Zealand Health Authorities Recommend
For New Zealanders, the advice is straightforward.
Health New Zealand recommends that adults aim for at least 2.5 hours of moderate physical activity each week, together with muscle-strengthening activities on at least two days.
Moderate physical activity can include brisk walking, cycling or swimming.
Muscle-strengthening activities do not necessarily require a gym membership.
Examples include carrying shopping, climbing stairs, gardening, squats, push-ups and exercising with weights or resistance bands.
For older New Zealanders, physical activity recommendations also emphasise balance, flexibility and maintaining physical independence.
The key message is that cardiovascular exercise and strength training serve complementary purposes.
Walking is beneficial, but walking alone may not provide sufficient challenge to maintain strength across all major muscle groups.
Combining regular movement with appropriate resistance exercises can provide broader health benefits.
7. Do You Really Need to Lift Heavy Weights?
Not necessarily.
The phrase “lift heavier” can easily be misunderstood, particularly by beginners.
Strength training works by gradually challenging muscles beyond their usual demands. This is commonly called progressive overload.
Progress can come from increasing resistance, performing more repetitions, improving movement control or gradually increasing training volume.
A person does not need to lift the heaviest weight available to achieve meaningful health benefits.
For beginners, learning correct technique and building consistency are more important than chasing impressive numbers.
Exercises should be challenging but manageable, with appropriate recovery between sessions.
Anyone with significant medical conditions, injuries or mobility limitations should seek individual advice before beginning an intensive programme.
8. A Practical Starting Point for Busy People
For people working long hours, raising families or spending much of their day at a desk, the biggest obstacle is often finding time.
Fortunately, strength training can begin with simple exercises at home.
Chair Squats
These help strengthen the legs and support everyday movements such as standing up and climbing stairs.
Wall Push-Ups
These provide a beginner-friendly way to challenge the chest, shoulders and arms.
Resistance-Band Rows
These exercises work muscles in the upper back and arms.
Calf Raises
These help strengthen lower-leg muscles used in walking and everyday movement.
Two manageable strength sessions each week can be a reasonable starting point, alongside regular walking or other aerobic activities.
The exercises, repetitions and intensity should be adjusted to the individual’s fitness and health.
9. The Bigger Message: Think About Strength, Not Just the Weighing Scale
For many people, improving health begins with a familiar goal: losing weight.
But body weight alone does not tell the full story.
A person may improve strength, physical function and metabolic health without experiencing a dramatic change on the weighing scale.
Similarly, rapid weight loss without attention to muscle preservation may not produce the healthiest long-term outcome.
The more useful question may not be simply how much someone weighs, but how well their body functions.
Can they climb stairs comfortably?
Can they carry groceries without struggling?
Can they remain physically active as they grow older?
Can they maintain balance, mobility and independence?
These are meaningful measures of wellbeing.
Maintaining muscle strength can become increasingly important as people enter their 40s, 50s, 60s and beyond.
And the good news is that it is never too late to begin improving strength, provided exercises are appropriate for an individual’s health and abilities.
10. The Long-Term Value of Building Muscle
One of the most compelling reasons to include strength training in a healthy lifestyle is its potential contribution to long-term independence.
As populations age, maintaining physical function becomes an increasingly important public health priority.
Muscle weakness can make everyday activities more difficult and may contribute to reduced mobility.
Regular resistance training offers a practical way to help counter some age-related declines in muscular strength and function.
For younger adults, building good exercise habits early may help establish a stronger foundation for later life.
For middle-aged adults, maintaining muscle can support physical performance and metabolic health.
For older adults, appropriate strength and balance exercises can help preserve mobility and confidence.
The benefits are not limited to athletes or people who attend gyms.
They are relevant to anyone who wants to remain physically capable and independent for as long as possible.
The Webfit News Takeaway
The fitness video’s underlying message is worth paying attention to, even if its explanation of calorie burning is somewhat simplified.
Building and maintaining muscle is not merely a fitness trend. It is an important part of long-term health.
Strength training can support physical function, metabolic health, stronger bones and healthy ageing.
It does not require extreme workouts, expensive equipment or lifting dangerously heavy weights.
For many people, the most effective approach may be surprisingly simple: move regularly, strengthen muscles twice a week, progress gradually and remain consistent.
The real benefit of building muscle is not just how your body looks today.
It is what your body will still be capable of doing 10, 20 or even 30 years from now.
And that may be one of the most valuable investments anyone can make in their long-term wellbeing.
Sources and Research References
World Health Organization: Guidelines on Physical Activity and Sedentary Behaviour.
Health New Zealand: Physical Activity Recommendations for Adults and Older Adults.
New Zealand Ministry of Health: Eating and Activity Guidelines for New Zealand Adults.
2020 systematic review and meta-analysis examining exercise interventions and resting metabolic rate.
2024 systematic review and meta-analysis examining resistance training, muscle hypertrophy and glucose metabolism.
Disclaimer: This article is intended for general health education and awareness. It does not replace professional medical advice. Individuals with existing health conditions should consult an appropriate healthcare professional before beginning a new exercise programme.
© Webfit News | Wellbeing & Health | 9 October 2026
