Eccentric Exercise Builds Muscle Strength With Half The Effort
Finn's Take· TL;DR- Eccentric exercises—movements where muscles lengthen under tension, like lowering weights—generate 20% more force while using less energy than traditional lifting.
- Five minutes daily of no-equipment eccentric moves like chair squats and heel drops significantly improve strength and fitness across ages and abilities.
- Eccentric training works especially well for older adults and those with health conditions since it strains the heart and lungs less than conventional exercise.
The Science Behind Doing Less and Getting More
A new study published in the Journal of Sport and Health Science is challenging the fitness industry's most persistent myth: that effective exercise must be exhausting and painful. Sports scientist Ken Nosaka at Edith Cowan University in Australia argues that a technique called eccentric exercise deserves a greater role in everyday fitness, creating more force on a muscle while using less energy .
Eccentric exercise is when muscles work as they lengthen, usually during the 'lowering' part of the movement such as lowering a dumbbell, walking downstairs or slowly sitting down in a chair. The study showed muscles generate more force during these movements - while using less energy than they would by lifting or pulling an object and walking upstairs .
Research into muscle biomechanics has shown that muscles may be capable of generating significantly more force — more than 20%, according to Nosaka — than during concentric or isometric contractions, while requiring less metabolic energy .
Practical Applications for Real People
While eccentric exercise can be part of a gym routine, it actually requires no equipment. Walking down the stairs or squatting can be done at home, making it an accessible and effective option . Research shows that just five minutes a day of these movements can lead to meaningful improvements in strength and overall health .
For beginners interested in starting eccentric training, Nosaka recommends just a handful of body weight exercises: Chair squats — a partial squat that emphasizes the lowering phase rather than the upward push. Nosaka recommends slowly counting to five during the descent. Wall push-ups — a less strenuous version of the traditional push-up that emphasizes slowly lowering the body toward the wall. Heel drops — the reverse of a standing calf raise, in which the heels are slowly lowered below the level of a step or platform .
One 2017 study involving 30 elderly and obese women, who were assigned a routine of regularly walking upstairs or downstairs for 12 weeks. Those on the downstairs plan – the eccentric exercise – ended up with bigger improvements in heart rate, blood pressure, and other markers of fitness .
Breaking Down Exercise Barriers
"The idea that exercise must be exhausting or painful is holding people back," says Nosaka. "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!"
Eccentric exercise can work for older adults, people who spend a lot of time sitting down, and individuals with restrictive health conditions, Nosaka argues – sections of the population who traditionally struggle with standard exercises . Because eccentric exercise puts less strain on the heart and lungs, it is especially well suited for older adults and people with chronic health conditions .
Traditionally, eccentric exercises have been limited in workouts because they tend to make muscles particularly sore if you're not used to them. The technical term is delayed onset muscle soreness (DOMS), and it can quickly put people off this approach. Nosaka suggests that DOMS is triggered by muscle inflammation rather than solely by muscle fiber damage, and that it can be largely minimized by gradually increasing workout intensity and repeating the same exercises over time .
The Future of Fitness
"These movements mirror what we already do in daily life. That makes them practical, realistic and easier to stick with," Professor Nosaka said. "When exercise feels achievable, people keep doing it." This research suggests that sustainable fitness doesn't require grueling gym sessions or expensive equipment.
As our understanding of muscle physiology evolves, the fitness industry may need to reconsider its emphasis on intensity over efficiency. Nosaka has published more than 310 peer-reviewed journal articles; his current h-index is 61 (Scopus), and about 80% of his articles are related to "eccentric exercise." His research has been internationally recognised, and he is considered as a world leader in the area of eccentric exercise research . His work points toward a future where exercise becomes more accessible to everyone, regardless of age, fitness level, or time constraints.