In a surprising revelation, new research indicates that strength training is a highly effective method for improving sleep quality, notably among older adults. The study, conducted in March 2025, analyzed data from 25 randomized trials involving 2,170 participants aged 60 or older. The findings suggest that strength training surpasses aerobic exercise adn combination exercises in its positive impact on sleep.

The research focused on the effects of physical exercise on the Pittsburgh Sleep Quality Index (PSQI), a widely recognized questionnaire used to evaluate sleep quality over a one-month period. The PSQI provides a standardized measure of sleep quality and disturbances, making it a valuable tool in sleep research. The study revealed that strength training led to a notable advancement in sleep scores, highlighting its potential as a therapeutic intervention for sleep-related issues.

Strength training, defined as “exercises that increase muscle strength by making muscles work against a weight or force and using anaerobic metabolism, such as lifting weights, arm curls, wall push-ups and resistance,” emerged as the most effective form of exercise for enhancing sleep quality. The study indicated that strength training raised sleep scores by 5.75 points, a meaningful margin compared to other forms of exercise.

In comparison, aerobic exercise, including activities like running, jogging, cycling, dancing, hiking, swimming, gardening, and brisk walking, improved sleep scores by 3.76 points. Combination exercise, which incorporates a mix of aerobic, strengthening, balance, and adaptability exercises, only boosted scores by 2.54 points. This stark contrast underscores the unique benefits of strength training for sleep enhancement.

The researchers concluded,”Exercise that strengthens muscles,rather than aerobic or combination exercises,is the most effective way to enhance sleep quality.” This finding challenges conventional wisdom, which often emphasizes aerobic exercise for overall health and well-being.

“Exercise that strengthens muscles, rather than aerobic or combination exercises, is the most effective way to enhance sleep quality.”

Sleep quality is known to decline with age, making this research particularly relevant for older adults. Statistics show that between 30% and 48% of seniors report experiencing sleepiness, while 12% to 20% suffer from insomnia. These figures highlight the widespread prevalence of sleep disturbances among older adults and the need for effective interventions.

Lorna Kleidman, a certified personal trainer and founder of LornaFit in New York, who was not involved in the study, supports the findings. “I’ve seen it firsthand with my midlife female clients, who previously had trouble sleeping because of hormonal changes,” Kleidman told Fox news Digital.

Kleidman elaborated on the mechanisms behind the benefits of strength training for sleep: “Resistance training improves insomnia because it helps regulate the circadian rhythm, the sleep/wake cycle. Sleep quality is enhanced by reducing stress hormones and promoting the release of fatigue-inducing adenosine.” She added that the physical exertion helps the body naturally wind down, leading to deeper, more restorative sleep.

“Resistance training improves insomnia because it helps regulate the circadian rhythm.”

Regis Pagett, a certified personal trainer and the founder and owner of R Personal Fitness in New York City, also not involved in the study, concurred that a 30-minute moderate-intensity strength training workout can lead to improved sleep that same night. “Strength training on a regular basis requires your body to need higher quality rest in order to recover,” Pagett told Fox News Digital.

Pagett highlighted additional benefits, stating, “It helps you to regulate your body temperature, have a better resting heart rate, and lower your blood pressure, all of which are conducive to sleep.” These physiological changes contribute to a more relaxed state, making it easier to fall asleep and stay asleep throughout the night.

The study’s findings and expert opinions suggest that incorporating strength training into a regular exercise routine can be a valuable strategy for improving sleep quality, particularly for older adults. By strengthening muscles and regulating the body’s natural sleep-wake cycle, strength training offers a promising solution for those seeking a better night’s rest.