The latest fitness craze, weighted vests, are gaining traction, with celebrities like Oprah Winfrey and Hugh Jackman among their fans. These vests, designed to increase the body's workload during movement, are being worn by individuals for everything from household chores to running. The principle behind their use is simple: the added weight on the torso and shoulders forces the body to expend more energy and places greater demands on the heart and muscles, potentially improving cardiovascular fitness and building muscular strength and endurance.
Experts suggest that weighted vests may also offer benefits for bone health, potentially slowing age-related bone density decline. Professor Adam Taylor, an anatomist, notes their particular interest for women approaching perimenopause and menopause due to the increased load on bones, which could help maintain bone density amidst a rising risk of osteoporosis. He also highlights that weighted vests can increase the intensity of daily activities without requiring extra time for exercise, making them a safe and low-risk method for enhancing movement.
However, individuals with pre-existing back, hip, or knee issues are advised to start with lighter weights and gradually increase them to allow the body to adapt to the altered force distribution. Giuseppe Salustri, clinical director of The Physio Box, cautions that those with osteoarthritis, inflamed joints, or hip, knee, or ankle injuries should avoid weighted vests, as the added load could exacerbate symptoms. He also advises against running in a weighted vest and notes a lack of evidence for their effectiveness in improving posture or strengthening tendons.
For one individual, the month-long trial of a weighted vest began with skepticism. Initial measurements revealed a BMI of 28.1, a body fat percentage of 31.2kg, and elevated cholesterol levels. The decision was made to start with a 3kg vest, with a goal to gradually increase the weight, aiming for approximately five percent of body weight.
The vest, initially appearing cumbersome, proved to be surprisingly manageable once fitted. Worn during daily chores and eventually during walks, it became clear the vest was significantly raising the heart rate. Osteopath and fitness trainer James Davies explained that weighted vests are a tool to enhance existing training, not replace it, helping muscles and bones cope with increased stress.
As the trial progressed, the vest was increased to 5kg, then a 6kg model. While initial discomfort and a pre-existing shoulder issue required careful adjustment and gradual progression, the pain eventually subsided. This adjustment period emphasized the importance of proper fit and listening to the body's signals.
At the end of the four-week period, significant changes were observed. While only 2kg of weight was lost, muscle mass increased from 48kg to 50.6kg, and BMI dropped to 27.6. Fat mass and visceral fat also decreased. More notably, total cholesterol levels dropped to 5.28mmol/l, with LDL cholesterol at 3.01mmol/l. Biological age readings improved, showing results comparable to an average 53-year-old, and the individual experienced less breathlessness during physical exertion.
Experts attribute these improvements to the increased intensity of daily activities and workouts facilitated by the vest, contributing to better cardiovascular and muscular fitness. The vest's consistent engagement of muscles around the shoulder blades and upper back may have also contributed to the noted improvement in shoulder comfort.
The author concluded that the weighted vest offers an accessible and cost-effective way to increase strength and fitness, particularly for those with time constraints, provided the individual's health status allows for its use. The experience transformed skepticism into a recommendation for building exercise into the day.