People with a high body mass index (BMI) risk becoming physically weaker over the years compared to their slimmer peers. This is supported by new research from scientists at the University of Oslo in Norway.
For over 20 years, the team monitored a large cohort of women and men aged 45 and older. The results were concerning: study participants with excess weight lost strength significantly faster than those with a normal BMI.
What the Researchers Discovered
Initially, the scientists measured BMI and waist circumference in 2,340 women and 2,169 men aged 45 and older. Then, throughout the study period, they tracked changes in the participants’ physical condition, as reported by the Independent.
Interestingly, the team initially focused on older adults with underweight issues. They believed this group was at the highest risk for potential physical weakness and increased vulnerability to various health hazards.
However, experts also found substantial evidence within the cohort that a clear link exists between obesity and physical weakness.
The study, published in the journal BMJ Open, defined physical weakness as the presence of several key symptoms, including poor grip strength, slow walking speed, and exhaustion. It’s no surprise that individuals with excess weight exhibited low levels of physical activity.
The researchers discovered that participants with what is termed “central obesity” were significantly more likely to be weaker compared to those with a normal BMI. This is primarily due to the fact that, as people age, excess weight negatively impacts muscle strength and overall physical capabilities.
Moreover, obesity is closely associated with metabolic disorders, inflammatory processes, and many other symptoms that are inherent companions of aging and contribute to physical weakness.
The researchers emphasized the importance of maintaining an optimal BMI and waist circumference, regardless of age. This is crucial for preserving physical strength in later years, leading to a healthier, higher-quality, and longer life.