Exercise After Weight Loss: GLP-1 Benefits for Fitness
- New evidence from trials shows that without structured exercise, weight loss drugs may leave physical fitness unchanged, highlighting that movement is key to true functional recovery.
- Study: Fitness with exercise and glucagon-like peptide-1 receptor agonist treatment alone or combined following diet-induced weight loss: a secondary analysis from a randomized controlled trial in adults with...
- In a recent study published in the journal Sports Medicine, a group of researchers evaluated how structured exercise and a glucagon-like peptide-1 receptor agonist (GLP-1 RA), alone or...
New evidence from trials shows that without structured exercise, weight loss drugs may leave physical fitness unchanged, highlighting that movement is key to true functional recovery.
Study: Fitness with exercise and glucagon-like peptide-1 receptor agonist treatment alone or combined following diet-induced weight loss: a secondary analysis from a randomized controlled trial in adults with obesity. Image Credit: Towfiqu ahamed barbhuiya/Shutterstock
In a recent study published in the journal Sports Medicine, a group of researchers evaluated how structured exercise and a glucagon-like peptide-1 receptor agonist (GLP-1 RA), alone or combined, influences fitness during long-term weight maintenance following diet-induced weight loss.
Obesity, fitness, and the limitations of weight loss alone
Table of Contents
More than 650 million adults worldwide live with obesity, a condition strongly linked to reduced mobility, poorer cardiorespiratory fitness, and diminished quality of life. Even after losing weight through medication or diet, individuals may still struggle with daily activities such as walking briskly or climbing stairs. This raises an critically important question: does weight loss alone lead to important improvements in physical fitness.
Currently, several medications are used to treat obesity, including GLP-1 RAs. Previous research suggests that a substantial proportion of weight loss during pharmacotherapy may consist of fat-free mass, raising concerns about long-term physical function and independence. Thus, it is indeed critically important to understand how structured exercise interacts with weight loss drugs to improve functional health, and not just reduce body weight.
Study design and participant selection
This exploratory secondary analysis was conducted within a randomized, placebo-controlled clinical trial.
Exercise Improves Physical function in Participants Taking Liraglutide
Combining exercise with the medication liraglutide led to greater improvements in physical and functional performance than liraglutide alone or a placebo, according to a study examining mobility and lower limb function.
Stair Climbing Performance
Participants in the combined exercise and liraglutide group completed a stair-climbing test significantly faster than those receiving liraglutide alone or a placebo, indicating substantial improvements in mobility and lower limb function. Exercise alone produced comparable improvements, while liraglutide alone did not improve stair-climbing performance despite sustained weight loss.
Cardiorespiratory Fitness Results
Cardiorespiratory fitness, assessed as peak VO2, also showed improvements. Further details regarding these results were not provided in the source material.