Chronic Resistance Exercise Improves Functioning and Reduces Toll-Like Receptor Signaling in Elderly Patients With...

Area of Science:

• Gerontology
• Exercise Physiology
• Immunology

Background:

• Elderly patients often experience reduced mobility and physical decline post-surgery.
• This decline can lead to persistent functional limitations and prolonged recovery.
• Targeting inflammation and improving physical function are crucial for better postoperative outcomes in older adults.

Purpose of the Study:

• To compare the effectiveness of chronic resistance (CR) exercise versus chronic aerobic (CA) exercise.
• To evaluate the impact of these exercise programs on postoperative physical functioning in elderly patients.
• To assess the reduction of proinflammatory muscular Toll-like receptor (TLR)-associated signaling.

Main Methods:

• A prospective, randomized trial involving 66 elderly patients undergoing hip, femur, or pelvic fracture repair.
• Comparison of three exercise programs: CR, CA, and combined CR+CA.
• Primary outcomes included maximal oxygen intake, endurance, quadriceps size, and knee-extensor force; secondary outcomes measured TLR/NF-κB signaling markers.

Main Results:

• CR and CR+CA significantly improved three out of four physical performance parameters.
• Significant reductions in muscular TLR and nuclear factor kappa beta (NF-κB) signaling markers were observed.
• Serum levels of TLR4 ligands (heat shock protein 70 and serum amyloid A) also decreased significantly.

Conclusions:

• Three months of CR or CR+CA exercise effectively enhances maximal oxygen consumption, quadriceps size, and knee-extensor force.
• These exercise interventions lower muscular proinflammatory signaling in elderly adults experiencing postoperative deconditioning.
• Resistance and combined exercise are beneficial for improving physical function and reducing inflammation post-surgery.