Impact of Nutritional Therapy on Geriatric Rehabilitation Outcomes in Older Adults

Introduction: Geriatric rehabilitation presents unique challenges with older adults exhibiting complex medical conditions, functional limitations, and nutritional vulnerabilities. Despite evidence linking nutritional status to rehabilitation outcomes, standardized nutritional protocols tailored to the rehabilitative needs of older adults remain underutilized. Malnutrition, sarcopenia, and inadequate protein intake significantly impede functional recovery, yet are frequently overlooked in standard rehabilitation approaches.

Aim: This quality improvement project evaluated the effectiveness of a comprehensive nutritional therapy program on functional outcomes, length of stay, and rehospitalization rates in older adults undergoing inpatient rehabilitation following acute hospitalization.

Methodology: A prospective intervention study was conducted with 72 older adults (mean age 77.4 years) admitted to inpatient rehabilitation following orthopedic surgery, stroke, or deconditioning. The intervention group (n=38) received enhanced nutritional therapy including high-protein supplementation (1.2-1.5g/kg/day), micronutrient optimization, and coordinated nutrition-exercise timing. The control group (n=34) received standard care. The protocol incorporated regular nutritional assessment, individualized meal planning, and education addressing rehabilitation-specific nutritional needs. Primary outcomes included functional independence measures (FIM), length of stay, and 30-day rehospitalization rates.

Results: The intervention group demonstrated significantly greater improvements in FIM scores compared to controls (mean increase 32.6 vs. 23.8 points, p<0.001). Median length of stay decreased by 3.2 days in the intervention group (p=0.002). Thirty-day rehospitalization rates were substantially lower in the intervention group (8% vs. 24%, p=0.001). Nutritional parameters improved significantly, with 78% of intervention participants achieving protein targets compared to 31% of controls. Hand grip strength increased by 18% in the intervention group versus 7% in controls (p<0.01).

Conclusion: Structured nutritional therapy significantly enhanced rehabilitation outcomes in older adults. Results demonstrate that targeted nutritional interventions supporting increased protein intake and optimized nutrition-exercise coordination should be integrated into standard geriatric rehabilitation protocols. This approach represents a feasible, cost-effective strategy to improve functional recovery and reduce healthcare utilization in this vulnerable population.