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INCREASING PROTEIN INTAKE TO HELP OLDER ADULTS INCREASE MUSCLE STRENGTH AND FUNCTION: A PILOT, SINGLE-ARM INVESTIGATION USING COACHING AND A PER-MEAL PROTEIN PRESCRIPTION

S.S. Gropper, M. Exantus, K.L. Jackson, S.M. Spiers, E.R. Vieira, D. D’Avolio, A. Opalinski, R. Tappen

J Aging Res & Lifestyle 2020;9:9-13

Objective: To evaluate the effects of nutrition education, diet coaching, and a protein prescription (PP) on protein intake, and associations with muscle strength and function. Design: Prospective pretest posttest single-arm study. Setting: Urban area, East coast of South Florida. Participants: 20 white, non-Hispanic adults, aged 73.3 + 10.4 years. Intervention: 10-week telephone-based diet coaching, nutrition education and a per-meal PP. Measurements: Protein and energy intakes, weight, grip strength (GS), and 5-chair-rise (5CR), timed up and go (TUG), 3-meter walk (3mW) tests at baseline and 10 weeks. Results: Pre to 10-week post values significantly improved (p<0.05) for protein intake/kg body weight (0.8 + 0.3 to 1.2 + 0.3g), protein intake/meal (17.2 ± 4.8g to 26.4 ± 6.g), protein intake/100 kcal (3.74 + 1.16 to 5.97 + 0.98g), GS (22.4 to 23.4kg), and times for TUG (10 to 8sec), 3mW (4 to 3sec), and 5CR (13 to 11sec). Conclusions: Given the positive findings of this unique pilot investigation, additional studies, which include a larger more diverse group of participants and provide for control group(s), are needed to better investigate the effectiveness of this approach and its effects on muscle strength and function.

CITATION:
S.S. Gropper ; M. Exantus ; K.L. Jackson ; S.M. Spiers ; E.R. Vieira ; D. D’Avolio ; A. Opalinski ; R. Tappen (2020): Increasing Protein Intake to Help Older Adults Increase Muscle Strength and Function: A Pilot, Single-arm Investigation using Coaching and a Per-meal Protein Prescription. The Journal of Aging and Lifestyle (JARLife). http://dx.doi.org/10.14283/jarlife.2020.4

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