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Postacute Sarcopenia: Supplementation With β-hydroxyMethylbutyrate After Resistance Training

The PSSMAR Study (Postacute Sarcopenia, Supplementation With β-hydroxyMethylbutyrate After Resistance Training)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02679742
Acronym
PSSMAR
Enrollment
32
Registered
2016-02-10
Start date
2017-03-01
Completion date
2021-02-06
Last updated
2021-02-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sarcopenia

Keywords

beta hydroxy beta methylbutyrate, older people, muscle mass, muscle strength, post-acute

Brief summary

A randomized, double-blind, placebo-controlled, parallel study to assess the effects of β-hydroxymethylbutyrate (β-HMB) combined with a resistance training program, after an acute process in older patients with sarcopenia in terms of muscle mass, muscle strength and physical performance. Treatments compared will be β-hydroxymethylbutyrate (β-HMB) with a resistance training program or placebo with a resistance training program.

Detailed description

Sarcopenia is a geriatric syndrome characterized by the loss of skeletal muscle mass and strength that occurs with advancing age; it is related to frailty, falls, worsening quality of life, and death in chronic and elderly patients. Diagnosis of sarcopenia is based on clinical criteria: presence of low muscle mass and the presence of low muscle function and/or low physical performance. The latest developments indicate that dietary supplementation combined with resistance exercise could be an option to improve muscle mass and function. The objective of the study is to assess the effects of β-hydroxymethylbutyrate (β-HMB) combined with a resistance training program, after an acute process in older patients with sarcopenia in terms of muscle mass, muscle strength and physical performance. Design: A randomized, double-blind, placebo-controlled, parallel study with two intervention groups. The investigators shall compare placebo against an intervention with β-HMB in patients performing a resistance training program after an acute process (post-acute period) during 12 weeks. There will be 16 patients in each arm of the study. Additionally a one year follow up visit will be performed.

Interventions

DIETARY_SUPPLEMENTβ-hydroxymethylbutyrate

β-hydroxymethylbutyrate 3 grams once a day combined with a resistance training program (3 progressive resistance training sessions per week) during 12 weeks

DIETARY_SUPPLEMENTPlacebo

Maltodextrin 3 grams once a day combined with a resistance training program (3 progressive resistance training sessions per week) during 12 weeks

Sponsors

Parc de Salut Mar
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* male or female ≥60 years old * sarcopenia diagnosis and case-finding criteria following European Working Group On Sarcopenia in Older People (EWGSOP) * being discharged from post-acute care geriatric unit for rehabilitation treatment * ambulatory prior to the recent acute process * cognitive situation that let them to understand and follow an active physical rehabilitation program (Mini-Mental Status Examination ≥21/30) * voluntary participation and being able and willing to provide an informed consent

Exclusion criteria

* potential participants will be excluded if they have active malignancy (exception basal or squamous cell skin carcinoma or carcinoma in situ of the uterine cervix) * major lower limb surgery over the past 6 months (knee or hip arthroplasty) * contraindication for resistance training * performed regular exercise in the last 6 months * use of any medications interfering with the nutritional intervention * serious clinical conditions that compromises and endanger the patient's life * contraindication, intolerance or allergy to β-hydroxymethylbutyrate

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline handgrip strength at 12 weeksFrom baseline till 12 weeksHandgrip strength will be measured by a hand-held dynamometer (JAMAR®, Nottinghamshire, UK) and expressed in Kg
Change from baseline physical performance-gait speed- at 12 weeksFrom baseline till 12 weeksPhysical performance will be assessed with gait speed in the 4-m walk test
Change from baseline physical performance-SPPB- at 12 weeksFrom baseline till 12 weeksPhysical performance will be assessed with gait speed in short physical performance battery

Secondary

MeasureTime frameDescription
Absolute functional gain in 12 weeksFrom baseline till 12 weeksAbsolute functional gain measured with Barthel scale
Change from baseline rehabilitation impact indices at 12 weeksFrom baseline till 12 weeksRehabilitation Efficiency Index
Relative functional gain in 12 weeksFrom baseline till 12 weeksRelative functional gain measured with Barthel scale
Change from baseline lean and fat body mass (muscle mass) at 12 weeksFrom baseline till 12 weeksLean and fat body mass will be measured by electrical impedance measured in kg and expressed as normal, low or high values according to normality values for the European population
Number of adverse eventsFrom baseline till 12 weeksAdverse events will be collected by medical interview during the study
Number of hospital readmissionsFrom baseline till 12 weeksAdmissions in acute care due to medical health issues
Change from baseline functional status at 12 weeksFrom baseline till 12 weeksFunctional status assessed by the Barthel index

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026