Dataset Information

Muscle Strength of Lower Limbs as a Postoperative Predictor in Bariatric Surgery.

ABSTRACT:

Objective

The aim of our study was to assess postoperative lower limbs muscle strength (MS) as a predictor of late surgical success (36 months).

Methods

Body composition analyses and isokinetic dynamometry evaluation were performed before (T0: n=123), six months (T1: n=123) and 36 months (T2: n=79) after Roux-en-y gastric bypass (RYGB). Surgical success (SS) was defined as ≥ 50% excess weight loss (EWL) 36 months after surgery or ≤ 50% surgical failure (SF).

Results

There was no difference between relative MS extension (Ext) and flexion (Flex) in T1 and T2. There was also, no difference between relative MS Ext and Flex in T1 and T2 between patients with SS and SF. There was a difference in relative MS Ext (144.9 ± 39.8 Nm/kg x 125.5 ± 29.2 Nm/kg; p=0.04) and Flex (73.6 ± 21.8 Nm/kg x 60.4 ± 15.8 Nm/kg; p=0.02) between SS and SF patients only in T2. Patients with an increment in Ext and Flex MS ≥4 Nm/kg at T1 had approximately 76% of SS at 36 months.

Conclusion

An increase of lower limbs MS ≥4 Nm/kg 6 months after RYGB predicts SS at 36 months.

Clinicaltrials

gov ID: NCT04129801.

SUBMITTER: Gadducci AV

PROVIDER: S-EPMC10910205 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Muscle Strength of Lower Limbs as a Postoperative Predictor in Bariatric Surgery.

Gadducci Alexandre Vieira AV de Cleva Roberto R Cardia Lilian L Estabile Priscila P Silva Paulo Roberto Santos PRS Greve Julia Maria D'Andréa JMD Santo Marco Aurélio MA

Journal of musculoskeletal & neuronal interactions 20240301 1

<h4>Objective</h4>The aim of our study was to assess postoperative lower limbs muscle strength (MS) as a predictor of late surgical success (36 months).<h4>Methods</h4>Body composition analyses and isokinetic dynamometry evaluation were performed before (T0: n=123), six months (T1: n=123) and 36 months (T2: n=79) after Roux-en-y gastric bypass (RYGB). Surgical success (SS) was defined as ≥ 50% excess weight loss (EWL) 36 months after surgery or ≤ 50% surgical failure (SF).<h4>Results</h4>There w ...[more]

PMID: 38427366

Similar Datasets

Project description:BackgroundTo propose cut-off points for older adults' weakness for upper and lower limbs muscle strength normalized by body size with the ratio standard/muscle quality and allometric scaling.MethodsNinety-four community-dwelling older adults (69.1% women) were assessed for 49 body-size variables (anthropometry, body composition and body indexes), handgrip strength (HGS), one maximum repetition measurement for knee extensors (1RM), isokinetic knee extension peak torque at 60°/s (PT), and six-minute walk test (6MWT). Ratio standard or muscle quality (muscle strength/body size) and allometric scaling (muscle strength/body sizeb; when b is the allometric exponent) were applied for body-size variables significantly correlated with HGS, 1RM and PT. Cut-off points were computed according to sex based on mobility limitation (6MWT < 400 m) with ROC curve and Youden index.ResultsAbsolute HGS, 1RM and PT cut-off points were not adequate because they were associated with body size (r > 0.30). But it was corrected with muscle strength normalization according to body size-variables: HGS (n = 1); 1RM (n = 24) and PT (n = 24). The best cut-off points, with the highest area under the curve (AUC), were found after normalization for men: HGS/forearm circumference (1.33 kg/cm, AUC = 0.74), 1RM/triceps skinfold (4.22 kg/mm, AUC = 0.81), and PT/body mass*height0.43 (13.0 Nm/kg*m0.43, AUC = 0.94); and for women: HGS/forearm circumference (1.04 kg/cm, AUC = 0.70), 1RM/body mass (0.54 kg/kg, AUC = 0.76); and PT/body mass0.72 (3.14 Nm/kg0.72; AUC = 0.82).ConclusionsUpper and lower limbs muscle weakness cut-off points standardized according to body size were proposed for older adults of both sexes. Normalization removes the effect of extreme body size on muscle strength (both sexes) and improves the accuracy to identify weakness at population level (for women, but not in men), reducing the risk of false-negative/positive cases.

Dataset Information

Muscle Strength of Lower Limbs as a Postoperative Predictor in Bariatric Surgery.

Objective

Methods

Results

Conclusion

Clinicaltrials

Publications

Muscle Strength of Lower Limbs as a Postoperative Predictor in Bariatric Surgery.

Similar Datasets

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