Résumé :
Introduction. Although RIF is not recommended in patients with CHB, several patients insist to fast during Ramadan. The impacts of RIF on muscular capacity of patients with CHB have not been evaluated. Aim. To evaluate the impacts of RIF on muscle mass and maximal isometric contraction of patients with CHB but free from cirrhosis.
Methods. This was an experimental study performed during the 2021 Ramadan. Patients were Tunisian male adults followed for an untreated CHB (n=13). The following data were collected before-(BR), during-(DR) and after-(AR) Ramadan: weight, body mass index (BMI), muscle mass, body fat, body water percentage, handgrip strength, and back and leg muscle strength.
Results. This table exposes the data of patients during the three sessions.
| BR | DR | AR | p-value | |
| Weight (kg) | 81.4±12.48 | 80.5±13.0 | 80.0±12.8& | 0.004 |
| BMI (kg/m2) | 25.9±3.9 | 25.6±4.1 | 25.2±3.3& | 0.001 |
| Muscle mass (kg) | 40.1±2.6# | 38.7±2.7¥ | 39.1±2.3 | 0.001 |
| Body fat (kg) | 22.3±5.4# | 23.8±6.0 | 22.8±4.7 | 0.001 |
| Body water (%) | 53.3±3.7# | 52.4±4.1¥ | 53.1±3.3 | 0.001 |
| Handgrip strength (kg) | 49.5±8.2 | 49.5±6.6 | 48.7±7.1 | NS |
| Back and leg muscle strength (kg) | 133.9±26.4 | 124.3±16.8 | 140.5±34.1 | NS |
| NS: not-significant. p-value: ANOVA. #: BR vs. DR; &: BR vs. AR; ¥: DR vs. AR |
Discussion/Conclusion. Despite the changes due to RIF on body composition including muscle mass, which can be explicated by the deprivation of food and water during the day, no change in maximal muscle capacity was observed. The RIF did not affect the isometric contraction of the skeletal muscle. This assumes that RIF has no impact on the energy process during isometric voluntary contraction in viral liver damage.
Mots clés : Ramadan intermittent fasting (RIF); Chronic liver diseases; Isometric muscle strength; Maximal voluntary contraction.
Auteurs : Jihène BERGAOUI , Helmi BEN SAAD, Jihène BEN ABDALLAH , Imed LATIRI
Mail de la personne à contacter pour questions : jihenebergaoui@hotmail.fr