768-km Multi-Stage Ultra-Trail Case Study-Muscle Damage, Biochemical Alterations and Strength Loss on Lower Limbs

Lecina, Miguel ; Castellar, Carlos (Universidad de Zaragoza) ; Pradas, Francisco (Universidad de Zaragoza) ; López-Laval, Isaac (Universidad de Zaragoza)

Resumen: A series of case studies aimed to evaluate muscular fatigue in running a 768-km ultra-trail race in 11 days. Four non-professional athletes (four males) were enrolled. Muscle damage blood biomarkers (creatine kinase (CK), lactodeshydrogenase (LDH), aspartate transaminase (AST) and alanine aminotransferase (ALT) and lower limb strength were evaluated by using Bosco jumps test; squat jump (SJ), countermovement jump (CMJ) and Abalakov jump (ABA) were assessed before (pre), after the race (post) and for two and nine days during the recovery period (rec2 and rec9), respectively. Results showed: pre-post SJ = −28%, CMJ = −36% and ABA = −21%. Values returned to basal during rec9: SJ = −1%, CMJ = −2% or even exceeded pre-values ABA = +3%. On the contrary, muscle damage blood biomarkers values increased at post; CK = +888%, LDH = +172%, AST = +167% and ALT = +159% and the values returned gradually to baseline at rec9 except for AST = +226% and ALT = +103% which remained higher. Nonparametric bivariate Spearman’s test showed strong correlations (Rs ≥ 0.8) between some jumps and muscle damage biomarkers at post (SJ-LDH Rs = 0.80, SJ-AST Rs = 0.8, ABA-LD H Rs = 0.80 and ABA-AST Rs = 0.80), at rec2 (SJ-CK Rs = 0.80 and SJ-ALT Rs = 0.80) and even during rec9 (ABA-CK). Similarly, some parameters such as accumulated elevation and training volume showed a strong correlation with LDH values after finishing the ultra-trail race. The alteration induced by completing an ultra-trail event in the muscle affects lower limb strength and may in some circumstances result in serious medical conditions including post- exertional rhabdomyolysis.

Idioma: Inglés

DOI: 10.3390/ijerph19020876

Año: 2022

Publicado en: International journal of environmental research and public health 19, 2 (2022), 876
ISSN: 1661-7827

Factor impacto CITESCORE: 5.4 - Medicine (Q2) - Environmental Science (Q2)

Factor impacto SCIMAGO: 0.828 - Health, Toxicology and Mutagenesis (Q2) - Public Health, Environmental and Occupational Health (Q2) - Pollution (Q2)

Financiación: info:eu-repo/grantAgreement/ES/DGA/S53-17D

Tipo y forma: Article (Published version)

Área (Departamento): Área Didáctica Expres.Corporal (Dpto. Expres.Music.Plást.Corp.)
Área (Departamento): Área Educación Física y Depor. (Dpto. Fisiatría y Enfermería)