Christelle Jaffre

Dr. Christelle Jaffre


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 June 2021 in Life
Verified
Journal Article
Open access
PDF file
CCCarole Castanier
Carole Castanier
VBValérie Bougault
Valérie Bougault
CTCaroline Teulier
Caroline Teulier
CJChristelle Jaffre
Christelle Jaffre
SSSandrine Schiano-Lomoriello
Sandrine Schiano-Lomoriello
KCKatia Collomp
Katia Collomp
Female athletes have garnered considerable attention in the last few years as more and more women participate in sports events. However, despite the well-known repercussions of female sex hormones, few studies have investigated the specificities of elite female athletes. In this review, we present the current but still limited data on how normal menstrual phases, altered menstrual phases, and hormonal contraception affect both physical and cognitive performances in these elite athletes. To examine the implicated mechanisms, as well as the potential performances and health risks in this population, we then take a broader multidisciplinary approach and report on the causal/reciprocal relationships between hormonal status and mental and physical health in young (18–40 years) healthy females, both trained and untrained. We thus cover the research on both physiological and psychological variables, as well as on the Athlete Biological Passport used for anti-doping purposes. We consider the fairly frequent discrepancies and summarize the current knowledge in this new field of interest. Last, we conclude with some practical guidelines for eliciting improvements in physical and cognitive performance while minimizing the health risks for female athletes.

2 August 2021 in Life
Verified
Journal Article
Open access
PDF file
RWRkia WAZZANI
Rkia WAZZANI
SPStéphane Pallu
Stéphane Pallu
CBCeline A. Bourzac
Celine A. Bourzac
SASaid Ahmaidi
Said Ahmaidi
Hugues PortierHugues Portier
Hugues Portier
CJChristelle Jaffre
Christelle Jaffre
Physical activity is widely recognized as a biotherapy by WHO in the fight and prevention of bone diseases such as osteoporosis. It reduces the risk of disabling fractures associated with many comorbidities, and whose repair is a major public health and economic issue. Bone tissue is a dynamic supportive tissue that reshapes itself according to the mechanical stresses to which it is exposed. Physical exercise is recognized as a key factor for bone health. However, the effects of exercise on bone quality depend on exercise protocols, duration, intensity, and frequency. Today, the effects of different exercise modalities on capillary bone vascularization, bone blood flow, and bone angiogenesis remain poorly understood and unclear. As vascularization is an integral part of bone repair process, the analysis of the preventive and/or curative effects of physical exercise is currently very undeveloped. Angiogenesis–osteogenesis coupling may constitute a new way for understanding the role of physical activity, especially in fracturing or in the integration of bone biomaterials. Thus, this review aimed to clarify the link between physical activities, vascularization, and bone repair.

10 September 2023 in European Journal of Applied Physiology
Verified
Journal Article
Closed access
PDF file
RWRkia Wazzani
Rkia Wazzani
CBCeline A. Bourzac
Celine A. Bourzac
HEHanane Elhafci
Hanane Elhafci
PGPhilippe Germain
Philippe Germain
SASaid Ahmaidi
Said Ahmaidi
Hugues PortierHugues Portier
Hugues Portier