Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
This study evaluates the protective role of oyster peptide (OP) on the occurrence of Exercise-Hypogonadal Male Condition. Male rats were given heavy-load swimming training and / or OP was supplemented for 6 consecutive weeks. After heavy-load training, sperm count, sperm viability and sperm motility in epididymis, testosterone in serum and testis, glutathione peroxidase (GSH-px) and androgen receptor (AR) in testis and mating times were remarkably decreased, malondialdehyde (MDA), capture latency and mating latency were significantly increased, mRNA expression of steroidogenic acute regulatory (StAR) and P450 cholesterol side-chain cleavage enzyme (P450scc) were obviously down-regulated, but serum follicle-stimulating hormone (FSH) and luteinising hormone (LH) were not statistically changed. Conversely, when OP was supplemented at heavy-load training, sperm count, sperm viability and sperm motility in epididymis, serum FSH, LH, testosterone, GSH-px, superoxide dismutase (SOD), testosterone, AR in testis and mating times were dramatically increased, while testicular MDA, capture latency and mating latency were significantly decreased, and mRNA expression of StAR, StARD7, P450scc and 3β-hydroxysteroid dehydrogenase (3β-HSD) were significantly up-regulated. In conclusion, heavy-load training causes testicular spermatogenic and steroidogenic disorders by enhancing the generation of reactive oxygen species (ROS), which can be protected by the co-administration of OP by enhancing the function of pituitary gonad axis and lowering ROS generation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/and.14005 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pushing limits: the acute effects of a heavy-load resistance protocol and supine exercise on fetal well-being.
BMJ Open Sport Exerc Med
September 2025
Department of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.
Objectives: To explore the acute effects of a heavy-load resistance protocol and exercise in the supine position on fetal heart rate (FHR) and uteroplacental blood flow.
Method: In this experimental laboratory study, 48 healthy pregnant athletes (elite: n=7; recreational: n=41) completed 3×8 repetitions with one repetition in reserve in sumo deadlift, bench press and incline bench press. FHR and umbilical and uterine artery pulsatility index (PI) were assessed before and after exercise.
Females Exhibit Greater Peak and Cumulative Patellofemoral Joint Stress With Moderate and Heavy Load Carriage Compared With Males.
Eur J Sport Sci
October 2025
Montana Center for Work Physiology and Exercise Metabolism, School of Integrative Physiology and Athletic Training, University of Montana, Missoula, Montana, USA.
Load carriage training is universal during military training, regardless of sex or physical characteristics, and may contribute to the 1.3-2.2× higher incidence of patellofemoral pain (PFP) in female versus male recruits.
View Article and Find Full Text PDFComparative Effects of Blood Flow Restriction and Traditional Strength Training on Proximal Shoulder Musculature: A Randomized Clinical Trial.
Muscles
August 2025
Departamento de Tecnologias de Diagnóstico e Terapêutica, Escola Superior de Tecnologias da Saúde do Tâmega e Sousa, Instituto Politécnico de Saúde do Norte (IPSN), Cooperativa de Ensino Superior Politécnico e Universitário, 4585-116 Gandra, Portugal.
Blood Flow Restriction (BFR) training may be an alternative when traditional heavy-load training is unsuitable. This study compared BFR with light loads to traditional strength training for shoulder muscle development proximal to the occlusion site; Methods: A total of 22 healthy adults were randomized into Group A: BFR training (30% 1RM; = 12) and Group B: Traditional strength training (70% 1RM; = 10). Four-week protocol (2 sessions/week) included shoulder abduction and lateral rotation, and dumbbell overhead press.
View Article and Find Full Text PDFOptimization of laser surface texturing for improving the tribological properties of anti-friction plates.
Rev Sci Instrum
July 2025
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China.
Effective reduction of friction and wear is an important issue that must be addressed in many engineering equipment applications. In this study, laser texturing technology was used to texture an SA508 Gr.3 Cl.
View Article and Find Full Text PDFOptimization of applied loads for assessing load-velocity relationship during back squat.
PLoS One
July 2025
Competitive Sports No.4 Room, Beijing Research Institute of Sports Science, Beijing, China.
Purpose: This study aimed to identify the lightest load to validate the load-velocity (L-V) relationship in the back squat using the modified multiple-point (a lower highest load compared to the standard method) and in-field two-point methods.
Methods: Following the measurement of back squat one-repetition maximum (1RM), twenty college amateur athletes performed a multi-point incremental loads test (20%, 40%, 60%, 70%, 80%, and 90% 1RM), and five two-point tests (20%&90%, 20%&80%, 20%&70%, 20%&60%, and 20%&40% 1RM). The mean velocity (MV) of each submaximal load was collected to model the individual L-V relationship.