Abstract The hypothesis that aging and regular physical activity could influence oxidative stress has been studied by comparing antioxidant activities (superoxide dismutase (SOD), glutathione peroxidase (GPX), reductase (GR), ascorbic acid α-Tocopherol) malondialdehyde level (MDA) in four groups: young sedentary (n=15; age: 20.3±2.8 years; YS), active (n=16; 21.4±1.9 YA), old 65.1±3.5 OS) (n=17; 67.2±4.8 OA). Antioxidant MDA were assessed at rest after an incremental exercise. There was no...

Purpose The aim of this study was to evaluate whether oxidative stress markers and biomarkers muscle injury would be affected by aging at rest in response an incremental exhaustive exercise. Methods Fifteen young (20.3±2.8 years) fifteen older adults (65.1±3.5 performed cycle ergometer test exhaustion. Before after exercise, [superoxide dismutase (SOD), glutathione peroxidase (GPX), reductase (GR), ascorbic acid, α-Tocopherol, malondialdehyde (MDA)] [creatine kinase (CK), lactate...

The aim of this study was to examine the effect running exercise modality on oxidative stress. Thirteen endurance athletes (age: 21.46 ± 0.66 years) performed three different modalities (Continuous (CR): continuous at 75% VO2max for 25 min; intermittent #1 (15/15): protocol, 15 s VO2max, passive recovery, 50 #2 (30/30): 30 min) in a randomized order. Blood samples were drawn rest and immediately after each assessed malondialdehyde (MDA), advanced oxidation protein products (AOPP), superoxide...

To assess the effect of beetroot juice (BET) on recovery kinetics physical performance, muscle damage and perceived soreness after simulated soccer match play in players.In a randomized, double-blind, crossover design, thirteen players completed Loughborough Intermittent Shuttle Test LIST. Players received either BET or placebo (PLA) (2*150) for 7 days (3 pre-exercise, day trial, 3 post-exercise). Physical performance (Squat jump: SJ, countermovement CMJ, maximal voluntary contraction: MVC,...

The aim of this study was to investigate how physical fitness level could affect antioxidant activity and malondialdehyde (MDA) at rest in response exhaustive exercise healthy older adults. Fifty adults (average age: 66.1 ± 3.8 years) were divided according their into an unfit group (UG) (n = 15), a low (LFG) 18), high (HFG) 17). Fitness status classified based on answers questionnaire about the previous 12 months. Before after incremental cycle ergometer test exhaustion, following markers...

This comparative study examined the effects of regular low intensity aerobic exercise on oxidative stress markers in older adults. The was carried out 15 sedentary subjects (age: 65.1 ± 3.5 years) versus 18 performing fitness exercises 65.8 3.3 years). Before and after an incremental test, were assessed. Superoxide dismutase higher at rest recovery for physically active compared with ( p < .05). At recovery, glutathione peroxidase α -Tocopherol increased significantly above resting values...

Graja, A, Kacem, M, Hammouda, O, Borji, R, Bouzid, MA, Souissi, N, and Rebai, H. Physical, biochemical, neuromuscular responses to repeated sprint exercise in eumenorrheic female handball players: effect of menstrual cycle phases. J Strength Cond Res 36(8): 2268-2276, 2022-Very few studies have been interested the relationship between ovarian hormones physiological function athletes. The aim this study was assess phases (MP) on physical, neuromuscular, biochemical after (RSE) players. Ten...

Small-sided games (SSGs) are a recommended training method for significant performance enhancement, and efficiency. The stop-ball (SSG-SB) effects on physical responses (e.g., acceleration, deceleration, sprints, total distance, indicator of workload) have not been investigated yet. This study aimed to investigate the SSG-SB compared small-goals SSG (SSG-SG) heart rate (HR) at high intensity (total distance (>18 km/h)), sprints km/h), acceleration deceleration (>3 m/s²) during 4 vs. format...

Objectives: Assessing the effects of Ramadan fasting on recovery following a soccer match simulation. Methods: Eight elite players (age: 21.0 ± 0.4 years) performed modified Loughborough Intermittent Shuttle Test protocol (LISTmod) two occasions: one week before (BR) and during fourth (End-R). At BR End-R, squat jump, countermovement maximal voluntary contraction, 20 meter sprint creatine kinase, uric acid subjective ratings (feelings scale, quality sleep, fatigue, muscle soreness stress)...

Objective: The aim of this study was to assess the effect intermittent vascular occlusion (IVO) on recovery following simulated soccer physical demand test in players.Methods: Twelve players completed Loughborough Intermittent Shuttle Test (LIST) two conditions placebo (PLA) and IVO followed by lower-limb occlusion. Physical performance (Squat jump: SJ, countermovement CMJ, maximal voluntary contraction: MVC, 20 m sprint: SP), muscle damage parameters (creatine kinase: CK, Lactate...

The present study aimed to investigate the effect of cold water immersion (CWI) on recovery neuromuscular fatigue following simulated soccer match-play. In a randomized design, twelve players completed 90-min match followed by either CWI or thermoneutral (TWI, sham condition). Before and after (immediately CWI/TWI through 72 h recovery), performance assessments were performed. Maximal voluntary contraction (MVC) twitch responses, delivered electrical femoral nerve stimulation, used assess...

Abstract The aim of the present study was to investigate existence a critical threshold beyond which peripheral fatigue would not further decrease during knee extensor (KE) exercise in older men, and consequences this mechanism on force‐duration relationship. Twelve old men (59 ± 2 years) randomly performed two different sessions, they 60 maximum voluntary contractions (MVC; 3s contraction, 2s relaxation). One trial unfatigued state (CTRL) one other following fatiguing neuromuscular...

The aim of the present study was to determine magnitude maximal level peripheral fatigue attainable (fatigue threshold) during an all-out intermittent isometric knee-extensor protocol in both younger (24 ± 1 yr, n = 12) and older (60 2 participants provide new insights into effects aging on neuromuscular function. Participants performed two experimental sessions, which they 60 voluntary contractions (MVCs; 3 s contraction, relaxation). One trial unfatigued state (CTRL) one other following...

Individuals with type 2 diabetes free from micro- and macrovascular complications have normal resting pulmonary function, but their V̇o 2peak is impaired due to poor skeletal muscle oxygenation during exercise. Tailoring exercise regimes for this population should prioritize interventions aimed at enhancing blood flow improvement.

The aim of the present study was to assess effect beetroot juice supplementation (BEET) on neuromuscular fatigue etiology during simulated soccer match play. In a randomized, double-blind, crossover design, 13 players completed Loughborough Intermittent Shuttle Test (LIST). Players received either BEET (2×150 mL; ∼8 mmol/L nitrate) or placebo (PLA) for 7 days (6 prior experimental session and day trial, 2 h before LIST). Neuromuscular assessments were performed at baseline, 45 min (half...

High-throughput screening in histology and analysis need a necessary automatic cell or nucleus counting. Current methods systems based on grayscale color images give results with counting errors. We suggest to use multispectral imaging (with more than three bands) rather one for A traditional acquisition chains uses source of white light CCD camera addition the optical microscope. To pass acquisition, we Programmable Light Source (PLS) place source. This PLS is capable generating different...

In soccer, accurate kicking skills are important determinants of successful performance. A kick must meet several criteria, including speed, accuracy, and timing. fact, players who able to the ball more accurately under various difficulties, such as time pressure, space constraints, opponent’s distance between point goal, have a clear advantage during soccer games. The aim present study was investigate effect exercise difficulty time-of-day on perceived task Accordingly, 32 boys (age: 11 ±...

Immunofluorescence is one of the most used techniques in optical fluorescence microscopy and has substantial applications biology pathology. It aims to detect localize or more proteins thanks use specific dyes. One major issues with immunofluorescence intrinsic fluorescence, called auto-fluorescence present some biological specimen. Several approaches, based on blind source deconvolution, are developed deal this problem isolate extrinsic from one. In paper, we two Independent Component...