Repeated-sprint sets test: a new method for evaluating and forecasting fitness in elite young male soccer players.

The objective of the current study was to explore the correlation between repeated sprint sets (RSS) ability and several physical attributes, including maximum sprint speed, maximal aerobic speed, maximal anaerobic speed, aerobic capacity, and explosive strength. Moreover, the aim was to assess the suitability of RSS as a comprehensive evaluation tool for physical qualities and to determine which physical field tests most accurately predict RSS in elite young male soccer players. A total of thirty-two young elite male soccer players (mean age 14.

An eight-weeks resistance training programme with elastic band increases some performance-related parameters in pubertal male volleyball players.

The main aim was to evaluate the changes in dynamic, reactive, and power strength, and balance (as volleyball performance-related parameters) in pubertal volleyball players when a part of their normal inseason training regimen was replaced by an elastic band training (EBT). 27 male elite volleyball players were randomly allocated to intervention (N = 14; 14.86 ± 0.

Acute Effects of Different Plyometric and Strength Exercises on Balance Performance in Youth Weightlifters.

High-intensity muscle actions have the potential to temporarily improve the performance which has been denoted as postactivation performance enhancement. This study determined the acute effects of different stretch-shortening (fast vs. low) and strength (dynamic vs.

Introducing a Navigation Algorithm for Reducing the Spread of Diseases in Public Transport Networks.

Reducing passenger flow through highly frequented bottlenecks in public transportation networks is a well-known urban planning problem. This issue has become even more relevant since the outbreak of the SARS-CoV-2 pandemic and the necessity for minimum distances between passengers. We propose an approach that allows to dynamically navigate passengers around dangerously crowded stations to better distribute the passenger load across an entire urban public transport network.

Listening to Preferred Music Improved Running Performance without Changing the Pacing Pattern during a 6 Minute Run Test with Young Male Adults.

Several studies have investigated the effects of music on both submaximal and maximal exercise performance at a constant work-rate. However, there is a lack of research that has examined the effects of music on the pacing strategy during self-paced exercise. The aim of this study was to examine the effects of preferred music on performance and pacing during a 6 min run test (6-MSPRT) in young male adults.

Normative Data and Physical Determinants of Multiple Sprint Sets in Young Soccer Players Aged 11-18 Years: Effect of Maturity Status.

Selmi, MA, Sassi, RH, Yahmed, MH, Giannini, S, Perroni, F, and Elloumi, M. Normative data and physical determinants of multiple sprint sets in young soccer players aged 11-18 years: Effect of maturity status. J Strength Cond Res 34(2): 506-515, 2020-The aims of the study were: (a) to establish normative data for repeated-sprint sets (RSS) test based on the maturity status (age at peak height velocity [PHV]) and (2) to investigate the relationship between anthropometrical variables (stature, sitting height, body mass, and body fat percentage), RSS (2 × 5 × 20 m with 15-second recovery between sprints and 1-minute recovery between sets), and fitness tests {squat jump, countermovement jump, standing long jump, standing triple jump, 5-jump test, and 20-m shuttle run (multistage shuttle run test [MSRT])}.

Maturity Status as a Determinant of the Relationships Between Conditioning Qualities and Preplanned Agility in Young Handball Athletes.

Hammami, R, Sekulic, D, Selmi, MA, Fadhloun, M, Spasic, M, Uljevic, O, and Chaouachi, A. Maturity status as a determinant of the relationships between conditioning qualities and preplanned agility in young handball athletes. J Strength Cond Res 32(8): 2302-2313, 2018-Studies performed thus far have not accounted for the potential influence of maturity on determinants of preplanned agility.

Does Maturity Status Affect the Relationship Between Anaerobic Speed Reserve and Multiple Sprint Sets Performance in Young Soccer Players?

Selmi, MA, Al-Haddabi, B, Yahmed, MH, and Sassi, RH. Does maturity status affect the relationship between anaerobic speed reserve and multiple sprints sets performance in young soccer players? J Strength Cond Res 34(12): 3600-3606, 2020-The purpose of this study is to examine the relationship between repeated-sprint sets (RSS) performance indices and anaerobic speed reserve (ASR) in young soccer players of different maturity status. One hundred seventy-nine young male soccer players (11.

Relationship Between Repeated Sprint Performance and both Aerobic and Anaerobic Fitness.

The aims of this study were firstly, to examine the relationship between repeated sprint performance indices and anaerobic speed reserve (AnSR), aerobic fitness and anaerobic power and secondly, to identify the best predictors of sprinting ability among these parameters. Twenty nine subjects (age: 22.5 ± 1.

Physiological Responses and Performance Analysis Difference between Official and Simulated Karate Combat Conditions.

Purpose: This study aimed to compare physiological responses and time-motion analysis between official and simulated karate combat.

Methods: Ten high-level karatekas participated in this study, which included official and simulated karate combat.

Results: Karatekas used more upper-limb attack techniques during official combat compared to simulated ones (6±3 vs 3±1; P=0.

Primary testicular non-Hodgkin lymphoma. a 10-year Tunisian single-institute experience.

Background: Primary testicular non-Hodgkin lymphoma (NHL) is an uncommon extra nodal presentation, accounting for 1% of all NHL and 1 to 9% of testicular neoplasms. Median age at time of presentation is 60 years old. Anthracycline based chemotherapies are most frequently used.

Time-motion analysis and physiological responses to karate official combat sessions: is there a difference between winners and defeated karatekas?

Purpose: The aim of this study was to measure and compare physiological and time-motion variables during karate fighting and to assess eventual differences between winners and defeated elite karatekas in an ecologically valid environment.

Methods: Fourteen elite male karatekas who regularly participated in national and international events took part in a national-level competition.

Results: There were no significant differences between winners and defeated karatekas regarding all the studied variables.

[Emphysematous pyelonephritis. Epidemiological, clinical, biological, bacteriological, radiological, therapeutic and prognostic features. Retrospective study of 30 cases].

Background: Emphysematous pyelonephritis is an uncommon, necrotizing bacterial infection of the kidney. It is a severe, life threatening affection.

Aims: To study the epidemiological, clinical, biological, bacteriological and radiological features of this affection, and to describe its therapeutic management and prognostic characteristics.

[Lethal osteo-chondro-dysplasia: feto-pathological study of 32 cases].

Background: The lethal osteochondrodysplasias are rare, their prevalence is estimated at 1 per 10 000 births. Mostly have genetic determinism.

Aims: To describe the malformations and dysmorphic features in lethal osteochondrodysplasias

Methods: Our study involved 32 cases of lethal fetal Osteochondrodysplasias, collected over a period of 14 years in the pathological department of Sousse.