Modelling stroking parameters in competitive sprint swimming: Understanding inter- and intra-lap variability to assess pacing management.

08:00 EDT 5th September 2018 | BioPortfolio

Summary of "Modelling stroking parameters in competitive sprint swimming: Understanding inter- and intra-lap variability to assess pacing management."

This study investigated the inter- and intra-lap variability in stroking parameters during sprint competition to gain insight into the race management of speed (S), stroke length (SL), stroke rate (SR) and stroke index (SI) in relation to gender. The stroking parameters of 32 male and 32 female finalists in the 2015 World Championships and French Championships were analysed during 50-m and 100-m freestyle events. Using a video-derived two-dimensional direct linear transformation system, the biological coefficients of variation (BCV) between cycles were computed for the 50-m and the two laps of the 100-m (L1, L2). Speed changes within each lap were modelled by linear, quadratic or cubic models. The 50-m showed higher S and SR but lower SL and SI than L1. The 50-m exhibited greater BCV S than L1, which showed higher S, SR, SL and SI than L2. BCV S and BCV SL were lower in L1 than L2 but BCV SR was higher in L1 than L2. Male swimmers showed greater BCV S than female swimmers in the 50-m and L1. For the whole population, the linear regression model was dominant in the 50-m (53.1%), L1 (53.1%) and L2 (43.8%). High mean speed often related to high intra-lap speed fluctuations and a linear speed decrease in the 50-m suggesting an 'all-out' pacing, while lower fluctuations occurred during the 100-m suggesting an 'economical' pacing.


Journal Details

This article was published in the following journal.

Name: Human movement science
ISSN: 1872-7646
Pages: 219-230


DeepDyve research library

PubMed Articles [12475 Associated PubMed Articles listed on BioPortfolio]

Fuzzy Petri nets for modelling of uncertain biological systems.

The modelling of biological systems is accompanied with epistemic uncertainties that range from structural uncertainty to parametric uncertainty due to such limitations as insufficient understanding o...

Lambda-cyhalothrin affects swimming activity and physiological responses of Daphnia magna.

λ-cyhalotrin is a pyrethroid pesticide used for protection of crops against various insect pests. Knowledge on behavioural and physiological responses of non-target organisms such as cladocerans is v...

Can Population Modelling Principles be Used to Identify Key PBPK Parameters for Paediatric Clearance Predictions? An Innovative Application of Optimal Design Theory.

Physiologically-based pharmacokinetic (PBPK) models are essential in drug development, but require parameters that are not always obtainable. We developed a methodology to investigate the feasibility ...

Inter-Patient Modelling of 2D Lung Variations from Chest X-Ray Imaging via Fourier Descriptors.

Detailed knowledge of anatomical lung variation is very important in medical image processing. Normal variations of lung consistent with the maintenance of pulmonary health and abnormal lung variation...

Factors Affecting Cyclists' Chances of Success in Match-Sprint Tournaments.

To further the understanding of elite athlete performance in complex race environments by examining the changes in cyclists' performances between solo time trials and head-to-head racing in match-spri...

Clinical Trials [4167 Associated Clinical Trials listed on BioPortfolio]

Evaluation of Image-Based Modelling on Clinical Decisions in Coarctation of the Aorta

To answer the research question: "Would image-based modelling result in different clinical decisions as compared to clinical practice guidelines?", we will conduct a randomized controlled ...

SPRINT Trial Type Blood Pressure Measurements in Patients After Kidney Transplantation

The SPRINT study used a blood pressure measurement procedure that differs from earlier studies in arterial hypertension. SPRINT type readings are lower than regular office measurements. Th...

Swimming Pool Environment Impact on the Human Respiratory Health

This study aims to assess the influence of exposure to swimming pool environment on respiratory symptoms and diseases, and on cancer outcomes among swimmers and swimming pool attendants.

Nordic Hamstring and Repeated-sprint Ability in Football (Soccer) Players

The purpose of the study is to investigate the efficacy of a 10-week intervention, using the Nordic Hamstring exercise, on repeated-sprint ability in male sub-elite football players. The p...

Winter-Swimming and Brown Adipose Tissue Activity in Middel-aged Obese Subjects (WinterBAT).

This study investigates repetitive cold-water exposure on brown fat activity assessed by infrared thermography imagine. Furthermore we will assess glucose control upon winter-swimming. Obe...

Medical and Biotech [MESH] Definitions

Excavations or containment structures filled with water and used for swimming.

A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.

A moderate-growing, photochromogenic species found in aquariums, diseased fish, and swimming pools. It is the cause of cutaneous lesions and granulomas (swimming pool granuloma) in humans. (Dorland, 28th ed)

An activity in which the body is propelled through water by specific movement of the arms and/or the legs. Swimming as propulsion through water by the movement of limbs, tail, or fins of animals is often studied as a form of PHYSICAL EXERTION or endurance.

The act or fact of grasping the meaning, nature, or importance of; understanding. (American Heritage Dictionary, 4th ed) Includes understanding by a patient or research subject of information disclosed orally or in writing.

Quick Search


DeepDyve research library

Relevant Topics

Women's Health
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...

Stroke - Cerebrovascular Disease (CVA)
A stroke is a serious medical condition that occurs when the blood supply to part of the brain is cut off. Strokes are a medical emergency and prompt treatment is essential because the sooner a person receives treatment for a stroke, the less damage is ...

Neurology - Central Nervous System (CNS)
Alzheimer's Disease Anesthesia Anxiety Disorders Autism Bipolar Disorders Dementia Epilepsy Multiple Sclerosis (MS) Neurology Pain Parkinson's Disease Sleep Disorders Neurology is the branch of me...

Searches Linking to this Article