This study aimed to quantify the influence of an increase in power output (PO) on joint kinematics and electromyographic (EMG) activity during an incremental test to exhaustion for a population of professional cyclists. The hip flexion/extension and internal/external rotation as well as knee abduction/adduction ranges of motion were significantly decreased at 100% of the maximal aerobic power (MAP). EMG analysis revealed a significant increase in the root mean square (RMS) for all muscles from 70% of the MAP. Gastrocnemius muscles [lateralis gastrocnemius () and medialis gastrocnemius ()] were the less affected by the increase of PO. Cross-correlation method showed a significant increase in the lag angle values for in the last stage compared to the first stage, meaning that the onset of the activation started earlier during the pedaling cycle. Statistical Parametric Mapping (SPM) demonstrated that from 70% MAP, biceps femoris (), tibialis anterior (), gluteus maximus (), and rectus femoris () yielded larger ranges of the crank cycle on which the level of recruitment was significantly increased. This study revealed specific muscular and kinematic coordination for professional cyclists in response to PO increase.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7988189 | PMC |
| http://dx.doi.org/10.3389/fspor.2020.516911 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Minimum Overnight Interstitial Glucose Concentration in Professional Cyclists During Two Consecutive Annual Training Camps: The Limited Impact of Daily Exercise Energy Expenditure.
Int J Sport Nutr Exerc Metab
December 2024
Performance and Medical Department, VF Group-Bardiani-CSF-Faizanè Professional Cycling Team, Reggio Emilia, Italy.
This observational study investigated the use of continuous glucose monitoring (CGM) in a team of professional cyclists without diabetes during two consecutive annual training camps. The goal of the study was twofold: to present the aggregated CGM metrics such as day/overnight CGM average (DAYAVG/OVNAVG) for this group of professional cyclists and to study the association between exercise energy expenditure (megajoules per day), carbohydrate intake (grams), and minimum overnight CGM values (millimoles per liter). Linear mixed models were employed in the analysis.
View Article and Find Full Text PDFOpen sternal fracture with bilateral dislocation of the sternoclavicular joints after a high-speed bicycle accident: a case report.
J Med Case Rep
November 2024
Clinic for Orthopedics and Trauma Surgery of the University Hospital Bonn, Venusberg Campus 1, 53127, Bonn, Germany.
Article Synopsis
- The case discusses a rare instance of bilateral traumatic sternoclavicular dislocations in a 27-year-old male cyclist who experienced significant injuries during a race.
- Immediate and collaborative surgical intervention was crucial for the patient's recovery, with the absence of complications noted during a 1-year follow-up.
- The report emphasizes the importance of comprehensive trauma management in complex cases, showcasing this injury's rarity and the effectiveness of quick transportation to specialized care facilities.
'Downhill race for a rainbow jersey': the epidemiology of injuries in downhill mountain biking at the 2023 UCI cycling world championships-a prospective cohort study of 230 elite cyclists.
BMJ Open Sport Exerc Med
October 2024
Centre for Public Health, Queen's University Belfast, Belfast, UK.
Objectives: This study aims to understand the prevalence, incidence rate, anatomical sites, injury severity and main medical actions carried out during official training and racing by elite downhill mountain biking (DHMTB) riders during the 2023 Union Cycliste Internationale (UCI) Cycling World Championships.
Methods: The participants of this prospective, observational study were elite male and female cyclists competing at the UCI DHMTB World Championships located in the Nevis range in Fort William, Scotland, in 2023. This study followed the injury reporting guidelines established by the International Olympic Committee, which include the Strengthening the Reporting of Observational Studies in Epidemiology-Sports Injury and Illness Surveillance (SIIS) and the cycling-specific extension.
Continuous measurement of interstitial glycaemia in professional female UCI world tour cyclists undertaking a 9-day cycle training camp.
Eur J Sport Sci
November 2024
Applied Sport, Technology, Exercise and Medicine Research Centre, Swansea University, Swansea, UK.
Article Synopsis
- Researchers monitored nine cyclists using glucose sensors during a training camp to analyze their interstitial glucose (iG) levels across different times of the day.
- The study found that on average, cyclists spent 93% of the time in the normal glucose range, 8% below, and 3% above that range, with daytime glucose levels being significantly higher than nighttime levels.
- The findings suggest that lower glucose levels during the night could have implications for non-diabetics and highlight the need for further research on glucose management in athletes.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!