The primary objective of the present study was to estimate the effectiveness of the new methods of physical rehabilitation for mountain ski athletes designed to optimize and accelerate restoration of their professional capabilities after arthroscopic plastic reconstruction of anterior cruciate ligament (ACL). This open controlled prospective study involved 26 alpine skiers aged from 18 to 25 who were recruited into the regular follow up program based at our Centre during the last 3 years. The athletes proved able to start balance training on the Biodex platform 4 weeks earlier than with the use of the conventional approach. These exercises were supplemented by the training of speed endurance on the Speed Courte tensor platform and Sky Teck ski simulators. Control studies were carried out on the 16th and 24th weeks of the rehabilitation period. Their results were compared with the results shown by the same athletes before injury. It was found that the early introduction of exercises designed to normalize proprioception into the rehabilitative treatment allowed the injured mountain ski athletes to restore the strength of femoral muscles and specific professional skills by the 4th month of the rehabilitation period. It is concluded that the combination of classical rehabilitative techniques with balance training, Speed Court training, and training on the alpine ski simulator makes it possible to begin special of alpine ski training on the snow 2 months earlier than with the use of conventkional methods.
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Int J Sports Physiol Perform
December 2024
School of Sport Science, UiT The Arctic University of Norway, Tromsø, Norway.
Introduction: Women have generally lower body size and lean- to fat-mass ratio, lower maximal anaerobic power due to a lower muscle mass, and fewer fast-twitch fibers, although they can show higher resistance to fatigue or greater metabolic flexibility than men. These factors are well known and explain the sex differences in endurance sports such as distance running (10%-12%). Several of these factors-particularly the differences in body composition and skeletal-muscle characteristics-may directly impact vertical displacement and uphill performance.
View Article and Find Full Text PDFSports (Basel)
December 2024
Department of Physical Education and Health in Biala Podlaska, Faculty in Biała Podlaska, Jozef Pilsudski University of Physical Education, 00-968 Warsaw, Poland.
Frequent changes in altitude and oxygen levels limit the practical application of traditionally derived exercise thresholds or training zones based on heart rate (HR) or blood lactate concentration (bLa). We investigated the transferability of a muscle oxygenation (SmO)-based intensity prescription between different hypoxic conditions to assess the suitability of real-time SmO measurements for ski-mountaineering (SKIMO) athletes during submaximal endurance exercise. A group of 15 well-trained male SKIMO athletes performed a graded-intensity run test in normoxia (87 m ASL, FiO = 20.
View Article and Find Full Text PDFJ Cardiovasc Surg (Torino)
December 2024
Department of Cardiac Surgery, Grenoble Alps University Hospital, Grenoble, France.
Background: Skiing can cause aortic syndromes. The pre-hospital management of these patients may be compromised by the mountainous terrain. A regional emergency care network helps to optimize time frames, especially in a challenging geography.
View Article and Find Full Text PDFBMJ Open Sport Exerc Med
December 2024
Department of Sports Medicine, Swiss Olympic Medical Center, Lausanne University Hospital, Lausanne, Switzerland.
Objectives: This study aimed to investigate the short-term effects of a 1-hour floatation-resting environmental therapy (FLO) versus conventional napping (NAP) on heart rate variability (HRV) in highly trained individuals.
Methods: 20 non-fatigued participants underwent a prospective randomised interventional study comparing the impacts of FLO and NAP on both supine and standing HRV. Measurements were taken before and after each intervention under controlled conditions, and subjective experiences were assessed through questionnaires.
Sports Med Open
November 2024
Department of Health Sciences, Swedish Winter Sports Research Centre, Mid Sweden University, Östersund, Sweden.
Background: Most sex comparisons in endurance sports have been derived from performance-matched groups of female and male athletes competing over similar distances within summer sports. Corresponding analyses of sex differences in winter endurance sports have not previously been conducted. In the Olympic Winter Games (OWG), the endurance sports include cross-country skiing (XCS), biathlon (BIA), Nordic combined (NC), ski mountaineering (SkiMo) and long-track speed skating (SpSk).
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