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Scandinavian Journal of Medicine & Science in Sports

Valérie Julian, David Thivel, Maud Miguet, Bruno Pereira, Frédéric Costes, Emmanuel Coudeyre, Martine Duclos, Ruddy Richard
The benefits of eccentric (ECC) training on fat mass (FM) remain underexplored. We hypothesized that in obese adolescents, ECC cycling training is more efficient for decreasing whole-body FM percentage compared to concentric (CON) performed at the same oxygen consumption (VO2 ). Twenty-four adolescents aged 13.4±1.3 yrs. (BMI >90th percentile) were randomized to ECC or CON. They performed 3 cyclo-ergometer sessions per week (30 min per session) for 12 weeks: 2 habituation, 5 at 50% VO2peak , and 5 at 70% VO2peak ...
September 17, 2018: Scandinavian Journal of Medicine & Science in Sports
Jennifer M Jakobi, Carey L Simpson, Rowan R Smart, Brian O'Connor
The letter by JP Nunes and colleagues raise concerns over the conclusions and results of the manuscript "Stretch training induces unequal adaptation in muscle fascicles and thickness of the medial and lateral gastrocnemii" published in Scand J Med Sci Sports 27(12):1597-1604, 2017 based on the statistical analysis employed. Nunes et al., are thanked for the careful consideration of our published work, which has given us the opportunity to provide additional data and statistics to address the published conclusion of increased gastrocnemii muscle thickness (MT) with chronic static stretch training...
September 15, 2018: Scandinavian Journal of Medicine & Science in Sports
Finn Nilson, Fredrik Lindberg, Gunnar Palm, Linnea Lundgren, David Rayner, Mats Börjesson, Sofia Thorsson, Amir Khorram-Manesh, Eric Carlström
OBJECTIVES: Despite endurance races leading to a substantial number of ambulance-requiring cases (ARC), little is known regarding where they occur, meaning that knowing where to place medical teams, ambulance pick-up points, etc., is difficult. This article investigates if the location of ARCs can be identified by race participants. METHODS: Using the world's largest half marathon (Gothenburg half marathon) as a case, 237 runners were asked, post-race, to mark on a map which geographical point of the race was most exhausting...
September 15, 2018: Scandinavian Journal of Medicine & Science in Sports
Sune Dandanell, Anne-Kristine Meinild-Lundby, Andreas B Andersen, Paul F Lang, Laura Oberholzer, Stefanie Keiser, Paul Robach, Steen Larsen, Bent R Rønnestad, Carsten Lundby
Elite endurance athletes possess a high capacity for whole body maximal fat oxidation (MFO). The aim was to investigate the determinants of a high MFO in endurance athletes. The hypotheses were that augmented MFO in endurance athletes is related to concomitantly increments of skeletal muscle mitochondrial volume density (MitoVD ) and mitochondrial fatty acid oxidation (FAOp ), i.e. quantitative mitochondrial adaptations as well as intrinsic FAOp per mitochondria, i.e. qualitative adaptations. Eight competitive male cross-country skiers and eight untrained controls were compared in the study...
September 15, 2018: Scandinavian Journal of Medicine & Science in Sports
Robert W Davies, Brian P Carson, Joseph J Bass, Sorcha Holohan, Philip M Jakeman
Twenty-three resistance trained men 18 to 35 y (23 (3) y, 1.8 (0.1) m, 81 (10) kg body mass, 2.3 (1.1) y resistance training experience; mean (SD)) performed repeated maximal voluntary isometric squats (ISQ) and countermovement jumps (CMJ) pre- and +30 min post a unilateral microbiopsy of m. vastus lateralis. ISQ and CMJ were simultaneously measured by two force plates sampling ipsilateral (biopsied) and contralateral (non-biopsied) limb force. Bilateral limb force (ipsilateral + contralateral) and imbalance (ipsilateral · bilateral-1 ) data are reported as % change from pre-biopsy (mean [95% CI])...
September 11, 2018: Scandinavian Journal of Medicine & Science in Sports
Henrik Riel, Bill Vicenzino, Martin Bach Jensen, Jens Lykkegaard Olesen, Sinead Holden, Michael Skovdal Rathleff
Isometric exercise is commonly recommended for immediate pain relief in individuals suffering from lower limb tendinopathies, despite the limited evidence supporting its analgesic effect. Due to the similarities between plantar fasciopathy and tendinopathies, the aim of this trial was to investigate the acute effect of isometric exercise on pain, compared to isotonic exercise, or walking, in individuals with plantar fasciopathy. We recruited 20 individuals with plantar fasciopathy for this prospectively-registered, participant-blinded, randomised, superiority crossover trial (ClinicalTrials...
September 11, 2018: Scandinavian Journal of Medicine & Science in Sports
Matthew J Rogatzki, Sydney A Keuler, Abigail E Harris, Scott W Ringgenberg, Ryanne E Breckenridge, Jeffrey L White, Julien S Baker
OBJECTIVE: To determine if serum S100B increases similarly as a result of playing American football compared to exercise alone. METHODS: Serum S100B was measured in division III collegiate football players before and after every home game during a single football season. Serum S100B was also measured before and after subjects walked on a treadmill for 30 minutes at a leisurely pace, ran on a treadmill while wearing and not wearing a football helmet at 6 mph for 8 minutes, and performed low, moderate, or high intensity resistance exercise...
September 11, 2018: Scandinavian Journal of Medicine & Science in Sports
Emily Procter, Hermann Brugger, Martin Burtscher
The popularity of recreational activities in the mountains worldwide has led to an increase in total number of persons exposed to cold and extreme environments through recreation. There is little conclusive evidence about the risk of hypothermia for specific activities or populations, nor is it clear which activities are represented in the literature. This is a non-systematic review of accidental hypothermia in different recreational activities in the mountains, with a specific focus on outdoor or winter activities that potentially involve cold exposure...
September 11, 2018: Scandinavian Journal of Medicine & Science in Sports
O Stivalet, D Lanéelle, G Mahé, V Jaquinandi, L Omarjee
We read with interest the paper from Godet et al. entitled. "Post-exercise ankle blood pressure and ankle to brachial index (ABI) after heavy load bicycle exercise".1 In this paper, the authors suggest that the American Heart Association (AHA) criteria after an heavy load test on a cycle ergometer are inadequate for the diagnosis of lower extremity peripheral artery disease (LEPAD) This article is protected by copyright. All rights reserved.
September 5, 2018: Scandinavian Journal of Medicine & Science in Sports
R Godet, A Bruneau, B Vielle, F Vincent, T Le Tourneau, F Carre, D Hupin, J F Hamel, P Abraham, S Henni
We thank Stivalet et al. for their letter about our manuscript studying ankle pressure and ankle brachial index (ABI) after incremental heavy load exercise. The detailed description of procedures and populations of the previous studies are of interest and correct but the suggestion that we calmed that the "American Heart Association (AHA) criteria after a heavy load test on a cycle ergometer are inadequate for the diagnosis of lower extremity peripheral artery disease (PAD)" is not exact… Stivalet et al...
September 1, 2018: Scandinavian Journal of Medicine & Science in Sports
Philémon Marcel-Millet, Gilles Ravier, Sidney Grospretre, Philippe Gimenez, Sébastien Freidig, Alain Groslambert
This study aimed to assess the effect of wearing a breathing apparatus during a simulated rescue intervention on psycho-physiological responses and parasympathetic reactivation of firefighters. Thirty-four firefighters participated in this study which consisted of four experimental sessions conducted randomly: a maximal fitness test and three rescue interventions performed 1) with personal protective clothing (PPC); 2) with PPC and the full self-contained breathing apparatus (SCBA), including cylinder, full-face piece and breathing regulator; and 3) with PPC and only the cylinder of the self-contained breathing apparatus (SCBAc)...
September 1, 2018: Scandinavian Journal of Medicine & Science in Sports
Antje Ullrich, Sophie Baumann, Lisa Voigt, Ulrich John, Neeltje van den Berg, Marcus Dörr, Sabina Ulbricht
We aimed to identify patterns of sedentary behavior (SB) and examined whether cardiorespiratory fitness differs between classes with distinct patterns of SB. One hundred seventy participants (57% women, mean age = 56.4 years) received accelerometry monitoring for seven days. Prior to accelerometry assessment, cardiorespiratory fitness was assessed by peak oxygen uptake (VO2peak ). VO2peak was directly measured during a symptom-limited cardiopulmonary exercise testing on a cycle ergometer. Patterns in accelerometer data were classified based on time spent in SB per day using growth mixture modeling...
September 1, 2018: Scandinavian Journal of Medicine & Science in Sports
Xiaolin Yang, Anna Kankaanpää, Stuart J H Biddle, Mirja Hirvensalo, Harri Helajärvi, Nina Hutri-Kähönen, Olli T Raitakari, Tuija Tammelin
PURPOSE: The long-term effects of sociodemographic and health characteristics on television viewing (TV) time changes have not been identified in adulthood. We aimed to examine the modifiable and non-modifiable determinants of changes in TV-time in young adults over 10 years. METHODS: Participants (N=2929) aged 24-39 years were recruited between 2001 and 2011 from the Cardiovascular Risk in Young Finns Study. Data were collected using questionnaires and a medical examination...
September 1, 2018: Scandinavian Journal of Medicine & Science in Sports
Giacomo Severini, Donal Holland, Aisling Drumgoole, Eamonn Delahunt, Massimiliano Ditroilo
Hamstring injuries are common in field sport athletes. Eccentric strength training of the hamstring muscles is an integral component of rehabilitation programmes. The Askling L-Protocol comprises three exercises [Extender; Diver; Glider] that load the hamstrings during eccentric activity. When compared to a conventional exercise-based rehabilitation programme, the Askling L-Protocol has been shown to reduce the time to return to sport following hamstring injury and prevalence of injury recurrence. Nevertheless, the mechanisms behind its efficacy have yet to be studied...
September 1, 2018: Scandinavian Journal of Medicine & Science in Sports
Arto Laukkanen, Donna Niemistö, Taija Finni, Marja Cantell, Elisa Korhonen, Arja Sääkslahti
We examined the relationship between physical activity parenting (PAP) and child, family, and environmental factors in families. The participants were 840 families with young children (n = 993; 5.40 ± 1.14 years) and parents (n = 993; 35.8 ± 5.29 years). Parents' self-reported PAP (co-participation, (in)direct support and encouragement), child-specific (sex, age, temperament, outdoor time, organised physical activity or sports, sedentary time, media time, PA enjoyment, motor skills compared to peers, PA and sport facility use), family-specific (respondent's sex, age, education, exercise frequency, family income, family status, number of children in the family, child's birth order and partner's PAP and exercise frequency) and environment-specific (residential density, access to sport and outdoor facilities, type of house and access to electronic devices) factors were collected...
August 30, 2018: Scandinavian Journal of Medicine & Science in Sports
Ryan N Moran, Tracey Covassin
The King-Devick (K-D) test has gained popularity as a sideline concussion assessment tool, comprising of visual tracking and saccadic eye movements. However, limited normative data exists for youth athletes under the age of 13. The purpose of this study was to establish normative reference values and examine the internal consistency of the K-D test in youth athletes. The K-D test was administered to 422 youth football and soccer athletes prior to their respective season. The average K-D score was 54.29±11...
August 28, 2018: Scandinavian Journal of Medicine & Science in Sports
João Pedro Nunes, Masatoshi Nakamura, Brad J Schoenfeld, Edilson S Cyrino
Scand J Med Sci Sports 27(12):1597-1604, 2017 describes the efficacy of stretch training on increasing gastrocnemii muscle thickness. However, the reported data does not seem to support the author's conclusions, based on the presented results. This letter discusses the issues with the paper. This article is protected by copyright. All rights reserved.
August 24, 2018: Scandinavian Journal of Medicine & Science in Sports
Liliana C Baptista, Manuel Teixeira Veríssimo, Raul A Martins
BACKGROUND: Exercise training (EX) and statins are first-line therapies to manage dyslipidemia. PURPOSE: This study aims to analyze the effect of EX and statins on functional status and cardiovascular risk (CVR) in dyslipidemic older adults with comorbidities. METHODS: Participants (n = 981) underwent one of 3 conditions: i) multicomponent exercise training (EX; n = 298; 74% females); ii) statins (ST; n = 178; 65% females); iii) combined therapy - exercise plus ST therapy (ST+EX; n = 505; 79% females)...
August 23, 2018: Scandinavian Journal of Medicine & Science in Sports
Arne Deiseroth, Monique Nussbaumer, Verena Drexel, Gernot Hertel, Arno Schmidt-Trucksäss, Charalambos Vlachopoulos, Martin Halle, Henner Hanssen
BACKGROUND AND AIMS: Participation in exhaustive endurance sports competitions continues to be popular. Questions about the cardiovascular side effects of prolonged excessive exercise persist. Our study aimed to elucidate the acute effects of marathon running on arterial stiffness (AST) and to detect the role of body composition, fitness status, and inflammation. METHODS: Body composition was investigated in lean and obese recreational runners taking part in a marathon race...
August 23, 2018: Scandinavian Journal of Medicine & Science in Sports
Timo Nyyssönen, Iikka Lantto, Peter Lüthje, Tuomas Selander, Heikki Kröger
The incidence of Achilles tendon (AT) rupture, especially nonsport-related rupture, is increasing, while the reasons for this increase are largely unknown. The association between the AT rupture and the use of various drug treatments was studied. We collected AT rupture patients from the Finnish Hospital Discharge Register. We also acquired information about all the doctor-prescribed drugs they had purchased within 1 year before the rupture. For comparison, we randomly selected age- and sex-matched controls from the Finnish Population Register...
August 18, 2018: Scandinavian Journal of Medicine & Science in Sports
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