Search results for "ylikunto"
showing 5 items of 5 documents
Heart rate variability in chronic and acute stress : with special reference to nocturnal sleep and acute challenges after awakening
2011
Heart rate acceleration at relative workloads during treadmill and overground running for tracking exercise performance during functional overreaching
2020
AbstractMaximal rate of heart rate (HR) increase (rHRI) as a measure of HR acceleration during the transition from rest to exercise, or during an increase in workload, tracks exercise performance. rHRI assessed at relative rather than absolute workloads may track performance better, and a field test would increase applicability. This study therefore aimed to evaluate the sensitivity of rHRI assessed at individualised relative workloads during treadmill and overground running for tracking exercise performance. Treadmill running performance (5 km time trial; 5TTT) and rHRI were assessed in 11 male runners following 1 week of light training (LT), 2 weeks of heavy training (HT) and a 10-day tap…
Energy availability during training camp is associated with signs of overreaching and changes in performance in young female cross-country skiers
2021
Abstract Study aim: The aim of this study was to evaluate if young female skiers meet their energy and macronutrient requirements, and how energy availability (EA) and macronutrient intake affects their performance during an intensive training camp. Material and methods: 19 female cross-country skiers (age 16.7 ± 0.7) filled in 48-hour food and training logs during a 5-day training camp. Fasting concentrations of hemoglobin, leptin, triiodothyronine (T3), insulin, insulin-like growth factor 1 (IGF-1), and glucose were measured before (PRE) and after (POST) the camp. Blood lactate (LA), heart rate (HR) and rating of perceived exertion (RPE) from a submaximal treadmill running test, jump heig…
Ylirasitustilan toteaminen, ennaltaehkäisy ja hoito tapaustutkimuksena
2008
Marjoona Teljo, 2008. Ylirasitustilan toteaminen, ennaltaehkäisy ja hoito tapaustutkimuksena. Jyväskylän Yliopisto. Liikuntabiologian laitos. Valmennus- ja testausopin kandidaatintutkielma, 38s. Ylirasitustila määritellään usein johtuvan epätasapainosta harjoittelun ja levon välillä, jolloin kuormitus on pidemmän aikaa liian suuri eikä elimistö pysty palautumaan harjoitusten välillä. Harjoittelu ja palautuminen ovat tärkeimmät ylirasitustilan syntyyn vaikuttavat tekijät, mutta fyysisen harjoittelun aiheuttama stressi ei ole ainoa urheilijaa kuormittava tekijä, vaan stressillä on monta lähdettä. Ylirasitustilassa usein näiden summa onldn yhttänyt yksilön sietokyvyn ja vain harvoin on kyse ai…
Effects of military training on plasma amino acid concentrations and their associations with overreaching.
2020
Amino acids are thought to have a key role in the processes contributing to overreaching development through their metabolic properties and neuronal functions. In the present study, the effects of 10-week military training on the concentrations of 19 amino acids were investigated. Plasma amino acid concentrations were measured at rest from 53 healthy male conscripts on weeks 1, 4, 7, and 9 of their military service. Conscripts were classified as overreached and non-overreached. Overreaching classification was based on fulfilling at least three of five criteria: greater than 5% decrease in maximal oxygen uptake, increased rating perceived exertion (RPE), and decreased lactate-RPE ratio in s…