Search results for "palau"
showing 10 items of 261 documents
Yliopisto-opiskelijoiden kokema stressi ja opiskelukuormituksesta palautuminen
2017
Tutkimuksessa selvitettiin Jyväskylän yliopiston toisen ja neljännen vuosikurssin opiskelijoiden kokemaa stressiä ja opiskelukuormituksesta palautumista. Tutkimus on osa Jyväskylän yliopiston Student Life -rahoitteista Onko hoppu? (opiskelijoiden Hyvinvointi, Opiskelusta Palautuminen ja Urahallintataidot) -opiskelijatutkimusta. Tavoitteenamme oli tarkastella Student Life -toimintaan osallistuneiden opiskelijoiden stressiä ja opiskelukuormituksesta palautumista. Tutkimus toteutettiin sähköisellä kyselylomakkeella, johon lähetettiin henkilökohtainen linkki sähköpostitse kaikille Jyväskylän yliopiston toisen ja neljännen vuosikurssin opiskelijoille joulukuussa 2016. Kyselyyn vastasi 990 opiske…
Changes in Body Composition, Energy Metabolites and Electrolytes During Winter Survival Training in Male Soldiers
2022
The aim of this study was to examine changes in body composition, energy metabolites and electrolytes during a 10-day winter survival training period. Two groups of male soldiers were examined: the REC group (n = 26; age 19.7 ± 1.2 years; BMI 23.9 ± 2.7) had recovery period between days 6 and 8 in the survival training, whereas the EXC group (n = 42; age 19.6 ± 0.8 years; BMI 23.1 ± 2.8) did not. The following data were collected: body composition (bioimpedance), energy balance (food diaries, heart rate variability measurements), and biomarkers (blood samples). In survival training, estimated energy balance was highly negative: −4,323 ± 1,515 kcal/d (EXC) and −4,635 ± 1,742 kcal/d (REC). Be…
Physiological and physical performance changes during a 20-day winter military training course and its subsequent 10-day recovery period
2023
The present study investigated physiological, mental and physical performance changes during a 20-day winter military training course and the following 10-day recovery period. Fifty-eight (age 19 ± 1 years, height 182 ± 6 cm, body mass 78.5 ± 7.2 kg) male soldiers volunteered. Body composition, serum biomarker levels and performance tests were measured four times during the study. In addition, questionnaires were collected daily for subjective stress and rate of perceived exertion. The course induced significant declines in body (−3.9%, p < 0.05) and fat mass (−31.6%, p < 0.05) as well as in all assessed physical performance variables (−9.2 - −20.2%, p < 0.05), testosterone (−73.7%, p < 0.0…
Energian- ja voimantuoton palautuminen koripallo-ottelun aikana
2002
Pekka Markkanen. 2002. Energian- ja voimantuoton palautuminen koripallo-ottelun aikana. Liikuntafysiologian Pro Gradu-työ. Liikuntabiologian laitos. Jyväskylän yliopisto. 52 s. Useissa tutkimuksissa on vertailtu eri energiantuottotapoja koripallo-ottelun aikana. Hapen saatavuudella on suuri merkitys palautumisen kannalta, sillä kreatiinifosfaattipitoisuuksien palautuminen on riippuvainen hapen saannista. Myös laktaattiaineenvaihdunta on yhteydessä aerobiseen aineenvaihduntaan. Tämän tutkimuksen tarkoituksena oli vertailla koripallo-ottelun aikana tapahtuvien eripituisten rasitusjaksojen jälkeen ottelutilanteeseen parhaiten soveltuvia palautumisaikoja kahdella eri palautumispituudella. Tutki…
Acute Neuromuscular and Hormonal Responses to Power, Strength, and Hypertrophic Protocols and Training Background
2022
This study investigated how two slightly different athlete groups would differ in acute neuromuscular and endocrine responses to specific resistance exercise loadings and recovery compared to untrained participants. Power athletes (PA, n = 8), strength athletes (SA, n = 8) and non-athletes (NA, n = 7) performed power (PL, 7 × 6 × 50% of 1RM), maximal strength (MSL, 7 × 3 × 3RM), and hypertrophic (HL, 5 × 10 × 10RM) loadings in Smith-machine back-squat. Neuromuscular performance, serum testosterone, growth hormone, and cortisol concentrations, and blood lactate (BL) were measured before (Pre), at Mid and after (Post) loading, and after recovery for 24 and 48 h. All loadings led to acute decr…
Neuromuscular Performance and Hormonal Profile During Military Training and Subsequent Recovery Period
2019
Introduction Military training loads may induce different physiological responses in garrison and field training and only a little is known about how short-time recovery, lasting a few days, affects neuromuscular fitness and hormonal profile. This study aimed to investigate the effects of garrison and field military service on neuromuscular performance and hormonal profile and to evaluate the effects of a 3-day recovery on those factors. Methods Twenty healthy male soldiers (20 ± 1 years) participated in the study, which consisted of 4 days of garrison training [days (D) 1–4] and 7 days of military field training (Days 5–12) followed by a 3-day recovery period (Day 15). Serum hormone concen…
Energy Balance, Hormonal Status, and Military Performance in Strenuous Winter Training
2023
Severe energy deficit may impair hormonal regulation and physical performance in military trainings. The aim of this study was to examine the associations between energy intake, expenditure, and balance, hormones and military performance during a winter survival training. Two groups were studied: the FEX group (n = 46) had 8-day garrison and field training, whereas the RECO group (n = 26) had a 36-h recovery period after the 6-day garrison and field training phase. Energy intake was assessed by food diaries, expenditure via heart rate variability, body composition by bioimpedance, and hormones by blood samples. Strength, endurance and shooting tests were done for evaluating military perform…
Sotilaan kunto kehittyy parhaiten yksilönä
2022
Yksilöllinen lähestymistapa korostuu, kun halutaan parantaa sotialiden fyysistä kuntoa ja operatiivista valmiutta. nonPeerReviewed
Harjoittelun vaikutus palautumiseen maksimaalisesta hapenottokyvyn testistä ja palautumisen yhteys harjoitusvasteeseen
2012
Tutkimuksen tarkoituksena oli selvittää kuinka kuntotasoltaan erilaiset varusmiehet palautuvat maksimaalisesta hapenottokyvyn (VO2max) testistä, onko palautuminen yhteydessä harjoitusvasteeseen ja kuinka fyysisesti kuormittavaa peruskoulutuskausi varusmiehille on. Palautumisen, harjoitusvasteen ja harjoituskuorman yhteyksiä toisiin-sa mitattiin syke- ja hengityskaasumuuttujia käyttäen. Koehenkilöinä oli 59 varusmiestä (ikä19.6 ± 0.3 v). VO2max mitattiin viikoilla 1, 5, 8 ja 10 ja varusmiehet jaettiin kol-meen kuntoluokkaan viikolla yksi mitatun VO2max:n perusteella (>45 ml/kg/min aktii-vi; 40–44.9 ml/kg/min harraste ja <39.9 ml/kg/min perus). Harjoituskuorma TRIMP laskettiin sydämen sykkeen…
Individualized Endurance Training Based on Recovery and Training Status in Recreational Runners
2022
Purpose Long-term development of endurance performance requires a proper balance between strain and recovery. While responses and adaptations to training are highly individual, this study examined whether individually-adjusted endurance training based on recovery and training status would lead to greater adaptations compared to a predefined program. Methods Recreational runners were divided into predefined (PD, n = 14) or individualized (IND, n = 16) training groups. In IND, the training load was decreased, maintained or increased twice a week based on nocturnal heart rate variability, perceived recovery, and heart rate-running speed index. Both groups performed three-week preparatory, six-…