A5040328779- Heart Rate Variability and Autonomic Control
- Cardiovascular and exercise physiology
- Sports Performance and Training
- Non-Invasive Vital Sign Monitoring
- Cardiovascular Syncope and Autonomic Disorders
- Muscle metabolism and nutrition
- Vagus Nerve Stimulation Research
- Coffee research and impacts
- Children's Physical and Motor Development
- EEG and Brain-Computer Interfaces
- Pharmacological Effects and Assays
- Eating Disorders and Behaviors
- Phonocardiography and Auscultation Techniques
- Exercise and Physiological Responses
- Sleep and related disorders
- Asthma and respiratory diseases
- Muscle activation and electromyography studies
- Sports injuries and prevention
Polar (Finland)
2017-2025
Institute for Sports Medicine
2019
University of Würzburg
2019
Hessische Hochschule für Polizei und Verwaltung
2019
Diakonhjemmet Hospital
2017
University Hospital of Bern
2016
University of Bern
2016
Previous studies on the effects of intensified training sleep quality/quantity have been somewhat contradictory. Moreover, recreational athletes often track various metrics, and those metrics’ actual connections to adaptations are unknown. This study explored nightly recovery along with their associations adaptations. A total 24 participants (10 females) performed a 3-week baseline period (BL), 2-week overload (OL), 1-week (REC), which were followed by test days (T1–T3). The endurance...
ABSTRACT Purpose The aim was to compare mesocycles with progressively increasing workloads and varied training intensity distribution (TID), that is, high-intensity (HIGH, > 4 mmol·L −1 blood lactate), low-intensity (LOW, < 2 lactate) or a combination of HIGH LOW (referred as “polarized” [POL]) on 5000-m running time key components endurance performance in recreational runners. Methods Forty-two runners (peak oxygen uptake (V˙O 2peak ): 45.2 ± 5.8 mL·min ·kg ) were systematically...
Caffeine increases sympathetic nerve activity in healthy individuals. Such modulation of nervous system can be tracked by assessing the heart rate variability. This study aimed to investigate influence caffeine on time- and frequency-domain variability parameters, blood pressure tidal volume paraplegic tetraplegic compared able-bodied participants. Heart was measured supine sitting position pre post ingestion either placebo or 6 mg 12 able-bodied, 9 7 participants a placebo-controlled,...
The main purpose of this study was to identify whether a different protocol achieve maximal heart rate should be used in sprinters when compared middle-distance swimmers. As incorporating running training into swim is gaining increased popularity, secondary aim determine the difference between front crawl swimming and among elite Twelve swimmers (4 female 8 male, 7 5 middle-distance, age 18.8 years body mass index 22.9 kg/m2) swam three protocols using 50 m, 100 m 200 step-test followed by...
The present randomized cross-over controlled study aimed to compare the rate of recovery from a strength-oriented exercise session vs. power-oriented with equal work. Sixteen strength-trained individuals conducted one (five repetitions maximum (RM)) and (50% 5RM) in order. Squat jump (SJ), countermovement (CMJ), 20-m sprint, squat bench press peak power estimated 1RMs were combined measures perceived exertion (RPE) status (PRS), before, immediately after 24 48 h exercise. Both sessions...
It is increasingly popular to use heart-rate variability (HRV) tailor training for athletes. A time-efficient method HRV assessment during deep sleep.To validate the selection of deep-sleep segments identified by RR intervals with simultaneous electroencephalography (EEG) recordings and compare parameters these those standard morning supine measurements.In 11 world-class alpine skiers, were monitored 10 nights, EEGs recorded 2-4 nights. Deep sleep was determined from signal verified delta...
Background and Objectives: During intense training periods, there is a high need to monitor the external especially internal load in order fine-tune process avoid overreaching or overtraining. However, data on stress reactions, of biomarkers, loads children youth are rare. Therefore, this study, we aimed investigate athletes during camp using multilevel approach. Materials Methods: Six trained male cyclists performed 7-day preseason camp. To load, every morning, minimally invasive...
Summary Study aim: To determine the reliability and validity of a time domain heart rate variability (HRV) index during free-living physical activity (FLPA). Material methods: Eight white-collar workers participated in this study. RR intervals (time between consecutive R-peaks PQRS complex) were recorded using Polar V800 (HR) monitor upon awakening at work on 16 different days. A total 127 cycles sitting periods followed by walking breaks included for pairwise analysis reliability. The HR...
Caffeine reduces glucose tolerance, whereas exercise training improves homeostasis. The aim of the present study was to investigate effect caffeine on tolerance morning after an acute bout aerobic exercise. Methods: had a 2 × factorial design. Oral tests (OGTT) were performed overnight fasting with/without and evening before. Eight healthy young active males included (Age 25.5 ± 1.5 years; 83.9 9.0 kg; VO2max: 54.3 7.0 mL·kg−1·min−1). session consisted 30 min cycling at 71% VO2max followed...
Measuring resting heart rate variability (HRV) indices constitutes an interesting, non-invasive and simple tool to monitor fatigue performance responses. The orthostatic test (OT) where beat-to-beat (RR) intervals are measured is widely used measure HRV. feasibility in daily use would, however, increase considerably if vagal related HRV could be analysed from free living physical activity. PURPOSE: To determine the reliability validity of during routine situations. METHODS: Eight...
Rate of perceived exertion (RPE) has been shown to be highly correlated with heart rate based training load calculations. However, there is limited information whether RPE can also used estimate muscle activation during exercise. PURPOSE: Therefore, we aimed assess the relationship between integrated electromyography (iEMG) and in breaststroke swimming. METHODS: Nine elite swimmers (4 male 5 female, 24 ± 7 years, BMI 23 2 kg/m2) swam 25 m at 60% (Borg scale 11), 80% 15) 100% maximal effort...