Hirotsugu Morinaga

ORCID: 0009-0009-4187-2669
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About
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Research Areas
  • Sports Performance and Training
  • Sports injuries and prevention
  • Sports Dynamics and Biomechanics
  • Physical Education and Training Studies
  • Muscle activation and electromyography studies
  • Infrared Thermography in Medicine
  • Exercise and Physiological Responses
  • Cardiovascular and exercise physiology
  • Thermoregulation and physiological responses
  • Occupational Health and Performance
  • Heart Rate Variability and Autonomic Control

National Institute of Fitness and Sports in Kanoya
2023-2024

It remains unknown whether a regimen of combination high- and low-intensity resistance training increases muscle size maximal voluntary isometric contraction (MVC) simultaneously. This study aimed to clarify the effect on neuromuscular function in elbow flexors. Sixteen male adults participated 9-week joint flexion each arm. We randomly assigned two different regimens left right arms: one aiming strengthen strength (ST) other develop as well strength, which consists volitional failure with...

10.3390/ijerph20053837 article EN International Journal of Environmental Research and Public Health 2023-02-21

BACKGROUND: Adaptation to short-term overload training may differ from inter-individual variation during a given exercise. This study aimed elucidate the relationship between relative changes in aerobic power and load 2-week taper following training.METHODS: Seventeen healthy men participated 5-week program consisting of pedaling exercises were assigned control (CON, N.=7) an experimental group (EXP, N.=10). Following 1-week common as familiarization both groups, EXP conducted followed by...

10.23736/s0393-3660.23.05184-7 article EN Gazzetta Medica Italiana Archivio per le Scienze Mediche 2024-06-01

The purpose of this study was to investigate the effects elevated core temperature by exposure heat stress vs. without (mean skin only) in addition mental fatigue on aerobic exercise capacity heat. Seven highly trained athletes completed two experimental conditions: elevation and temperatures (hyperthermia: HYP), (SKIN). Participants performed AX-Continuous Performance Task Stroop induce during a warm water immersion at 40 °C (HYP) passive seated climatic chamber 35 60% relative humidity...

10.1186/s40101-024-00377-0 article EN cc-by Journal of PHYSIOLOGICAL ANTHROPOLOGY 2024-11-25

This study aims to clarify the effects of heart rate variability (HRV)-guided aerobic training on submaximal and maximal power. Twelve active men participated in a 5-week intervention were divided into two groups: block periodization group (BP, n = 6) HRV-guided (HRV-G, 6). All participants underwent same during week one. In weeks 2–5, load for HRV-G was adjusted based HRV an individual waking. The BP 2 overload followed by taper training. To determine powers, incremental test performed at...

10.55860/6mjpk208 article EN Journal of Human Sport and Exercise 2024-12-16

We tested a hypothesis that individuals with low maximal voluntary isometric contraction relative to muscle cross-sectional area (MVC/mCSA) would have greater strength gain compared those high MVC/mCSA in an early stage from beginning of training volitional failure. Male adults (n = 24; 22.4 ± 2.5 years, 174.1 6.5 cm, 75.8 14.1 kg) conducted 3-week failure (60-80% MVC, 2-3 times/week, 3 sets/session) elbow joint flexion 90° each arm. Based on the relationship between MVC and mCSA before...

10.7600/jpfsm.12.161 article EN cc-by-nc-nd The Journal of Physical Fitness and Sports Medicine 2023-11-13
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