大川原 洋樹

論文

• Novel presenteeism evaluation system using tailored individual reference of heart rate variability

  Hiroki Okawara, Takeo Nagura, Masaya Nakamura, Kazuki Sato, Yoshinori Katsumata

  Critical Public Health 2026年12月31日 筆頭著者
• An iPSC-derived neural progenitor cell therapy for subacute spinal cord injury: a phase 1 trial with long-term follow-up

  Keiko Sugai, Osahiko Tsuji, Kanehiro Fujiyoshi, Masahiro Ozaki, Takayuki Abe, Tsuneo Kohzuki, Hiroki Okawara, Tomonori Sawada, Miho Sumida, Ema Yoshioka …

  Nature Medicine 2026年7月21日 査読有り
• Validation of aerobic threshold assessment using a sweat lactate sensor during arm crank exercise by healthy adults.

  Tomonori Sawada, Hiroki Okawara, Kazuki Minami, Shintaro Narushima, Ayaka Shiratori, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura, Daisuke Nakashima

  Physiological reports 14(13) e71002 2026年7月 査読有り
• Hydrogen-rich water has a positive effect on heart rate variability at rest and during orthostatic loading, but not during cycling, in healthy adults: A pilot randomized, placebo-controlled crossover trial

  Yuki Muramoto, Emi Minaguchi, Kazuhisa Sugai, Kyohei Daigo, Yuji Iwasawa, Momoi Mizuki, Genki Ichihara, Hiroki Okawara, Tomonori Sawada, Iwao Sakane …

  Heliyon 2026年4月 査読有り
• Optimal placement of metatarsal pads for patients with hallux valgus based on plantar pressure measurement

  Satoshi Hakukawa, Takeshi Hashimoto, Hiroki Okawara, Tomonori Sawada, Kohei Nishizawa, Masahiro Okuno, Takashi Koube, Takeo Nagura

  Foot and Ankle Surgery 2026年2月
• Aerobic Threshold Evaluation Using a Sweat Lactate Sensor in Healthy Women.

  Tomonori Sawada, Hiroki Okawara, Shintaro Narushima, Kazuki Minami, Ayaka Shiratori, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura, Daisuke Nakashima

  International journal of sports medicine 2026年1月12日
• A novel fatigue monitoring system using sweat lactate: a preliminary study

  Ayumu Takemoto, Hiroki Okawara, Tsubasa Sudo, Tomonori Sawada, Rei Hirakawa, Yuki Muramoto, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura, Daisuke Nakashima

  Fatigue: Biomedicine, Health & Behavior 2026年1月2日 筆頭著者
• Angiotensin-converting gene and hypoxic exercise tolerance: a randomized crossover trial.

  Yuki Muramoto, Mizuki Momoi, Daisuke Nakashima, Kakeru Omae, Kazuhisa Sugai, Kyohei Daigo, Yuji Iwasawa, Genki Ichihara, Hiroki Okawara, Tomonori Sawada …

  International journal of sports medicine 2025年1月9日 査読有り
• Exercise therapy can effectively improve trunk performance and sitting balance in spinal cord injury: a systematic review and meta-analysis.

  Hiroki Okawara, Tomonori Sawada, Saki Onuki, Keiko Sugai, Toshiki Okubo, Masahiro Ozaki, Osahiko Tsuji, Narihito Nagoshi, Yasunori Sato, Masaya Nakamura

  Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology 2024年12月30日 査読有り筆頭著者
• Lactate threshold evaluation in swimming using a sweat lactate sensor: A prospective study

  Hiroki Okawara, Tomonori Sawada, Daisuke Nakashima, Haruki Fujitsuka, Yuki Muramoto, Daigo Hinokuma, Yuta Oshikiri, Keisuke Ishizaki, Jiro Miki, Reira Hara …

  European Journal of Sport Science 2024年9月 査読有り筆頭著者
• Sweat lactate sensor for detecting anaerobic threshold in heart failure: a prospective clinical trial (LacS-001).

  Yoshinori Katsumata, Yuki Muramoto, Noriyuki Ishida, Ryo Takemura, Kengo Nagashima, Takenori Ikoma, Naoto Kawamatsu, Masaru Araki, Ayumi Goda, Hiroki Okawara …

  Scientific reports 14(1) 18985-18985 2024年8月16日 査読有り
• Local alternating heat and cold stimulation affects hemodynamics and oxygenation in fatigued muscle tissue and autonomic nervous activity: a single-arm interventional study.

  Tomonori Sawada, Hiroki Okawara, Daisuke Nakashima, Kentaro Aoki, Mira Namba, Shuhei Iwabuchi, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura

  Journal of physiological anthropology 43(1) 11-11 2024年3月25日 査読有り
• Visually assessing work performance using a smartwatch via day-to-day fluctuations in heart rate variability

  Hiroki Okawara, Yasuyuki Shiraishi, Kazuki Sato, Masaya Nakamura, Yoshinori Katsumata

  DIGITAL HEALTH 10 20552076241239240-20552076241239240 2024年1月 査読有り筆頭著者
• Turning and sitting movements during timed up and go tests predict deterioration of physical function in middle-aged adults.

  Kohei Nishizawa, Kengo Harato, Satoshi Hakukawa, Hiroki Okawara, Tomonori Sawada, Hiroyuki Ishida, Takeo Nagura

  Gait & posture 108 329-334 2023年12月29日 査読有り
• Anaerobic threshold using sweat lactate sensor under hypoxia

  Hiroki Okawara, Yuji Iwasawa, Tomonori Sawada, Kazuhisa Sugai, Kyohei Daigo, Yuta Seki, Genki Ichihara, Daisuke Nakashima, Motoaki Sano, Masaya Nakamura …

  Scientific Reports 2023年12月21日 査読有り筆頭著者
• Estimation of maximal lactate steady state using the sweat lactate sensor

  Yuki Muramoto, Daisuke Nakashima, Tsubasa Amano, Tomota Harita, Kazuhisa Sugai, Kyohei Daigo, Yuji Iwasawa, Genki Ichihara, Hiroki Okawara, Tomonori Sawada …

  Scientific Reports 13(1) 10366-10366 2023年6月26日 査読有り
• 【ロボットリハビリテーション-最近の進歩-】慢性期脊髄再生治療との併用を見据えたrobot-assisted gait trainingの有効性と限界の検証

  大川原 洋樹, 澤田 智紀, 菅井 桂子, 尾崎 正大, 辻 収彦, 名越 慈人, 中村 雅也

  関節外科 42(5) 508-513 2023年5月
• Implications of the Onset of Sweating on the Sweat Lactate Threshold

  Yuta Maeda, Hiroki Okawara, Tomonori Sawada, Daisuke Nakashima, Joji Nagahara, Haruki Fujitsuka, Kaito Ikeda, Sosuke Hoshino, Yusuke Kobari, Yoshinori Katsumata …

  Sensors 23(7) 3378-3378 2023年3月23日 査読有り
• Constant Load Pedaling Exercise Combined with Electrical Muscle Stimulation Leads to an Early Increase in Sweat Lactate Levels

  Tomonori Sawada, Hiroki Okawara, Daisuke Nakashima, Kaito Ikeda, Joji Nagahara, Haruki Fujitsuka, Sosuke Hoshino, Yuta Maeda, Yoshinori Katsumata, Masaya Nakamura …

  Sensors 22(24) 2022年12月7日 査読有り
• Effects of alternating heat and cold stimulation using a wearable thermo-device on subjective and objective shoulder stiffness

  Tomonori Sawada, Hiroki Okawara, Daisuke Nakashima, Shuhei Iwabuchi, Morio Matsumoto, Masaya Nakamura, Takeo Nagura

  Journal of Physiological Anthropology 41(1) 1-1 2022年12月 査読有り