Electrically stimulated eccentric contraction during non-weight bearing knee bending exercise in the supine position increases oxygen uptake: A randomized, controlled, exploratory crossover trial
| Autor: | Hiroo Matsuse, Hiroshi Tajima, Sohei Iwanaga, Ryuki Hashida, Takeshi Nago, Masafumi Bekki, Eriko Higashi, Naoto Shiba |
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| Rok vydání: | 2021 |
| Předmět: |
Male
Supine position Muscle Physiology Knee Joint Physiology medicine.medical_treatment Knees Bed rest Skeletal Joints Heart Rate Supine Position Medicine and Health Sciences Medicine Eccentric Public and Occupational Health Musculoskeletal System Multidisciplinary Cross-Over Studies Muscle atrophy Sports Science Exercise Therapy Chemistry Anesthesia Strength Training Physical Sciences Legs Female medicine.symptom Anatomy Research Article Muscle Contraction Chemical Elements Adult Science Cardiology Electric Stimulation Therapy Surgical and Invasive Medical Procedures Heart rate Humans Knee Sports and Exercise Medicine Exercise Skeleton Functional Electrical Stimulation business.industry Muscle weakness Biology and Life Sciences Physical Activity Crossover study Oxygen Physical Fitness Body Limbs Exercise intensity business |
| Zdroj: | PLoS ONE PLoS ONE, Vol 16, Iss 11, p e0259856 (2021) PLoS ONE, Vol 16, Iss 11 (2021) |
| ISSN: | 1932-6203 |
| Popis: | It is well known that prolonged bed rest induces muscle weakness, muscle atrophy, cardiovascular deconditioning, bone loss, a loss of functional capacity, and the development of insulin resistance. Neuromuscular electrical stimulation is anticipated to be an interventional strategy for disuse due to bed rest. A hybrid training system (HTS), synchronized neuromuscular electrical stimulation for voluntary exercise using an articular motion sensor, may increase the exercise load though bed rest. We assessed oxygen uptake or heart rate during knee bending exercise in the supine position on a bed both simultaneously combined with HTS and without HTS to evaluate exercise intensity on different days in ten healthy subjects (8 men and 2 women) by a randomized controlled crossover trial. The values of relative oxygen uptake during knee bending exercise with HTS were significantly greater than those during knee bending exercise without HTS (7.29 ± 0.91 ml/kg/min vs. 8.29 ± 1.06 ml/kg/min; p = 0.0115). That increment with HTS was a mean of 14.42 ± 13.99%. Metabolic equivalents during knee bending exercise with HTS and without HTS were 2.08 ± 0.26 and 2.39 ± 0.30, respectively. The values of heart rate during knee bending exercise with HTS were significantly greater than those during knee bending exercise without HTS (80.82 ± 9.19 bpm vs. 86.36 ± 5.50 bpm; p = 0.0153). HTS could increase exercise load during knee bending exercise which is easy to implement on a bed. HTS might be a useful technique as a countermeasure against the disuse due to bed rest, for example during acute care or the quarantine for infection prophylaxis. |
| Databáze: | OpenAIRE |
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