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Lin HF, Chou CC, Chao HH, Wang SC, Chen CH. Acute circulatory and femoral hemodynamic responses induced by standing core exercise at different rotational cadence: a crossover study. BMC Sports Sci Med Rehabil 2022; 14:194. [PMID: 36397168 PMCID: PMC9670670 DOI: 10.1186/s13102-022-00589-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 11/10/2022] [Indexed: 11/19/2022]
Abstract
Background Core exercise is often adopted as an adjunct in maintaining musculoskeletal health in rehabilitation; we previously showed that standing core rotational exercise improves femoral blood flow after training. This study aimed to investigate the effects of different rotational cadences on circulatory and hemodynamic responses after acute standing core exercise. Methods Sixteen healthy male adults (22 ± 1 yrs) were randomly assigned to participate in two 30-min standing core exercises of fast (75 rpm, FC) and slow cadence (20 rpm, SC) sessions after completing an acute bout of seated knee extension exercise session (KE) (80% of 1 repetition maximum × 12 repetitions × 3 sets). Impedance cardiography-derived circulatory responses and femoral hemodynamics by ultrasound imaging were measured pre- and 30, and 60 min post-exercise. Results KE acutely increased post-exercise cardiac output at 30 min (p = 0.008) and heart rate at 30 min (p = 0.04) and 60 min (p = 0.01), yet brachial blood pressure did not change. Systemic vascular resistance was significantly lower after FC and KE at 30 min (p = 0.008) and 60 (p = 0.04) min, respectively, compared with the baseline. In addition, KE acutely decreased post-exercise arterial stiffness (p = 0.05) at 30 min, increased femoral conductance (p = 0.03, p < 0.001), and blood flow (p = 0.009, p < 0.001) at 30 and 60 min. No significant changes were observed in absolute femoral blood flow after FC and SC, except that FC significantly increased relative femoral blood flow (p = 0.007) and conductance (p = 0.005). Post-exercise femoral diameter significantly increased in KE at 30 (p = 0.03) and 60 min (p = 0.01), but not in core exercise. Conclusion Our results suggest that standing core exercise elicits circulatory and hemodynamic changes only when the rotational cadence is set at a faster cadence, which provides preliminary scientific evidence for its use in exercise programs.
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Affiliation(s)
- Hsin-Fu Lin
- grid.19188.390000 0004 0546 0241Department of Athletics, National Taiwan University, No. 1., Sec 4, Roosevelt Rd., Taipei, 10617 Taiwan
| | - Chun-Chung Chou
- grid.412087.80000 0001 0001 3889Office of Physical Education, National Taipei University of Technology, Taipei, Taiwan
| | - Hsiao-Han Chao
- grid.19188.390000 0004 0546 0241Department of Athletics, National Taiwan University, No. 1., Sec 4, Roosevelt Rd., Taipei, 10617 Taiwan
| | - Soun-Cheng Wang
- grid.412047.40000 0004 0532 3650Department of Athletic Sports, National Chung Cheng University, Chiayi, Taiwan
| | - Chen-Huan Chen
- grid.260539.b0000 0001 2059 7017Department of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
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Dulloo AG, Miles-Chan JL, Montani JP, Schutz Y. Isometric thermogenesis at rest and during movement: a neglected variable in energy expenditure and obesity predisposition. Obes Rev 2017; 18 Suppl 1:56-64. [PMID: 28164457 DOI: 10.1111/obr.12505] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 12/01/2016] [Indexed: 12/01/2022]
Abstract
Isometric thermogenesis as applied to human energy expenditure refers to heat production resulting from increased muscle tension. While most physical activities consist of both dynamic and static (isometric) muscle actions, the isometric component is very often essential for the optimal performance of dynamic work given its role in coordinating posture during standing, walking and most physical activities of everyday life. Over the past 75 years, there has been sporadic interest into the relevance of isometric work to thermoregulatory thermogenesis and to adaptive thermogenesis pertaining to body-weight regulation. This has been in relation to (i) a role for skeletal muscle minor tremor or microvibration - nowadays referred to as 'resting muscle mechanical activity' - in maintaining body temperature in response to mild cooling; (ii) a role for slowed skeletal muscle isometric contraction-relaxation cycle as a mechanism for energy conservation in response to caloric restriction and weight loss and (iii) a role for spontaneous physical activity (which is contributed importantly by isometric work for posture maintenance and fidgeting behaviours) in adaptive thermogenesis pertaining to weight regulation. This paper reviews the evidence underlying these proposed roles for isometric work in adaptive thermogenesis and highlights the contention that variability in this neglected component of energy expenditure could contribute to human predisposition to obesity.
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Affiliation(s)
- A G Dulloo
- Department of Medicine, Division of Physiology, University of Fribourg, Fribourg, Switzerland
| | - J L Miles-Chan
- Department of Medicine, Division of Physiology, University of Fribourg, Fribourg, Switzerland
| | - J-P Montani
- Department of Medicine, Division of Physiology, University of Fribourg, Fribourg, Switzerland
| | - Y Schutz
- Department of Medicine, Division of Physiology, University of Fribourg, Fribourg, Switzerland
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Wages NP, Beck TW, Ye X, Carr JC. Unilateral fatiguing exercise and its effect on ipsilateral and contralateral resting mechanomyographic mean frequency between aerobic populations. Physiol Rep 2017; 5:e13151. [PMID: 28242828 PMCID: PMC5328779 DOI: 10.14814/phy2.13151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/19/2016] [Accepted: 12/23/2016] [Indexed: 11/24/2022] Open
Abstract
The purpose of this investigation was to establish a better understanding of contralateral training and its effects between homologous muscles following unilateral fatiguing aerobic exercise during variable resting postural positions, and to determine if any observable disparities could be attributed to the differences between the training ages of the participants. Furthermore, we hypothesized that we would observe a contralateral cross-over effect for both groups, with the novice trained group having the higher mechanomyographic mean frequency values in both limbs, across all resting postural positions. Twenty healthy male subjects exercised on an upright cycle ergometer, using only their dominate limb, for 30 min at 60% of their VO2 peak. Resting electromyographic and mechanomyographic signals were measured prior to and following fatiguing aerobic exercise. We found that there were resting mechanomyographic mean frequency differences of approximately 1.9 ± 0.8% and 0.9 ± 0.7%; 9.1 ± 0.3% and 10.2 ± 3.7%; 2 ± 1.8% and 3 ± 1.4%; and 0.9 ± 0.6% and 0.2 ± 1.3% between the novice and advanced trained groups (for the upright sitting position with legs extended 180°; upright sitting position with legs bent 90°; lying supine position with legs extended 180°; and lying supine with legs bent 90°, respectively), from the dominant and nondominant limbs, respectively. We have concluded that despite the relative matching of exercise intensity between groups, acute responses to contralateral training become less accentuated as one progresses in training age. Additionally, our results lend support to the notion that there are multiple, overlapping neural and mechanical mechanisms concurrently contributing to the contralateral cross-over effects observed across the postexercise resting time course.
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Affiliation(s)
- Nathan P Wages
- Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma
| | - Travis W Beck
- Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma
| | - Xin Ye
- Department of Health, Exercise Science and Recreation Management, University of Mississippi, University, Mississippi
| | - Joshua C Carr
- Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma
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Wages NP, Beck TW, Ye X, Carr JC. Examination of a neural cross-over effect using resting mechanomyographic mean frequency from the vastus lateralis muscle in different resting positions following aerobic exercise. Eur J Appl Physiol 2016; 116:919-29. [PMID: 26970952 DOI: 10.1007/s00421-016-3351-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/01/2016] [Indexed: 11/27/2022]
Abstract
PURPOSE To evaluate the potential neural cross-over effect between the vastus lateralis muscles in different postural resting positions. METHODS Subjects exercised on an upright cycle ergometer, using only their dominate leg, for 2 min at 30 % VO2 peak. Following this warm-up, subjects then cycled (still using only their dominant leg) for 30 min at 60 % VO2 peak. After the aerobic phase, subjects cooled down (again, using only their dominant leg) for 2 min at 30 % VO2 peak. Resting mechanomyography mean frequency was measured prior to and following aerobic exercise. RESULTS There was an approximate 6.3 ± 6.8 and a 10 ± 5.1 % increase (upright sitting position with the subject's knee joint angle fixed at 180°); an approximate 7 ± 6.6 and a 16.1 ± 6.5 % increase (upright sitting position with the subject's knee joint angle fixed at 90°); an approximate 0.5 ± 6.8 and 3.7 ± 5.6 % increase (lying supine position with the subject's knee joint angle fixed at 180°); and an approximately 2 ± 8.3 and 2.5 ± 8.6 % increase (lying supine position with the subject's knee joint angle fixed at 90°) in normalized mechanomyography mean frequency after aerobic exercise for the dominant and non-dominate vastus lateralis muscles, respectfully. CONCLUSION There appears to be a statistically significant neural cross-over effect for the vastus lateralis muscle, during three of the four postural resting positions, with the non-dominant vastus lateralis muscle having a greater increase in mechanomyography mean frequency.
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Affiliation(s)
- Nathan P Wages
- Department of Health and Exercise Science, University of Oklahoma, 1401 Asp Avenue, Room 104, Norman, OK, 73019, USA.
| | - Travis W Beck
- Department of Health and Exercise Science, University of Oklahoma, 1401 Asp Avenue, Room 104, Norman, OK, 73019, USA
| | - Xin Ye
- Department of Health and Exercise Science, University of Oklahoma, 1401 Asp Avenue, Room 104, Norman, OK, 73019, USA
| | - Joshua C Carr
- Department of Health and Exercise Science, University of Oklahoma, 1401 Asp Avenue, Room 104, Norman, OK, 73019, USA
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Wages NP, Beck TW, Ye X, Hofford CW. Examination of the resting mechanomyographic mean frequency responses for the postural tonus muscles following resistance exercise. Biomed Phys Eng Express 2016. [DOI: 10.1088/2057-1976/2/1/015002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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McKay WP. Comment on: 'Resting mechanomyographic amplitude for the erector spinae and trapezius muscles following resistance exercise in a healthy population'. Physiol Meas 2015; 36:2537-8. [PMID: 26595544 DOI: 10.1088/0967-3334/36/12/2537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- William P McKay
- Department of Anesthesia, RUH, 103 Hospital Drive, Saskatoon SK, S7N 0W8, Canada
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Wages NP, Beck TW, Ye X, Hofford CW. Resting mechanomyographic amplitude for the erector spinae and trapezius muscles following resistance exercise in a healthy population. Physiol Meas 2013; 34:1343-50. [PMID: 24045398 DOI: 10.1088/0967-3334/34/10/1343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Musculoskeletal disorders are some of the most commonly occurring chronic conditions affecting the US population, with the most self-reported and diagnosed disorder being low back pain. Low back pain is often due to suboptimal back muscle function, at least in part, as a result of muscle inactivity and disuse. Resistance exercise has been shown to be successful in the treatment of low back pain. The purpose of the present investigation was to examine resting mechanomyographic (MMG) amplitude for the erector spinae and trapezius muscles prior to and following resistance exercise. Twenty healthy, college-aged men were measured for resting MMG amplitude levels prior to, and following a resistance training workout. The workout consisted of three sets of ten repetitions on the conventional deadlift, bent-over row, and lat pulldown exercises, with 1 min of rest between all sets and exercises. The results showed that there were approximate 10% and 15% decreases in normalized MMG amplitude after exercise for the erector spinae and trapezius muscles, respectively. These findings demonstrate a relaxation effect in the back muscles after exercise that could potentially be helpful in alleviating low back pain.
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Affiliation(s)
- Nathan P Wages
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
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Islam MA, Sundaraj K, Ahmad RB, Ahamed NU. Mechanomyogram for muscle function assessment: a review. PLoS One 2013; 8:e58902. [PMID: 23536834 PMCID: PMC3594217 DOI: 10.1371/journal.pone.0058902] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 02/08/2013] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Mechanomyography (MMG) has been extensively applied in clinical and experimental practice to examine muscle characteristics including muscle function (MF), prosthesis and/or switch control, signal processing, physiological exercise, and medical rehabilitation. Despite several existing MMG studies of MF, there has not yet been a review of these. This study aimed to determine the current status on the use of MMG in measuring the conditions of MFs. METHODOLOGY/PRINCIPAL FINDINGS Five electronic databases were extensively searched for potentially eligible studies published between 2003 and 2012. Two authors independently assessed selected articles using an MS-Word based form created for this review. Several domains (name of muscle, study type, sensor type, subject's types, muscle contraction, measured parameters, frequency range, hardware and software, signal processing and statistical analysis, results, applications, authors' conclusions and recommendations for future work) were extracted for further analysis. From a total of 2184 citations 119 were selected for full-text evaluation and 36 studies of MFs were identified. The systematic results find sufficient evidence that MMG may be used for assessing muscle fatigue, strength, and balance. This review also provides reason to believe that MMG may be used to examine muscle actions during movements and for monitoring muscle activities under various types of exercise paradigms. CONCLUSIONS/SIGNIFICANCE Overall judging from the increasing number of articles in recent years, this review reports sufficient evidence that MMG is increasingly being used in different aspects of MF. Thus, MMG may be applied as a useful tool to examine diverse conditions of muscle activity. However, the existing studies which examined MMG for MFs were confined to a small sample size of healthy population. Therefore, future work is needed to investigate MMG, in examining MFs between a sufficient number of healthy subjects and neuromuscular patients.
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Affiliation(s)
- Md Anamul Islam
- AI-Rehab Research Group, Universiti Malaysia Perlis (UniMAP), Kompleks Pauh Putra, Arau, Perlis, Malaysia.
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McKay WP, Vargo M, Chilibeck PD, Daku BL. Effects of ambient temperature on mechanomyography of resting quadriceps muscle. Appl Physiol Nutr Metab 2013; 38:227-33. [DOI: 10.1139/apnm-2011-0358] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
It has been speculated that resting muscle mechanical activity, also known as minor tremor, microvibration, and thermoregulatory tonus, has evolved to maintain core temperature in homeotherms, and may play a role in nonshivering thermogenesis. This experiment was done to determine whether resting muscle mechanical activity increases with decreasing ambient temperature. We cooled 20 healthy, human, resting, supine subjects from an ambient temperature of 40° to 12 °C over 65 min. Core temperature, midquadriceps mechanomyography, surface electromyography, and oxygen consumption ([Formula: see text]O2) were recorded. Resting muscle mechanical and electrical activity in the absence of shivering increased significantly at temperatures below 21.5 °C. Women defended core temperature more effectively than men, and showed increased resting muscle activity earlier than men. Metabolism measured by [Formula: see text]O2 correlated with resting muscle mechanical activity (R = 0.65; p = 0.01). Resting muscle mechanical activity may have evolved, in part, to maintain core temperature in the face of mild cooling.
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Affiliation(s)
- William P. McKay
- Department of Anesthesia, RUH, 103 Hospital Drive, University of Saskatchewan, Saskatoon, SK S7N 5A2, Canada
| | - Michael Vargo
- Department of Anesthesia, RUH, 103 Hospital Drive, University of Saskatchewan, Saskatoon, SK S7N 5A2, Canada
| | - Philip D. Chilibeck
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK S7N 5A2, Canada
| | - Brian L. Daku
- Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A2, Canada
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Kawamoto T, Yamazaki N. Bulk movement included in multi-channel mechanomyography: similarity between mechanomyography of resting muscle and that of contracting muscle. J Electromyogr Kinesiol 2012; 22:923-9. [PMID: 22583738 DOI: 10.1016/j.jelekin.2012.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Revised: 01/24/2012] [Accepted: 03/06/2012] [Indexed: 10/28/2022] Open
Abstract
Although mechanomyography (MMG) reflects local vibrations from contracting muscle fibers, it also includes bulk movement: deformation in global soft tissue around measuring points. To distinguish between them, we compared the multi-channel MMG of resting muscle, which dominantly reflected the bulk movement caused by arterial pulsations, to that of the contracting muscle. The MMG signals were measured at five points around the upper arms of 10 male subjects during resting and during isometric ramp contraction from 5% to 85% of maximal voluntary contraction (MVC) of the biceps brachii muscle. The characteristics of bulk movement were defined as the amplitude distribution and phase relation among the five MMG signals. The bulk movement characteristics during the rest state were not necessarily the same among the subjects. However, below 30 Hz, each subject's characteristics remained the same from the rest state (0% MVC) to the contracting state (80% MVC), at which the bulk movement mainly originates from muscle contraction activity. Results show that the MMG of the low frequency domain (<30 Hz) includes bulk movement depending on the mechanical deformation characteristics of each subject's body, for a wide range of muscle contraction intensities.
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Affiliation(s)
- Takashi Kawamoto
- Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Japan
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McKay WP, Lett B, Chilibeck PD, Daku BL. Effects of spinal anesthesia on resting metabolic rate and quadriceps mechanomyography. Eur J Appl Physiol 2009; 106:583-8. [DOI: 10.1007/s00421-009-1054-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2009] [Indexed: 10/20/2022]
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Beck TW, Housh TJ, Fry AC, Cramer JT, Weir JP, Schilling BK, Falvo MJ, Moore CA. A wavelet-based analysis of surface mechanomyographic signals from the quadriceps femoris. Muscle Nerve 2009; 39:355-63. [DOI: 10.1002/mus.21208] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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McKay W, Chilibeck P, Daku B. Effects of spinal anesthesia on resting metabolic rate. Can J Anaesth 2008. [DOI: 10.1007/bf03016393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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