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Mang ZA, Moriarty TA, Realzola RA, Millender DJ, Wells AD, Houck JM, Bellissimo GF, Fennel ZJ, Beam JR, Mermier CM, Amorim FT, Kravitz L. A Metabolic Profile of Peripheral Heart Action Training. Res Q Exerc Sport 2022; 93:412-422. [PMID: 34252341 DOI: 10.1080/02701367.2020.1856315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/17/2020] [Indexed: 06/13/2023]
Abstract
Purpose: Peripheral heart action (PHA) is a style of circuit training that alternates upper and lower body resistance exercises with minimal rest between sets. The purpose of this study was to compare the metabolic demands of PHA to traditional hypertrophy training (TRAD) and to provide between sex comparison for both types of resistance training (RT). Methods: Twenty resistance-trained individuals underwent two bouts of volume-load matched RT: PHA and TRAD. We measured oxygen uptake (VO2), heart rate (HR), blood lactate (BL) concentration, rating of perceived exertion (RPE), excess post-exercise oxygen consumption (EPOC), and duration of each session. Results: PHA elicited significantly greater %VO2max (p < .001), %HRmax (p < .001), RPE (p < .001), and EPOC (p < .001) compared to TRAD. PHA was also completed in less time (p < .001). Compared to TRAD, BL was significantly higher at mid-exercise (p < .001), post-exercise (p < .001), and 5-min post-exercise (p < .001) during PHA. There were no between-sex differences for BL at any time-point for TRAD. However, during PHA, BL was significantly higher for males at mid-exercise (p = .04), post-exercise (p = .02), and 5-min post-exercise (p = .002). No between-sex differences were detected for HR, VO2, RPE, or duration for either style of RT. Conclusions: PHA is a time-effective and metabolically demanding circuit that may lead to strength and cardiorespiratory adaptations. Males produced more BL than females during PHA, but not TRAD, suggesting that they incurred more metabolic stress during the bout of circuit training.
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Saeidi A, Shishvan SR, Soltani M, Tarazi F, Doyle-Baker PK, Shahrbanian S, Mollabashi SS, Khosravi N, Laher I, Moriarty TA, Johnson KE, VanDusseldorp TA, Zouhal H. Differential Effects of Exercise Programs on Neuregulin 4, Body Composition and Cardiometabolic Risk Factors in Men With Obesity. Front Physiol 2022; 12:797574. [PMID: 35197860 PMCID: PMC8859436 DOI: 10.3389/fphys.2021.797574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/22/2021] [Indexed: 01/02/2023] Open
Abstract
BackgroundNeuregulin 4 (Nrg4) is an adipokine that is sensitive to energy expenditure and with a potential role in metabolic homeostasis and obesity. This study examined the effects of 12 weeks of three different exercise training protocols on Nrg4 levels, cardiometabolic risk factors, and body composition parameters in men with obesity.MethodsSixty adult men with obesity (Mean ± SD; age: 27.60 ± 8.4 yrs.; height: 168.4 ± 2.6 cm; weight: 96.7 ± 7.2 kg) were randomly allocated into four equal (n = 15) groups: High- Intensity Interval Training (HIIT), Circuit Resistance Training (CRT), Moderate Intensity Continuous Training (MICT) or a control group. The HIIT protocol involved six bouts of 3-min high-intensity exercise (90% VO2peak) followed by 3-min low-intensity exercise (50% VO2peak). The CRT group performed three circuits of resistance training, where each circuit included 11 exercises at 20% of one-repetition maximum (1RM) and 70% of VO2peak, and with a work-to-rest ratio of 2:1 (40-s exercise and 20-s rest) and 60-s recovery between circuits. The MICT group performed 36 min of exercise at 70% of VO2peak. All measurements were taken 72 h before and after the first and last training sessions.ResultsThere were significant differences between the groups in fat-free mass (FFM), (effect size (ES): 0.78), fat mass (ES: 0.86), VO2peak (ES: 0.59), high-density lipoprotein cholesterol (HDL-C) (ES: 0.83), low-density lipoprotein (LDL-C) (ES: 0.79), total cholesterol (TC) (ES: 0.90), triglyceride (TG) (ES: 0.52) glucose (ES: 0.39), insulin (ES: 0.61), HOM-IR (ES: 0.91) and Nrg4 (ES: 0.98) (p < 0.05). There were no significant changes in very-low-density lipoprotein cholesterol (VLDL-C) (ES: 0.13) levels, or body weights (ES: 0.51) (p > 0.05). Levels of Nrg4 were negatively correlated with LDL-C, TC, TG, VLDL-C, glucose, insulin, HOMA-IR (p < 0.05) and positively with HDL-C (p < 0.05).ConclusionOur results suggest that HIIT and CRT protocols have greater effects than MICT protocol on Nrg4 levels, metabolic and cardiovascular risk factors, and body composition variables in men with obesity.
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Affiliation(s)
- Ayoub Saeidi
- Department of Physical Education and Sport Sciences, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, Iran
| | - Sevda R. Shishvan
- Department of Physical Education and Sport Science, Islamic Azad University, Tehran, Iran
| | - Mohammad Soltani
- Department of Biological Sciences in Sport, Faculty of Sports Sciences and Health, Shahid Beheshti University, Tehran, Iran
| | - Fatemeh Tarazi
- Department of Exercise Physiology, Faculty of Physical Education, Alzahra University, Tehran, Iran
| | | | - Shahnaz Shahrbanian
- Department of Sports Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
| | | | - Nikoo Khosravi
- Department of Exercise Physiology, Faculty of Physical Education, Alzahra University, Tehran, Iran
| | - Ismail Laher
- Department of Anesthesiology, Pharmacology and Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Terence A. Moriarty
- Department of Exercise and Sport Science, Coastal Carolina University, Conway, SC, United States
| | - Kelly E. Johnson
- Department of Exercise and Sport Science, Coastal Carolina University, Myrtle Beach, SC, United States
| | - Trisha A. VanDusseldorp
- Department of Exercise & Sport Management, Kennesaw State University, Kennesaw, GA, United States
- *Correspondence: Trisha A. VanDusseldorp,
| | - Hassane Zouhal
- Laboratoire Mouvement, Sport, Santé – EA 1274, University Rennes, Rennes, France
- Institut International des Sciences du Sport, Iroduer, France
- Hassane Zouhal,
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Bourbeau KC, Moriarty TA, Bellovary BN, Bellissimo GF, Ducharme JB, Haeny TJ, Zuhl MN. Cardiovascular, Cellular, and Neural Adaptations to Hot Yoga versus Normal-Temperature Yoga. Int J Yoga 2021; 14:115-126. [PMID: 34188383 PMCID: PMC8191229 DOI: 10.4103/ijoy.ijoy_134_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/28/2021] [Accepted: 03/25/2021] [Indexed: 11/25/2022] Open
Abstract
CONTEXT Chronic heat exposure promotes cardiovascular and cellular adaptations, improving an organism's ability to tolerate subsequent stressors. Heat exposure may also promote neural adaptations and alter the neural-hormonal stress response. Hot-temperature yoga (HY) combines mind-body exercise with heat exposure. The added heat component in HY may induce cardiovascular and cellular changes, along with neural benefits and modulation of stress hormones. AIMS The purpose of the present study is to compare the cardiovascular, cellular heat shock protein 70 (HSP70), neural, and hormonal adaptations of HY versus normal-temperature yoga (NY). SETTINGS AND DESIGN Twenty-two subjects (males = 11 and females = 11, 26 ± 6 years) completed 4 weeks of NY (n = 11) or HY (n = 11, 41°C, 40% humidity). Yoga sessions were performed 3 times/week following a modified Bikram protocol. SUBJECTS AND METHODS Pre- and posttesting included (1) hemodynamic measures during a heat tolerance test and maximal aerobic fitness test; (2) neural and hormonal adaptations using serum brain-derived neurotrophic factor (BDNF) and adrenocorticotropic hormone (ACTH), along with a mental stress questionnaire; and (3) cellular adaptations (HSP70) in peripheral blood mononuclear cells (PBMCs). STATISTICAL ANALYSIS Within- and between-group Student's t-test analyses were conducted to compare pre- and post-VO2 max, perceived stress, BDNF, HSP70, and ACTH in HY and NY groups. RESULTS Maximal aerobic fitness increased in the HY group only. No evidence of heat acclimation or change in mental stress was observed. Serum BDNF significantly increased in yoga groups combined. Analysis of HSP70 suggested higher expression of HSP70 in the HY group only. CONCLUSIONS Twelve sessions of HY promoted cardiovascular fitness and cellular thermotolerance adaptations. Serum BDNF increased in response to yoga (NY + HY) and appeared to not be temperature dependent.
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Affiliation(s)
- Kelsey Christian Bourbeau
- Department of Kinesiology, University of Northern Iowa, Cedar Falls, Iowa, USA
- Department of Health, Exercise and Sports Science, University of New Mexico, Albuquerque, NM, USA
| | - Terence A Moriarty
- Department of Kinesiology, University of Northern Iowa, Cedar Falls, Iowa, USA
| | | | - Gabriella F Bellissimo
- Department of Kinesiology, State University of New York College at Cortland, Cortland, NY, USA
| | - Jeremy B Ducharme
- Department of Health, Exercise and Sports Science, University of New Mexico, Albuquerque, NM, USA
| | - Truman J Haeny
- Department of Health, Exercise and Sports Science, University of New Mexico, Albuquerque, NM, USA
| | - Micah N Zuhl
- School of Health Sciences, Central Michigan University, Mount Pleasant, Michigan, USA
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Nuñez TP, Amorim FT, Beltz NM, Mermier CM, Moriarty TA, Nava RC, VanDusseldorp TA, Kravitz L. Reply to "Programming may matter most." Response to "Metabolic effects of two high-intensity circuit training protocols: Does sequence matter?". J Exerc Sci Fit 2020; 19:49-50. [PMID: 33204282 PMCID: PMC7649493 DOI: 10.1016/j.jesf.2020.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Tony P Nuñez
- Human Performance and Sport, Metropolitan State University of Denver, Denver, CO, USA
| | - Fabiano T Amorim
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Nicholas M Beltz
- Department of Kinesiology, University of Wisconsin-Eau Claire, Eau Claire, WI, USA
| | - Christine M Mermier
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Terence A Moriarty
- Department of Kinesiology, University of Northern Iowa, Cedar Falls, IA, USA
| | - Roberto C Nava
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Trisha A VanDusseldorp
- Department of Exercise Science & Sport Management, Kennesaw State University, Kennesaw, GA, USA
| | - Len Kravitz
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
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Moriarty TA, Bourbeau K, Mermier C, Kravitz L, Gibson A, Beltz N, Negrete O, Zuhl M. Exercise-Based Cardiac Rehabilitation Improves Cognitive Function Among Patients With Cardiovascular Disease. J Cardiopulm Rehabil Prev 2020; 40:407-413. [PMID: 32947322 DOI: 10.1097/hcr.0000000000000545] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE To investigate the effects of cardiac rehabilitation (CR) exercise training on cognitive performance and whether the changes are associated with alterations in prefrontal cortex (PFC) oxygenation among patients with cardiovascular disease. METHODS Twenty (men: n = 15; women: n = 5) participants from an outpatient CR program were enrolled in the study. Each participant completed a cognitive performance test battery and a submaximal graded treadmill evaluation on separate occasions prior to and again upon completion of 18 individualized CR sessions. A functional near-infrared spectroscopy (fNIRS) device was used to measure left and right prefrontal cortex (LPFC and RPFC) oxygenation parameters (oxyhemoglobin [O2Hb], deoxyhemoglobin [HHb], total hemoglobin [tHb], and oxyhemoglobin difference [Hbdiff]) during the cognitive test battery. RESULTS Patients showed improvements in cardiorespiratory fitness (+1.4 metabolic equivalents [METs]) and various cognitive constructs. A significant increase in PFC oxygenation, primarily in the LPFC region, occurred at post-CR testing. Negative associations between changes in cognition (executive function [LPFC O2Hb: r = -0.45, P = .049; LPFC tHb: r = -0.49, P = .030] and fluid composite score [RPFC Hbdiff: r = -0.47, P = .038; LPFC Hbdiff: r = -0.45, P = .048]) and PFC changes were detected. The change in cardiorespiratory fitness was positively associated with the change in working memory score (r = 0.55, P = .016). CONCLUSION Cardiovascular disease patients enrolled in CR showed significant improvements in multiple cognitive domains along with increased cortical activation. The negative associations between cognitive functioning and PFC oxygenation suggest an improved neural efficiency.
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Affiliation(s)
- Terence A Moriarty
- Department of Health, Exercise, and Sport Science, University of New Mexico, Albuquerque (Drs Moriarty, Mermier, Kravitz, Gibson, and Zuhl and Ms Bourbeau); Department of Kinesiology, University of Northern Iowa, Cedar Falls (Dr Moriarty); Department of Kinesiology, University of Wisconsin-Eau Claire (Dr Beltz); New Heart Center for Wellness, Fitness and Cardiac Rehabilitation, Albuquerque, New Mexico (Mr Negrete); and School of Health Sciences, Central Michigan University, Mount Pleasant (Dr Zuhl)
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Escobar KA, Welch AM, Wells A, Fennel Z, Nava R, Li Z, Moriarty TA, Nitta CH, Zuhl MN, VanDusseldorp TA, Mermier CM, Amorim FT. Autophagy Response To High-intensity Interval Exercise And Moderate-intensity Continuous Exercise Is Dissimilar In Skeletal Muscle And Peripheral Blood Mononuclear Cells. Med Sci Sports Exerc 2020. [DOI: 10.1249/01.mss.0000685500.08809.70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Moriarty TA, Mermier C, Kravitz L, Gibson A, Beltz N, Zuhl M. Acute Aerobic Exercise Based Cognitive and Motor Priming: Practical Applications and Mechanisms. Front Psychol 2019; 10:2790. [PMID: 31920835 PMCID: PMC6920172 DOI: 10.3389/fpsyg.2019.02790] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/27/2019] [Indexed: 12/12/2022] Open
Abstract
Acute exercise stimulates brain regions involved in motor and cognitive processes. Recent research efforts have explored the benefits of aerobic exercise on brain health and cognitive functioning with positive results reported for both healthy and neurocognitively impaired individuals. Specifically, exercise positioned near therapeutic (both behavioral and physical) activities may enhance outcomes associated with treatment outcomes (e.g., depression or motor skill) through neural plasticity promoting mechanisms (e.g., increased brain flow and oxygenation). This approach has been termed "exercise priming" and is a relatively new topic of exploration in the fields of exercise science and motor control. The authors report on physiological mechanisms that are related to the priming effect. In addition, parameters related to the exercise bout (e.g., intensity, duration) and the idea of combining exercise and therapeutic rehabilitation are explored. This exercise-based priming concept has the potential to be applied to many areas such as education, cognitive therapy, and motor rehabilitation.
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Affiliation(s)
- Terence A Moriarty
- Department of Health, Exercise, and Sports Sciences, The University of New Mexico, Albuquerque, NM, United States.,Department of Kinesiology, University of Northern Iowa, Cedar Falls, IA, United States
| | - Christine Mermier
- Department of Health, Exercise, and Sports Sciences, The University of New Mexico, Albuquerque, NM, United States
| | - Len Kravitz
- Department of Health, Exercise, and Sports Sciences, The University of New Mexico, Albuquerque, NM, United States
| | - Ann Gibson
- Department of Health, Exercise, and Sports Sciences, The University of New Mexico, Albuquerque, NM, United States
| | - Nicholas Beltz
- Department of Kinesiology, University of Wisconsin-Eau Claire, Eau Claire, WI, United States
| | - Micah Zuhl
- Department of Health, Exercise, and Sports Sciences, The University of New Mexico, Albuquerque, NM, United States.,School of Health Sciences, Central Michigan University, Mount Pleasant, MI, United States
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Nuñez TP, Amorim FT, Beltz NM, Mermier CM, Moriarty TA, Nava RC, VanDusseldorp TA, Kravitz L. Metabolic effects of two high-intensity circuit training protocols: Does sequence matter? J Exerc Sci Fit 2019; 18:14-20. [PMID: 31641363 PMCID: PMC6796641 DOI: 10.1016/j.jesf.2019.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 07/25/2019] [Accepted: 08/07/2019] [Indexed: 12/20/2022] Open
Abstract
Background/objective The integration of high-intensity interval training (HIIT) and circuit weight training (CWT) is seamless and practical for meeting recommended exercise guidelines. The purpose of this study was to determine the ideal combination of HIIT and CWT to elicit desired acute cardiorespiratory and metabolic responses in variables such as energy expenditure (EE), oxygen consumption (VO2), heart rate (HR), blood lactate (BLa-), excess post-exercise oxygen consumption (EPOC), rating of perceived exertion (RPE), and enjoyment. Methods Fourteen trained males (25.7 ± 4.4 yr) completed two exercise protocols matched for volume and recovery periods. On one day, participants performed six HIIT bouts prior to three rounds of a nine exercise CWT protocol (HIC). The second day (separated by ≥ 72 h) consisted of three rounds of three mini-circuits (three exercises per circuit) integrated with three HIIT bouts between the first and second and second and third mini-circuits (TRI). VO2, HR, and EE were monitored throughout both protocols. EPOC for a 20-min duration, [BLa-] (five time points), RPE, and enjoyment were measured post-exercise. Results Energy expenditure was significantly higher during the HIC compared to the TRI protocol (p = .012), as well as EPOC (p = .034). [BLa-] was significantly greater immediate-, 5min-, 10min- and 20min-post-exercise following HIC as compared to TRI. Mean values for HIC and TRI were similar (p > .05) for HR and RPE. Conclusion Performing HIIT prior to CWT elicits a higher metabolic perturbation compared to the TRI protocol. Although a significant EE difference was detected between the two trials, the practical difference (∼20 kcal) between protocols indicates both protocols are similarly effective for caloric expenditure, metabolic and cardiorespiratory response.
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Affiliation(s)
- Tony P Nuñez
- Human Performance and Sport, Metropolitan State University of Denver, Denver, CO, USA
| | - Fabiano T Amorim
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Nicholas M Beltz
- Department of Kinesiology, University of Wisconsin-Eau Claire, Eau Claire, WI, USA
| | - Christine M Mermier
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Terence A Moriarty
- Department of Kinesiology, University of Northern Iowa, Cedar Falls, IA, USA
| | - Roberto C Nava
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Trisha A VanDusseldorp
- Department of Exercise Science & Sport Management, Kennesaw State University, Kennesaw, GA, USA
| | - Len Kravitz
- Health, Exercise and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
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Escobar KA, Welch AM, Wells A, Fennel Z, Li Z, Moriarty TA, Martinez K, Marrello J, Nitta CH, Zuhl MN, VanDusseldorp TA, Mermier CM, Amorim FT. Autophagy is Stimulated by Acute High-Intensity Interval Training Exercise in Human Skeletal Muscle. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000561990.29320.b6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Feito Y, Moriarty TA, Mangine G, Monahan J. The use of a smart-textile garment during high-intensity functional training: a pilot study. J Sports Med Phys Fitness 2018; 59:947-954. [PMID: 30024125 DOI: 10.23736/s0022-4707.18.08689-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Wearable devices are common in the health and fitness industry and provide valuable information to improve and achieve fitness goals. The Hexoskin shirt (Hx) is one such device that has been shown to be valid and reliable. The purpose of this pilot study was to compare the Hx to established methods during a maximal graded exercise test (TM) and a high-intensity functional training (HIFT) session. METHODS Ten healthy individuals (31.0±7.6 years, 76.4±11.4 kg; 1.7±0.1 m) volunteered for this study and completed a TM and a HIFT exercise session. During both testing sessions, respiratory measures (respiratory rate [RR], and respiratory volume [RV]) were assessed using a portable metabolic system (Cosmed K4b2; K4), and heart rate (HR) was determined via ECG in a standard 12-lead configuration. The Hx was worn during both sessions. RESULTS During TM, a 4% difference was noted for HR during cool down, while exercising HR and RV, along with RR during cool down were all under 10%. During HIFT, HR at rest and cool down, as well as RR during exercise were less than 10%. The variation between technologies for the remaining variables ranged between 12.3-39.9% and 10.9-41.1% for TM and HIFT, respectively. CONCLUSIONS The Hx smart garment may be utilized to provide select cardiorespiratory data in a TM and HIFT session. We recommend that the validity and reliability be fully established before the Hx smart garment is entirely utilized for all cardiorespiratory data and research purposes in a field-based environment.
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Affiliation(s)
- Yuri Feito
- Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA, USA -
| | - Terence A Moriarty
- Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Gerald Mangine
- Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA, USA
| | - Jessica Monahan
- Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA, USA
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Nunez TP, Amorim FT, Beltz NM, Mermier CM, Moriarty TA, Nava RC, VanDusseldorp TA, Kravitz L. Metabolic Effects of Two Novel High-Intensity Circuit Training Protocols. Med Sci Sports Exerc 2018. [DOI: 10.1249/01.mss.0000535543.51513.5d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Moriarty TA, Feito Y, Monahan J, Williamson C. Using the Hexoskin Smart Garment to Measure Cardiorespiratory Variables During High Intensity Functional Training. Med Sci Sports Exerc 2018. [DOI: 10.1249/01.mss.0000538220.84744.cc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Beltz N, Amorim FT, Gibson AL, Janot JM, Kravitz L, Mermier CM, Cole N, Moriarty TA, Nunez TP, Trigg S, Dalleck LC. Hemodynamic and Metabolic Responses to Self-Paced and Ramp Graded Exercise Protocols. Med Sci Sports Exerc 2018. [DOI: 10.1249/01.mss.0000537110.01255.ba] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Beltz NM, Amorim FT, Gibson AL, Janot JM, Kravitz L, Mermier CM, Cole N, Moriarty TA, Nunez TP, Trigg S, Dalleck LC. Hemodynamic and metabolic responses to self-paced and ramp-graded exercise testing protocols. Appl Physiol Nutr Metab 2018; 43:609-616. [PMID: 29334615 DOI: 10.1139/apnm-2017-0608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent examinations have shown lower maximal oxygen consumption during traditional ramp (RAMP) compared with self-paced (SPV) graded exercise testing (GXT) attributed to differences in cardiac output. The current study examined the differences in hemodynamic and metabolic responses between RAMP and SPV during treadmill exercise. Sixteen recreationally trained men (aged23.7 ± 3.0 years) completed 2 separate treadmill GXT protocols. SPV consisted of five 2-min stages (10 min total) of increasing speed clamped by the Borg RPE6-20 scale. RAMP increased speed by 0.16 km/h every 15 s until volitional exhaustion. All testing was performed at 3% incline. Oxygen consumption was measured via indirect calorimetry; hemodynamic function was measured via thoracic impedance and blood lactate (BLa-) was measured via portable lactate analyzer. Differences between SPV and RAMP protocols were analyzed as group means by using paired-samples t tests (R Core Team 2017). Maximal values for SPV and RAMP were similar (p > 0.05) for oxygen uptake (47.1 ± 3.4 vs. 47.4 ± 3.4 mL·kg-1·min-1), heart rate (198 ± 5 vs. 200 ± 6 beats·min-1), ventilation (158.8 ± 20.7 vs. 159.3 ± 19.0 L·min-1), cardiac output (26.9 ± 5.5 vs. 27.9 ± 4.2 L·min-1), stroke volume (SV) (145.9 ± 29.2 vs. 149.8 ± 25.3 mL·beat-1), arteriovenous oxygen difference (18.5 ± 3.1 vs. 19.7 ± 3.1 mL·dL-1), ventilatory threshold (VT) (78.2 ± 7.2 vs. 79.0% ± 7.6%), and peak BLa- (11.7 ± 2.3 vs. 11.5 ± 2.4 mmol·L-1), respectively. In conclusion, SPV elicits similar maximal hemodynamic responses in comparison to RAMP; however, SV kinetics exhibited unique characteristics based on protocol. These results support SPV as a feasible GXT protocol to identify useful fitness parameters (maximal oxygen uptake, oxygen uptake kinetics, and VT).
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Affiliation(s)
- Nicholas M Beltz
- a Department of Kinesiology, University of Wisconsin-Eau Claire, Eau Claire, WI 54701, USA
| | - Fabiano T Amorim
- b Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Ann L Gibson
- b Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Jeffrey M Janot
- a Department of Kinesiology, University of Wisconsin-Eau Claire, Eau Claire, WI 54701, USA
| | - Len Kravitz
- b Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Christine M Mermier
- b Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Nathan Cole
- b Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Terence A Moriarty
- b Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Tony P Nunez
- c Department of Human Performance and Sport, Metropolitan State University of Denver, Denver, CO 80204, USA
| | - Sam Trigg
- b Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Lance C Dalleck
- d Recreation, Exercise & Sports Science Department, Western State Colorado University, Gunnison, CO, USA
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Moriarty TA, Escobar KA, Nunez TP, Kravitz L, Gibson AL. Cardiovascular and Metabolic Responses of High Intensity Sprint Protocols on an Elliptical Cross Trainer. Med Sci Sports Exerc 2017. [DOI: 10.1249/01.mss.0000517624.71519.d3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nunez TP, Moriarty TA, Escobar KA, Kravitz L, Gibson AL. Sex Specific Cardiovascular And Metabolic Responses To High-intensity Exercise On An Elliptical Cross-trainer. Med Sci Sports Exerc 2017. [DOI: 10.1249/01.mss.0000519733.67135.9a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Johnson KE, VanDusseldorp TA, Escobar KA, Stratton M, Moriarty TA, McCormick JJ, Mangine GT, Nuñez TP, Beltz NM, Cole N, Endito M, Kerksick CM, Mermier CM. Six Grams Of Fish Oil Supplementation Improves Vertical Jump Performance Following Acute Eccentric Resistance Training. Med Sci Sports Exerc 2017. [DOI: 10.1249/01.mss.0000518525.61037.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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