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Alonso-Calvete A, Lorenzo-Martínez M, Pérez-Ferreirós A, Couso-Bruno A, Carracedo-Rodríguez E, Barcala-Furelos M, Barcala-Furelos R, Padrón-Cabo A. Why Percussive Massage Therapy Does Not Improve Recovery after a Water Rescue? A Preliminary Study with Lifeguards. Healthcare (Basel) 2022; 10:healthcare10040693. [PMID: 35455870 PMCID: PMC9031405 DOI: 10.3390/healthcare10040693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to analyze the effects of percussive massage therapy (PMT) on lifeguards’ recovery after a water rescue, in comparison with passive recovery. Methods: A quasi-experimental crossover design was conducted to compare passive recovery (PR) and a PMT protocol. A total of 14 volunteer lifeguards performed a simulated 100 m water rescue and perceived fatigue and blood lactate were measured as recovery variables after the rescue and after the 8-min recovery process. Results: There were no differences between PMT and PR in lactate clearance (p > 0.05), finding in both modalities a small but not significant decrease in blood lactate. In perceived fatigue, both methods decreased this variable significantly (p < 0.001), with no significant differences between them (p > 0.05). Conclusions: PMT does not enhance recovery after a water rescue, in comparison with staying passive. Despite PMT appearing to be adequate for recovery in other efforts, it is not recommended for lifeguards’ recovery after a water rescue.
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Affiliation(s)
- Alejandra Alonso-Calvete
- REMOSS Research Group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, 36005 Pontevedra, Spain; (A.A.-C.); (M.L.-M.); (A.C.-B.); (E.C.-R.); (R.B.-F.)
- Facultade de Fisioterapia, Universidade de Vigo, 36005 Pontevedra, Spain
| | - Miguel Lorenzo-Martínez
- REMOSS Research Group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, 36005 Pontevedra, Spain; (A.A.-C.); (M.L.-M.); (A.C.-B.); (E.C.-R.); (R.B.-F.)
| | - Alexandra Pérez-Ferreirós
- REMOSS Research Group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, 36005 Pontevedra, Spain; (A.A.-C.); (M.L.-M.); (A.C.-B.); (E.C.-R.); (R.B.-F.)
- Correspondence:
| | - Antonio Couso-Bruno
- REMOSS Research Group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, 36005 Pontevedra, Spain; (A.A.-C.); (M.L.-M.); (A.C.-B.); (E.C.-R.); (R.B.-F.)
| | - Eloy Carracedo-Rodríguez
- REMOSS Research Group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, 36005 Pontevedra, Spain; (A.A.-C.); (M.L.-M.); (A.C.-B.); (E.C.-R.); (R.B.-F.)
| | - Martín Barcala-Furelos
- Facultad de Ciencias de la Salud, Facultad de Ciencias Sociales y Humanidades, Universidad Europea del Atlántico, 39011 Santander, Spain;
| | - Roberto Barcala-Furelos
- REMOSS Research Group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, 36005 Pontevedra, Spain; (A.A.-C.); (M.L.-M.); (A.C.-B.); (E.C.-R.); (R.B.-F.)
| | - Alexis Padrón-Cabo
- Department of Physical Education and Sport Science, Faculty of Sports Sciences and Physical Education, University of A Coruña, 15179 A Coruña, Spain;
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Alonso-Calvete A, Lage-Rey A, Lorenzo-Martínez M, Rey E. Does a short intervention with vibration foam roller recover lifeguards better after a water rescue? A pilot study. Am J Emerg Med 2021; 49:71-75. [PMID: 34082190 DOI: 10.1016/j.ajem.2021.04.089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 12/01/2022] Open
Abstract
PURPOSE The aim of this study was to analyze the effects of a recovery program based on foam roller with and without vibration on blood lactate clearance and perceived fatigue after a water rescue. METHODS A quasi-experimental crossover design was carried out to compare passive (PR) recovery and a short protocol of foam roller (FR) and vibration foam roller (VFR) recovery after a 100 m water rescue in 7 volunteer lifeguards. Blood lactate and perceived exertion were measured before and after the rescue, and also after the 5-min recovery intervention. RESULTS Blood lactate levels decrease significantly with foam roller (p = 0.013; effect size = 0.97) and vibration foam roller recovery (p < 0.001; effect size = 1.62). Passive recovery did not show significant differences clearing out blood lactate. Fatigue perceived decrease significantly with all the recovery methods, but foam roller has higher effects on the global fatigue and VFR on the legs. CONCLUSION FR and VFR clear out more blood lactate and decrease fatigue more than PR, with the subsequently increase of the physical conditioning to perform another effort.
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Affiliation(s)
- Alejandra Alonso-Calvete
- REMOSS Research group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, Spain
| | - Antón Lage-Rey
- REMOSS Research group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, Spain
| | - Miguel Lorenzo-Martínez
- REMOSS Research group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, Spain.
| | - Ezequiel Rey
- REMOSS Research group, Facultade de Ciencias da Educación e do Deporte, Universidade de Vigo, Spain
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Barcala-Furelos R, González-Represas A, Rey E, Martínez-Rodríguez A, Kalén A, Marques O, Rama L. Is Low-Frequency Electrical Stimulation a Tool for Recovery after a Water Rescue? A Cross-Over Study with Lifeguards. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17165854. [PMID: 32806727 PMCID: PMC7460120 DOI: 10.3390/ijerph17165854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/26/2020] [Accepted: 08/10/2020] [Indexed: 11/16/2022]
Abstract
This study aimed to evaluate the degree to which transcutaneous electrical stimulation (ES) enhanced recovery following a simulated water rescue. Twenty-six lifeguards participated in this study. The rescue consisted of swimming 100 m with fins and rescue-tube: 50 m swim approach and 50 m tow-in a simulated victim. Blood lactate clearance, rated perceived effort (RPE), and muscle contractile properties were evaluated at baseline, after the water rescue, and after ES or passive-recovery control condition (PR) protocol. Tensiomiography, RPE, and blood lactate basal levels indicated equivalence between both groups. There was no change in tensiomiography from pre to post-recovery and no difference between recovery protocols. Overall-RPE, legs-RPE and arms-RPE after ES (mean ± SD; 2.7 ± 1.53, 2.65 ± 1.66, and 2.30 ± 1.84, respectively) were moderately lower than after PR (3.57 ± 2.4, 3.71 ± 2.43, and 3.29 ± 1.79, respectively) (p = 0.016, p = 0.010, p = 0.028, respectively). There was a significantly lower blood lactate level after recovery in ES than in PR (mean ± SD; 4.77 ± 1.86 mmol·L-1 vs. 6.27 ± 3.69 mmol·L-1; p = 0.045). Low-frequency ES immediately after a water rescue is an effective recovery strategy to clear out blood lactate concentration.
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Affiliation(s)
- Roberto Barcala-Furelos
- REMOSS Research Group, Faculty of Education and Sport Sciences, University of Vigo, 36005 Pontevedra, Spain; (R.B.-F.); (A.K.)
- CLINURSID Network Research, Department of Psychiatry, Radiology and Public Health, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Alicia González-Represas
- Department of Functional Biology and Health Sciences, Faculty of Physiotherapy, University of Vigo, 36005 Vigo, Spain;
| | - Ezequiel Rey
- REMOSS Research Group, Faculty of Education and Sport Sciences, University of Vigo, 36005 Pontevedra, Spain; (R.B.-F.); (A.K.)
- Correspondence:
| | - Alicia Martínez-Rodríguez
- Department of Physiotherapy, Medicine and Biomedical Sciences, Universidade da Coruña, 15006 La Coruña, Spain;
| | - Anton Kalén
- REMOSS Research Group, Faculty of Education and Sport Sciences, University of Vigo, 36005 Pontevedra, Spain; (R.B.-F.); (A.K.)
| | - Olga Marques
- Faculty of Sports Sciences and Physical Education, University of Coimbra, 3040-156 Coimbra, Portugal; (O.M.); (L.R.)
- Research Unit for Sport and Physical Activity (CIDAF), 3040-156 Coimbra, Portugal
| | - Luís Rama
- Faculty of Sports Sciences and Physical Education, University of Coimbra, 3040-156 Coimbra, Portugal; (O.M.); (L.R.)
- Research Unit for Sport and Physical Activity (CIDAF), 3040-156 Coimbra, Portugal
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Stavrou V, Tsarouhas K, Karetsi E, Michos P, Daniil Z, I Gourgoulianis K. Adolescent Finswimmers: Early Myocardial Adaptations in Different Swimming Styles. Sports (Basel) 2018; 6:sports6030078. [PMID: 30103388 PMCID: PMC6162589 DOI: 10.3390/sports6030078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/06/2018] [Accepted: 08/06/2018] [Indexed: 11/16/2022] Open
Abstract
Background: The purpose of our study was to investigate early differences in the adolescent female finswimmers’ echocardiography parameters, possibly associated with different swimming-style training and different training equipment (monofin (MF) versus bifin (BF)). Method: Forty-three female finswimmers participated in our study (age: 15.6 ± 2.1 years, body mass index: 20.4 ± 2.2 kg/m2, body surface area: 1.56 ± 0.04 m2, body fat: 11.2 ± 0.6%) and were divided into two groups, according to the swimming style practiced (MF vs BF). Anthropometric characteristics, echocardiography and arterial pressure were measured. The independent t-test was used for statistical comparisons between groups. Stepwise multivariate regression analysis was applied to investigate associations between various variables. Results: The two groups used training equipment with different weights (p < 0.001). Female adolescent finswimmers presented signs of myocardial hypertrophy depicted by the increased left ventricle myocardial mass indexed to body surface area (101.34 ± 23.65). Different patterns of myocardial hypertrophy were observed for the two groups; MF swimmers presented concentric hypertrophy, while BF swimmers presented eccentric hypertrophy (relative wall thickness MF = 0.46 ± 0.08 vs BF = 0.39 ± 0.06 cm, p < 0.05). MF swimmers had also higher left ventricular posterior wall diameters (p < 0.05), lower stroke volume values (p < 0.05) and lower ejection fraction (p < 0.05) compared to BF athletes. Conclusion: Adolescent female finswimmers presented different patterns of myocardial hypertrophy possibly related to different training protocols and modes of exercise.
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Affiliation(s)
- Vasileios Stavrou
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, 41110 Larissa, Greece.
- School of Physical Education and Sports Science, University of Thessaly, Karyes, 42100 Trikala, Greece.
| | - Konstantinos Tsarouhas
- Cardiological Department, General University Hospital of Larissa, 41222 Larissa, Greece.
| | - Eleni Karetsi
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, 41110 Larissa, Greece.
| | - Panagiotis Michos
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, 41110 Larissa, Greece.
| | - Zoe Daniil
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, 41110 Larissa, Greece.
| | - Konstantinos I Gourgoulianis
- Laboratory of Cardio-Pulmonary Testing, Department of Respiratory Medicine, University of Thessaly, 41110 Larissa, Greece.
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Averianova A, Nikodelis T, Konstantakos V, Kollias I. Rotational kinematics of pelvis and upper trunk at butterfly stroke: Can fins affect the dynamics of the system? J Biomech 2016; 49:423-8. [DOI: 10.1016/j.jbiomech.2016.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 12/30/2015] [Accepted: 01/04/2016] [Indexed: 10/22/2022]
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Whitting JW, von Tscharner V. Monopolar electromyographic signals recorded by a current amplifier in air and under water without insulation. J Electromyogr Kinesiol 2014; 24:848-54. [PMID: 25241214 DOI: 10.1016/j.jelekin.2014.08.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 07/01/2014] [Accepted: 08/25/2014] [Indexed: 11/25/2022] Open
Abstract
It was recently proposed that one could use signal current instead of voltage to collect surface electromyography (EMG). With EMG-current, the electrodes remain at the ground potential, thereby eliminating lateral currents. The purpose of this study was to determine whether EMG-currents can be recorded in Tap and Salt water, as well as in air, without electrically shielding the electrodes. It was hypothesized that signals would display consistent information between experimental conditions regarding muscle responses to changes in contraction effort. EMG-currents were recorded from the flexor digitorum muscles as participant's squeezed a pre-inflated blood pressure cuff bladder in each experimental condition at standardized efforts. EMG-current measurements performed underwater showed no loss of signal amplitude when compared to measurements made in air, although some differences in amplitude and spectral components were observed between conditions. However, signal amplitudes and frequencies displayed consistent behavior across contraction effort levels, irrespective of the experimental condition. This new method demonstrates that information regarding muscle activity is comparable between wet and dry conditions when using EMG-current. Considering the difficulties imposed by the need to waterproof traditional bipolar EMG electrodes when underwater, this new methodology is tremendously promising for assessments of muscular function in aquatic environments.
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Affiliation(s)
- John W Whitting
- School of Health and Human Sciences, Southern Cross University, Lismore, NSW, Australia
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Mahiou B, Razafimahery F, Rakotomanana SL. Propulsive efficiency of a multilayer anisotropic fin in fluid–structure interaction. Comput Methods Biomech Biomed Engin 2011. [DOI: 10.1080/10255842.2011.595200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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