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Waters M, Miljkovic B, Rascon J, Gomez M, Gurovich AN. Effects of 1 MHz Therapeutic Ultrasound on Limb Blood Flow and Microvascular Reactivity: A Randomized Pilot Trial. Int J Environ Res Public Health 2021; 18:ijerph182111444. [PMID: 34769960 PMCID: PMC8583538 DOI: 10.3390/ijerph182111444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/22/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022]
Abstract
A randomized, double-blind, placebo-controlled, cross-over study where continuous therapeutic ultrasound (CUS; at 0.4 W/cm2), pulsed therapeutic ultrasound (PUS; at 20% duty cycle, 0.08 W/cm2), both at 1 MHz, and placebo (equipment on, no energy provided) were randomized and applied over the forearm of the non-dominant arm for 5 min in 10 young, healthy individuals. Absolute and peak forearm blood flow (FBF) were measured via Venous Occlusion Plethysmography. FBF was measured before, halfway, and after (immediately and 5 min after) the therapeutic ultrasound (TUS) intervention. Post-ischemic peak FBF was measured 10 min before and 10 min after the TUS intervention. A two-way repeated measures ANOVA (group × time) was selected to assess differences in FBF before, during, and after TUS treatment, and for peak FBF before and after TUS treatment. FBF increased 5 min after TUS in CUS compared to placebo (2.96 ± 1.04 vs. 2.09 ± 0.63 mL/min/100 mL of tissue, p < 0.05). PUS resulted in the greatest increase in Peak FBF at 10 min after US (Δ = 3.96 ± 2.02 mL/min/100 mL of tissue, p = 0.06). CUS at 1 MHz was an effective treatment modality for increasing FBF up to 5 min after intervention, but PUS resulted in the greatest increase in peak FBF at 10 min after intervention.
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Affiliation(s)
- Megan Waters
- Doctor of Physical Therapy Program, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA; (M.W.); (B.M.); (J.R.)
| | - Branko Miljkovic
- Doctor of Physical Therapy Program, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA; (M.W.); (B.M.); (J.R.)
| | - Jozelyn Rascon
- Doctor of Physical Therapy Program, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA; (M.W.); (B.M.); (J.R.)
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79902, USA;
| | - Manuel Gomez
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79902, USA;
| | - Alvaro N. Gurovich
- Doctor of Physical Therapy Program, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA; (M.W.); (B.M.); (J.R.)
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79902, USA;
- Correspondence: ; Tel.: +1-915-747-7248; Fax: +1-915-747-8211
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Rascon J, Trujillo E, Morales-AcuÑa F, Gurovich AN. Differences between Males and Females in Determining Exercise Intensity. Int J Exerc Sci 2020; 13:1305-1316. [PMID: 33042374 PMCID: PMC7523896] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Even though there are physiological differences between males and females, heart rate (HR), ratings of perceived exertion (RPE), power output (PO), oxygen consumption (VO2), and blood lactate (BL) levels have been used as measures of exercise intensity independently of sex. The purpose of this study was to determine differences between sexes in different exercise intensity models. Thirty (15 females) young, healthy individuals were scheduled for two testing visits 48-72 hours apart. During the first testing visit, a graded exercise test (GXT), with BL obtained at the end of each exercise step, was administered on a stationary bicycle to determine peak PO and VO2max. BL during the GXT was used to determine three 5-min steady-state workloads (low: 0-2 mmol/L; moderate: 2-4 mmol/L; and high: >4 mmol/L) for the second test. HR, %HRmax, RPE, PO, %POmax, VO2, %VO2max, and BL were obtained at the end of each steady-state workload. A two-way repeated measures ANOVA was performed to compare all exercise intensity variables obtained during the second test between males and females (α=0.05). Only RPE, %PO, and BL did not differ between sexes on all 3 exercise intensities. HR, %HR, and PO differ between sexes on at least 2 exercise intensities. Females have higher HR and %HR than males for similar %PO. VO2 and %VO2max differ between sexes on at least 1 exercise intensity. Based on the current results, traditional exercise intensity markers are different between males and females. BL and %PO appear to be markers that might be used independently of sex.
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Affiliation(s)
- Jozelyn Rascon
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas-El Paso, El Paso, Texas, USA
| | - Elizabeth Trujillo
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas-El Paso, El Paso, Texas, USA
| | - Francisco Morales-AcuÑa
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas-El Paso, El Paso, Texas, USA
| | - Alvaro N Gurovich
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas-El Paso, El Paso, Texas, USA
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Trujillo E, Rascon J, Maddox J, Morales‐Acuna FJ, Gurovich AN. Heart Rate Differences in Males and Females during Similar Physiological Work. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.534.5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Rascon J, Trujillo E, Pena M, Pena FJ, Ramirez JA, Melendez G, Lazcano C, Gurovich AN. PhUn Week: Bigger and Better. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.766.15] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Rascon J, Morales FJ, Ratcliffe BJ, Harrison CD, Bockover EJ, Crowe S, Carriker CR, Gurovich AN. Acute Dietary Nitrate Supplementation has no Significant Effect on Wasted Left Ventricular Energy in Young Healthy Individuals. Med Sci Sports Exerc 2018. [DOI: 10.1249/01.mss.0000537038.11145.0c] [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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Rascon J, Pena FJ, Ramirez JA, Pena M, Trujillo E, Melendez G, Lazcano C, Morales Acuna FJ, Gurovich B, Valencia C, Gurovich AN. Middle School Females Have More Efficient Multitasking Abilities than Males. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.629.5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jozelyn Rascon
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
| | | | | | - Marcelo Pena
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
| | | | - Gladys Melendez
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
| | - Cameron Lazcano
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
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Rascon J, Pena FJ, Ramirez JA, Pena M, Trujillo E, Melendez G, Lazcano C, Morales Acuna FJ, Gurovich B, Valencia C, Gurovich AN. EMG Comparison between Sixth Grade Students. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.629.6] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jozelyn Rascon
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
| | | | | | - Marcelo Pena
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
| | | | - Gladys Melendez
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
| | - Cameron Lazcano
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
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Gurovich AN, Rascon J, Morales Acuna FJ, Shelton C. PhUn week 101: New Institution, New Partners, New Hope. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.629.9] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Jozelyn Rascon
- Rehabilitation SciencesThe University of Texas at El PasoEl PasoTX
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Cesaite R, Rascon J. 1417 Prospective erythrocyte mass tranfusion-induced iron overload observation in pediatric oncohaematalogical patients. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30588-3] [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: 11/29/2022]
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Chao MM, Kuehl JS, Strauss G, Hanenberg H, Schindler D, Neitzel H, Niemeyer C, Baumann I, von Bernuth H, Rascon J, Nagy M, Zimmermann M, Kratz CP, Ebell W. Outcomes of mismatched and unrelated donor hematopoietic stem cell transplantation in Fanconi anemia conditioned with chemotherapy only. Ann Hematol 2015; 94:1311-8. [PMID: 25862235 DOI: 10.1007/s00277-015-2370-7] [Citation(s) in RCA: 15] [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] [Received: 12/14/2014] [Accepted: 03/27/2015] [Indexed: 01/13/2023]
Abstract
Fanconi anemia (FA) is a genomic instability syndrome associated with bone marrow failure, myelodysplastic syndrome (MDS), and/or acute myeloid leukemia (AML) requiring hematopoietic stem cell transplantation (HSCT) to restore normal hematopoiesis. Although low-intensity fludarabine-based preparative regimens without radiation confer excellent outcomes in FA HSCTs with HLA-matched sibling donors, outcomes for FA patients with alternative donors are less encouraging, albeit improving. We present our experience with 17 FA patients who completed mismatched related or unrelated donor HSCT using a non-radiation fludarabine-based preparative regimen at Charité University Medicine Berlin. All patients engrafted; however, one patient had unstable chimerism in the setting of multi-viral infections that necessitated a stem cell boost to revert to full donor chimerism. Forty-seven percent of patients developed grade I acute graft-verus-host disease (aGVHD). No grade II-IV aGVHD or chronic graft-versus-host disease of any severity occurred. At a median follow-up of 30 months, 88 % of patients are alive with normal hematopoiesis. Two patients died of infections 4 months post-transplantation. These results demonstrate that short-term outcomes for FA patients with mismatched and unrelated donor HSCTs can be excellent using chemotherapy only conditioning. Viral reactivation, however, was a major treatment-related complication.
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Affiliation(s)
- M M Chao
- Department of Pediatric Hematology Oncology, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany,
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Pritchard-Jones K, Lewison G, Camporesi S, Vassal G, Ladenstein R, Benoit Y, Predojevic JS, Sterba J, Stary J, Eckschlager T, Schroeder H, Doz F, Creutzig U, Klingebiel T, Kosmidis HV, Garami M, Pieters R, O'Meara A, Dini G, Riccardi R, Rascon J, Rageliene L, Calvagna V, Czauderna P, Kowalczyk JR, Gil-da-Costa MJ, Norton L, Pereira F, Janic D, Puskacova J, Jazbec J, Canete A, Hjorth L, Ljungman G, Kutluk T, Morland B, Stevens M, Walker D, Sullivan R. The state of research into children with cancer across Europe: new policies for a new decade. Ecancermedicalscience 2011; 5:210. [PMID: 22276053 PMCID: PMC3223943 DOI: 10.3332/ecancer.2011.210] [Citation(s) in RCA: 7] [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: 01/24/2011] [Indexed: 11/12/2022] Open
Abstract
Overcoming childhood cancers is critically dependent on the state of research. Understanding how, with whom and what the research community is doing with childhood cancers is essential for ensuring the evidence-based policies at national and European level to support children, their families and researchers. As part of the European Union funded EUROCANCERCOMS project to study and integrate cancer communications across Europe, we have carried out new research into the state of research in childhood cancers. We are very grateful for all the support we have received from colleagues in the European paediatric oncology community, and in particular from Edel Fitzgerald and Samira Essiaf from the SIOP Europe office. This report and the evidence-based policies that arise from it come at a important junction for Europe and its Member States. They provide a timely reminder that research into childhood cancers is critical and needs sustainable long-term support.
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