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Leung CK, Bernal JDK, Yu AP, Recchia F, Tam BT, Fong DYT, Chan DKC, Ngai HH, Lee CH, Yung PSH, Wong SHS, Gibala M, Siu PM. Effects of volume-matched once-weekly and thrice-weekly high-intensity interval training (HIIT) on body adiposity in adults with central obesity: Study protocol for a randomized controlled trial. J Exerc Sci Fit 2024; 22:329-340. [PMID: 38993983 PMCID: PMC11238123 DOI: 10.1016/j.jesf.2024.05.001] [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: 01/19/2024] [Revised: 05/06/2024] [Accepted: 05/29/2024] [Indexed: 07/13/2024] Open
Abstract
Objective This study aims to examine the comparative effects of 75 min of volume-matched once-weekly and thrice-weekly high-intensity interval training (HIIT) on body adiposity in adults with central obesity. Methods This assessor-blinded, three-arm, randomized controlled trial will recruit 315 physically inactive adults with central obesity (aged ≥18 years, body mass index ≥23, waist circumference ≥90 cm for men and ≥80 cm for women). Participants will be randomly allocated to the once-weekly HIIT, thrice-weekly HIIT or usual care control group. Participants in the HIIT groups will receive weekly exercise training sessions for 16 weeks, prescribed either once or three times weekly. Each HIIT session will consist of a supervised program of four 4-min high-intensity intervals at 85%-95% peak heart rate (HRpeak) interspersed with 3-min active recovery intervals at 50%-70% HRpeak. Participants in the once-weekly HIIT group will perform the 25-min HIIT bout three times with a break between each 25-min HIIT bout. The usual care control group will receive bi-weekly health education classes. The outcome assessments will be conducted at baseline, 16 weeks (post-intervention) and 32 weeks (follow-up). The primary outcome will be total body adiposity assessed by dual-energy X-ray absorptiometry (DXA). The secondary outcome measures will include markers of cardiovascular and metabolic health (body composition, cardiorespiratory fitness, blood pressure, and blood lipids), mental health, cognitive performance, health-related quality of life, sleep quality, habitual physical activity, diet, medication, adverse events and adherence to the intervention. Impact of the project The findings from this study are expected to consolidate the therapeutic efficacy of HIIT for the management of central obesity and inform the comparative compliance, feasibility and suitability of once-weekly and thrice-weekly HIIT as exercise strategies to manage obesity. In particular, the present study is expected to provide a novel perspective on the utility of low-frequency HIIT (i.e., once-weekly) as an effective and sustainable exercise strategy to tackle the obesity pandemic. The anticipated findings will hold substantial translational value by informing public health policies and enhancing exercise compliance in the physically inactive obese population. Trial registration ClinicalTrials.gov (NCT04887454).
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Affiliation(s)
- Chit K Leung
- Division of Kinesiology, School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Joshua D K Bernal
- Division of Kinesiology, School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Angus P Yu
- Division of Kinesiology, School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Francesco Recchia
- Division of Kinesiology, School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Bjorn T Tam
- Department of Sport, Physical Education and Health, Faculty of Social Sciences, Hong Kong Baptist University, Hong Kong, China
- Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, Faculty of Social Sciences, Hong Kong Baptist University, Hong Kong, China
| | - Daniel Y T Fong
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Derwin K C Chan
- Department of Early Childhood Education, The Education University of Hong Kong, Hong Kong, China
| | - Heidi H Ngai
- Dietetic Clinic, School of Professional and Continuing Education, The University of Hong Kong, Hong Kong, China
| | - Chi H Lee
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
| | - Patrick S H Yung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Stephen H S Wong
- Department of Sports Science and Physical Education, The Chinese University of Hong Kong, Hong Kong, China
| | - Martin Gibala
- Department of Kinesiology, McMaster University, Canada
| | - Parco M Siu
- Division of Kinesiology, School of Public Health, The University of Hong Kong, Hong Kong, China
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Redinger AL, Russell JL, Allen SMF, Baker BS. Height Restrictions for Dual-energy X-ray Absorptiometry: What Are Our Options for Body Composition and Bone Health Precision? J Strength Cond Res 2024; 38:e359-e365. [PMID: 38662930 DOI: 10.1519/jsc.0000000000004775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
ABSTRACT Redinger, AL, Russell, JL, Allen, SMF, and Baker, BS. Height restrictions for dual-energy X-ray absorptiometry: what are our options for body composition and bone health precision? J Strength Cond Res 38(7): e359-e365, 2024-Dual-energy X-ray absorptiometry (DXA) is commonly used for testing athlete's body composition, but many athletes are too tall. The first aim was to assess the viability of combining upper- and lower-body regions of interest (ROI), creating a combined scan for tall athletes who do not fit on the table and second, to provide practical solutions to DXA users who routinely scan tall athletes. Sixty subjects (34.8 ± 11.9 years; 171 ± 9 cm) completed 2 total-body DXA scans for baseline precision testing, using GE Lunar Prodigy (LP) or Hologic Horizon A (HA) models. Next, an upper body ROI from the skull to the distal femoral condyles was combined with a flipped scan (feet-to-head) ROI encompassing the proximal tibial plateau to the distal foot. Soft and bone tissue coefficient of variance (CV%) were calculated between the baseline scans and for the newly combined ROI scan. The combined ROI scan added 0.25-0.63% and 0.01-4.35% error rates for the LP and HA, respectively. An exploratory assessment of a GE Lunar iDXA demonstrated results similar to the HA with 4%+ error. The combined ROI scan is a user-friendly and precise method for older LP systems adding less than 1% error; however, newer DXA systems cannot use the stitched scan technique. Coaches and practitioners who use newer DXAs must prioritize consistently using the same boney landmarks (head, jaw, or feet) and ROI heights to provide precise longitudinal assessments of tall athletes' bone and body composition, until larger DXA tables become available.
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Affiliation(s)
- Allen L Redinger
- Musculoskeletal Adaptations to Aging and eXercise (MAAX) Lab, Oklahoma State University, Stillwater, Oklahoma; and
| | - Jennifer L Russell
- Oklahoma City Thunder Professional Basketball Club, Human and Player Performance, Oklahoma City, Oklahoma
| | - Shawn M F Allen
- Musculoskeletal Adaptations to Aging and eXercise (MAAX) Lab, Oklahoma State University, Stillwater, Oklahoma; and
| | - Breanne S Baker
- Musculoskeletal Adaptations to Aging and eXercise (MAAX) Lab, Oklahoma State University, Stillwater, Oklahoma; and
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Redinger AL, Allen SMF, Buchanan SR, Black CD, Baker BS. Non-traditional HIIT-style ROTC training elicits positive bone quality and performance adaptations. J Sports Sci 2023; 41:1587-1595. [PMID: 38126323 DOI: 10.1080/02640414.2023.2283998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 11/09/2023] [Indexed: 12/23/2023]
Abstract
Military personnel experience elevated bone injury incidence, partly due to arduous and repetitive training. Non-traditional High-Intensity Interval Training-style (HIIT) may benefit pre-enlisted Reserve Officer Training Corps (ROTC) cadet's musculoskeletal health and performance prior to military service. This study investigated 16 ROTC (n = 12 males; n = 4 females) and 15 physically active sex-, age-, and body mass-matched Controls' musculoskeletal health and performance from November to April. Total body, lumbar spine, and dual- hip dual-energy X-ray absorptiometry scans and 4%, 38%, 66% tibial peripheral quantitative computed tomography scans, blood draws (serum sclerostin and parathyroid hormone), and maximal muscle strength and aerobic capacity testing were completed. From November to April, ROTC improved bone density (DXA) of the dominant total hip and greater trochanter and non-dominant greater trochanter and 38% and 66% tibial total volumetric and cortical bone density (pQCT) similarly or more than Controls (all p ≤ 0.049). From November to April, ROTC also improved bench and leg press, and peak aerobic capacity (all p ≤ 0.013). From November to January, serum sclerostin increased (p ≤ 0.007) and remained elevated through April, while parathyroid hormone was unchanged. HIIT-style training induced positive musculoskeletal adaptations, suggesting it may be an excellent pre-service training modality for this injury prone group.
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Affiliation(s)
- Allen L Redinger
- Musculoskeletal Adaptations to Aging and eXercise (MAAX) Lab, Oklahoma State University, Stillwater, OK, USA
| | - Shawn M F Allen
- Musculoskeletal Adaptations to Aging and eXercise (MAAX) Lab, Oklahoma State University, Stillwater, OK, USA
| | - Samuel R Buchanan
- Department of Health and Human Performance, University of Texas Rio Grande Valley, Edinburg, TX, USA
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
| | - Christopher D Black
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
| | - Breanne S Baker
- Musculoskeletal Adaptations to Aging and eXercise (MAAX) Lab, Oklahoma State University, Stillwater, OK, USA
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
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Chan CH, Huang WC, Lu YC, Hsiao HF, Chan WP. BatchBMD as an Efficient and Accurate Dual-Energy X-ray Absorptiometry Report Generator. Diagnostics (Basel) 2021; 11:diagnostics11122403. [PMID: 34943639 PMCID: PMC8700356 DOI: 10.3390/diagnostics11122403] [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: 10/30/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 12/04/2022] Open
Abstract
Dual-energy X-ray absorptiometry is the gold standard for evaluating Bone Mineral Density (BMD); however, a typical BMD report is generated in a time-inefficient manner and is prone to error. We developed a rule-based automated reporting system, BatchBMD, that accelerates DXA reporting while improving its accuracy over current systems. BatchBMD generates a structured report, customized to the specific clinical purpose. To compare BatchBMD to a Web-based Reporting (WBR) system for efficiency and accuracy, 500 examinations were randomly chosen from those performed at the Taipei Municipal Wanfang Hospital from January to March 2021. The final assessment included all 2326 examinations conducted from September 2020 to March 2021. The average reporting times were 6.7 and 10.8 min for BatchBMD and the WBR system, respectively, while accuracy was 99.4% and 98.2%, respectively. Most of the errors made by BatchBMD were digit errors in the appendicular skeletal muscle index. After correcting this, 100% accuracy across all 2326 examinations was validated. This automated and accurate BMD reporting system significantly reduces report production workload for radiologists and technicians while increasing productivity and quality. Additionally, the portable software, which employs a simple framework, can reduce deployment costs in clinical practice.
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Affiliation(s)
- Chun-Hsiang Chan
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan; (C.-H.C.); (Y.-C.L.); (H.-F.H.)
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Wen-Chi Huang
- Department of Computer Science and Information Engineering, National Taiwan University, Taipei 106, Taiwan;
| | - Yi-Chien Lu
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan; (C.-H.C.); (Y.-C.L.); (H.-F.H.)
| | - Hsing-Fen Hsiao
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan; (C.-H.C.); (Y.-C.L.); (H.-F.H.)
| | - Wing P. Chan
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan; (C.-H.C.); (Y.-C.L.); (H.-F.H.)
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Correspondence:
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