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Heredia-Elvar JR, Juan-Recio C, Prat-Luri A, Barbado D, de Los Ríos-Calonge J, Vera-Garcia FJ. Exercise Intensity Progressions and Criteria to Prescribe Core Stability Exercises in Young Physically Active Men: A Smartphone Accelerometer-Based Study. J Strength Cond Res 2024; 38:266-273. [PMID: 38088901 DOI: 10.1519/jsc.0000000000004630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
ABSTRACT Heredia-Elvar, JR, Juan-Recio, C, Prat-Luri, A, Barbado, D, Ríos-Calonge, Jdl, and Vera-Garcia, FJ. Exercise intensity progressions and criteria to prescribe core stability exercises in young physically active men: a smartphone accelerometer-based study. J Strength Cond Res 38(2): 266-273, 2024-The establishment of core stability (CS) exercise intensity progressions in sport and clinical settings is normally based on subjective criteria. Therefore, this study aimed to develop exercise intensity progressions for some of the most common CS exercises through smartphone accelerometry and to analyze the effect of the subjects' lumbopelvic postural control on these progressions. Fifty-seven healthy young physically active male students performed 7 isometric variations of front bridge, back bridge, side bridge, and bird-dog exercises with a smartphone accelerometer placed on the pelvis. Mean pelvic accelerations were calculated during each variation to evaluate the lumbopelvic postural control challenge imposed on the subjects as an index of exercise intensity of difficulty. For the bridge exercises, long bridging produced higher pelvic accelerations than short bridging, bridging with single-leg support was more intense than bridging with double-leg support (even with both legs on a hemisphere ball for the back and front bridge), and the most difficult variations were those performed on a Swiss ball, mainly the variations with single-leg support. For the bird-dog exercise, the 2-point positions were more intense than the 3-point positions, the variations performed with a knee on the hemisphere ball produced higher pelvic accelerations than similar variations performed with the forearm on the hemisphere ball, and the variations with limb motions generated higher pelvic accelerations than similar variations performed without limb motions. Although the CS exercise progressions were very similar across subjects, our results showed the need to individualize the prescription of the CS exercise progressions based on the subjects' lumbopelvic postural control level.
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Affiliation(s)
- Juan R Heredia-Elvar
- Department of Sport Sciences, Sports Research Center, Miguel Hernández University of Elche, Alicante, Spain; and
| | - Casto Juan-Recio
- Department of Sport Sciences, Sports Research Center, Miguel Hernández University of Elche, Alicante, Spain; and
| | - Amaya Prat-Luri
- Department of Sport Sciences, Sports Research Center, Miguel Hernández University of Elche, Alicante, Spain; and
| | - David Barbado
- Department of Sport Sciences, Sports Research Center, Miguel Hernández University of Elche, Alicante, Spain; and
- Institute for Health and Biomedical Research (ISABIAL Foundation), Miguel Hernández University of Elche, Alicante, Spain
| | - Javier de Los Ríos-Calonge
- Department of Sport Sciences, Sports Research Center, Miguel Hernández University of Elche, Alicante, Spain; and
| | - Francisco J Vera-Garcia
- Department of Sport Sciences, Sports Research Center, Miguel Hernández University of Elche, Alicante, Spain; and
- Institute for Health and Biomedical Research (ISABIAL Foundation), Miguel Hernández University of Elche, Alicante, Spain
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Emeterio CS, Cochrane D, Guillén - Rogel P, Marín PJ. Short-term effects of lumbopelvic complex stability training in elite female road cyclists. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2022; 22:62-69. [PMID: 35234160 PMCID: PMC8919659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The purpose of this study was to determine the effects of short-term lumbopelvic stability training on muscular endurance and stability in elite female cyclists. METHODS Twenty-four female road cyclists were randomly allocated to a core training group (CTG, n=12) or control group (CG, n=12). In addition to their scheduled training the CTG performed a core training program, that consisted of 6 core exercises performed in a session every other day until a total of 8 training sessions were completed. The CG did not receive the core training program and completed their scheduled training. The lumbopelvic-hip complex was assessed pre- and post-core program included the following exercises: single leg deadlift (SLD), bird-dog (BD), plank test (PT), and side-bridge plank test (SPT). RESULTS In comparison to CG, CTG significantly improved the time to failure in PT, SPT-Left, and SPT-Right (p<0.05). Further, CTG resulted in a significant decrease in SLD (p<0.05) compared to CG for the three accelerometry measures. CONCLUSION The present results indicate that following 8 sessions of lumbopelvic stability training muscular endurance and core stability were enhanced.
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Affiliation(s)
- Cristina San Emeterio
- Laboratory of Physiology, European University Miguel de Cervantes, Spain,CYMO Research Institute, Spain
| | - Darryl Cochrane
- School of Sport, Exercise & Nutrition, Massey University, New Zealand
| | - Paloma Guillén - Rogel
- Laboratory of Physiology, European University Miguel de Cervantes, Spain,CYMO Research Institute, Spain
| | - Pedro J. Marín
- CYMO Research Institute, Spain,Corresponding author: Pedro J Marín, PhD, CYMO Research Institute, Valladolid, Spain E-mail:
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Heredia-Elvar JR, Juan-Recio C, Prat-Luri A, Barbado D, Vera-Garcia FJ. Observational Screening Guidelines and Smartphone Accelerometer Thresholds to Establish the Intensity of Some of the Most Popular Core Stability Exercises. Front Physiol 2021; 12:751569. [PMID: 34744790 PMCID: PMC8570278 DOI: 10.3389/fphys.2021.751569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 09/23/2021] [Indexed: 11/28/2022] Open
Abstract
The lack of training load control, mainly exercise intensity, is one of the main limitations of core stability (CS) programs, which makes the training individualization and the analysis of the dose-response relationship difficult. The objectives of this study were to assess the inter-and intra-rater agreement when using new observational screening guidelines to decide if a core stability exercise represents an adequate training intensity level for a given participant. Besides, the relationship between experts' ratings based on these criteria and pelvic accelerations recorded with a smartphone accelerometer was also analyzed. Ten healthy physically active participants with a smartphone accelerometer placed on their pelvis were video-taped while performing a progression of seven variations of the front bridge, back bridge, side bridge and bird-dog exercises. Two expert and four non-expert raters watched the videos and used the observational screening guidelines to decide for each exercise variation if it represented an adequate training intensity level or not. In order to analyze the inter-and intra-rater agreement, several Kappa (κ) statistics were used. Receiver operating characteristic (ROC) curves to explore if the accelerometry allowed to establish pelvic acceleration thresholds representing the minimum level of exercise intensity for CS training. Cut-off acceleration values were calculated balancing sensitivity (Se) and 1-specifity (1-Sp) indexes (i.e., Youden index) or minimizing 1-Sp. The intra-and inter-rater analysis showed a substantial-high level of agreement with a prevalence-adjusted bias-adjusted Kappa > 0.69. The ROC curves showed that the acceleration thresholds for the bridging exercises were very similar, with global cut-off values of 0.35 m/s2 (Se = 82%; 1-Sp = 15%) when using the Youden Index and of 0.50 m/s2 when minimizing 1-Sp (Se = 31%), whilst the bird-dog exercise showed lower cut-off values (Youden Index: 0.21 m/s2, Se = 90%, 1-Sp = 16%; minimizing 1-Sp: 0.32 m/s2, Se = 40%). Overall, this study provides observational screening guidelines and smartphone accelerometer thresholds to facilitate the decision-making process when setting the intensity of some of the most popular core stability exercises in young physically active individuals.
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Affiliation(s)
- Juan R Heredia-Elvar
- Sports Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Alicante, Spain
| | - Casto Juan-Recio
- Sports Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Alicante, Spain
| | - Amaya Prat-Luri
- Sports Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Alicante, Spain
| | - David Barbado
- Sports Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Alicante, Spain
| | - Francisco J Vera-Garcia
- Sports Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Alicante, Spain
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Guillén-Rogel P, Barbado D, Franco-Escudero C, San Emeterio C, Marín PJ. Are Core Stability Tests Related to Single Leg Squat Performance in Active Females? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18115548. [PMID: 34067492 PMCID: PMC8196943 DOI: 10.3390/ijerph18115548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 12/02/2022]
Abstract
Core stability (CS) deficits can have a significant impact on lower limb function. The aim of this study was to investigate the relationship between two dynamic core exercise assessments and dynamic knee valgus during single-leg squats. In total, 20 physically active female students participated in this study. The OCTOcore smartphone application assesses CS during two dynamic exercise tests, the partial range single-leg deadlift (SLD) test and the bird-dog (BD) test. A two-dimensional assessment of a single-leg squat test was used to quantify participants’ hip frontal angle (HFASLS) and knee frontal plane projection angle (FPPASLS). Ankle dorsiflexion was evaluated through the weight-bearing dorsiflexion test. The correlational analyses indicated that the HFASLS was significantly related to the partial range single-leg deadlift test (r = 0.314, p < 0.05) and ankle dorsiflexion (r = 0.322, p < 0.05). The results showed a significant difference (p < 0.05) in the CS test between cases categorised as dynamic knee valgus (>10°) and normal (≤10°). The CS deficit may influence the neuromuscular control of the lumbopelvic-hip complex during single-leg movements. The link between CS and kinematic factors related to knee injuries was only observed when CS was measured in the SLD test but not in the BD test.
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Affiliation(s)
- Paloma Guillén-Rogel
- Laboratory of Physiology, Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain; (P.G.-R.); (C.F.-E.); (C.S.E.)
| | - David Barbado
- Sport Research Centre, Miguel Hernández University, 03202 Elche, Spain;
| | - Cristina Franco-Escudero
- Laboratory of Physiology, Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain; (P.G.-R.); (C.F.-E.); (C.S.E.)
| | - Cristina San Emeterio
- Laboratory of Physiology, Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain; (P.G.-R.); (C.F.-E.); (C.S.E.)
| | - Pedro J. Marín
- Development Research, CYMO Research Institute, 47140 Valladolid, Spain
- Correspondence:
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Emeterio CS, Menéndez H, Guillén-Rogel P, Marín PJ. Effect of cycling exercise on lumbopelvic control performance in elite female cyclists. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2021; 21:475-480. [PMID: 34854386 PMCID: PMC8672406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The purpose of the present study is to assess the effects of an intense cycling training session on the stability of the lumbopelvic-hip complex through two dynamic exercise tests - the single-leg-deadlift (SLD) and a variation of the bird-modified dog (BD), via the OCTOcore application. METHODS Thirty-one elite female road cyclists were self-evaluated with their own smartphones, before and immediately after finishing their training sessions. Right, left and composite were measured for each exercise test. RESULTS There was a significant time effect on performance for both the SLB and BD tests (p<0.05; η2=0.137), and the SLD and BD tests were increased with respect to the pre-test at 15% and 17%, respectively. CONCLUSION An intense cycling training session produced significant alterations in lumbopelvic behavior in the elite female cyclists. The OCTOcore application demonstrated that it was a sensitive tool in detecting these changes and it could easily be used by the cyclists themselves.
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Affiliation(s)
- Cristina San Emeterio
- Laboratory of Physiology, European University Miguel de Cervantes, Spain,CYMO Research Institute, Spain
| | - Héctor Menéndez
- Laboratory of Physiology, European University Miguel de Cervantes, Spain,CYMO Research Institute, Spain
| | - Paloma Guillén-Rogel
- Laboratory of Physiology, European University Miguel de Cervantes, Spain,CYMO Research Institute, Spain
| | - Pedro J. Marín
- CYMO Research Institute, Spain,Corresponding author: Pedro J. Marín, PhD, CYMO Research Institute, Valladolid, Spain E-mail:
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Bangaru SS, Wang C, Aghazadeh F. Data Quality and Reliability Assessment of Wearable EMG and IMU Sensor for Construction Activity Recognition. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5264. [PMID: 32942606 PMCID: PMC7570501 DOI: 10.3390/s20185264] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 12/22/2022]
Abstract
The workforce shortage is one of the significant problems in the construction industry. To overcome the challenges due to workforce shortage, various researchers have proposed wearable sensor-based systems in the area of construction safety and health. Although sensors provide rich and detailed information, not all sensors can be used for construction applications. This study evaluates the data quality and reliability of forearm electromyography (EMG) and inertial measurement unit (IMU) of armband sensors for construction activity classification. To achieve the proposed objective, the forearm EMG and IMU data collected from eight participants while performing construction activities such as screwing, wrenching, lifting, and carrying on two different days were used to analyze the data quality and reliability for activity recognition through seven different experiments. The results of these experiments show that the armband sensor data quality is comparable to the conventional EMG and IMU sensors with excellent relative and absolute reliability between trials for all the five activities. The activity classification results were highly reliable, with minimal change in classification accuracies for both the days. Moreover, the results conclude that the combined EMG and IMU models classify activities with higher accuracies compared to individual sensor models.
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Affiliation(s)
- Srikanth Sagar Bangaru
- Bert S. Turner Department of Construction Management, Louisiana State University, 237 Electrical Engineering Building, Baton Rouge, LA 70803, USA;
| | - Chao Wang
- Bert S. Turner Department of Construction Management, Louisiana State University, 3315D Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
| | - Fereydoun Aghazadeh
- Department of Mechanical & Industrial Engineering, Louisiana State University, 3250A Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA;
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