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Rubio-Peirotén A, Cartón-Llorente A, Roche-Seruendo LE, Jaén-Carrillo D. Larger Achilles and plantar fascia induce lower duty factor during barefoot running. J Sci Med Sport 2023; 26:593-598. [PMID: 37778957 DOI: 10.1016/j.jsams.2023.09.012] [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: 06/15/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 10/03/2023]
Abstract
OBJECTIVES Tendons play a crucial role allowing the storage and release of mechanical energy during the running cycle. Running kinematics, including duty factor, constitute a basic element of the runner's biomechanics, and can determine their performance. This study aimed to analyze the link between Achilles tendon and plantar fascia morphology and running parameters, considering the influence of wearing shoes versus running barefoot. DESIGN Cross-sectional study. METHODS 44 participants (30 men and 14 women) engaged in two running sessions, one with shoes and one without, both lasting 3 min at a consistent speed of 12 km/h. We captured running kinematic data using a photoelectric cell system throughout the sessions. Before the trials, we measured the thickness and cross-sectional area of both the Achilles tendon and plantar fascia using ultrasound. RESULTS The Pearson test revealed a significant correlation (p < 0,05) between Achilles tendon and plantar fascia morphology and contact time (r > -0.325), flight time (r > -0.325) and duty factor (ratio of ground contact to stride time) (r > -0.328) during barefoot running. During the shod condition, no significant correlation was found between connective tissue morphology and kinematic variables. CONCLUSIONS In barefoot running, greater size of the Achilles tendon and plantar fascia results in a reduced duty factor, attributed to longer flight times and shorter contact times.
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Affiliation(s)
- Alberto Rubio-Peirotén
- Universidad San Jorge, Campus Universitario, Autov A23 km 299, 50830, Villanueva de Gállego Zaragoza, Spain.
| | - Antonio Cartón-Llorente
- Universidad San Jorge, Campus Universitario, Autov A23 km 299, 50830, Villanueva de Gállego Zaragoza, Spain
| | - Luis E Roche-Seruendo
- Universidad San Jorge, Campus Universitario, Autov A23 km 299, 50830, Villanueva de Gállego Zaragoza, Spain
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Davies RW, Carson BP, Bass JJ, Holohan S, Jakeman PM. Acute reduction of lower-body contractile function following a microbiopsy of m. vastus lateralis. Scand J Med Sci Sports 2018; 28:2638-2642. [PMID: 30203871 DOI: 10.1111/sms.13295] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/16/2018] [Accepted: 09/07/2018] [Indexed: 11/24/2022]
Abstract
Twenty-three resistance trained men 18-35 years (23 [3] years, 1.8 [0.1] m, 81 [10] kg body mass, 2.3 [1.1] years resistance training experience; mean [SD]) performed repeated maximal voluntary isometric squats (ISQ) and countermovement jumps (CMJ) pre- and +30 minutes post a unilateral microbiopsy of m. vastus lateralis. ISQ and CMJ were simultaneously measured by two force plates sampling ipsilateral (biopsied) and contralateral (non-biopsied) limb force. Bilateral limb force (ipsilateral + contralateral) and imbalance (ipsilateral/bilateral) data are reported as % change from pre-biopsy (mean [95% CI]). A post-biopsy reduction in bilateral ISQ peak force (-17 [-23, -11] %; P < 0.001), ISQ rate of force development (RFD; -28 [-41, -15] %, P = 0.002) and CMJ peak take-off force (-7 [-13, -1]%, P = 0.019) occurred. Imbalance was observed for ISQ peak force (3.2 [2.1, 4.3] %, P < 0.001), RFD (2.8 [1.6, 4.0] %, P < 0.001) and CMJ landing (3.3 [1.0, 5.6] %, P = 0.009), resultant of a force transfer from the ipsilateral (biopsied) to the contralateral (non-biopsied) limb. These data suggest that in young, resistance trained men a modulatory influence on maximal voluntary static and dynamic lower-body contractile function is evoked acutely (+30 minutes) following a microbiopsy of m. vastus lateralis.
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Affiliation(s)
- Robert W Davies
- Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland.,Food for Health Ireland, Centre for Interventions in Infection, Inflammation & Immunity (4i), University of Limerick, Limerick, Ireland
| | - Brian P Carson
- Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland.,Food for Health Ireland, Centre for Interventions in Infection, Inflammation & Immunity (4i), University of Limerick, Limerick, Ireland
| | - Joseph J Bass
- Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland.,Food for Health Ireland, Centre for Interventions in Infection, Inflammation & Immunity (4i), University of Limerick, Limerick, Ireland.,MRC/ARUK Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Biomedical Research Centre, School of Medicine, University of Nottingham, Derby, UK
| | - Sorcha Holohan
- Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland
| | - Philip M Jakeman
- Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland.,Food for Health Ireland, Centre for Interventions in Infection, Inflammation & Immunity (4i), University of Limerick, Limerick, Ireland
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Mazet A, Morin JB, Semay B, Philippot R, Edouard P. Modifications du pattern mécanique de course dans les suites d’une plastie du ligament croisé antérieur. Sci Sports 2016. [DOI: 10.1016/j.scispo.2016.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Morin JB, Tomazin K, Samozino P, Edouard P, Millet GY. High-intensity sprint fatigue does not alter constant-submaximal velocity running mechanics and spring-mass behavior. Eur J Appl Physiol 2011; 112:1419-28. [DOI: 10.1007/s00421-011-2103-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 07/26/2011] [Indexed: 11/29/2022]
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MORIN JEANBENOÎT, SAMOZINO PIERRE, MILLET GUILLAUMEY. Changes in Running Kinematics, Kinetics, and Spring-Mass Behavior over a 24-h Run. Med Sci Sports Exerc 2011; 43:829-36. [DOI: 10.1249/mss.0b013e3181fec518] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Morin J, Tomazin K, Edouard P, Millet G. Changes in running mechanics and spring–mass behavior induced by a mountain ultra-marathon race. J Biomech 2011; 44:1104-7. [DOI: 10.1016/j.jbiomech.2011.01.028] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 01/19/2011] [Accepted: 01/25/2011] [Indexed: 10/18/2022]
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Morin J, Samozino P, Bonnefoy R, Edouard P, Belli A. Direct measurement of power during one single sprint on treadmill. J Biomech 2010; 43:1970-5. [DOI: 10.1016/j.jbiomech.2010.03.012] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 03/06/2010] [Accepted: 03/10/2010] [Indexed: 10/19/2022]
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