Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses

Autores
Villas Boas, Julia Dias; Martins Dias, Daniel Penteado; Trigo, Pablo Ignacio; dos Santos Almeida, Norma Aparecida; de Almeida, Fernando Queiroz; de Madeiros, Magda Alves
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Startle is a fast response elicited by sudden acoustic, tactile, or visual stimuli in a variety of animals and in humans. As the magnitude of startle response can be modulated by external and internal variables, it can be a useful tool to study reaction to stress. Our study evaluated whether acupuncture can change cardiac autonomic modulation (heart rate variability); and behavioural (reactivity) and endocrine (cortisol levels) parameters in response to startle. Brazilian Sport horses (n = 6) were subjected to a model of startle in which an umbrella was abruptly opened near the horse. Before startle, the horses were subjected to a 20-minute session of acupuncture in acupoints GV1, HT7, GV20, and BL52 (ACUP) and in nonpoints (NP) or left undisturbed (CTL). For analysis of the heart rate variability, ultrashort-term (64 s) heart rate series were interpolated (4 Hz) and divided into 256-point segments and the spectra integrated into low (LF; 0.01–0.07 Hz; index of sympathetic modulation) and high (HF; 0.07–0.50 Hz; index of parasympathetic modulation) frequency bands. Acupuncture (ACUP) changed the sympathovagal balance with a shift towards parasympathetic modulation, reducing the prompt startle-induced increase in LF/HF and reducing cortisol levels 30 min after startle. However, acupuncture elicited no changes in behavioural parameters.
Instituto de Genética Veterinaria
Materia
Ciencias Veterinarias
Ciencias Agrarias
Animal behavior
Alternative medicine
Welfare
Equine
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/104294
Acceder
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network_name_str SEDICI (UNLP)
spelling Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horsesVillas Boas, Julia DiasMartins Dias, Daniel PenteadoTrigo, Pablo Ignaciodos Santos Almeida, Norma Aparecidade Almeida, Fernando Queirozde Madeiros, Magda AlvesCiencias VeterinariasCiencias AgrariasAnimal behaviorAlternative medicineWelfareEquineStartle is a fast response elicited by sudden acoustic, tactile, or visual stimuli in a variety of animals and in humans. As the magnitude of startle response can be modulated by external and internal variables, it can be a useful tool to study reaction to stress. Our study evaluated whether acupuncture can change cardiac autonomic modulation (heart rate variability); and behavioural (reactivity) and endocrine (cortisol levels) parameters in response to startle. Brazilian Sport horses (n = 6) were subjected to a model of startle in which an umbrella was abruptly opened near the horse. Before startle, the horses were subjected to a 20-minute session of acupuncture in acupoints GV1, HT7, GV20, and BL52 (ACUP) and in nonpoints (NP) or left undisturbed (CTL). For analysis of the heart rate variability, ultrashort-term (64 s) heart rate series were interpolated (4 Hz) and divided into 256-point segments and the spectra integrated into low (LF; 0.01–0.07 Hz; index of sympathetic modulation) and high (HF; 0.07–0.50 Hz; index of parasympathetic modulation) frequency bands. Acupuncture (ACUP) changed the sympathovagal balance with a shift towards parasympathetic modulation, reducing the prompt startle-induced increase in LF/HF and reducing cortisol levels 30 min after startle. However, acupuncture elicited no changes in behavioural parameters.Instituto de Genética Veterinaria2015-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1-9http://sedici.unlp.edu.ar/handle/10915/104294enginfo:eu-repo/semantics/altIdentifier/url/http://hdl.handle.net/11336/11534info:eu-repo/semantics/altIdentifier/issn/1741-4288info:eu-repo/semantics/altIdentifier/doi/10.1155/2015/219579info:eu-repo/semantics/altIdentifier/hdl/11336/11534info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar/Creative Commons Attribution 2.5 Argentina (CC BY 2.5)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:22:42Zoai:sedici.unlp.edu.ar:10915/104294Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:22:43.069SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
title Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
spellingShingle Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
Villas Boas, Julia Dias
Ciencias Veterinarias
Ciencias Agrarias
Animal behavior
Alternative medicine
Welfare
Equine
title_short Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
title_full Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
title_fullStr Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
title_full_unstemmed Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
title_sort Acupuncture affects autonomic and endocrine but not behavioural responses induced by startle in horses
dc.creator.none.fl_str_mv Villas Boas, Julia Dias
Martins Dias, Daniel Penteado
Trigo, Pablo Ignacio
dos Santos Almeida, Norma Aparecida
de Almeida, Fernando Queiroz
de Madeiros, Magda Alves
author Villas Boas, Julia Dias
author_facet Villas Boas, Julia Dias
Martins Dias, Daniel Penteado
Trigo, Pablo Ignacio
dos Santos Almeida, Norma Aparecida
de Almeida, Fernando Queiroz
de Madeiros, Magda Alves
author_role author
author2 Martins Dias, Daniel Penteado
Trigo, Pablo Ignacio
dos Santos Almeida, Norma Aparecida
de Almeida, Fernando Queiroz
de Madeiros, Magda Alves
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Veterinarias
Ciencias Agrarias
Animal behavior
Alternative medicine
Welfare
Equine
topic Ciencias Veterinarias
Ciencias Agrarias
Animal behavior
Alternative medicine
Welfare
Equine
dc.description.none.fl_txt_mv Startle is a fast response elicited by sudden acoustic, tactile, or visual stimuli in a variety of animals and in humans. As the magnitude of startle response can be modulated by external and internal variables, it can be a useful tool to study reaction to stress. Our study evaluated whether acupuncture can change cardiac autonomic modulation (heart rate variability); and behavioural (reactivity) and endocrine (cortisol levels) parameters in response to startle. Brazilian Sport horses (n = 6) were subjected to a model of startle in which an umbrella was abruptly opened near the horse. Before startle, the horses were subjected to a 20-minute session of acupuncture in acupoints GV1, HT7, GV20, and BL52 (ACUP) and in nonpoints (NP) or left undisturbed (CTL). For analysis of the heart rate variability, ultrashort-term (64 s) heart rate series were interpolated (4 Hz) and divided into 256-point segments and the spectra integrated into low (LF; 0.01–0.07 Hz; index of sympathetic modulation) and high (HF; 0.07–0.50 Hz; index of parasympathetic modulation) frequency bands. Acupuncture (ACUP) changed the sympathovagal balance with a shift towards parasympathetic modulation, reducing the prompt startle-induced increase in LF/HF and reducing cortisol levels 30 min after startle. However, acupuncture elicited no changes in behavioural parameters.
Instituto de Genética Veterinaria
description Startle is a fast response elicited by sudden acoustic, tactile, or visual stimuli in a variety of animals and in humans. As the magnitude of startle response can be modulated by external and internal variables, it can be a useful tool to study reaction to stress. Our study evaluated whether acupuncture can change cardiac autonomic modulation (heart rate variability); and behavioural (reactivity) and endocrine (cortisol levels) parameters in response to startle. Brazilian Sport horses (n = 6) were subjected to a model of startle in which an umbrella was abruptly opened near the horse. Before startle, the horses were subjected to a 20-minute session of acupuncture in acupoints GV1, HT7, GV20, and BL52 (ACUP) and in nonpoints (NP) or left undisturbed (CTL). For analysis of the heart rate variability, ultrashort-term (64 s) heart rate series were interpolated (4 Hz) and divided into 256-point segments and the spectra integrated into low (LF; 0.01–0.07 Hz; index of sympathetic modulation) and high (HF; 0.07–0.50 Hz; index of parasympathetic modulation) frequency bands. Acupuncture (ACUP) changed the sympathovagal balance with a shift towards parasympathetic modulation, reducing the prompt startle-induced increase in LF/HF and reducing cortisol levels 30 min after startle. However, acupuncture elicited no changes in behavioural parameters.
publishDate 2015
dc.date.none.fl_str_mv 2015-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/104294
url http://sedici.unlp.edu.ar/handle/10915/104294
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://hdl.handle.net/11336/11534
info:eu-repo/semantics/altIdentifier/issn/1741-4288
info:eu-repo/semantics/altIdentifier/doi/10.1155/2015/219579
info:eu-repo/semantics/altIdentifier/hdl/11336/11534
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar/
Creative Commons Attribution 2.5 Argentina (CC BY 2.5)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar/
Creative Commons Attribution 2.5 Argentina (CC BY 2.5)
dc.format.none.fl_str_mv application/pdf
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collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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