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The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life / William T.B. Eddolls

Swansea University Author: William T.B. Eddolls

DOI (Published version): 10.23889/Suthesis.48137

Abstract

Reversing the decline in adolescents’ mental health has been identified as a priority, especially considering its links to quality of life (QoL). Given that physical activity and exercise have been suggested as potential methods to ameliorate poor mental health and QoL, high-intensity interval train...

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Published: 2018
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
URI: https://cronfa.swan.ac.uk/Record/cronfa48137
first_indexed 2019-01-10T14:00:58Z
last_indexed 2025-04-04T04:21:37Z
id cronfa48137
recordtype RisThesis
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spelling 2025-04-03T14:29:46.4168408 v2 48137 2019-01-10 The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life e84d0549c0b3eb05a401ad2c32cab9ef 0000-0002-9590-8817 William T.B. Eddolls William T.B. Eddolls true true 2019-01-10 Reversing the decline in adolescents’ mental health has been identified as a priority, especially considering its links to quality of life (QoL). Given that physical activity and exercise have been suggested as potential methods to ameliorate poor mental health and QoL, high-intensity interval training (HIIT) has been suggested as a time-effective means to improve conditions such as anxiety and depression, as well as QoL. Therefore, in collaboration with Commando Joe’s®, the aim of this thesis was to design, conduct and evaluate the impact of a HIIT intervention on adolescents’ mental health and QoL. Prior to the design element of this thesis, Study 1 investigated and confirmed a significant relationship between vigorous physical activity, the unstructured form of HIIT, physiological and psychological health and QoL. Subsequently, utilising amalgamated findings from previous formative research and the systematic review included within Chapter 3, a HIIT intervention was designed and conducted. Study 2 therefore examined the effect of the 6-month HIIT intervention on body mass index, physical activity, cardiorespiratory fitness, anxiety, depression and QoL in adolescents, however, no significant changes to mental well-being, physiological health or QoL were exhibited. Consequently, to identify areas for improvement for future research, Study 3 evaluated the HIIT intervention using thematically analysed focus-groups presented by pen profiles. Results indicated that HIIT was an enjoyable form of exercise for adolescents, however, to maximise participation, factors related to session timing, exercise activities, group composition, instructor and exercise progression and protocol should be accounted for. Overall, while HIIT did not improve mental health or QoL, no detrimental effects were noted. Advancing previous research, the present thesis provides support that HIIT is an enjoyable, feasible and time-efficient form of exercise, although further research is warranted to establish whether it can elicit improvements to mental health or QoL. E-Thesis High-intensity interval training, high-intensity exercise, physical health, physical activity, cardiometabolic fitness, body composition, mental health, anxiety, depression, quality of life, children, adolescents 31 12 2018 2018-12-31 10.23889/Suthesis.48137 A selection of third party content is redacted or is partially redacted from this thesis. COLLEGE NANME Engineering COLLEGE CODE Swansea University Doctoral Ph.D Commando Joe’s Fun and Fitness Ltd Not Required 2025-04-03T14:29:46.4168408 2019-01-10T11:49:59.5462800 Faculty of Science and Engineering School of Engineering and Applied Sciences - Sport and Exercise Sciences William T.B. Eddolls 0000-0002-9590-8817 1 0048137-10012019120934.pdf Eddolls_William_T_B_PhD_Thesis_Final_Redacted.pdf 2019-01-10T12:09:34.3530000 Output 3464986 application/pdf Redacted version - open access true 2019-01-09T00:00:00.0000000 true
title The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life
spellingShingle The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life
William T.B. Eddolls
title_short The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life
title_full The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life
title_fullStr The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life
title_full_unstemmed The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life
title_sort The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life
author_id_str_mv e84d0549c0b3eb05a401ad2c32cab9ef
author_id_fullname_str_mv e84d0549c0b3eb05a401ad2c32cab9ef_***_William T.B. Eddolls
author William T.B. Eddolls
author2 William T.B. Eddolls
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publishDate 2018
institution Swansea University
doi_str_mv 10.23889/Suthesis.48137
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Sport and Exercise Sciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Sport and Exercise Sciences
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description Reversing the decline in adolescents’ mental health has been identified as a priority, especially considering its links to quality of life (QoL). Given that physical activity and exercise have been suggested as potential methods to ameliorate poor mental health and QoL, high-intensity interval training (HIIT) has been suggested as a time-effective means to improve conditions such as anxiety and depression, as well as QoL. Therefore, in collaboration with Commando Joe’s®, the aim of this thesis was to design, conduct and evaluate the impact of a HIIT intervention on adolescents’ mental health and QoL. Prior to the design element of this thesis, Study 1 investigated and confirmed a significant relationship between vigorous physical activity, the unstructured form of HIIT, physiological and psychological health and QoL. Subsequently, utilising amalgamated findings from previous formative research and the systematic review included within Chapter 3, a HIIT intervention was designed and conducted. Study 2 therefore examined the effect of the 6-month HIIT intervention on body mass index, physical activity, cardiorespiratory fitness, anxiety, depression and QoL in adolescents, however, no significant changes to mental well-being, physiological health or QoL were exhibited. Consequently, to identify areas for improvement for future research, Study 3 evaluated the HIIT intervention using thematically analysed focus-groups presented by pen profiles. Results indicated that HIIT was an enjoyable form of exercise for adolescents, however, to maximise participation, factors related to session timing, exercise activities, group composition, instructor and exercise progression and protocol should be accounted for. Overall, while HIIT did not improve mental health or QoL, no detrimental effects were noted. Advancing previous research, the present thesis provides support that HIIT is an enjoyable, feasible and time-efficient form of exercise, although further research is warranted to establish whether it can elicit improvements to mental health or QoL.
published_date 2018-12-31T07:27:46Z
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score 11.0578165

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