Thesis (M.Ed.)--University of Hong Kong, 1997. / Includes bibliographical references (leaves 82-89). Also available in print.

Thesis (Ph. D.)--University of Kansas, 2005. / Includes bibliographical references (leaves 134-146). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

Thesis (Ph. D.)--University of Kansas, 2005. / Includes bibliographical references (leaves 134-146)

Magister Scientiae (Physiotherapy) - MSc(Physio) / Physical inactivity is recognised as a major risk factor for non-communicable diseases such as hypertension, cardiovascular disease, diabetes and cancer. Current recommendations for participation in physical activity are 30 minutes or more of moderate-intensity physical activity on most, but preferably all days of the week. The aim of the study was to determine the effect of a physical activity programme on weight, blood pressure, body mass index and body fat classification among high school learners through a short-term physical activity intervention programme. / South Africa

The purpose of this study was to examine motivational factors that would increase middle and high school students participation in physical education. This study is intended to better understand what factors students lack in order for participation in physical education activities and to stress the importance of physical education acitivity for a healthy lifestyle.

It is well known that engaging in physical activity (PA) reduces the risk of developing non-communicable diseases and improves general health. However, at the time of this research, less than half of the UK population met the recommended levels of PA (DH, 2010). Physical activity referral schemes (PARS) are one of the interventions available in primary care (NICE, 2006a) for disease prevention and health improvement, despite a high dropout rate (Gidlow, 2005) and unknown long-term effectiveness (Pavey et al., 2011). The main aim of the four studies presented in this thesis was to explore the adherence and behaviour change towards PARS in Northamptonshire. The first study measured the long-term change in PA levels after participation in Activity on Referral (AOR). The key outcome was a significant increase in self-reported long-term PA levels (mean difference 1000 MET minutes/week) for 105 adhering participants from a total of 2228 participants. One in every 21 referred individuals self-reported an increase in PA at 12 months. To explore the high levels of non-adherence, an interpretative phenomenological analysis (IPA; Smith, 1996) was conducted with seven non-adhering AOR participants. The findings showed that being listened to at the point of referral, a range of positive experiences during the induction, alternative opportunities to increase activity, and potential to re-engage in PARS were some of the factors that enhanced adherence. Even though currently the key behaviour change measure for a PA intervention is an increase in PA, there is no gold standard self-reporting PA measure. Therefore, the third study was a comparison that tested the applicability of the new General Practice Physical Activity Questionnaire (GPPAQ) and the internationally validated International Physical Activity Questionnaire (IPAQ). The GPPAQ is recommended to be used as a screening tool by health professionals for the latest PARS called Let‟s Get Moving (LGM). There was a significantly weak association between IPAQ and GPPAQ. Hence, the GPPAQ is only recommended to be used as a PA screening tool and not for evaluating PA levels for PARS research studies. The final study was based on the new LGM physical activity care pathway which included a brief intervention using Motivational Interviewing (MI), a communication style that elicits the individuals‟ ambivalence regarding PA. Eight out of 21 participants self-reported a PA increase at 6 months and the MI used during the PARS was coded at beginner level. The two PARS included in this thesis were compared for adherence; LGM adherence was 65% compared to 23% AOR adherence at 3 months. In conclusion, this research has demonstrated that PA levels do increase for PARS participants in the long term, but the dropout rate can be concerning. By using a mixed-methods approach, the lived experience of participants enhances the understanding of reasons behind non-adherence. The comparative study involving LGM and AOR samples showed that interventions with elements of MI might be a better investment of commissioned resources.

Submitted in partial compliance with the requirements for the Master’s Degree in Technology: Chiropractic, Durban University of Technology, Durban, South Africa, 2015. / Background CrossFit is a workout program developed in 2000 which involves high intensity interval training coupled with resistance training elements of powerlifting and gymnastics. CrossFit has grown to include competitive events and there are an ever increasing number of affiliate gyms internationally. CrossFit’s greatest criticism is related to safety. There is limited published data on the exercise program. Aims The aims of this study were: to determine a retrospective cohort analysis of the demographic, injury and treatment profiles of participants at the 2013 United We Stand CrossFit Games who presented to the Durban University of Technology’s sports treatment facility; to determine the association, if any, between demographics and injury types; and, to provide any recommendations regarding the clinical record form used. Methods This study was a retrospective, quantitative, descriptive study on the chiropractic Student Sports Association’s report form in order to produce a retrospective cohort analysis of the injury and treatment profiles. Persons who made use of the chiropractic treatment facility at the 2013 United We Stand CrossFit Games were required to complete an informed consent form. A sixth year chiropractic student then filled in a Chiropractic Student Sports Association report form to record participant, complaint and treatment information. The study was not limited to competitors, but all persons who had access to the chiropractic treatment facility. These forms were then collated and data captured on the complaints which presented and were treated at the chiropractic treatment facility. Results The data collected revealed that 137 participants presented to the chiropractic treatment facility in 162 visits, with 263 complaints treated. The age range of the sample was between 18 and 43 years, with a mean age of 27.49 years. The majority of participants who presented to the CTF were competing athletes and just under half of the study sample reported to not having a history of previous injury. The study found that the lumbar region (20.9%), wrist/hand (14.4%), shin/calf (11.0%) and knee (10.2%) were the most commonly presented regions of complaint. The highest presenting mechanism of injury was that of overuse (22.4%) followed by running (19.0%). Acute injuries accounted for 72.20% of all injuries. With regards to diagnoses, myofascial trigger points made up 21.6% of all injuries, followed by muscle strains (19.7%). Facet syndromes of the spinal column accounted for 13% of diagnoses.It was shown that kinesiotape, manipulation, massage and ischemic compression were the top treatment interventions utilised. It was also shown that rest, ice and referrals were types of treatment that were not utilised. Due to statistical inconsistencies no significance tests were possible between demographic and injury characteristics. Recommendations were proposed in order to maximise the quality of data captured. Conclusion: The results add insight into the injuries presented and the treatment they acquired at the chiropractic treatment facility at a national CrossFit event. The most common injuries require investigation in both training and competitive environments. Various recommendations have been proposed for the record form used at sporting events in order to facilitate the collection of high quality data. / M

Thesis (MA)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: Engagement in physical activity is a basic human right and has numerous benefits for mental well-being. Persons with disabilities are often denied this right due to a number of barriers existing on physiological, psychological and structural levels. Adolescents with motor impairments may be even further marginalised due to the physical nature of their impairment as well as being at a developmental stage where their opinions may not be taken into account based on their age. Research that has been conducted in this area has mostly focused on the accounts of parents and teachers with little voice being given to adolescents. This research aimed to explore the lived experiences of a group of adolescents with cerebral palsy (CP) and their involvement in physical activity. The sample group consisted of 15 adolescents with CP between the ages of 12 and 18 in the Western Cape. Semi-structured interviews were conducted with the participants. In addition, three staff members were interviewed in order to add a secondary layer of data to the study. The interviews were analysed using interpretative phenomenological analysis which aims to give voice to participants and to make meaning of these accounts through interpretation by the researcher. Five major themes emerged from the data, namely: (1) “When they call me cripple” – what it means to have a motor impairment, (2) My experience of physical activity – perceived benefits, facilitators and barriers to participation, (3) Protective factors and coping strategies employed by participants to overcome barriers to participation, (4) What I would like and what I recommend, and (5) Perceptions of staff members at the school. These themes were discussed through a theoretical framework focused on the psychological and social factors which influence an individual’s participation in (or avoidance of) physical activity. While this theoretical framework is based on able-bodied persons, it was interesting to compare the experiences of adolescents with CP. The findings were further discussed in comparison to the relevant literature, although the purpose of qualitative research is not to necessarily generalise findings. This discussion yielded similarities and differences in terms of experiences relating to barriers and facilitators to participation. In addition, the findings supported the notion that adolescents with disabilities know what they want and have valuable input to offer in terms of their own experiences. Recommendations include further studies being conducted with groups of adolescents with disabilities other than CP as well as in other areas of South Africa. This could give a more rounded understanding of the experiences of adolescents with disabilities and could better inform projects that could be developed. / AFRIKAANSE OPSOMMING: Betrokkenheid in fisiese aktiwiteit is ‘n basiese mensereg en het verskeie voordele vir verstandelike gesondheid. Mense wat gestremdhede het word dikwels ontken van hierdie reg, as gevolg van getalle struikelblokke wat bestaan op fisiologiese, sielkundige en strukturele vlakke. Adolessente met motoriese gestremdhede mag dalk nog meer gemarginaliseerde word as gevolg van die fisiese aard van hul gestremdheid, asook die feit dat hulle in ‘n ontwikkelings stadium is waar hulle opinie dalk nie in ag geneem word nie weens hulle ouderdom. Navorsing wat uitgevoer is in hierdie gebied het meestal gefokus op die mededeling van die ouers en onderwysers en het min stem gegee aan die adolessente self. Hierdie navorsing het daarop gemik om die beleefde ervaringe van ‘n groep adolessente met serebrale verlamming en hulle betrokkenheid in fisiese aktiwiteit te ondersoek. Die monster groep het bestaan uit 15 adolessente met serebrale verlamming tussen die ouderdomme van 12 en 18 in die Wes-Kaap. Semi- gestruktureerde onderhoude was gedoen met die deelnemers. Bykomend is daar ook onderhoude gedoen met drie personeellede om ‘n sekondêre vlak van data aan die studie te verleen. Die onderhoude was geanaliseer deur gebruik te maak van interpreterende fenomenologiese analise, wat daarop gemik is om ‘n stem te gee aan die deelnemers en om sin te maak van hulle beskrywinge deur interpretasie van die navorser. Vyf groot temas het na vore gekom uit die data, naamliks: (1) Wanneer hulle my verlam noem – wat dit beteken om ‘n motorise gestremdheid te hê, (2) My ondervinding van fisiese aktiwiteit – waargenome voordele, fasiliteerders en struikelblokke tot deelname, (3) Beskermende faktore en hanteringsvaardighede wat gebruik word deur die deelnemers om struikelblokke tot deelname te oorkom, (4) Waarvan ek sal hou en wat ek voorstel, en (5) Persepsies van personeellede by die skool. Hierdie temas was bespreek deur ‘n teoreties raamwerk wat gefokus is op die sielkundige en sosiale faktore wat ‘n individu se deelname aan (of vermyding van) fisiese aktiwiteit beïnvloed. Alhoewel hierdie teoretiese raamwerk gebaseer is op ongestremde persone, was dit interessant om die ondervindinge te vergelyk met adolessente met serebrale verlamming. Die bevindinge is verder bespreek in vergelyking met relevante literatuur, al is die doel van kwalitatiewe navorsing nie noodwendig om bevindinge te veralgemeen nie. Die bespreking het ooreenkomste, so wel as verskille ten opsigte van ondervindinge met betrekking tot hindernisse en fasiliteerders tot deelname opgelewer. Daarbenewens verleen die bevindinge ook ondersteuning aan die idee dat adolessente met gestremdhede weet wat hulle wil hê en dat hulle waardevolle insette het om te lewer in terme van hulle eie ervarings. Aanbevelings sluit in dat daar verdere studies gedoen moet word met ‘n groep adolessente wat ‘n gestremdheid anders as serebrale verlamming het, asook om verdere studies te doen in ander areas van Suid-Afrika. Dit sal ‘n meer afgeronde begrip van die ondervindinge van adolessente met gestremdhede lewer en sal ook beter instaat wees om projekte in te lig wat dalk ontwikkel mag word.

Thesis (MScSportSc)--Stellenbosch University, 2004. / ENGLISH ABSTRACT: There is a universal concern about the rapid decline in the physical activity levels of children, particularly adolescent girls. There is evidence of an increase in juvenile obesity that is associated with numerous health risks. During adolescence the majority of psychological problems associated with obesity stem from a disturbance in the self-concept. The purpose of this study was to determine the relationship between fitness, body composition and physical selfperception of a sample of 167 adolescent girls (14-17 years), and to compare these results with the results of similar studies from around the world. The results show a significant positive relationship (r = 0.47; P < 0.01) between levels of cardiorespiratory fitness and physical self-perception and significant negative relationships between percentage body fat and physical self-perception (r = -0.35; p < 0.01), as well as body composition and cardiorespiratory fitness (r = -0.47; P < 0.01). The results clearly illustrate the current prevalence of obesity associated with low cardiorespiratory fitness (due to inactivity) and low selfperception. The importance of being physically active for the physical and psychological well-being of adolescents is a valuably preventive and treatment measure. / AFRIKAANSE OPSOMMING: Die bekommernis oor die toenemende afname in die fisieke aktiwiteitsvlakke van kinders, veral adolessente meisies, blyk 'n universele verskynsel te wees. Bewyse is gevind van 'n toename in obesiteit by kinders wat verband hou met verskeie gesondheidsrisikos. Tydens adolessensie word die meeste sielkundige probleme wat verband hou met obesiteit deur 'n versteuring in die selfkonsep veroorsaak. Die doel van hierdie studie was om vas te stel wat die verband tussen fiksheid, liggaamsamestelling en fisieke selfpersepsie is. Die steekproef het bestaan uit 167 adolessente meisies (14 - 17 jaar oud) en hierdie resultate is vergelyk met die resultate van soortgelyke studies van regoor die wêreld. Die resultate toon 'n beduidend positiewe verband (r = 0.47; P < 0.01) tussen kardiorespiratoriese fiksheidsvlakke en fisieke selfpersepsie vlakke en beduidend negatiewe verbande tussen liggaamsvetpersentasie en selfpersepsie (r = -0.35; P < 0.01) sowel as liggaamsamestelling en kardiorespiratoriese fiksheid (r = -0.47; P < 0.01). Die resultate toon dat die voorkoms van obesiteit met lae kardiorespiratoriese fiksheid (as gevolg van 'n gebrek aan fisieke aktiwiteit) en lae selfpersepsie verband hou. Die belangrikheid van fisieke aktiwiteit vir die fisieke en sielkundige welstand van adolessente is 'n waardevolle voorkomende en behandelingsmetode.

Thesis (MPhil)--University of Stellenbosch, 2003. / ENGLISH ABSTRACT: The objective of this study was to compare training and physiological variables in performance-matched 10 km female and male athletes in order to identify those factors allowing females to compensate for their lower haematocrit and higher % body fat, both of which are disadvantageous to performance. Eight well-trained competitive female runners and eight well-trained competitive male runners participated in the study. They were matched by performance in a controlled 10 km time trial in the field (TT10). Training was monitored in each athlete for seven consecutive days using heart rate monitoring and training diaries. Each athlete gave a muscle biopsy for histological and biochemical analysis. Four maximal tests, two flat and two gradient (8%), were completed by each athlete in order to determine V02max, maximum heart rate and peak treadmill speed (PTS) under each condition. Each athlete also completed two submaximal tests (one flat and one gradient) and a ten minute race pace test, in which the pace was determined by their TT10 performance. These allowed fractional utilization of V02max, HRmax and PTS to be determined, as well as economy. Training data revealed a much greater training volume, both distance run and duration of training, in female athletes (p < 0.05 for distance; p < 0.01 for duration). V02max expressed per kg body mass was significantly higher in males (p < 0.05), however, when expressed per FFM, no difference was found between genders. Female athletes had a significantly greater percent composition of type I fibres and males had significantly more type IIX fibres, possible explanation of gender difference in PTS and contributing factor to equal TT10. The relationships between training, performance and biochemical variables in either gender were very different. / AFRIKAANSE OPSOMMING: Die doel van die studie was om die oefening en fisiologiese veranderlikes in 10 km vroue en mans atlete, wat afgepaar was volgens prestasie, te vergelyk om die faktore te indentisifeer wat vroue toelaat om te kompenseer vir hulle lae haematokrit en hoë persent liggaamsmassa, wat albei nadelig is tot prestasie. Agt mededingende vroue hardlopers en agt mededingende mans hardlopers het aan die studie deelgeneem. Hulle was gepaar volgens prestasie in 'n gekontroleerde padwedloop (TTlO). Oefening was gemonitor vir elke atleet vir sewe opeenvolgende dae deur gebruik te maak van harttempo monitors en oefeningsdagboeke. Elke atlleet het 'n spierbiopsie gehad wat histologies en biochemies geanaliseer was. Vier maksimale toetse, twee met 'n gradiënt van 0° en twee met 'n gradiënt van 5° (8%) was deur elke atleet voltooi om V02maks,maksimale harttempo en piek trapmeulspoed (PTS), vir beide situasies te bepaal. Hulle het ook almal twee submaksimale toetse gedoen (een teen 0° gradiënt en een teen 5° gradiënt) sowel as 'n tien minuut wedlooppas toets. Fraksionele benutting van V02maks,HRmaksen PTS was hiervan bepaal asook die ekonomie van elke atleet. Oefeningshoeveelheid ten opsigte van afstand en duur van oefening was baie hoër in vroue atlete (p < 0.05 vir afstand; p < 0.01 vir duur). V02maks uitgedruk per kg liggaamsmassa was aansienlik hoër in mans atlete (p < 0.05), maar uitgedruk per vetvrye massa (FFM) was daar geen verskil tussen geslagte. Vroue atlete het 'n merkwaardige hoër persentasie tipe I spiervesels gehad terwyl mans atlete 'n merkwaardige hoer persentasie tipe IIX spiervesels 'gehad het. Dit mag dalk 'n mootlike verklaring vir die geslagsverskil in PTS en 'n bydraende faktor tot gelyke TTlO wees. Verskillende verhoudings tussen oefening, prestasie en biochemiese veranderlikes was in die twee geslagte gesien.