Search results for "Sports"

Darba stress un biomehāniskie riska faktori profesionālajā sportā, to samazināšanas iespējas

2017

„Darba stress un biomehāniskie riska faktori profesionālajā sportā, to samazināšanas iespējas”. Darba autore: Ieva Tetere. Zinātniskais vadītājs: Dr.sc.admin., asoc.prof. H. Kaļķis. Darba apjoms ir 98 lpp., tajā ietvertas 10 tabulas, 36 attēli, 5 pielikumi un 34 literatūras avoti. Darba stresa un biomehānisko riska faktoru ietekmē profesionālie sportisti var izjust psiholoģiska rakstura diskomfortu un tikt pakļauti augstam sporta traumatisma riskam, bet Latvijā no darba aizsardzības aspekta tā ir maz pētīta tematika. Darbs sastāv no 4 daļām, kuru ietvaros veikta literatūras izpēte, izvēlēto metožu raksturojums, iegūto rezultātu analīze, izstrādāti priekšlikumi un aizsardzības pasākumi. Maģi…

Modulations of corticospinal excitability following rapid ankle dorsiflexion in skill- and endurance-trained athletes

2022

Abstract Purpose Long-term sports training, such as skill and endurance training, leads to specific neuroplasticity. However, it remains unclear if muscle stretch-induced proprioceptive feedback influences corticospinal facilitation/inhibition differently between skill- and endurance-trained athletes. This study investigated modulation of corticospinal excitability following rapid ankle dorsiflexion between well-trained skill and endurance athletes. Methods Ten skill- and ten endurance-trained athletes participated in the study. Corticospinal excitability was tested by single- and paired-pulse transcranial magnetic stimulations (TMS) at three different latencies following passive rapid ankl…

Does Stretching Training Influence Muscular Strength? A Systematic Review With Meta-Analysis and Meta-Regression

2022

Thomas, E, Ficarra, S, Nunes, JP, Paoli, A, Bellafiore, M, Palma, A, and Bianco, A. Does stretching training influence muscular strength? A systematic review with meta-analysis and meta-regression. J Strength Cond Res XX(X): 000-000, 2022-This aim of this study was to review articles that performed stretching training and evaluated the effects on muscular strength. Literature search was performed using 3 databases. Studies were included if they compared the effects on strength following stretching training vs. a nontraining control group or stretching training combined with resistance training (RT) vs. an RT-only group, after at least 4 weeks of intervention. The meta-analyses were performe…

Longbordistu subkultūra Rīgā

2018

Bakalaura darba tēma ir „Longbordistu subkultūra Rīgā”. Tēmas aktualitāte –longbordošana un longbordisti vispār līdz šīm nav pētīti, kā arī Rīgā longbords ir kļuvis populārs un aktuāls pēdējos četrus gadus. Tāpēc šī pētījuma mērķis ir izpētīt longbordistus kā subkultūru Rīgā. Pētnieciskais jautājums ir: Kādas ir longbordistu galvenās subkultūras iezīmes? Teorētiskajā daļā tiks apskatīts subkultūras jēdziens, tiks skaidrots dzīvesstila jēdziens, longbordošanas vēsturiskā attīstība, longborda braukšanas veidi, kā arī, kā longbords iekļaujas starp ekstrēmiem sporta veidiem. Bakalaura darbā izmantotas kvalitatīvās metodes. Tika veiktas intervijas – padziļinātās ar ekspertiem, daļēji strukturētā…

Sport Science on Women, Women in Sport Science

2019

A Polygenic Risk Score for Hand Grip Strength Predicts Muscle Strength and Proximal and Distal Functional Outcomes among Older Women

2022

Purpose Hand grip strength (HGS) is a widely used indicator of overall muscle strength and general health. We computed a polygenic risk score (PRS) for HGS, and examined, whether it predicted muscle strength, functional capacity and disability outcomes. Methods Genome-wide association study summary statistics for HGS from the Pan-UK Biobank was utilized. PRSs were calculated in the Finnish Twin Study on Aging (N = 429 women, 63–76 years). Strength tests included HGS, isometric knee extension, and ankle plantar flexion strength. Functional capacity was examined with the Timed Up and Go, six-minute and 10-meter walk tests, and dual-task tests. Disabilities in the basic (ADL) and instrumental …

Perfectionism and performance-related psychobiosocial states: The mediating role of competition appraisals.

2022

Using the multi-states (MuSt) theory as a framework, the present study focused on the individual (personality) antecedents of psychobiosocial states. Psychobiosocial states comprise emotional subjective experiences and their correlates (cognitive, motivational, volitional, bodily, motor-behavioural, operational, and communicative), that can be functional for performance (helpful) or dysfunctional (harmful). Specifically, we examined the relationships between two perfectionism dimensions (perfectionistic strivings and concerns) and functional and dysfunctional psychobiosocial states. The hypothesised mediational role of competitive appraisals was also tested. Participants (N = 271, 138 femal…

Motives for competitive sports participation in masters track and field athletes : Impact of sociodemographic factors and competitive background

2022

Objectives Masters athletes due to their lifelong engagement in sport represent a unique group to study motivation for regular physical activity, but there is less scientific data on the sport motives in masters athletes. Therefore, the aim of this study was to evaluate the association of age, sex, education, nationality, competitive background and training amount with sport motives of masters track and field athletes. Methods 811 (254 women) athletes aged 35–89 years participated in European Veterans Athletics Championships in the year of 2000. Sport motives were assessed with a questionnaire and categorized into1) well-being, 2) competitive and performance 3) health and fitness motives. R…

Effects of a home-based, exergaming intervention on physical function and pain after total knee replacement in older adults : a randomised controlled…

2023

ObjectivesTo investigate the effects of 4 months of customised, home-based exergaming on physical function and pain after total knee replacement (TKR) compared with standard exercise protocol.MethodsIn this non-blinded randomised controlled trial, 52 individuals aged 60–75 years undergoing TKR were randomised into an exergaming (intervention group, IG) or a standard exercising group (control group, CG). Primary outcomes were physical function and pain measured before and after (2 months and 4 months) surgery using the Oxford Knee Score (OKS) and Timed Up and Go (TUG) test. Secondary outcomes included measures of the Visual Analogue Scale, 10m walking, short physical performance battery, iso…

Hemoglobin mass and performance responses during 4 weeks of normobaric “live high–train low and high”

2023

Purpose To investigate whether 4 weeks of normobaric “live high–train low and high” (LHTLH) causes different hematological, cardiorespiratory, and sea-level performance changes compared to living and training in normoxia during a preparation season. Methods Nineteen (13 women, 6 men) cross-country skiers competing at the national or international level completed a 28-day period (∼18 h day−1) of LHTLH in normobaric hypoxia of ∼2400 m (LHTLH group) including two 1 h low-intensity training sessions per week in normobaric hypoxia of 2500 m while continuing their normal training program in normoxia. Hemoglobin mass (Hbmass) was assessed using a carbon monoxide rebreathing method. Time to exhaust…