Effects of maximal strength training on bone mineral density in people living with HIV and receiving anti-retroviral therapy: a pilot study
This study therefore aimed to determine the effects of a 12  weeks maximal strength training (MST) on BMD among PLWHIV in Blantyre, Malawi.MethodsTwenty-six PLWHIV with reduced BMD were randomised into a training group (TG,n = 15) and control group (CG,n = 11). The TG underwent 12 weeks of MST consisting of 4 sets of 3 to 5 repetitions at 85–90% of one repetition maximum (1RM) 3 times per week. The CG was advised to maintain their usual lifestyle. Measurements of BMD using dual-energy X-ray absorptiometry, 1RM using a squat machine, heart r ate using a heart rate monitor, wei...
Source: BMC Sports Science, Medicine and Rehabilitation - October 23, 2020 Category: Sports Medicine Source Type: research

Effects of a single mental chronometry training session in subacute stroke patients – a randomized controlled trial
ConclusionEven a single training session can modulate MC abilities and BBT motor execution in a task-specific way. Severe sensory deficits are associated with poorer motor performance and poorer MC ability, but do not have a negative impact on training-associated changes of mental chronometry. Studies with longer treatment periods should explore if the observed changes can further be expanded.Trial registrationDRKS,DRKS00020355, registered March 9th, 2020, retrospectively registered (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - October 22, 2020 Category: Sports Medicine Source Type: research

Postural control in top-level female volleyball players
ConclusionIt can be assumed that due to the high motor requirements of their sport discipline Polish female volleyball players have developed a unique posture control. On the court they have to distribute their sensory resources optimally between balance control and actions resulting from the specifics of the volleyball game. There are no clearly defined criteria for optimal postural strategies for elite athletes, but they rather vary depending on a given sport. The results of our research confirm this claim.Trial registrationThe tests were previously approved by the Bioethical Commission of the Chamber of Physicians in Op...
Source: BMC Sports Science, Medicine and Rehabilitation - October 20, 2020 Category: Sports Medicine Source Type: research

What is the optimal time-response window for the use of photobiomodulation therapy combined with static magnetic field (PBMT-sMF) for the improvement of exercise performance and recovery, and for how long the effects last? A randomized, triple-blinded, placebo-controlled trial
AbstractBackgroundThe optimal time-response window for photobiomodulation therapy (PBMT) using low-level laser therapy (LLLT) and/or light emitting diodes therapy (LEDT) combined with static magnetic fields (sMF) before physical activity still was not fully investigated. The aim of the present study was to investigate the better of four time-response windows for PBMT combined with sMF (PBMT-sMF) use before exercise in humans.MethodsA prospectively registered, randomized, triple-blinded (volunteers, therapists and assessors) placebo-controlled trial was carried out. Sixty healthy untrained male subjects were randomly alloca...
Source: BMC Sports Science, Medicine and Rehabilitation - October 19, 2020 Category: Sports Medicine Source Type: research

The effects of exergaming on pain, postural control, technology acceptance and flow experience in older people with chronic musculoskeletal pain: a randomised controlled trial
ConclusionOur findings support the potential of exergaming to alleviate pain and improve balance in older people with chronic musculoskeletal pain. Both forms of exercise are acceptable, intrinsically motivating and show evidence of benefit to older people with chronic musculoskeletal pain.Trial registrationClinicalTrials.gov Identifier:NCT04029285 (retrospectively registered, July 23, 2019) (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - October 9, 2020 Category: Sports Medicine Source Type: research

Evaluating the effects of behavior change training on the knowledge, confidence and skills of sport and exercise science students
ConclusionIt is feasible to train undergraduate students in particular components of behavior change support. Academic institutions should embed behavior change training into the allied health professional curriculum to ensure graduates are job ready with the knowledge, confidence and skills to support health related behavior change within the wider health system. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - October 5, 2020 Category: Sports Medicine Source Type: research

Flywheel squats versus free weight high load squats for improving high velocity movements in football. A randomized controlled trial
AbstractBackgroundHigh load (HL:>  85% of one repetition maximum (1RM)) squats with maximal intended velocity contractions (MIVC) combined with football sessions can be considered a relevant and time-efficient practice for maintaining and improving high velocity movements in football. Flywheel (FW) resistance exercise (RE) have re cently emerged with promising results on physical parameters associated with football performance.MethodsIn this randomized controlled trial over 6 weeks, 38 recreationally active male football players randomly performed RE with MIVCs two times per week as either 1) FW squats (n ...
Source: BMC Sports Science, Medicine and Rehabilitation - October 1, 2020 Category: Sports Medicine Source Type: research

Biomechanical conditioning of the motor unit transitory force decrease following a reduction in stimulation rate
ConclusionsHigh sensitivity to biomechanical conditioning indicates that the transitory force decrease is dependent on disturbances in the force transmission predominantly by collagen surrounding active muscle fibres. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - September 28, 2020 Category: Sports Medicine Source Type: research

Feasibility of a progressive protocol of high-intensity interval training for overweight/obese, sedentary African American women: a retrospective analysis
ConclusionAlbeit based on a limited number of participants, we found an attrition rate that was higher than what has been reported previously for HIIT (~  17.6%) when previously-sedentary overweight/obese AA women performed a protocol with work-interval intensity progressed from 75 to 90% HRR during a 14-week intervention. With respect to intensity, the precipitous drop for achievement of the target HR during the fourth stage (weeks 8–14) for tho se who did complete the protocol implies that it might be advisable to restrict work-interval intensity to
Source: BMC Sports Science, Medicine and Rehabilitation - September 20, 2020 Category: Sports Medicine Source Type: research

Cardiorespiratory effects of project energize: a whole-of region primary school nutrition and physical activity programme in New Zealand in 2011 and 2015
AbstractBackgroundSince 2004, Sport Waikato has delivered Project Energize, a through-school nutrition and physical activity program to primary schools in the Waikato. As part of the program ’s continued assessment and quality control, the programme was evaluated in 2011 and 2015. This paper’s aim was to compare the cardiorespiratory fitness (time to run 550 m (T550)) levels of children participating in Project Energize in 2011 and 2015.MethodsIn the 2011 evaluation of Project Energize, gender specific- T550-for-age Z scores (T550AZ) were derived from the T550 of 4832 Waikato children (2527 girls; 2305 b...
Source: BMC Sports Science, Medicine and Rehabilitation - September 16, 2020 Category: Sports Medicine Source Type: research

Effects of kinesio tape on kinesiophobia, balance and functional performance of athletes with post anterior cruciate ligament reconstruction: a pilot clinical trial
This study aimed to investigate the effects of kinesio taping on kinesiophobia, balance, and functional performance in athletes after anterior cruciate ligament reconstruction.MethodsThis randomized, placebo-controlled clinical trial was performed on 20 athletes with anterior cruciate ligament reconstruction (mean age 32.3  ± 6.2 years) at the time of return to sport. The subjects were randomly assigned to the kinesio tape (KT) group (n = 10) or placebo KT group (n = 10).While subjects under taped, the following outcomes were measured at baseline, 10 minutes after the...
Source: BMC Sports Science, Medicine and Rehabilitation - September 13, 2020 Category: Sports Medicine Source Type: research

Thai version of the foot function index: a cross-cultural adaptation with reliability and validity evaluation
ConclusionThe FFI-Th was a reliable and valid questionnaire to assess the foot function in a Thai population.Trial registrationNCT03161314 (08/05/2017). (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - September 9, 2020 Category: Sports Medicine Source Type: research

A lifestyle intervention during pregnancy to reduce obesity in early childhood: the study protocol of ADEBAR – a randomized controlled trial
DiscussionA better understanding of how lifestyle-related changes in the fetal environment might influence infants ’ outcome after two years of life could have a profound impact on the prevention and development of infants’ obesity.Trial registrationThe trial is registered at the German Clinical Trial Register (DRKS00007702); Registered on 10th of August 2016; retrospectively registeredhttps://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00007702 (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - September 9, 2020 Category: Sports Medicine Source Type: research

The combined effect of parathyroid hormone (1 –34) and whole-body vibration exercise on physical performance in OSteoporotic women (PaVOS study): a secondary analysis from a randomised controlled trial
ConclusionWBV may improve some short-term aspects of physical performance in severely osteoporotic postmenopausal women who are receiving teriparatide treatment.Trial RegistrationClinicalTrials.gov,ID:NCT02563353 (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - September 4, 2020 Category: Sports Medicine Source Type: research

The Phys-Can observational study : adjuvant chemotherapy is associated with a reduction whereas physical activity level before start of treatment is associated with maintenance of maximal oxygen uptake in patients with cancer
ConclusionThe results of the present study indicate that adjuvant chemotherapy is associated with a subsequent reduction in\( \dot{V}{O}_2\mathit{\max} \) in patients with cancer whereas MVPA before start of adjuvant treatment is positively associated with a higher\( \dot{V}{O}_2\mathit{\max} \) after end of adjuvant treatment. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - September 2, 2020 Category: Sports Medicine Source Type: research

The Effect of Social Norm-based Intervention with Observable Behaviour on Physical Activity among Adolescents: A Randomized Controlled Trial
ConclusionsOur findings indicated that the effect of providing descriptive norms messages containing personal identification on physical activity promotion was not evident in the main analysis. Future studies may consider using a more relevant reference group to use social norms as a tool to increase physical activity among adolescents.Trial registrationClinicalTrials.gov -NCT03081013. Registered 15 Mar 2017-Retrospectively registered,https://clinicaltrials.gov/ct2/show/NCT03081013 (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - August 30, 2020 Category: Sports Medicine Source Type: research

Vibroarthrographic analysis of patellofemoral joint arthrokinematics during squats with increasing external loads
AbstractBackgroundThe patellofemoral joint (PFJ) provides extremely low kinetic friction, which results in optimal arthrokinematic motion quality. Previous research showed that these friction-reducing properties may be diminished due to the increase in articular contact forces. However, this phenomenon has not been analyzed in vivo during functional daily-living activities. The aim of this study was the vibroarthrographic assessment of changes in PFJ arthrokinematics during squats with variated loads.Methods114 knees from 57 asymptomatic subjects (23 females and 34 males) whose ages ranged from 19 to 26  years were ...
Source: BMC Sports Science, Medicine and Rehabilitation - August 26, 2020 Category: Sports Medicine Source Type: research

Relationship between Upper Quarter Y Balance Test performance and throwing proficiency in adolescent Olympic handball players
ConclusionsThere was only a minimal difference in performance of the YBT-UQ between the throwing and non-throwing arm and only weak if any relationships between throwing performance and stability/mobility of the upper extremities in adolescent Olympic handball players existed. Further research is needed to investigate whether the YBT-UQ is a useful tool to detect training-related improvements in measures of shoulder stability/mobility and functional performance. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - August 26, 2020 Category: Sports Medicine Source Type: research

Does photobiomodulation therapy combined to static magnetic field (PBMT-sMF) promote ergogenic effects even when the exercised muscle group is not irradiated? A randomized, triple-blind, placebo-controlled trial
AbstractBackgroundThe direct application of photobiomodulation therapy (PBMT) using low-level laser therapy (LLLT) and light emitting diodes (LEDs) combined with a static magnetic field (sMF) (PBMT-sMF) to target tissues is shown to improve muscle performance and recovery. Studies have reported possible PBMT effects when a local distant to the target tissue is irradiated. Notably, the extent of these effects on musculoskeletal performance and the optimal site of irradiation remain unclear, although this information is clinically important since these aspects could directly affect the magnitude of the effect. Therefore, we ...
Source: BMC Sports Science, Medicine and Rehabilitation - August 25, 2020 Category: Sports Medicine Source Type: research

Asymmetrical fatiguing of the gluteus maximus muscles in the elite short-track female skaters
ConclusionsTraining should thus be planned in a way that minimizes the risk of causing muscle myolectrical manifestations of fatigue asymmetry in skaters despite the typically asymmetrical muscle work during training on ice and competition, thus new training protocols should be developed or considered to decrease that asymmetry.Trial registrationThe tests were previously approved by the Bioethical Commission of the Chamber of Physicians in Opole. (Resolution No. 235 of 13 December 2016). (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - August 13, 2020 Category: Sports Medicine Source Type: research

Physical activity assessment by accelerometry in people with heart failure
ConclusionHF specific accelerometer intensity thresholds for inactivity and MVPA are lower than previously published thresholds based on healthy adults, due to lower resting metabolic rate and greater energy expenditure during daily living activities for HF patients.Trial registrationClinical trials.govNCT03659877, retrospectively registered on September 6th 2018. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - August 11, 2020 Category: Sports Medicine Source Type: research

The implementation of a physical activity intervention in adults with Obstructive Sleep Apnoea over the age of 50  years: a feasibility uncontrolled clinical trial
AbstractBackgroundObstructive Sleep Apnoea (OSA) is a risk factor for cardiovascular disease (CVD) and Type 2 diabetes (T2D). Observational studies suggested that OSA treatment might reduce CVD and T2D but RCTs failed to support these observations in part due to poor adherence to continuous positive airway pressure (CPAP). Physical activity (PA) has been shown to have favourable impact on CVD and the risk of T2D independent of its impact on weight and therefore might provide additional health gains to patients with OSA, whether or not adherent to CPAP.MethodsThe main aim of this study was to explore the feasibility of prov...
Source: BMC Sports Science, Medicine and Rehabilitation - August 7, 2020 Category: Sports Medicine Source Type: research

Effects of resistance training and turmeric supplementation on reactive species marker stress in diabetic rats
AbstractBackgroundType 1diabetes mellitus (T1DM) is a metabolic disease characterized by hyperglycemia and excessive generation of reactive oxygen species caused by autoimmune destruction of beta-cells in the pancreas. Among the antioxidant compounds,Curcuma longa (CL) has potential antioxidant effects and may improve hyperglycemia in uncontrolled T1DM/TD1, as well as prevent its complications (higher costs for the maintenance of health per patient, functional disability, cardiovascular disease, and metabolic damage). In addition to the use of compounds to attenuate the effects triggered by diabetes, physical exercise is a...
Source: BMC Sports Science, Medicine and Rehabilitation - August 5, 2020 Category: Sports Medicine Source Type: research

The effect of regular aerobic exercise on sleep quality and fatigue among female student dormitory residents
AbstractBackgroundEmerging research shows a high prevalence of fatigue and sleep problems among university students. The present study evaluates the effects of regular aerobic exercise on sleep quality and fatigue level among female students (ages 18 –26) who reside in dormitories.MethodsThis quasi-experimental study involving 67 participants consisted of one experimental group (i.e., assigned aerobic exercise) and one control group (i.e., not assigned aerobic exercise). Participants in the experimental group received three one-hour sessions aerobic exercise weekly ranging from mild to moderate intensity for eight-we...
Source: BMC Sports Science, Medicine and Rehabilitation - August 4, 2020 Category: Sports Medicine Source Type: research

Comparative study of physiologic characteristics between the newly compiled Bafa Wubu of tai chi and 24 form simplified tai chi
ConclusionThe newly compiled Bafa Wubu of Tai Chi is characterized by lower energy consumption than 24 form simplified Tai Chi.Trial registrationEthics Committee of Sports Science Experiment, Beijing Sport University-2018010H. Registered 19 June 2018 (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - July 28, 2020 Category: Sports Medicine Source Type: research

The effect of increasing heel height on lower limb symmetry during the back squat in trained and novice lifters
ConclusionsThis investigation highlights that although a degree of bilateral lower limb asymmetry is common in individuals performing back squats, the degree of this symmetry is largely unaffected by raising the heels. Differences in results for discrete and time-series symmetry analyses also highlight a key issue associated with relying solely on discrete data techniques to assess bilateral symmetry during tasks such as the back squat. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - July 24, 2020 Category: Sports Medicine Source Type: research

Evaluation of a sitting light volleyball intervention to adults with physical impairments: qualitative study using social –ecological model
ConclusionsThis study identified several themes relevant to the promotion of PWPI engagement with SLVB and demonstrated that adopting a multilevel approach to the intervention resulted in positive outcomes for participants. Playing SLVB is suitable and feasible for PWPI. The findings contribute to the understanding of the experiences PWPI had of the SLVB intervention, which is critical to the further development of SLVB as a physical activity and a sport. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - July 7, 2020 Category: Sports Medicine Source Type: research

High prevalence of low back pain among young basketball players with lower extremity pain: a cross-sectional study
ConclusionsLower extremity pain was associated with LBP among school-aged basketball players. Further research is needed to clarify the mechanism of this association, which will provide useful information for prevention and treatment of LBP among young basketball players. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - July 5, 2020 Category: Sports Medicine Source Type: research

What is the impact of fitness on injury risk during police academy training? A retrospective cohort study
ConclusionsThe results of this study suggest that a significant relationship between some PAT fitness components and injury risk exists during police recruit training. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - July 5, 2020 Category: Sports Medicine Source Type: research

Comparative surgical risk between type of trampoline (size and place) and type of patients (age and sex) in trampoline related injury: a systematic review and indirect meta-analysis
ConclusionIn trampoline related injuries, full size, park trampoline, children and females had higher surgery rates when compared to mini size, home trampoline, adult and male majority in indirect meta-analysis methods. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - July 5, 2020 Category: Sports Medicine Source Type: research

The feasibility of implementing high-intensity interval training in cardiac rehabilitation settings: a retrospective analysis
AbstractBackgroundCardiovascular disease is the leading cause of death worldwide. Notwithstanding the well-known benefits of cardiac rehabilitation (CR), adherence to CR remains low, particularly in women. High-intensity interval training (HIIT) has received specific attention as an emerging exercise-training paradigm that addresses frequently cited barriers to CR (i.e. lack of motivation/enjoyment and time, perceiving exercise regime as tiring/boring) and improves cardiovascular risk factors. Previous studies have examined the safety of HIIT in CR; there is little evidence on the feasibility of HIIT in CR. The aims of thi...
Source: BMC Sports Science, Medicine and Rehabilitation - June 28, 2020 Category: Sports Medicine Source Type: research

Injury surveillance in elite Paralympic athletes with limb deficiency: a retrospective analysis of upper quadrant injuries
ConclusionElite athletes with limb deficiency experience upper quadrant injuries, with glenohumeral joint the most frequently reported. The quality and consistency of data reported limits definitive conclusions, although findings highlight the importance of precision and accuracy in recording injury surveillance to enable implementation of effective injury prevention strategies. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - June 10, 2020 Category: Sports Medicine Source Type: research

Effect of high-intensity interval training in young heart transplant recipients: results from two randomized controlled trials
This study summarizes the findings of the youngest participants in two previous randomized controlled trials.MethodThis is a hypothesis-generating study reporting the main results from the youngest participants in two larger randomized controlled trials investigating the effect of high-intensity interval training (HIT). The article summarizes the main results from 28 young participants (
Source: BMC Sports Science, Medicine and Rehabilitation - June 3, 2020 Category: Sports Medicine Source Type: research

Correction to: One-repetition submaximal protocol to measure knee extensor muscle strength among older adults with and without sarcopenia: a validation study
An amendment to this paper has been published and can be accessed via the original article. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - May 25, 2020 Category: Sports Medicine Source Type: research

Force production during the sustained phase of Rugby scrums: a systematic literature review
ConclusionsThis review indicates an optimal individual body position for players to strive to achieve during scrummaging, consisting of a low body height (40% of stature) and large extended hip and knee angles (120 ° each). (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - May 24, 2020 Category: Sports Medicine Source Type: research

The effects of hypoxia on muscle deoxygenation and recruitment in the flexor digitorum superficialis during submaximal intermittent handgrip exercise
ConclusionHypoxic compared to normoxic HGE decreased SmO2 and induced lower mean power frequency in the FDS, during repetitive hand grip exercise however did not result in differences in task durations or tension-time indices. The fiber type composition of FDS, and high duty cycle and intensity may have contributed greater dependence on anaerobiosis. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - May 14, 2020 Category: Sports Medicine Source Type: research

Hop tests and psychological PROs provide a demanding and clinician-friendly RTS assessment of patients after ACL reconstruction, a registry study
ConclusionThe use of hop tests together with psychological PROs provides a clinician-friendly RTS test battery for assessment 1  year after ACL reconstruction as the passing rate was 19% when using 2 hop-tests combined with 2 PROs, compared with 29% when using 5 tests of MF requiring advanced testing equipment. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - May 12, 2020 Category: Sports Medicine Source Type: research

Reliability and validity of a novel Kinect-based software program for measuring a single leg squat
ConclusionsQinematic ™ shows a poor absolute reliability, and a substantial relative reliability, in measuring a SLS at the way down. This indicates that Qinematic™ should not be recommended for the use on an individual level, but it can possibly be used on a group level. The merged results of the construct validity study indicate that Qinematic™ at 6° of medial displacement can identify subjects with a knee over foot position. In summary, the use of the Qinematic™ net trajectory angle, which estimates the “line of best fit” cannot be recommended to assess a knee medial to foot posit...
Source: BMC Sports Science, Medicine and Rehabilitation - May 10, 2020 Category: Sports Medicine Source Type: research

Comparison of device-based physical activity and sedentary behaviour following percutaneous coronary intervention in a cohort from Sweden and Australia: a harmonised, exploratory study
AbstractBackgroundFew studies have measured device-based physical activity and sedentary behaviour following a percutaneous coronary intervention (PCI), with no studies comparing these behaviours between countries using the same methods. The aim of the study was to compare device-based physical activity and sedentary behaviour, using a harmonised approach, following a PCI on-entry into centre-based cardiac rehabilitation in two countries.MethodsA cross-sectional study was conducted at two outpatient cardiac rehabilitation centres in Australia and Sweden. Participants were adults following a PCI and commencing cardiac rehab...
Source: BMC Sports Science, Medicine and Rehabilitation - May 8, 2020 Category: Sports Medicine Source Type: research

Periodized resistance training for persistent non-specific low back pain: a mixed methods feasibility study
ConclusionPeriodized resistance training with weekly undulating periodization is a feasible training method for this group of individuals with persistent non-specific LBP. A randomized clinical trial should assess the efficacy of such an intervention.Trial registrationclinicaltrials.gov/ Identifier –NCT04284982, Registered on February 24th 2020. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - May 7, 2020 Category: Sports Medicine Source Type: research

One-repetition submaximal protocol to measure knee extensor muscle strength among older adults with and without sarcopenia: a validation study
This study ’s objective was to test the validity of a one-repetition submaximal strength protocol to measure dynamic knee extension strength in older adults with and without sarcopenia.MethodsNinety-four physically independent older adults (female:n = 64, 60 to 85 years; male:n = 29, 60 to 85 years) participated in this study in Brazil during 2016–2017. Sarcopenia was classified and isokinetic unilateral knee extension strength was measured at 60°/s. Bilateral dynamic knee extension strength was estimated with an extensor chair using one-repetition submaximal pro to...
Source: BMC Sports Science, Medicine and Rehabilitation - May 5, 2020 Category: Sports Medicine Source Type: research

Fear-avoidance beliefs are associated with exercise adherence: secondary analysis of a randomised controlled trial (RCT) among female healthcare workers with recurrent low back pain
AbstractBackgroundExercise is recommended for the treatment and management of low back pain (LBP) and the prevention of chronicity. Exercise adherence has been only modest in intervention studies among people with musculoskeletal pain. Fear-avoidance beliefs (FABs) are known to affect exercise adherence.The purpose was twofold: to examine which bio-psycho-social factors contributed to exercise adherence during a 6-month neuromuscular exercise intervention among female healthcare workers with recurrent LBP, and to investigate how exercising affects FABs at 6 and 12  months’ follow-up.MethodsSome 219 healthcare ...
Source: BMC Sports Science, Medicine and Rehabilitation - May 3, 2020 Category: Sports Medicine Source Type: research

The effect of Total resistance exercise vs. aquatic training on self-reported knee instability, pain, and stiffness in women with knee osteoarthritis: a randomized controlled trial
AbstractBackgroundKnee Instability (KI) is described as a sense of knee buckling, shifting, or giving way during the weight bearing activities. High prevalence (60 –80%) has been reported for KI amongst the patients with knee osteoarthritis (KOA). In this line, the present study targeted the effect of two interventions on self-reported KI and affected factors.MethodsIn this single blind, randomized, and controlled trial, 36 patients with radiographic grading (Kellgren –Lawrence ≥ II) of KOA were selected. Patients were divided into three groups namely, aquatic (n = 12), Total Resistance exercis...
Source: BMC Sports Science, Medicine and Rehabilitation - April 28, 2020 Category: Sports Medicine Source Type: research

The effect of a sand surface on physical performance responses of junior male handball players to plyometric training
AbstractBackgroundThe effects of 7  weeks plyometric training on a stable surface and on sand were compared in junior male handball players.MethodsA team of experienced players was divided randomly between three groups, undertaking a standard in-season regimen (C,n = 10), or supplementing this regimen by plyometric training on sand (PS,n = 11) or a stable surface (P, n = 10) for 7 weeks. Assessments included 20 m sprint times, change of direction tests (Modified change-of-direction T-test and Modified Illinois test), a repeated sprint T-test, jumping ability (s...
Source: BMC Sports Science, Medicine and Rehabilitation - April 24, 2020 Category: Sports Medicine Source Type: research

Comparison of muscle activation imbalance following core stability or general exercises in nonspecific low back pain: a quasi-randomized controlled trial
ConclusionsBoth exercise programs reduced pain and disability and made or kept trunk muscle activation imbalance to the left side. The effects of two exercises on pain, disability and antagonist coactivation or imbalance ratios were not different.Trial registrationThis study was registered in the Iranian Clinical Trial Center with the codeIRCT201111098035N1, Registered Jan 21, 2013. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - April 14, 2020 Category: Sports Medicine Source Type: research

Effect of inspiratory muscle-loaded exercise training on peak oxygen uptake and ventilatory response during incremental exercise under normoxia and hypoxia
AbstractBackgroundAlthough numerous studies have reported the effect of inspiratory muscle training for improving exercise performance, the outcome of whether exercise performance is improved by inspiratory muscle training is controversial. Therefore, this study investigated the influence of inspiratory muscle-loaded exercise training (IMLET) on peak oxygen uptake (VO2peak), respiratory responses, and exercise performance under normoxic (N) and hypoxic (H) exercise conditions. We hypothesised that IMLET enhances respiratory muscle strength and improves respiratory response, thereby improvingVO2peak and work capacity under ...
Source: BMC Sports Science, Medicine and Rehabilitation - April 14, 2020 Category: Sports Medicine Source Type: research

High-intensity interval training accelerates oxygen uptake kinetics and improves exercise tolerance for individuals with cystic fibrosis
ConclusionEight weeks of high-intensity interval training for patients with cystic fibrosis accelerated V ̇O2 kinetics and increased time to exhaustion. This provides some evidence that these patients may benefit from this type of exercise.Trial registrationThis study was retrospectively registered in the ISRTCN registry on 22/06/2019 (#ISRCTN13864650). (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - April 12, 2020 Category: Sports Medicine Source Type: research

Does the combination of photobiomodulation therapy (PBMT) and static magnetic fields (sMF) potentiate the effects of aerobic endurance training and decrease the loss of performance during detraining? A randomised, triple-blinded,  placebo-controlled trial
AbstractBackgroundPhotobiomodulation (PBMT) is a therapy that uses non-ionising forms of light, including low-level lasers and light-emitting diodes (LEDs) that may be capable of modulating cellular activity. Some biological processes may also interact with static magnetic fields (sMF), leading to modulatory effects on cells. Previous studies have verified that the combination of PBMT and sMF (PBMT/sMF) enhances the performance of individuals during aerobic training programs. The detraining period can cause losses in aerobic capacity. However, there is no evidence of the existence of any recourse that can decrease the effe...
Source: BMC Sports Science, Medicine and Rehabilitation - April 9, 2020 Category: Sports Medicine Source Type: research

Dose-response of resistance training for neck-and shoulder pain relief: a workplace intervention study
AbstractBackgroundMusculoskeletal disorders are highly prevalent among office workers, with strong evidence suggesting that workplace-based resistance training programs can prevent several upper extremity musculoskeletal disorders. The aim of the present study was to examine the dose-response relationship between resistance training frequency and pain relief among office workers with neck- and shoulder pain.MethodsThirty participants with mild to moderate neck- and shoulder pain attended a 16-week intervention starting with an eight-week control period followed by an eight-week training period. After the control period, th...
Source: BMC Sports Science, Medicine and Rehabilitation - March 31, 2020 Category: Sports Medicine Source Type: research

Effects of high intensity interval training on exercise capacity in people with chronic pulmonary conditions: a narrative review
ConclusionsHigh intensity interval training increases cardiorespiratory fitness and exercise capacity when compared with no exercise and produces a similar magnitude of change as continuous exercise in people with COPD. There is a paucity of studies exploring the effects of HIIT in other chronic pulmonary conditions. (Source: BMC Sports Science, Medicine and Rehabilitation)
Source: BMC Sports Science, Medicine and Rehabilitation - March 29, 2020 Category: Sports Medicine Source Type: research