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1.
Appl Ergon ; 98: 103589, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34563748

RESUMO

Whole-body powered exoskeletons (WB-PEXOs) can be effective in reducing the physical demands of heavy occupational work, yet almost no empirical evidence exists on the effects of WB-PEXO use. This study assessed the effects of WB-PEXO use on back and leg muscle activities during lab-based simulations of load handling tasks. Six participants (4M, 2F) completed two such tasks (load carriage and stationary load transfer), both with and without a WB-PEXO, and with a range of load masses in each task. WB-PEXO use reduced median levels of muscle activity in the back (∼42-53% in thoracic and ∼24-43% in lumbar regions) and legs (∼41-63% in knee flexors and extensors), and mainly when handling loads beyond low-moderate levels (10-15 kg). Overall, using the WB-PEXO also reduced inter-individual variance (smaller SD) in muscle activities. Future work should examine diverse users, focus on finding effective matches between WB-PEXO use and specific tasks, and identify applications in varied work environments.


Assuntos
Exoesqueleto Energizado , Humanos , Perna (Membro) , Região Lombossacral , Músculo Esquelético , Projetos Piloto
3.
J Wound Care ; 30(Sup11): S1-S25, 2021 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-34756097

RESUMO

This consensus document is endorsed by The Queen's Nursing Institute (QNI) and The Queen's Nursing Institute Scotland (QNIS).


Assuntos
Enfermagem em Saúde Comunitária , Perna (Membro) , Humanos , Escócia
4.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 43(5): 822-826, 2021 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-34728046

RESUMO

With the wide application of vascular Doppler ultrasound as well as the improvement of instrument precision and personnel operation practice,calf muscular venous thrombosis(CMVT)has been more and more frequently diagnosed among patients,becoming a common clinical disease.However,it is controversial about the anticoagulant therapy for CMVT patients.In this article,we summarize the current research progress of anticoagulation therapy,aiming to provide reference for the treatment of CMVT.


Assuntos
Embolia Pulmonar , Trombose Venosa , Anticoagulantes/uso terapêutico , Humanos , Perna (Membro) , Músculo Esquelético , Trombose Venosa/diagnóstico por imagem , Trombose Venosa/tratamento farmacológico
5.
Sensors (Basel) ; 21(21)2021 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-34770384

RESUMO

A major cause of bone mass loss worldwide is osteoporosis. X-ray is considered to be the gold-standard technique to diagnose this disease. However, there is currently a need for an alternative modality due to the ionizing radiations used in X-rays. In this vein, we conducted a numerical study herein to investigate the feasibility of using microwave tomography (MWT) to detect bone density variations that are correlated to variations in the complex relative permittivity within the reconstructed images. This study was performed using an in-house finite-element method contrast source inversion algorithm (FEM-CSI). Three anatomically-realistic human leg models based on magnetic resonance imaging reconstructions were created. Each model represents a leg with a distinct fat layer thickness; thus, the three models are for legs with thin, medium, and thick fat layers. In addition to using conventional matching media in the numerical study, the use of commercially available and cheap ultrasound gel was evaluated prior to bone image analysis. The inversion algorithm successfully localized bones in the thin and medium fat scenarios. In addition, bone volume variations were found to be inversely proportional to their relative permittivity in the reconstructed images with the root mean square error as low as 2.54. The observations found in this study suggest MWT as a promising bone imaging modality owing to its safe and non-ionizing radiations used in imaging objects with high quality.


Assuntos
Perna (Membro) , Imageamento de Micro-Ondas , Densidade Óssea , Estudos de Viabilidade , Humanos , Processamento de Imagem Assistida por Computador
6.
Sensors (Basel) ; 21(21)2021 Nov 06.
Artigo em Inglês | MEDLINE | ID: mdl-34770692

RESUMO

Movement dynamics during running was previously characterized using a trunk-mounted accelerometer, and were associated with a history of overuse injuries. However, it remains unknown if these measures are also linked to the development of overuse injuries. The aim of this study was therefore to determine how movement dynamics alter in response to fatigue, and the possible link with developing lower-leg overuse injuries during a six-month follow-up period. Two hundred and eight movement science university students completed a 12-min all-out run while wearing a trunk-mounted accelerometer. Dynamic stability, dynamic loading and spatiotemporal measures were extracted from the accelerometer. Participants sustaining an injury within the 6-month period demonstrated significantly higher RMS ratio values in the vertical direction and lower RMS ratio values in the anteroposterior direction, and lower impact acceleration values in the anteroposterior direction in an unfatigued state compared to the uninjured group. They also demonstrated an increase in dynamic loading in the horizontal plane during the run. In addition, with running fatigue both groups exhibited changes in dynamic stability and loading measures. These results show the potential of using a single trunk-mounted accelerometer to detect changes in movement dynamics that are linked to lower-leg overuse injuries.


Assuntos
Transtornos Traumáticos Cumulativos , Perna (Membro) , Acelerometria , Fenômenos Biomecânicos , Transtornos Traumáticos Cumulativos/diagnóstico , Humanos , Estudos Prospectivos
7.
BMC Musculoskelet Disord ; 22(1): 952, 2021 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-34781944

RESUMO

BACKGROUND: High rates of musculoskeletal injuries such as plantar fasciitis and stress fractures have been observed among physically active military personnel. During service time, infantry soldiers use issued boots daily that should fit well and provide comfort to prevent injuries and decrease lower extremity pain effectively. The association of military boot comfort with overuse injuries remains unclear. This study investigates the relationship between the chosen military boot size, perceived boot comfort and lower leg overuse injury. METHODS: During the cross-sectional study, 227 (males, n = 213; females, n = 14) active-duty infantry soldiers at a mean age of 29.5 years old, and with an average service time of 7.2 years were assessed for a history of overuse injury, footprint length, appropriate shoe size, and footwear comfort. Males with a history of overuse injury (n = 32) and non-injured age-matched controls (n = 34) were selected for detailed testing and establishing the possible relationship between footwear comfort and lower leg overuse injury. RESULTS: No relationship was found between footwear comfort and a history of lower leg overuse injury. N = 38 (57.6%) of study subjects were wearing an inappropriate shoe size daily. Inappropriate shoe size usage affected footwear comfort ratings significantly. CONCLUSIONS: Study results showed that improper boot size was significantly related to comfort ratings but was not associated with a history of lower leg overuse injury.


Assuntos
Transtornos Traumáticos Cumulativos , Traumatismos da Perna , Militares , Adulto , Estudos Transversais , Transtornos Traumáticos Cumulativos/diagnóstico , Transtornos Traumáticos Cumulativos/epidemiologia , Feminino , Humanos , Perna (Membro) , Masculino , Sapatos
9.
Medicina (Kaunas) ; 57(11)2021 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-34833438

RESUMO

Open traumatic lesion of the popliteal artery is relatively rare. Ischemia time longer than 6 h and severity of limb ischemia have been shown to be associated with an increased risk of limb loss. Severe local infection is critical in the presence of major soft tissue trauma or open fractures. We report the case of a young female who suffered a traumatic transection of the popliteal artery associated with an open fracture of the distal tibia and fibula managed by direct vessel reconstruction with an end-to-end repair and skeletal stabilization initially with half-pin external fixation, then replaced by an Ilizarov circular frame. The patient had a very satisfactory outcome, but the fracture healed malunited, later corrected by open reduction and internal fixation with lag-screwing and a neutralization plate.


Assuntos
Salvamento de Membro , Fraturas da Tíbia , Fixadores Externos , Feminino , Humanos , Perna (Membro) , Artéria Poplítea/diagnóstico por imagem , Artéria Poplítea/cirurgia , Estudos Retrospectivos , Fraturas da Tíbia/diagnóstico por imagem , Fraturas da Tíbia/cirurgia , Resultado do Tratamento
10.
Medicina (Kaunas) ; 57(11)2021 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-34833440

RESUMO

Background and Objectives: Leg extension angle is important for increasing the propulsion force during gait and is a meaningful indicator for evaluating gait quality in stroke patients. Although leg extension angle during late stance might potentially also affect lower limb kinematics during the swing phase, the relationship between these two remains unclear. This study aimed to investigate the relationship between leg extension angle and knee flexion angle during pre-swing and swing phase in post-stroke gait. Materials and Methods: Twenty-nine stroke patients walked along a 16 m walkway at a self-selected speed. Tilt angles and acceleration of pelvis and paretic lower limb segments were measured using inertial measurement units. Leg extension angle, consisting of a line connecting the hip joint with the ankle joint, hip and knee angles, and increments of velocity during pre-swing and swing phase were calculated. Correlation analysis was conducted to examine the relationships between these parameters. Partial correlation analysis adjusted by the Fugl-Meyer assessment-lower limb (FMA-LL) was also performed. Results: On the paretic side, leg extension angle was positively correlated with knee flexion angle during the swing phase (r = 0.721, p < 0.001) and knee flexion angle and increments of velocity during the pre-swing phase (r = 0.740-0.846, p < 0.001). Partial correlation analysis adjusted by the FMA-LL showed significant correlation between leg extension angle and knee flexion angle during the swing phase (r = 0.602, p = 0.001) and knee flexion angle and increments of velocity during the pre-swing phase (r = 0.655-0.886, p < 0.001). Conclusions: Leg extension angle affected kinematics during the swing phase in post-stroke gait regardless of the severity of paralysis, and was similar during the pre-swing phase. These results would guide the development of effective gait training programs that enable a safe and efficient gait for stroke patients.


Assuntos
Perna (Membro) , Acidente Vascular Cerebral , Fenômenos Biomecânicos , Marcha , Humanos , Articulação do Joelho , Extremidade Inferior , Acidente Vascular Cerebral/complicações , Caminhada
11.
J Sports Sci ; 39(20): 2298-2304, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34743671

RESUMO

There is emerging evidence suggesting that muscle growth is not homogeneous through the muscle. The aim of the present study was to analyse the role of exercise selection in regional hypertrophy. Two randomly allocated groups with equal training volume and intensity performed squats in the smith machine (SMTH group) or the leg extension exercise (LEG group). Growth in proximal, central and distal regions of the rectus femoris (RF) and vastus lateralis (VL) muscles, jump height and body composition were analysed. Results show that the three regions of RF grew significantly in the participants of the LEG group (p < 0.05), while only the central region of VL grew significantly in the SMTH group (p < 0.05). In summary, this study confirms that exercise selection plays a role in regional hypertrophy. Whilst there may be still other factors that determine how muscles grow, it seems that the chosen exercises may be responsible of the differences observed in this study.


Assuntos
Exercício Físico/fisiologia , Músculo Esquelético/anatomia & histologia , Músculo Esquelético/fisiologia , Treinamento de Força/métodos , Aumento do Músculo Esquelético/fisiologia , Adaptação Fisiológica , Adulto , Antropometria , Quadril/fisiologia , Humanos , Perna (Membro)/fisiologia , Masculino , Adulto Jovem
12.
Wiad Lek ; 74(9 cz 2): 2340-2344, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34824181

RESUMO

OBJECTIVE: The aim: Facial and leg telangiectasia are usual cosmetic concern for females who have different skin phototypes and ages. Until now, the various treatments for these problem have frequently failed or led to unwanted side-effects. Based on approved pre-calculated doses, the present study highlights the clinical effects and safety of treatment after using the exact laser parameters from 1064-nm Nd: YAG laser. PATIENTS AND METHODS: Materials and methods: Twenty people with facial and leg telangiectasia underwent a single laser treatment, based on pre-calculated laser parameters for each case. RESULTS: Results: All subjects showed visible improvement, with 95-100% clearance of face telangiectasia directly after the first treatment, and 50-100% clearance of the lower extremity vessels after one to three days; with minimal side-effects. CONCLUSION: Conclusions: Treatment of facial and leg telangiectasia by using true, exact, and mathematically pre-calculated parameters of long pulse 1064 nm Nd: YAG laser was an effective and safe procedure of clearing face and leg telangiectasia.


Assuntos
Terapia a Laser , Telangiectasia , Face , Feminino , Humanos , Lasers , Perna (Membro) , Pele , Telangiectasia/cirurgia , Resultado do Tratamento
13.
J Int Med Res ; 49(11): 3000605211056783, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34816739

RESUMO

The ongoing global administration of vaccines for coronavirus disease 2019 (COVID-19) means that increasing numbers of patients are likely to present with post-vaccination complications. We describe the first reported case of neuralgic amyotrophy (NA) involving the lumbosacral plexus occurring after AstraZeneca COVID-19 vaccination. The patient presented with acute-onset leg paralysis following administration of the vaccine. Based on the clinical, electrodiagnostic, and radiologic findings, the patient was diagnosed with post-vaccination NA. We speculate that the COVID-19 vaccine elicited an immune-mediated inflammatory response to the injected antigen due to inflammatory immunity in a patient with predisposed susceptibility to NA.


Assuntos
Neurite do Plexo Braquial , COVID-19 , Neurite do Plexo Braquial/induzido quimicamente , Neurite do Plexo Braquial/diagnóstico , Vacinas contra COVID-19 , Humanos , Perna (Membro) , Plexo Lombossacral , Paraplegia , SARS-CoV-2 , Vacinação/efeitos adversos
14.
BMJ Case Rep ; 14(11)2021 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-34782374

RESUMO

Proximal muscle weakness of the legs is a symptom with a broad differential diagnosis. It is mainly caused by neuromuscular disorders and is often a diagnostic challenge. Here, we present a 73-year-old man with isolated proximal weakness of the legs due to lumbar root involvement on the basis of neuroborreliosis. After treatment with intravenous antibiotics he recovered completely. This is the first described case with isolated proximal muscle weakness of the legs due to neuroborreliosis. Despite the fact neuroborreliosis is a rare cause of proximal muscle weakness of the legs, clinicians should include it in their differential diagnosis, especially since it is a treatable condition.


Assuntos
Perna (Membro) , Neuroborreliose de Lyme , Administração Intravenosa , Idoso , Diagnóstico Diferencial , Humanos , Neuroborreliose de Lyme/complicações , Neuroborreliose de Lyme/diagnóstico , Neuroborreliose de Lyme/tratamento farmacológico , Masculino , Debilidade Muscular/etiologia
16.
Zhonghua Wei Zhong Bing Ji Jiu Yi Xue ; 33(9): 1105-1109, 2021 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-34839870

RESUMO

OBJECTIVE: To investigate the value of monitor carotid velocity time integral (VTI) and corrected flow time (FTc) by bedside ultrasound before and after passive leg raising (PLR) in predicting fluid responsiveness in critically ill patients. METHODS: A prospective observational study was conducted. Fifty patients with critical illness admitted to the First People's Hospital of Fuyang Hangzhou from January 2020 to March 2021 were enrolled. The clinical data including the gender, age, body mass index (BMI), acute physiology and chronic health evaluation II (APACHE II) score, and the duration of mechanical ventilation were recorded. The changes of carotid VTI and FTc were measured by bedside ultrasound, and the values of heart rate, mean arterial pressure (MAP), central venous pressure (CVP), stroke volume index (SVI), and intrathoracic blood volume index (ITBVI) were measured by pulse indicated continuous cardiac output (PiCCO) monitor before and after PLR in all patients. According to the changes of SVI before and after PLR, the patients were divided into fluid responsiveness positive group with the change rate of SVI ≥ 15% and fluid responsiveness negative group with the change rate of SVI < 15%. The differences in the values of VTI, FTc, CVP, and ITBVI obtained before and after PLR (ΔVTI, ΔFTc, ΔCVP and ΔITBVI) were calculated and then compared between the two groups. The predictive values of these indicators on fluid responsiveness in critically ill patients were analyzed by receiver operator characteristic curve (ROC curve), and their relationship with the difference in SVI (ΔSVI) obtained before and after PLR was evaluated by Pearson correlation analysis. RESULTS: Fifty patients were all enrolled in this study, in which 27 patients were fluid response and 23 patients were fluid nonresponse. Basic clinical data were not different between the two groups. The values of ΔVTI, ΔFTc, ΔCVP, and ΔITBVI in fluid response were all significantly higher than those in fluid nonresponse [ΔVTI (cm): 2.07±1.16 vs. 0.67±0.86, ΔFTc (ms): 4.00±6.10 vs. 0.01±2.26, ΔCVP (cmH2O, 1 cmH2O = 0.098 kPa): 1.67±1.14 vs. 1.00±1.17, ΔITBVI (mL/m2): 98±69 vs. 48±70, all P < 0.05]. ROC curve analysis showed that ΔVTI, ΔFTc, ΔCVP and ΔITBVI were all positive for predicting fluid responsiveness, their area under ROC curve (AUC) and 95% confidence interval (95%CI) were 0.870 (0.769-0.972), 0.694 (0.547-0.841), 0.684 (0.535-0.832) and 0.709 (0.564-0.855), respectively. When using ΔVTI 0.92 cm, ΔFTc 1.45 ms, ΔCVP 1.50 cmH2O and ΔITBVI 44.50 mL/m2 as the threshold values, the sensitivities were 96.3%, 63.0%, 44.4% and 81.5%, and the specificities were 65.2%, 78.3%, 82.6% and 56.5%, respectively, in which the predictive value of ΔVTI was the largest. Pearson correlation analysis indicated that ΔVTI, ΔFTc, ΔCVP, and ΔITBVI were positively associated with ΔSVI (r values were 0.971, 0.334, 0.440, 0.650, P values were 0.000, 0.018, 0.001, 0.000, respectively). CONCLUSIONS: Carotid ΔVTI and ΔFTc monitored by bedside ultrasound before and after PLR could be as effective as conventional indicators in predicting fluid responsiveness in critically ill patients, and the predictive value of ΔVTI was better than others.


Assuntos
Estado Terminal , Perna (Membro) , Pressão Venosa Central , Hidratação , Hemodinâmica , Humanos , Perna (Membro)/diagnóstico por imagem , Volume Sistólico
17.
Artigo em Inglês | MEDLINE | ID: mdl-34639656

RESUMO

Currently, sports activities require a high reaction speed, coordination, and balance, highlighting the relationship between proprioceptive control, visual control, and hand-eye coordination in youth. The present research assessed the proprioceptive control, reaction speed, and lower limb balance of youth from five different schools to identify the level of physical preparation of children in this direction. This prospective study was conducted between 1 January 2020 and 29 February 2020. A total of 107 healthy children (33 females and 74 males) with appropriate medical conditions, aged between 14 and 15 years, from five Romanian schools were included in the experiment. All children were assessed for visual control and reaction speed with the ruler drop test, and for lower limb balance, the standing stork test was used. Statistical analysis included descriptive statistics, data series distribution, and comparison of means and medians using specific statistical programs. Comparison of medians highlighted significant statistical differences in the standing stork test with eyes closed and the dominant leg compared with the nondominant leg (p = 0.0057). Males were compared to females at the nondominant leg (p = 0.0179); closed eyes were compared with opened eyes for the nondominant leg (p = 0.0175 and 0.0006) for the ruler drop test comparing the dominant hand with the nondominant hand (p = 0.0212). Children who engage in sports activities better integrated sensory information in motor action execution based on reaction speed and coordination with the nondominant hand.


Assuntos
Perna (Membro) , Equilíbrio Postural , Adolescente , Criança , Feminino , Humanos , Extremidade Inferior , Masculino , Estudos Prospectivos , Estudantes
18.
J Wound Care ; 30(10): 854-865, 2021 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-34644140

RESUMO

OBJECTIVE: This study evaluated the impact of four weeks of treatment with Prontosan Wound Irrigation Solution and Prontosan Wound Gel (B. Braun Medical Inc., US) on adults with hard-to-heal leg wounds. Overall change (weeks 1-5) in the Global Quality of Life scale (GQOL), changes in body, psyche and everyday life (EDL) quality of life (QoL) subscores, and changes in wound appearance and size after treatment were assessed. METHOD: In this prospective, open-label, single-arm, five-centre study, non-hospitalised patients with no more than two wounds below the knee were recruited into the study; wounds were ≥5cm2 and ≤50cm2 and present for ≥4 weeks. The investigator or a designee applied the wound solution and gel to the wounds at clinic visits, and patients/caregivers applied the wound solution and gel at home. Wound-QoL questionnaires were completed at the initial screening and at each week of treatment. Wound size and photographs were obtained at pre- and post-treatment during clinic visits. RESULTS: A total of 43 patients were enrolled in the study. Mean GQOL scores decreased by 1.11 (46.1%). Body, psyche and EDL decreased by 1.17 (60.0%), 1.26 (41.8%) and 1.00 (42.2%), respectively. Wounds also showed improvement in odour, appearance and size. Adverse events were mild in intensity and transient in nature. CONCLUSION: This study demonstrated marked improvement in the QoL of patients with hard-to-heal leg wounds below the knee during four weeks of treatment with the wound solution and gel. Wounds also showed improvement in odour, appearance and size, and the treatment solution and gel were well tolerated. DECLARATION OF INTEREST: B. Braun Medical Inc. funded the research and preparation of this article. AK, DV, CRC and WC are employees of B. Braun Medical Inc. AO and RS declare no conflict of interest.


Assuntos
Perna (Membro) , Qualidade de Vida , Adulto , Humanos , Estudos Prospectivos , Irrigação Terapêutica , Cicatrização
19.
Neuropsychologia ; 162: 108032, 2021 11 12.
Artigo em Inglês | MEDLINE | ID: mdl-34600001

RESUMO

Limb apparent motion perception (LAMP) refers to the illusory visual perception of a moving limb upon observing two rapidly alternating photographs depicting the same limb in two different postures. Fast stimulus onset asynchronies (SOAs) induce the more visually guided perception of physically impossible movements. Slow SOAs induce the perception of physically possible movements. According to the motor theory of LAMP, the latter perception depends upon the observer's sensorimotor representations. Here, we tested this theory in two independent studies by performing a central (study 1) and peripheral (study 2) manipulation of the body's sensorimotor states during two LAMP tasks. In the first sham-controlled transcranial direct current stimulation between-subject designed study, we observed that the dampening of left sensorimotor cortex activity through cathodal stimulation biased LAMP towards the more visually guided perception of physically impossible movements for stimulus pairs at slow SOAs. In the second, online within-subject designed study, we tested three participant groups twice: (1) individuals with an acquired lower limb amputation, either while wearing or not wearing their prosthesis (2) individuals with body integrity dysphoria (i.e., with a desire for amputation of a healthy leg) while sitting in a regular position or binding up the undesired leg (to simulate the desired amputation); (3) able-bodied individuals while sitting in a normal position or sitting on one of their legs. We found that the momentary sensorimotor state crucially impacted LAMP in individuals with an amputation and able-bodied participants, but not in BID individuals. Taken together, the results of these two studies substantiate the motor theory of LAMP.


Assuntos
Ilusões , Percepção de Movimento , Estimulação Transcraniana por Corrente Contínua , Amputação , Humanos , Perna (Membro)
20.
Sensors (Basel) ; 21(20)2021 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-34696005

RESUMO

The purpose of this work was to describe the leg-muscle-generated push force characteristics in sprint kayak paddlers for females and males on water. Additionally, the relationship between leg pushing force characteristics and velocity was investigated. Twenty-eight paddlers participated in the study. The participants had five minutes of self-chosen warm-up and were asked to paddle at three different velocities, including maximal effort. Left- and right-side leg extension force were collected together with velocity. Linear regression analyses were performed with leg extension force characteristics as independent variables and velocity as the dependent variable. A second linear regression analysis investigated the effect of paddling velocity on different leg extension force characteristics with an explanatory model. The results showed that the leg pushing force elicits a sinus-like pattern, increasing and decreasing throughout the stroke cycle. Impulse over 10 s showed the highest correlation to maximum velocity (r = 0.827, p < 0.01), while a strong co-correlation was observed between the impulse per stroke cycle and mean force (r = 0.910, p < 0.01). The explanatory model results revealed that an increase in paddling velocity is, among other factors, driven by increased leg force. Maximal velocity could predict 68% of the paddlers' velocity within 1 km/h with peak leg force, impulse over 10 s, and stroke rate (p-value < 0.001, adjusted R-squared = 0.8). Sprint kayak paddlers elicit a strong positive relationship between leg pushing forces and velocity. The results confirm that sprint kayakers' cyclic leg movement is a key part of the kayaking technique.


Assuntos
Músculo Esquelético/fisiologia , Esportes Aquáticos , Fenômenos Biomecânicos , Feminino , Humanos , Perna (Membro) , Masculino
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