Anterior Knee Pain Scale (AKPS): structural and criterion validity in Brazilian population with patellofemoral pain.

Purpose: To identify the best internal structure of the Brazilian version of the Anterior Knee Pain Scale (AKPS), comparing different instrument structures (structural validity) and correlating the scores of the versions (criterion validity).

Methods: We included Brazilian volunteers, aged ≥ 18 years, with patellofemoral pain (PFP) for at least 3 months. We used the confirmatory factor analysis and considered the following fit indices: chi-square/degrees of freedom (DF), comparative fit index (CFI), Tucker-Lewis index (TLI), root mean square error of approximation (RMSEA).

Unilateral seated shot-put test, muscle strength, and range of motion on recreational athletes with chronic shoulder pain: Cross-sectional study.

Objective: To correlate the functional performance assessed by means of the Unilateral Seated Shot-Put Test (SSPT) with shoulder muscle strength, range of motion (ROM), and handgrip strength in recreational athletes with chronic shoulder pain.

Methods And Materials: The sample was composed of recreational athletes with nonspecific pain in the dominant shoulder ≥3 months, both sexes, aged between 18 and 45 years. We diagnosed shoulder pain by reporting pain intensity ≥3 points on the Numerical Rating Pain Scale and used the Shoulder Pain and Disability Index, Pain-Related Catastrophizing Thoughts Scale, and Baecke Questionnaire.

Reliability of the Heart Rate Variability Registered Through Polar Cardio Frequency Meter in Individuals With Chronic Low Back Pain.

Objective: The purpose of this study was to analyze the intra- and inter-examiner reliability of the analysis of heart rate variability (HRV) captured by a Polar cardio frequency meter in individuals with chronic nonspecific low back pain.

Methods: The study included 35 individuals with nonspecific low back pain, both sexes, aged 18 to 45. We used a Polar V800 cardio frequency meter to capture HRV in individuals in different positions, and we calculated the reliability through the intraclass correlation coefficient (ICC).

15-item Roland-Morris disability questionnaire for general pain (RMDQ-g): Structural validity and criterion validity on Brazilian patients with chronic pain.

Background: Roland-Morris Disability Questionnaire for general pain (RMDQ-g) is an instrument adapted to assess disability in patients with pain in any region of the body.

Objective: To perform the structural and criterion validity of the RMDQ-g in Brazilian patients with chronic pain.

Design: A cross-sectional study.

Comparison of the autonomic nervous system dysfunction between different chronic spine disorders: neck pain versus low back pain.

Objective: This study aims to compare heart rate variability (HRV) between patients with chronic neck pain and patients with chronic low back pain and to correlate the chronic pain variables with heart rate variability indices.

Methods: This is a cross-sectional study. We divided the sample into two groups: neck pain (n=30) and low back pain (n=30).

Fear of Return to Sport Scale (FRESS): a new instrument for use in injured professional or recreational athletes in rehabilitation.

Objective: To create, develop, and validate the Fear of Return to Sport Scale (FRESS) for injured professional or recreational athletes in rehabilitation.

Methods: This is a questionnaire validation study. To determine the structural and construct validity, 192 injured professional or recreational athletes of different sports modalities were included.

Measurement properties of the Brazilian version of the Copenhagen Neck Functional Disability Scale in patients with chronic neck pain.

Objective: To evaluate the measurement properties of the Brazilian version of the Copenhagen Neck Functional Disability Scale (CNFDS) in patients with chronic neck pain.

Methods: One hundred and five patients were included in the study. The structural validity of the CNFDS was assessed by exploratory and confirmatory factor analysis with the following fit indices: chi-square divided by degrees of freedom (chi-square/df), root mean square error of approximation (RMSEA), comparative fit index (CFI), and Tucker-Lewis index (TLI).

Brazilian Version of the Self-Estimated Functional Inability Because of Pain in Dancers: A Validation Study.

Objective: The purpose of this study was to measure the reliability, internal consistency, construct validity, and floor and ceiling effects of the Brazilian version of the Self-Estimated Functional Inability because of Pain (SEFIP-dance) instrument.

Methods: This was a questionnaire validation study. Both professional dancers and those who use dance as a recreational activity were included in the study.

Structural validity of the Japanese Orthopedic Association back pain evaluation questionnaire in individuals with chronic low back pain.

Objective: The main aim of this study was to evaluate the structural validity of the Brazilian version of the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ).

Methods: Individuals with chronic low back pain were included. The data collection of the study occurred by means of online platform.

Self-Estimated Functional Inability Because of Pain Questionnaire for Athletes: A Reliability and Construct Validity Study.

Objective: The purpose of this study was to measure the reliability, internal consistency, construct validity, and floor and ceiling effects of the Brazilian version of the Self-Estimated Functional Inability Because of Pain Questionnaire for athletes (SEFIP-sport).

Methods: This was a validity questionnaire study developed in a university community. Athletes or practitioners of any sport undertaking regular practice (weekly frequency of at least twice a week for at least 6 months), with the ability to read and write in Brazilian Portuguese, were included.

Reliability and Accuracy of 2-Minute Step Test in Active and Sedentary Lean Adults.

Objective: The purpose of this study was to evaluate the intrarater and interrater reliability of the 2-minute step test (2MST) in active and sedentary lean adults and to identify the test cutoff point to differentiate active from sedentary individuals.

Methods: This observational study involved 4 mixed-sex groups (each with 50 lean participants): group 1, sedentary and aged 18 to 24 years; group 2, active and aged 18 to 24 years; group 3, sedentary and aged 25 to 44 years; and group 4, active and aged 25 to 44 years. The 2MST was administered independently by 2 examiners (with 3 months' training) at 2 different times, with a 7-day interval.

Acute Effects of Resistance Exercise With Blood Flow Restriction in Elderly Women: A Pilot Study.

Aim: To compare the acute effects of two resistance exercise sessions with different partial blood flow restrictions (BFR) on hemodynamic parameters and cardiac autonomic modulation in older women with metabolic syndrome.

Methods: Thirty-nine older women (64.4 ± 4.

Seated Single-Arm Shot-Put Test to Measure the Functional Performance of the Upper Limbs in Exercise Practitioners With Chronic Shoulder Pain: A Reliability Study.

Objective: To measure the intra- and interrater reliability of the seated single-arm shot-put test (SSPT) in the functional performance of the upper limbs of regular physical exercise practitioners with shoulder pain.

Methods: This is a reliability study. Thirty individuals regularly practicing any sports modality that uses the upper limb effectively for at least 6 months, both sexes, ages between 18 and 30 years, with chronic shoulder pain were included.

Correlation Between Habitual Physical Activity and Central Sensitization, Pain Intensity, Kinesiophobia, Catastrophizing, and the Severity of Myogenous Temporomandibular Disorder.

Objective: We sought to correlate habitual physical activity with central sensitization, pain intensity, kinesiophobia, catastrophizing, and the severity of chronic myogenous temporomandibular disorder (TMD).

Methods: This was an observational study. Fifty-five individuals, male and female, aged 18 to 45 years, with pain for at least 3 months (chronic) related to myogenous TMD were included in the study.

Brazilian version of the Self-Estimated Functional Inability because of Pain questionnaire for musculoskeletal injuries relating to dance and sport: translation and cross-cultural adaptation.

Background: Self-Estimated Functional Inability because of Pain (SEFIP) is a questionnaire specifically designed to measure musculoskeletal pain or discomfort.

Objective: To perform translation and cross-cultural adaptation of the SEFIP for dancers (SEFIP-dance), for use in Brazilian Portuguese. In addition, as a secondary objective, we adapted the translated version of SEFIP-dance for use among athletes or exercise practitioners (SEFIP-sport).

Program of therapeutic exercises associated with electrotherapy in patients with chronic neck pain: Protocol for a randomized controlled trial.

Conservative treatment is the most common clinical management for the proper rehabilitation of patients with chronic neck pain, and there is a trend towards the use of therapeutic exercise. However, some uncertainty about the efficacy of therapeutic exercises remains, and it is necessary to conduct more studies with high methodological rigor, especially in regard to multimodal treatment, as in the combination of therapeutic exercises with electrotherapy. Thus, the objective of this study will be to evaluate the clinical effects of adding high- and low-frequency transcutaneous electrical nerve stimulation (TENS) in a program of specific therapeutic exercises for the treatment of patients with chronic neck pain.

Hypertension and functional capacities in community-dwelling older women: a cross-sectional study.

Purpose: The present study aimed to investigate the association between hypertension and physical/functional capacities in community-dwelling older females.

Materials And Methods: Older female volunteers were dichotomized in two groups: hypertensive (n = 134) and normotensive (n = 244). Volunteers had their medical records reviewed and underwent evaluations of anthropometric data (weight, height and body mass index) and of physical and functional capacities.

Thomas Kuhn's 'Structure of Scientific Revolutions' applied to exercise science paradigm shifts: example including the Central Governor Model.

According to Thomas Kuhn, the scientific progress of any discipline could be distinguished by a pre-paradigm phase, a normal science phase and a revolution phase. The science advances when a scientific revolution takes place after silent period of normal science and the scientific community moves ahead to a paradigm shift. I suggest there has been a recent change of course in the direction of the exercise science.

Fit-climbing test: a field test for indoor rock climbing.

The aim of this study was to develop an indoor rock-climbing test on an artificial wall (Fit-climbing test). Thirteen climbers (elite group [EG] = 6; recreational group [RG] = 7) performed the following tests: (a) familiarization in the Fit-climbing test, (b) the Fit-climbing test, and (c) a retest to evaluate the Fit-climbing test's reliability. Gas exchange, blood lactate concentration, handgrip strength, and heart rate were measured during the test.

The acute effects of varying strength exercises bouts on 5Km running.

This study investigated if there were acute interference effects of strength exercises on subsequent continuous and intermittent 5Km aerobic exercises. Eleven physically active males (23.1 ± 3.

Influence of high- and low-carbohydrate diet following glycogen-depleting exercise on heart rate variability and plasma catecholamines.

The purpose of this study was to investigate the effects of a short-term low- or high-carbohydrate (CHO) diet consumed after exercise on sympathetic nervous system activity. Twelve healthy males underwent a progressive incremental test; a control measurement of plasma catecholamines and heart rate variability (HRV); an exercise protocol to reduce endogenous CHO stores; a low- or high-CHO diet (counterbalanced order) consumed for 2 days, beginning immediately after the exercise protocol; and a second resting plasma catecholamine and HRV measurement. The exercise and diet protocols and the second round of measurements were performed again after a 1-week washout period.