Publications by authors named "Weerapong Chidnok"

Purpose: To evaluate the feasibility of an active behavioural physiotherapy intervention (ABPI) and procedures to prevent the transition to chronicity in patients with acute non-specific neck pain (ANSNP).

Materials And Methods: A cluster-randomised double-blind (assessors and participants), parallel 2-arm (ABPI versus standard physiotherapy intervention [SPI]) pilot and feasibility clinical trial was conducted owing to a pre-specified published protocol. Six public hospitals were recruited and cluster-randomised (computer-generated randomisation with block sampling).

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Background: In developing countries, lower respiratory tract infection is a major cause of death in children, with severely ill patients being admitted to the critical-care unit. While physical therapists commonly use the manual hyperinflation (MHI) technique for secretion mass clearance in critical-care patients, its efficacy has not been determined in pediatric patients.

Objective: This study investigated the effects of MHI on secretion mass clearance and cardiorespiratory responses in pediatric patients undergoing mechanical ventilation.

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Objectives: Fear-avoidance beliefs questionnaire (FABQ) is a self-report, valid and reliable questionnaire to quantify fear and avoidance beliefs related to physical activity and work. Furthermore, it can be used to predict prolong disability in patients with non-specific neck pain. Although it was originally developed to manage patients with low back pain, it has also been studied in individuals with neck pain.

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Objective: Sedentary behavior is one of the risk factors for cardiometabolic diseases, including cardiovascular diseases, diabetes mellitus, and metabolic syndrome. High-intensity interval training (HIIT) is one effective way to reduce the risk of cardiometabolic diseases. This research studies the effects of cycling-based HIIT on vascular function and cardiorespiratory fitness in sedentary people.

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Background: There is no information about the exercise performances of the hemoglobin E trait (Hb EA), which is the second most prevalent hemoglobinopathy found in Southeast Asia and Mediterranean. The purpose of the present study was to compare both anaerobic and aerobic exercise performances between young male subjects with Hb EA and with normal hemoglobin (A2A).

Methods: One hundred and twenty-two subjects underwent Hb EA Test screening, which revealed the presence of 17 subjects with Hb EA and 105 subjects with A2A.

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We investigated the responses of intramuscular phosphate-linked metabolites and pH (as assessed by (31)P-MRS) during intermittent high-intensity exercise protocols performed with different recovery-interval durations. Following estimation of the parameters of the power-duration relationship, i.e.

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We tested the hypothesis that muscle high-energy phosphate compounds and metabolites related to the fatigue process would be recovered after exhaustion during recovery exercise performed below but not above critical power (CP) and that these changes would influence the capacity to continue exercise. Eight male subjects completed single-leg, knee-extension exercise to exhaustion (for ∼180 s) on three occasions, followed by a work-rate reduction to severe-intensity exercise, heavy-intensity exercise ( View Article and Find Full Text PDF

Purpose: We investigated the influence of pacing strategy on the work completed above critical power (CP) before exhaustion (W>CP) and the peak V˙O2 attained during high-intensity cycling.

Methods: After the determination of VO(2max) from a ramp incremental cycling (INC) test and the estimation of the parameters of the power-duration relationship for high-intensity exercise (i.e.

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We tested the hypothesis that incremental cycling to exhaustion that is paced using clamps of the rating of perceived exertion (RPE) elicits higher .VO2max values compared to a conventional ramp incremental protocol when test duration is matched. Seven males completed three incremental tests to exhaustion to measure .

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Purpose: The critical power (CP) model includes two constants: the CP and the W' [P = (W' / t) + CP]. The W' is the finite work capacity available above CP. Power output above CP results in depletion of the W' complete depletion of the W' results in exhaustion.

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Purpose: This study tested the relevance of the critical power (CP) model for explaining exercise tolerance during intermittent high-intensity exercise with different recovery intensities.

Methods: After estimation of CP and W' from a 3-min all-out test, seven male subjects completed, in randomized order, a cycle test to exhaustion at a severe-intensity constant-work-rate (S-CWR) and four cycle tests to exhaustion using different intermittent ("work-recovery") protocols (i.e.

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We investigated whether the characteristic slowing of pulmonary oxygen uptake (VO2) kinetics during "work-to-work" exercise is attributable to elevations in baseline metabolic rate (VO2) as opposed to the elevated baseline work rate, per se. We hypothesized that a step transition to a higher work rate from "unloaded" cycling, but with elevations in VO2 [and heart rate (HR)] reflective of a work-to-work transition, would result in a lengthened phase II time constant (τ(p)). Seven male subjects (mean ± SD age 27 ± 10 yr) completed 1) transitions to a high-intensity work rate from a moderate-intensity work rate (M→H) and 2) two consecutive bouts of high-intensity exercise (U→H and E→H, respectively) initiated from unloaded cycling, with the time separating the exercise bouts chosen such that the baseline VO2 for the second transition was similar to the baseline VO2 for the M→H transition.

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