Interferential current therapy (ICT) is an electrotherapeutic intervention that combines the advantages of high permeability from middle frequency currents and efficient tissue stimulation from low frequency currents, delivering the maximum current with high tissue permeability. The aim was to evaluate the effects of ICT on heart rate variability (HRV) and on pain perception in patients with non-specific chronic low back pain (NSCLBP). In the study, 49 patients with NSCLBP were randomly divided into an experimental (EG) and a sham group (SG). All participants received a single intervention, ICT, or simulated intervention. Outcome measures including baseline (sit-down position) and postintervention (prone position) pain, heart rate (HR), time domain parameter (rMSSD), diameters of the Poincaré plot (SD1, SD2), stress score (SS), and sympathetic/parasympathetic (S/PS) ratio were investigated. In both groups, significant statistical differences were found in perceived pain and in all HRV parameters except in HRmax. Between-group comparisons showed statistically significant differences in all variables except for HRmin and HRmean in favor of the experimental group. These changes reported an increase in parasympathetic activity (rMSSD) (p < 0.05) and a decrease in sympathetic activity (increase in SD2 and decrease in SS) (p < 0.001) and perceived pain (p < 0.001), with a greater size effect (η2 = 0.44) in favor of the experimental group. In conclusion, a single session of ICT can shift the autonomic balance towards increase parasympathetic dominance and decrease the sympathetic dominance and intensity of pain perceived by patients with NSCLBP.

Excessive foot pronation has been reported as being related to chronic low back pain symptoms and risk factors in sports-specific pathologies. Compensating custom-made foot orthotics treatment has not been entirely explored as an effective therapy for chronic low back pain (CLBP). This study aims to observe the effects of custom-made foot orthoses, in subjects with foot pronation suffering from CLBP. A total of 101 patients with nonspecific CLBP and a pronated foot posture index (FPI) were studied. They were randomized in two groups: an experimental one (n = 53) used custom-made foot orthotics, and the control group (n = 48) were treated with non-biomechanical effect orthoses. The CLBP was measured using the Oswestry Disability Index (ODI) Questionnaire and a visual analogue scale (VAS), both for lower back pain. The symptoms were evaluated twice, at first when the subject was included in the study, and later, after 4 weeks of treatment. The analysis of outcomes showed a significant decrease in CLBP in the custom-made foot orthoses participants group (p < 0.001 ODI; p < 0.001 VAS). These findings suggest that controlling excessive foot pronation by using custom-made foot orthoses may significantly contribute to improving CLBP.

The aim of the study was to assess and compare the knowledge of fourth-year medicine, physiotherapy (PT), nursing, and podiatry students in carpal and tarsal bone anatomy. A cross-sectional study was carried out. Based on a nonprobability convenience sampling, 177 fourth-year students (117 women and 60 men, mean age of 23.16 ± 3.82 years) from the podiatry (n = 39), nursing (n = 26), PT (n = 73), and medicine (n = 39) schools at a large Spanish university were included. Measurements were taken of their gross anatomy knowledge by means of the carpal and the tarsal bone tests. Students were asked to identify all carpal and tarsal bones in an illustration of the bony skeleton of both regions and were given a maximum of 5 minutes per test. Of a total of 15 bones to be labeled, the PT (11.07 ± 3.30) and podiatry (9.36 ± 2.93) students had the highest rate of correct answers compared with the medicine (6.13 ± 3.27) and nursing (4.04 ± 3.72) undergraduates. When assessing academic degrees and test scores, significant differences were observed between PT and podiatry participants vs those from the medicine and nursing schools (P < .001). Fourth-year students from the PT and podiatry programs correctly identified a higher number of carpal and tarsal bones than students from the nursing and medicine schools.

Non-specific low back pain (NSLBP) is common and often resistant to conventional physiotherapy. The diaphragm, given its dual role in posture and respiration, may be a therapeutic target. To determine whether diaphragm manual therapy plus conventional physiotherapy improves thoracic expansion and pulmonary function in NSLBP. A single-blind randomized controlled trial included 46 adults with NSLBP (mean age 46.0 ± 16.2 years; 43 % female; BMI 27.2 ± 5.4 kg/m²). Participants were randomized to an experimental group (n = 20) receiving diaphragm manual therapy plus physiotherapy or a control group (n = 26) receiving physiotherapy alone. Outcomes were inspiratory thoracic expansion, forced vital capacity (FVC), and forced expiratory volume in 1 s (FEV1), measured at baseline, post-treatment, and 10- and 30-day follow-ups. Repeated-measures ANOVA and Spearman correlation were used (α = 0.05). The experimental group showed greater improvements in thoracic expansion (mean difference = 3.31 cm; 95 % CI 2.69-3.93; p < 0.001; η² = 0.78), FVC (Δ = 1.24 L; 95 % CI 1.11-1.37; p < 0.001; η² = 0.76), and FEV1 (mean difference = 1.25 L; 95 % CI 1.12-1.38; p < 0.001; η² = 0.77) compared with controls. Thoracic expansion correlated with FVC (ρ = 0.731) and FEV1 (ρ = 0.751) at 30 days (both p < 0.001). Diaphragm manual therapy improved thoracic expansion and pulmonary function in NSLBP, supporting its role as an adjunct to physiotherapy. The trial has been registered under the name of "DIAFRAGMA" and number NCT06069388.

The incidence of falls in adults constitutes a public health problem, and the alteration in balance is the most important factor. It is necessary to evaluate this through objective tools in order to quantify alterations and prevent falls. This study aims to determine the existence of alteration of balance and the influence of age in a population of healthy women. Static posturography was performed on 49 healthy adult women with no history of falls in four different situations using the Romberg test with the NedSVE/IBV^® platform. The variables studied were the body sway area and the anteroposterior and mediolateral displacements. The situation of maximum instability occurred in RGC (p = 0.001), with a significant increase in anteroposterior oscillations regarding the ML (p < 0.001), with no correlation to age. Age alone does not influence the balance in the sample studied, other factors must come together to alter it. The joint cancellation of visual and somatosensory afferents could facilitate the appearance of falls, given that it is a situation of maximum instability. Proprioceptive training is interesting as a preventive strategy for falls.