Relationship between depression and movement quality in normal young adults

The improvement effect of exercise on rats with chronic stress-induced depression-like behavior: a discussion based on the kynurenine pathway

OBJECTIVE

To observe the effects of 4 weeks of voluntary wheel running on depressive-like behavior in a rat chronic stress-induced depression model to explore the anti-depressive mechanism of exercise.

METHODS

In this observational study, 36 Sprague-Dawley rats were randomly divided into control, stress model, and stress exercise groups (12 rats/group). The control group received no intervention, and the stress model and stress exercise group rats underwent chronic mild unpredictable stress and isolation. The stress exercise group rats also underwent 4 weeks of voluntary wheel running. Behavioral changes and hippocampal protein and mRNA expression levels were detected.

RESULTS

Voluntary wheel running significantly increased horizontal and vertical movements, sucrose intake, and the sucrose preference percentage and reduced immobility time in the forced swimming test in depression model rats. The hippocampal tumor necrosis factor-α, interleukin (IL)-6, IL-1β, and quinolinic acid levels were significantly decreased, while the IL-4, IL-10, and kynurenic acid levels were significantly increased. Kynurenine-3-monooxygenase and 3-hydroxyanthranilate-3, 4-dioxygenase mRNA levels were downregulated, and kynurenine aminotransferase mRNA was upregulated.

CONCLUSION

Voluntary wheel running improved depressive-like behavior in depression model rats. The mechanism may be related to a kynurenine pathway metabolite level imbalance, which has neurotoxic and neuroprotective effects, caused by long-term voluntary wheel running.

Efficacy of basic body awareness therapy on functional outcomes: A systematic review and meta-analysis of randomized controlled trials

PURPOSE

This study examined the efficacy of basis body awareness therapy (BBAT) on functional outcomes and quality of life (QoL) in patients with mental health problems and long-lasting conditions including musculoskeletal disorders, chronic and psychosomatic pain, and neurological conditions.

MATERIAL AND METHODS

Randomized controlled trials (RCTs) were obtained from MEDLINE, EMBASE, CINAHL, CENTRAL, and PEDro from inception to April 1st, 2022. A random effects meta-analysis was performed to explore the efficacy of BBAT versus non-active and active control conditions.

RESULTS

Eight RCTs (n BBAT = 307, n controls = 428) were included. There was no evidence for reductions in anxiety (standardized mean difference [SMD] = -1.42, 95% confidence interval [CI] = -3.30 to 0.46, p = 0.14), depression (SMD = -0.82, 95% CI = -1.85 to 0.21, p = 0.12), and no improvements in global assessment of functioning for functioning (GAF-F) (SMD = 0.58, 95% CI = -0.03 to 1.19, p = 0.06) or for symptoms (GAF-S) (SMD = 0.76, 95% CI = -0.44 to 1.96, p = 0.21) in BBAT versus non-active control conditions. BBAT reduced anxiety significantly more than active interventions (SMD = -0.84, 95% CI = -1.17 to -0.51, p < 0.001). No significant differences between BBAT and active control conditions were found for reduction in depression (SMD = -1.16, 95% CI = -2.74 to 0.41, p = 0.15) or in self-reported pain (SMD = 0.08, 95% CI = -0.25 to 0.40, p = 0.65). Active control conditions were superior in improving QoL (SMD = 0.83, 95% CI = 0.49 to 1.17, p < 0.001), GAF-F (SMD = 1.58, 95% CI = 0.29 to 2.86, p = 0.016) and GAF-S (SMD = 1.19, 95% CI = 0.85 to 1.53, p < 0.001).

CONCLUSIONS

Physiotherapists should be cautious in adopting BBAT, noting there is no high-quality evidence to support its' use to improve functionality and QoL in patients with mental health problems and/or long-lasting conditions.

Losing trust in body sensations: Interoceptive awareness and depression symptom severity among primary care patients

BACKGROUND

Interoceptive dysfunction is emerging as an important biomarker for mental illnesses, such as depression which is a leading cause of disability and death worldwide. Little empirical research explains the relationship between interoception and depression.

METHODS

Using multivariable linear regression models and cross-sectional baseline data from a randomized control trial of primary care patients (N = 281), we analyzed the relationship between depression severity (none/slight, mild, and moderate/severe via the PROMIS depression scale) and the Multidimensional Assessment of Interoceptive Awareness (MAIA) subscales (noticing, not distracting, not worrying, attention regulation, emotional awareness, selfregulation, body listening and trusting).

RESULTS

Adjusted results suggest moderate/severe depression was inversely associated with body trusting (p < .001), body listening (p < .01), noticing (p < .01), emotional awareness (p < .01), and self-regulation (p < .05). Mild depression was inversely associated with body trusting (p <.01). After correction for multiple comparisons, the relationship between MAIA body trusting and mild and moderate/severe depression remained significant.

LIMITATIONS

Our findings may not be generalizable to other populations or healthcare settings. Additionally, findings cannot be interpreted as causal due to our inability to establish temporality.

CONCLUSIONS

Lack of body trust appears important for understanding how individuals with depression interpret or respond to interoceptive stimuli and may represent the leading edge of interoceptive dysregulation seen in depressive disorders. Our findings support a hypothesis about mechanisms of action underlying hypoactivation in depression. Further, these results support clinical identification of subtypes of depression, such as those with high levels of co-occurring anxiety.