The effects of acute exercise on tobacco cravings and withdrawal symptoms in temporary abstinent pregnant smokers

Introduction

Smoking during pregnancy is common, and quitting at any point during pregnancy can yield benefits to both the fetus and mother. Smoking cessation is typically followed by withdrawal symptoms and a strong desire to smoke, both of which are likely to contribute to relapse. Research has shown that a bout of exercise minimizes cravings and tobacco withdrawal symptoms (TWS) after temporary abstinence in smokers, but these findings have not been replicated in pregnant smokers. This study examined the effect of 20 min of exercise on cravings (primary outcome) and TWS (secondary outcomes) among temporary abstinent, inactive pregnant smokers.

Methods

Thirty female smokers (Mean(M) age = 25.7 years, Standard Deviation(SD) = 5.5; M weeks pregnant = 18.2, SD = 5.3; Fagerstrom Test for Cigarette Dependence = 3.3, SD = 2.2; M 9.3 cigarettes/day, SD = 4.7; M hours abstained = 17.2, SD = 2.8) were randomized to 20 min of mild-to-moderate intensity exercise (EC; n = 14) or passive (PC; n = 16) condition. Cravings and TWS were assessed immediately before, during (at 10 min), immediately post, and at 10, 20, and 30 min post-condition.

Results

A 2 (condition) × 6 (time) repeated measures ANOVA revealed that the EC significantly (p < 0.05) reduced cravings (?² = 0.46) compared with the PC, across time. Non-significant, but nevertheless, large effects were evident favouring the EC over time for TWS restlessness (?² = 0.34), stress (?² = 0.24), irritability (?² = 0.21), tension (?² = 0.15), and depression (?² = 0.14).

Conclusions

Consistent with previous research, this study reveals that in pregnant smokers, a bout of exercise is associated with a reduction in cravings and similar patterns exist for TWS. Therefore, exercise may have the potential to assist in the initial stages of smoking cessation attempts during pregnancy.     

An empirical typology of seriously and persistently mentally ill patients using symptom and social functioning factors

This study generated an empirical, statistically based typology that used both symptom data and social functioning dimensions to define subtypes of seriously mentally ill patients. The intent of using social functioning information was to explore the degree to which it improves clinicians' understanding of and treatment planning for diverse subgroups of patients. Social functioning dimensions and symptom data collected on a group of SPMI (seriously and persistently mentally ill) patients were factor analyzed and then submitted to a cluster analysis that yielded five meaningful patient subtypes. Demonstrations of the usefulness of this classification included significant subgroup differences on clinically important external variables, including needs for specific types of treatment and service consumption. For comparison purposes, the failure of the DSM-III diagnostic classification to distinguish patients on the clinically relevant criteria also was demonstrated.     

Contributions of individual syndromes to global psychopathology ratings for mental health and substance abuse patients

Used the SCL-90 Analogue to rate nine psychiatric syndromes-and overall psychopathology in 1,046 mental health and 809 substance abuse patients admitted to a large metropolitan, community mental health center. Stepwise multiple regressions of the nine syndrome ratings on the global psychopathology ratings for each sample indicated that different syndromes contributed meaningful amounts of variance to the explanations of the global psychopathology ratings. The salient syndromes for the mental health patients were Interpersonal Sensitivity and Psychoticism, whereas those for the substance abuse patients were Anxiety and Paranoid Ideation. Implications of the results for the wisdom of averaging syndrome ratings to calculate overall psychopathology were discussed.