• 한국식생활문화학회지
• /
• 제33권3호
• /
• pp.236-242
• /
• 2018

The purpose of this study was to evaluate the nutritional knowledge and dietary behaviors of middle school students according to their mother's employment status. Of all 453 subjects, 52.1% were boys, and 67.5% of the mothers were employed. The total score of nutritional knowledge was 8.0 out of 10 for students with a non-working mom and 7.7 for those with a working mom, showing no significant difference. Among the 20 nutritional knowledge questions, correct answer rates for "lots of fruits may be eaten because of not gaining weight" (72.6% vs. 81.6%, p<0.05) and "eating raw carrots is better than eating fried ones with oil" (34.6% vs. 44.9%, p<0.05) were significantly higher in students with a working mom. The regularity of meals showed a significant difference according to the mother's employment, indicating that responses of "very regular" (62.4% vs. 72.1%) were high among students with a non-working mom and responses of "skipping breakfast" (31.4% vs. 19.7%) were higher in students with a working mom (p<0.05). The number of snacks a day was also significantly different according to the mother's employment, showing that 12.8% of the students with a working mom and only 3.4% of them with a non-working mom did not eat snacks at all (p<0.05). These results reveal no significant difference in middle school students' nutritional knowledge according to their mother's employment status; however, the students whose mother had a job were more likely to have more undesirable dietary behaviors such as irregular meals and snacking.

• 한국식품영양과학회지
• /
• 제40권4호
• /
• pp.544-556
• /
• 2011

요인분석을 이용하여 초등학생(4~6학년)과 중학생(2~3학년)이 인지하는 어머니의 양육방식과 식사지도방식에 관한 내재요인을 추출하고, 이들 요인들의 상호관련성 및 대상자들의 식행동과의 관련성을 살펴보았다. 어머니 양육방식은 총 10개의 요인(합리적 지도, 애정과 참여, 성취격려 및 기대, 일관성 있는 규제, 비난과 성냄, 과보호, 감정적 처벌, 육체적 처벌, 자녀가 좋아하는 것을 못하게 함으로써 처벌 및 처벌을 못함)으로 추출되었고, 2차 요인분석을 통하여 이들 10 요인은 3 양육방식(권위주의적인, 허용적인 및 권위있는)으로 축약되었다. 어머니의 식사지도방식은 총 8개의 요인(식사량 조절, 식품제한, 섭취강요, 모니터링, 바람직하지 않은 식행동 보여주기, 바람직한 식행동 보여주기, 편식 교정 교육, 바람직한 식행동 권장)으로 추출되었다. 초등학생과 중학생의 식행동 비교 결과, 중학생들은 초등학생에 비해 '부모와 함께 식사'하는 빈도가 낮으며 '건강에 유익한 식품 섭취빈도'는 낮고 '건강에 해로운 식품 섭취빈도'는 높았다. '권위주의적인' 방식을 택할수록 '섭취강요' 및 '바람직 하지 않은 식행동 보여주기' 경향이 높았고 이러한 관련성은 초등학생에서 더 높았다. '허용적인' 방식을 택할수록 '올바른 식습관 권장' 점수가 낮게 나타났다. '권위 있는' 방식은 초등학생과 중학생 모두 '바람직하지 않은 식행동 보여주기'를 제외한 모든 식사지도방식 요인과 유의한 양의 상관관계를 나타내었고(p<0.0001), '편식개선 노력'과 '바람직한 식행동 권장' 점수가 가장 높았다. '권위주의적인' 방식일수록 초등학생의 '건강에 해로운 식품 섭취빈도'가 높았고(p<0.001), '허용적인' 방식일수록 중학생의 '혼자식사' 및 '건강에 해로운 식품 섭취빈도'가 높았다. '권위 있는' 방식을 택할수록 초등학생과 중학생 모두 '건강에 유익한 식품 섭취빈도'가 높았다(p<0.001). 또 '권위 있는' 방식은 초등학생이 '부모와 함께 식사'하는 횟수는 높고 '혼자 식사'하는 횟수는 낮았으며 중학생에서는 관련성이 없었다. 이상에서 볼 때, 어머니의 양육방식과 차원, 식사지도방식의 차원들은 상호관련성이 높으며, 어머니의 '권위 있는' 양육방식은 초등학생 및 중학생에서 가장 바람직한 것으로 드러났다. 한편, 초등학생과 중학생에서 가장 바람직하지 못한 양육방식은 각각 '권위주의적인' 방식과 '허용적인' 방식으로 나타났고, 어머니의 양육방식은 자녀의 연령에 따라 다르게 영향을 미치는 것으로 드러났다.

• Animal Bioscience
• /
• 제37권5호
• /
• pp.944-951
• /
• 2024

Objective: Parturition is crucial for dams, their calves, and cow managers. The prediction of calving time, which assists cow managers to decide on the relocation of cows to maternity pens and necessity of human supervision, is a pivotal aspect of livestock farming. However, existing methods of predicting calving time in dairy cows based on hormonal changes and clinical symptoms are time-consuming and yield unreliable predictions. Accordingly, we investigated whether heart rate variability (HRV) which is a non-invasive assessment of autonomic nervous system (ANS) activity and behavior during the prepartum period would be useful for predicting calving time in dairy cows. Methods: Eight pregnant cows were surveilled under electrocardiogram and video recordings for HRV and behavioral analyses, respectively. HRV parameters in time and frequency domains were evaluated. A 24-h time budget was calculated for each of six types of behavior (standing and lying with or without rumination, sleeping, and eating). Results: Heart rate on calving day is considerably higher than those recorded on the days preceding calving. Low frequency power declined, whereas high frequency power escalated on the calving day compared to the period between 24 and 48 h before calving. The time budget for ruminating while lying decreased and that while standing increased markedly on the calving day compared to those allocated on the preceding days; nonetheless, the total time budget for ruminating did not differ during the prepartum period. Conclusion: We elucidated the ANS activity and behavioral profiles during prepartum period. Our results confirm that HRV parameters and behavior are useful for predicting calving time, and interestingly indicate that the time budget for ruminating while standing (or lying) may serve as a valuable predictor of calving. Collectively, our findings lay the foundation for future investigations to determine other potential predictors and formulate an algorithm for predicting calving time.