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An experimental study to evaluate musculoskeletal disorders and postural stress of female craftworkers adopting different sitting postures

100%

Maity P. , De S. , Pal A. , Dhara P. C.

International Journal of Occupational Safety and Ergonomics

2016

tom Vol. 22, No. 2

257--266

This study aimed to evaluate musculoskeletal disorders (MSDs) and postural stress among female craftworkers. The study was carried out on 75 adult female craftworkers in different districts of West Bengal. The prevalence of MSDs, body part discomfort (BPD) rating and body joint angles of the workers were evaluated with standard methods. Electromyography (EMG) of the shoulder and back muscles was recorded with the BIOPAC system. The prevalence of MSDs, BPD rating and deviation of joint angle were comparatively lower in the case of sitting on the floor with folded legs than squatting and sitting on the floor with stretched legs postures. The EMG and rms values of the shoulder and back muscles were comparatively lower in this posture. Therefore, it was concluded that sitting on the floor with folded legs was less hazardous and it imposed less postural stress in comparison to other sitting postures.

Effect of training on morphological, physiological and biochemical variables of U-19 soccer players

100%

Manna I. , Khanna G. L. , Dhara P. C.

2011

tom 03

nr 4

The purpose of the study was to find out the effect of training on selected morphological, physiological and biochemical variables in soccer players under 19 years of age.A total of 30 Indian male soccer players under 19 years of age (age: 16.00-18.99 yr) volunteered for this study. The training sessions were divided into 2 phases (i) Preparatory Phase (PP, 8 weeks) and (ii) Competitive Phase (CP, 4 weeks). The training programme consisted of aerobic, anaerobic and skill development, and was completed 4 hrs/day; 5 days/week. Selected morphological, physiological and biochemical variables were measured at zero level (baseline data, BD) and at the end of PP and CP.A significant increase (P<0.05) in lean body mass, VO2max, anaerobic power, grip and back strength, urea and uric acid levels; and a decrease (P<0.05) in percentage of body fat, haemoglobin, total cholesterol, and LDL-C levels have been noted in PP and CP when compared to BD. However, no significant change was noted in stature, body mass, maximal heart rate, triglyceride and HDL-C levels of the players after the training.This study would provide useful information for training and selection of soccer players of under-19-year-old groups.