The objective was to compare the effect of five mineral water mostly consumed in Cameroun on performance, haematological and behavioural parameters in rats. Twenty-four rats (140 g) were used for this study. Among the groups, there are a control group which received deionized water and five experimental groups which received different mineral water (Tangui, Supermont, Opur, Aquabelle and Semme) during 21 days. Rats were allowed for swimming exercise every alternate day between 11h and 17h. On the day 21, rats from each group were subjected to the forced swimming test with tail load. One hour after the forced swimming test, the open field test was carried out to evaluate their behaviour. Water and food consumption, body weight, relative organ weight and haematological parameters were evaluated. Results showed that all the mineral water used during this experimentation did not have any effect on water intake, food consumption, body weight and relative organ weight (p > .05). Significant increase (p < .01 – p < .001) in swimming time of rats consuming Tangui (445.00 ± 43.60 seconds) and Opur (450.80 ± 51.03 seconds) were observed as compared to the control group (325.50 ± 24.37 seconds). Results of behavioural and haematological parameters showed significant modifications in the same groups in comparison with control group (p < .01 – p < .001). Differences of swimming time, hematologic and behavioural parameters observed in rats having consumed Tangui and Opur could be due to the quantity of some minerals (calcium and magnesium) present in those drinks.

This study aimed to evaluate three training methods on the physical capacity of Cameroonians boxers in other to propose the best method for their preparation. Thus, thirty-six boxers aged twenty-three to twenty-six were recruited and divided into three groups of twelve boxers each. They were submitted to training session for eight weeks using the continuous method, the intermittent method and the mixed method for group one, two and three respectively. Anthropometric (weight, height and Body Mass Index (BMI)) and physiological (Maximal Oxygen Consumption (VO2max), Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), Blood Glucose Levels (BGL) and Blood Lactic Acid concentrations (BLA)) parameters were measured before and after the training session program. Results at the end of the program showed no significant variation of Blood Glucose Level of boxers between the three groups as well as inside the same group (p>0.05). On the other hand, significant differences (p<0.05-p<0.001) in weight, BMI, SBP, DBP, VO2max and Blood Lactic Acid concentrations were observed. Indeed, weight, BMI, SBP and DBP decreased significantly (p<0.05-p<0.001), while VO2max increased significantly in the three experimental groups (p<0.05-p<0.001). The analysis of these results reveals that the group having practiced the mixed training method showed the strongest rates of increase in VO2max (67.8±5.00 ml/min/kg). In addition, their VO2max at the end of the experimentation is largely above the average value defined by literature (64.8 ml/min/kg). This can justify the choice of the mixed training method for the physical preparation of Cameroonian boxers.