Motor fitness , particularly balance , was the most studied fitness component , while cardiorespiratory fitness was the least studied .
While we wait for more evidence to be accumulated in preschool children , the PREFIT battery hereby proposed is a useful tool for assessing physical fitness in children aged 3–5 years
Background Physical fitness is a powerful health marker in childhood and adolescence , and it is reasonable to think that it might be just as important in younger children , i.e. preschoolers .
At the moment , research ers , clinicians and sport practitioners do not have enough information about which fitness tests are more reliable , valid and informative from the health point of view to be implemented in preschool children .
Objective Our aim was to systematic ally review the studies conducted in preschool children using field-based fitness tests , and examine their ( 1 ) reliability , ( 2 ) validity , and ( 3 ) relationship with health outcomes .
Our ultimate goal was to propose a field-based physical fitness-test battery to be used in preschool children .
After analyzing the information retrieved in the current systematic review about fitness testing in preschool children , we propose the PREFIT battery , field-based FITness testing in PREschool children .
Hand span influences optimal grip span in male and female teenagers.
PURPOSE To determine if there is an optimal grip span for determining the maximum h and grip strength in male and female teenagers , and if the optimal grip span was related to h and span . If they are related then the second aim was to derive a mathematic equation relating h and span and optimal grip span . METHODS One hundred healthy teenage boys ( 15.1 + /- 1.1 y ) and 106 girls ( 15.4 + /- 1.3 y ) were evaluated ( age range , 13 - 18 y ) . Each h and was r and omly tested on 10 occasions using 5 different grip spans , allowing a 1-minute rest between attempts . The  h and span  was measured from the tip of the thumb to the tip of the small finger with the h and opened as wide as possible . RESULTS The results showed that an optimal grip span to determine the maximum h and grip strength was identified for both genders , and the optimal grip span and h and span correlated in both genders . CONCLUSIONS The results suggest that there is an optimal grip span to which the dynamometer should be adjusted when measuring h and grip strength in teenagers . The optimal grip span was influenced by h and span in both genders . For males the optimal grip span can be derived from the equation y = x/7.2 + 3.1 cm , and for females from the equation y = x/4 + 1.1 cm . where y is the optimal grip span and x is the h and -span . These equations may improve the reliability and accuracy of the results and may guide clinicians and research ers in selecting the optimal grip span on the h and dynamometer when measuring h and grip strength in teenagers
Motor fitness , particularly balance , was the most studied fitness component , while cardiorespiratory fitness was the least studied .
While we wait for more evidence to be accumulated in preschool children , the PREFIT battery hereby proposed is a useful tool for assessing physical fitness in children aged 3–5 years
Background Physical fitness is a powerful health marker in childhood and adolescence , and it is reasonable to think that it might be just as important in younger children , i.e. preschoolers .
At the moment , research ers , clinicians and sport practitioners do not have enough information about which fitness tests are more reliable , valid and informative from the health point of view to be implemented in preschool children .
Objective Our aim was to systematic ally review the studies conducted in preschool children using field-based fitness tests , and examine their ( 1 ) reliability , ( 2 ) validity , and ( 3 ) relationship with health outcomes .
Our ultimate goal was to propose a field-based physical fitness-test battery to be used in preschool children .
After analyzing the information retrieved in the current systematic review about fitness testing in preschool children , we propose the PREFIT battery , field-based FITness testing in PREschool children .