Acute and Longitudinal Effects of Concussion on Reactive Balance in Collegiate Athletes.

Background: Postural instability is a common observation after concussions, with balance assessments playing a crucial role in clinical evaluations. Widely used post-concussion balance tests focus primarily on static and dynamic balance, excluding the critical aspect of reactive balance.

Objectives: This study investigated the acute and longitudinal effects of concussion on reactive balance in collegiate athletes.

Confidence to Return to Play After Concussion.

Context: The sequelae of concussion may have psychological consequences that affect an athlete's ability to return to play (RTP). However, confidence of RTP readiness is rarely monitored after a concussion.

Design: This study examined the acute and longitudinal implications of concussion on an athlete's confidence to RTP, the relationship between self-reported symptoms and athlete confidence to RTP, and interactions between concussion symptoms, sex, sport type (contact vs noncontact), and confidence to RTP.

Acute and Longitudinal Effects of Sport-related Concussion on Reactive Balance.

Postural instability is a common observation after concussions, with balance assessments playing a crucial role in clinical evaluations. Widely used post-concussion balance tests focus primarily on static and dynamic balance, excluding the critical aspect of reactive balance. This study investigated the acute and longitudinal effects of concussion on reactive balance in collegiate athletes.

Instrumented Static and Reactive Balance in Collegiate Athletes: Normative Values and Minimal Detectable Change.

Context: Wearable sensors are increasingly popular in concussion research because of their objective quantification of subtle balance deficits. However, normative data and minimal detectable change (MDC) values are necessary to serve as references for diagnostic use and tracking longitudinal recovery.

Objective: To identify normative and MDC values for instrumented static- and reactive-balance tests, an instrumented static mediolateral (ML) root mean square (RMS) sway standing balance assessment and the instrumented, modified push and release (I-mP&R), respectively.

Aging changes in osteon mineralization in the human femoral neck.

Age-related mineral changes are associated with material property changes in cortical bone, which may affect its ability to transmit loads and resist fracture from falling. Aging changes in the mineral content of the femoral neck cortical bone are partly determined by osteonal remodeling events. The objective of this study was to measure mineral differences within the osteonal unit in the human femoral neck.

Effects of season, lactation and plane of nutrition on prolactin concentrations in ovine plasma and the role of prolactin in the control of ewe fertility.

Plasma prolactin concentrations during the first 2 months after lambing, at oestrus, and during early pregnancy were investigated in 2 experiments in which Finn x Dorset Horn ewes were mated at an induced oestrus approximately 9 weeks after lambing. Mean prolactin concentrations between lambing and mating were dependent on seasons, being greater than 260 ng/ml plasma in lactating ewes mated in July and less than 150 ng/ml in those mated in October. Within 8 days of weaning of the lambs at 50 days post partum values declined to 122 and 30 ng/ml respectively.

The amino acid supplementation of barley for the growing pig. 2. Optimal additions of lysine and threonine for growth.

1. Thirty-three diets were made by adding to ground barley combinations of L-lysine (0--6.0 g/kg) and L-threonine (0--3.

The protein-sparing effect of carbohydrate. 1. Nitrogen retention of growing pigs in relation to diet.

1. Measurements were made of the losses of nitrogen in the faeces and urine of sixty pigs of approximately 33 kg, given dietary regimens comprising twenty-nine combinations of fish flour (0-800 g/d) and maize starch (0-1200 g/d). 2.