Peter Chrysosferidis

• Bachelor of Science emphasizing Exercise Physiology
• Research Assistant at Georgia Southern University

Dobson, J, Harris, B, Claytor, A, Stroud, L, Berg, L, and Chrysosferidis, P. Selected cardiovascular and psychological changes throughout a competitive season in collegiate female swimmers. J Strength Cond Res XX(X): 000-000, 2020-Measures that reflect the balance between training-induced fatigue and recovery can provide valuable feedback to help r...

This article provides a thorough description and photographs of the proper technique for a deficit deadlift. This exercise is an advanced variation of the standard deadlift and is designed to increase strength within the lower-body musculature. Incorporation of the deficit deadlift may benefit those requiring explosive power, sprinting, or jumping.

Considered by many exercise physiologists as the greatest predictor of an individual’s cardiovascular health and overall fitness, maximal oxygen uptake, or VO2max, can be defined as the maximal volume of oxygen consumed, transported, and delivered to working skeletal muscle during intense exercise. Determining VO2max can be useful in all areas of h...

The intent of this study was to compare training load by measuring active training minutes (ATmin) and percent of practice time spent in three defined zones of percent maximum heart rate (%HRHigh, %HRMid, %HRLow) as well as monitoring self-reported measures of exertion and recovery between positions (Forwards [F], Midfielders [M], and Backs [B]) du...

The intent of this study was to compare training load by measuring active training minutes (ATmin) and percent of practice time spent in three defined zones of percent maximum heart rate (%HRHigh, %HRMid, %HRLow) as well as monitoring self-reported measures of exertion and recovery during pre- and in-season training.

Examination of Smooth Pursuit and Saccadic eye movements in relationship to postural control metrics (center of pressure)

Saccadic eye movements appear to not be influenced by a history of sport-related concussion

Among those who have a history of two or more sport-related concussions postural control is unstable when compared to those that do not have a history of sport-related concussion

Saccadic eye movements during the sport-like antisaccade assessment appear to not be related to neurocognitive scores on the ImPACT test

Postural deficits have been extensively noted in sport-related concussions. There have been postural instabilities in concussed athletes anywhere from 24 hours, up to six months. Altered postural control has been noted in those that have a history of concussion when compared to those that do not. However, there is sparse literature that assesses th...

Weekly Training Load (TL) and perceived stress and recovery across a competitive pre- and in-season collegiate soccer season

The physical requirements of a soccer match have previously been demonstrated to vary between playing position. Previous studies have reported different positions require varying amounts of sprinting, jogging, and walking during match play. PURPOSE: The intent of this study was to compare distance traveled, percent of practice time spent in three z...

Seasonal training and competition may result in symptoms of overtraining, under recovery, and decreases in performance. Collegiate soccer pre-season is short, intense, and sometimes requires multiple training sessions in a day to prepare for the upcoming competitive season. Due to this heavy training schedule, it is important to track training load...

The preseason for collegiate soccer is short and involves intense training, sometimes multiple sessions a day, to get ready for the upcoming competitive season. Therefore, athletes need to arrive to preseason training fit and prepared to train. One way to evaluate off season preparation is by determining the quality of training or how well a player...

Previous research has reported that incoming collegiate soccer freshman athletes outperformed upperclassmen during preseason performance and fitness tests. We speculated these results may have been a result of freshman wanting to impress their new coaches and earn playing time. Based on these results we speculated training load and perceived recove...

Countermovement double jumps, vertical jumps, and single leg jumps have been widely used as an indirect measurement of anaerobic power, strength, and fatigue. Vertical jump has been used previously as a predictor tool of performance. Single leg jumps have been used to assess bilateral strength differences in isokinetic knee strength. Countermovemen...

During object tracking, reflexive eye movements away from the target object or directional errors occur in order to capture visual field information. These ‘off-target’ visual data aid the brain in determining the velocity, location, and orientation of the objects in motion. However, an exuberant amount are classified as prosaccade errors and can d...

Previous literature has observed a divergent motor control strategy to maintain upright stance between athletes that train on stable surfaces, such as basketball players, compared to athletes who train on unstable surfaces, such as surfers. However, little is known regarding the influence of training surface on the postural control system. PURPOSE:...

Recovery from training especially during periods of intense practice is important to an athlete’s preparedness for subsequent training and performance. Recovery training sessions can be used as a time to focus on active recovery and team tactics, while easing physical strain. PURPOSE: The intent of the study was to examine external and internal mea...

Time spent in higher speed zones has been reported to decrease during the latter part of the soccer season. Changes in running performance may be a result of increases in training load and perceived stress/recovery across the season. The use of a global positioning system (GPS) and athlete response questionnaire may provide useful information to mo...

The physical requirements of a soccer match have previously been demonstrated to vary between playing position. PURPOSE: The aim of the investigation was to examine the type of running performed during training in collegiate soccer players at different positions and between starters and non-starters. A second purpose was to examine perceived exerti...