Performance Optimization in Streetlifting: The Combined Role of Nutrition, Lean Mass, and Sleep.

Streetlifting is a developing strength sport derived from calisthenics based on maximal external load performance in weighted pull-ups, dips, muscle-ups, and squat variations.

• The sport has undergone rapid global expansion, raising interest in sport-specific nutritional and recovery strategies.
• Scientific evidence directly focused on streetlifting remains limited at the time of this review.
• A narrative review design was adopted due to the scarcity of empirical studies on streetlifting.
• Searches were performed using the terms 'streetlifting AND nutrition,' 'streetlifting AND body composition,' and 'streetlifting AND sleep quality.'

Performance in streetlifting appears strongly driven by strength-to-bodyweight ratio, supported by low-to-moderate fat mass and adequate lean mass.

• Body composition was identified as a key performance determinant in streetlifting.
• Peer-reviewed studies involving comparable strength disciplines were included when directly applicable to performance or recovery determinants.
• The narrative review integrated findings from related strength sports due to the lack of streetlifting-specific empirical data.

Meeting energy requirements and consuming 1.2–1.5 g/kg/day of protein may enhance muscle protein synthesis and glycogen replenishment in streetlifting athletes.

• The recommended protein intake range identified from resistance training literature was 1.2–1.5 g/kg/day.
• Nutrient timing around training was highlighted as a strategy to support muscle protein synthesis and glycogen replenishment.
• Evidence was drawn from the broader resistance training literature rather than streetlifting-specific studies.

Creatine supplementation shows consistent benefits for maximal strength and ATP turnover in strength athletes.

• Among supplements reviewed, creatine was identified as having consistent supporting evidence.
• Benefits were specifically noted for maximal strength and ATP turnover.
• Other supplements reviewed were found to lack robust evidence for performance benefits in this context.

Sleep duration and quality contribute to neuromuscular recovery, endocrine balance, and cognitive readiness in strength athletes.

• Sport-specific findings on sleep in streetlifting were described as insufficient.
• Sleep was identified as relevant to neuromuscular recovery, endocrine balance, and cognitive readiness.
• Sleep optimization was listed as a recommended component of an integrated approach for streetlifting athletes.

Further sport-specific interventional and longitudinal studies are required to develop validated performance and health guidelines for streetlifting.

• The current evidence base relies on extrapolation from related strength disciplines rather than streetlifting-specific data.
• The authors call for interventional and longitudinal study designs to address the existing evidence gap.
• The goal identified is to develop 'validated performance and health guidelines' specific to streetlifting.